PROJECT BLUE BOOK

SMC
STUDY NO.102-EL-55/2-79
ANALYSIS OF REPORTS OF
UNIDENTIFIED AERIAL OBJECTS Special Report No.14
PROJECT NO. 10073
5 MAY 1955
Scrial to 1003287
95
7-3745-40d
Copy No.
LINCL
-

answer the question "What is a
emphasized that this was only incidental to the primary purpose of the
study, the determination of the probability that any
identified aerial objects represented observations o lying saucers", as
defined on Page l.
consuming.
For this study a panel of consultants was formed, consisting of both
experts within and outside ATIC. During the course of the work, guidance
available from the panel cover fields and numerous
specialized fields.
preserved in an orderly fashion suitable e for ready reference. These
2
1

constructed as shown in the diagram, light should have
been seen at all times. Because of this conflict the
drawing is not ot considered reliable, and without the draw-
ing, there is not ot enough detail in the description to make
it useful for this study.
ers performed by the object are
unique both among
UNKNOWNS. .
Cases VIII to XII satisfy Conditions I through 3, but they do not
other are as follows:
(8) Case VIII. The object is smooth, with no protrusions
or other details.
(9) Case IX. The object had rocket or jet pods on each
side that were shooting ou lames.
(10) The object had a a fin or
(11) Case XI.
windows, on its under side.
92

good UNK
UNKNOWN had it not been possible to establish their identity.
This is, of course, contrary to the bulk of the publicity y that has been
given to this problem. The reason for the nature of f this publicity y was
clearly brought out during the re-evaluation study. I It is a definite fact that
saucers" are real and are some form of sinister contrivance. This reaction
feeling of skepticism The reader eventually
reaches a point of saturation, after which reports contain no new infor-
mation at all and are no longer of any interest. This feeling of surfeit was
necessitated a conscious effort on their part to remain objective.
93

ships necessitated an exhaustive study of selected facets of the data in order
to draw any valid conclusions.
A critical examination of the distributions of the important char-
acteristics of sightings, plus an intensive study of the s sightings evaluated
as UNKNOWN, led to th the conclusion that a combination of factors, prin-
cipally the reported maneuvers of the objects and the unavailability of
supplemental data such as aircraft flight plans or balloon-launching records,
resulted in the failure to identify as KNOwNS most of the reports of objects
classified as UNKNOWNS.
An intensive study, aimed at finding a verified example of a "flying
the data as a whole failed to reveal atterns or trends.
Therefore, on the basis of this evaluation of the information, it is
considered to be highly improbable that any of the reports of unidentified
technologi-
94

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--- APPENDIX A
--
TABULATIONS O FREQUENCY AND PERCENTAGE
i DISTRIBU
0
C
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95 and 96

INDEX OF TABLES
Page
Table Al. Evaluation of All Sightings by Years 107
Table A2. Evaluation of Unit Sightings by Years . . 107
Table A3. Evaluation of Object Sightings by Years . 108
Table A4. Evaluation of All Sightings by Month of Year, All Years. 109
Table A5. Evaluation of All Sightings by Month of Year, 1947 110
Table A6. Evaluation of All Sightings by Month of Year, 1948 . 111
Table A7. Evaluation of All Sightings by Month of Year, 1949 - . 112
Table A8. Evaluation of All Sightings by Month of Year, 1950 113
Table A9. Evaluation of All Sightings by Month of Year, 1951 . 114
Table A10. Evaluation of All Sightings by Month of Year, 1952 . 115
Table All. Evaluation of Unit Sightings by Month of Year, All . . 116
Table A12. Evaluation of Unit Sightings by Month of Year, 1947 . . 117
Table Al3. Evaluation of Unit Sightings by Month of Year, 1948 * . 118
Table A14. Table Al4. Evaluation of Unit Sightings by Month of Year, 1949 Evaluation of Unit Sightings by Month of Year, 1949 = . a 119 119
Table A15. Table Al5. Evaluation of Unit Sightings by Month of Year, Evaluation of Unit Sightings by Month of Year, 1950 1950 120
Table A16. Evaluation of Unit Sightings by Month of Year, 1951 . - 121
Table Al7. Table Al7. Evaluation of Unit Sightings by Month of Year, 1952 a . 122 122
Table A18. Table A18. Evaluation of Object Sightings by Month of Year, All Years Evaluation of Object Sightings by Month of Year, All Years . 123
C
Table A19. Table A19. Evaluation of Object Sightings by Month of Year, 1947 124
Table A20. Table A20. Evaluation of Object Sightings by Month of Year, 1948 Evaluation of Object Sightings by Month of Year, 1948 125
Table A21. Evaluation of Object Sightings by Month of Year, 1949 126
Table A22. TOL Evaluation of Object Sightings by Month of Year, 1950 127
Table A23. Evaluation of Object Sightings by Month of Year, 1951 128
0
Table A24. Evaluation of Object Sightings by Month of Year, 1952 129
Table A25. Evaluation of All Sightings by Sighting Reliability Groups, All Years 130
Table A26. Evaluation of All Sightings by Sighting Reliability Groups, 1947 . . 130
Table A27. Evaluation of All Sightings by Sighting Reliability Groups, 1948 130
Table A28. Evaluation of All Sightings by Sighting Reliability Groups, 1949 130
----- Table A29. Evaluation of All Sightings by Sighting Reliability Groups, 1950 131
Table A30. Evaluation of All Sightings by Sighting Reliability Groups, 1951 131
Table A31. Evaluation of All Sightings by Sighting Reliability Groups, 1952 .. 131
Table A32. Evaluation of Unit Sightings by Sighting Reliability Groups, All Years 132
Table A33. Evaluation of Unit Sightings by Sighting Reliability Groups, 1947 . . . 132
97

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INDEX OF TABLES
(Continued)
Page 1
Table A34. Evaluation of Unit Sightings by Sighting Reliability Groups, 1948 , . 132
Table A35. Evaluation of Unit Sightings by Sighting Reliability Groups, 1949 . . . 132
Table A36. Evaluation of Unit Sightings by Sighting Reliability Groups, 1950 . . 133
Table A37. Evaluation of Unit Sightings by Sighting Reliability Groups, 1951. .. 133 -
Table A38. Evaluation of Unit Sightings by Sighting Reliability Groups, 1952. · . . . 133
Table A39. Evaluation of Object Sightings by Sighting Reliability Groups, All Years 134 1
Table A40. Evaluation of Object Sightings by Sighting Reliability Groups, 1947 . . . 134
Table A41. Evaluation of Object Sightings by Sighting Reliability Groups, 1948 . . 134 1
Table A42. Evaluation of Object Sightings by Sighting Reliability Groups, 1949 134
Table A43. Evaluation of Object Sightings by Sighting Reliability Groups, 1950 135 1
Table A44. Evaluation of Object Sightings by Sighting Reliability Groups, 1951 135
Table A45. Evaluation of Object Sightings by Sighting Reliability Groups, 1952 135 •|
Table A46. Table A46. Evaluation of All Sightings for Evaluation of All Sightings for A Sighting Reliability Groups,
Military Observer Military Observers 136 136
Table A47. Evaluation of All Sightings for Evaluation of All Sightings fo roups, roups, | |
Civilian Observers Civilian Observers 136
Table A48. Evaluation of All Sightings for oups, s
Military Observers 136 - |
Table A49. Evaluation of All Sightings for oups,
Civilian Observers Civilian Observers 136
Table A50. Evaluation of All Sightings for roups, oups,
Military Observers Military Observers 137
Table A51. Evaluation of All Sightings for roups, ps,
Civilian Observers 137 137
Table A52. Evaluation of All Sightings roups,
Military Observers 137
Table A53. Evaluation of All Sightings for 1
Civilian Observers 137
Table A54. Evaluation of All Sightings for
Military Observers 138
Table A55. Evaluation of All Sightings for Groups,
Civilian Observers 138
Table A56. Evaluation of All Sightings for Groups,
Military Observers 138
Table A57. Evaluation of All Sightings for roups,
Civilian Observers • 138
Table A58. Evaluation of All Sightings for 1952 by Sighting iability Groups,
Military Observers 139
98

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INDEX OF TABLES
(Continued)
Page
Table A59. Evaluation of All Sightings for 1952 by Sighting Reliability Groups,
Civilian Observers 139
Table A60. Reported Colors of Objects Sighted by Years, All Sightings 140
Table A6l. Reported Colors of Objects Sighted by Years, Unit Sightings . 140
Table A62, Reported Colors of Objects Sighted by Years, Object Sightings 140
Table A63. Evaluation of All Sightings for All Years by Colors Reported . 141
Table A64. Evaluation of Unit Sightings for All Years by Colors Reported 142
Table A65. Evaluation of Object Sightings for All Yea by Colors Reported 143
Table A66. Evaluation of All Sightings for All Years Number Objects per Sighting,
One Object 144
Table A67. Evaluation of All Sightings ears ects per Sighting,
Two Objects. 144
Table A68. Evaluation of All Sightings for All per Sighting
Three to Ten Objects . 145
Table A69. Evaluation of All Sightings for All Years Table A69. Evaluation of All Sightings for All Number of Number Objects per Sighting,
Eleven or More Objects Eleven or More Objects 145
Table A70. Evaluation of All Sightings for All Years by Evaluation of All Sightings for All Years Number Objects Objects per Sighting, per Sighting,
Number of Objects Not Stated 146
Table A71. Evaluation of Unit Sightings for All Years by Evaluation of Unit Sightings for All Years by Number Number per Sighting
One Object 147
Table A72. Evaluation of Unit Sightings for All Years Evaluation of Unit Sightin by Number Number per Sighting, Sighting,
Two Objects. Two Objects. . 147
Table A73. Table A73. Evaluation of Unit Sightings for Evaluation of Unit Sightings for All Years by Number Years by Number per Sighting,
Three to Ten Objects . . Three to 148
Table A74. Table A74. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting, Evaluation of Unit Sightings for by Numbe ghting
Eleven or More Objects 148
Table A75. Evaluation of Unit Sightings for All Number Sighting,
0 Number of Objects Not Stated 149
Table A76. Evaluation of Object Sightings Sighting
One Object 150
Table A77. Evaluation of Object Sightings
Two Objects 150
-
Table A78. Evaluation of Object Sightings per Sighting,
Three to Ten Objects 151
Table A79. Evaluation of Object Sightings for All by Number Objects per Sighting,
Eleven or More Objects . 151
Table A80. Evaluation of Object Sightings for Number of Objects per Sighting,
Number of Objects Not Stated 152
Table A8l. Evaluation of All Sightings by Duration of Sighting, ears 153
Table A82. Evaluation of All Sightings by Duration of Sighting, 1947 153
S
99

-
INDEX OF TABLES
(Continued)
Page -
Table A83. Evaluation of All Sightings by Duration of Sighting, 1948 154
Table A84. Evaluation of All Sightings by Duration of Sighting, 1949 154
Table A85. Evaluation of All Sightings by Duration of Sighting, 1950 155
Table A86. Evaluation of All Sightings by Duration of Sighting, 1951 155
Table A87.1 Evaluation of All Sightings by Duration of Sighting, 1952 156
Table A88. Evaluation of Unit Sightings by Duration of Sighting, All Years 157 1
Table A89. Evaluation of Unit Sightings by Duration of Sighting, 1947 . 157
Table A90. Evaluation of Unit Sightings by Duration of Sighting, 1948 158 1
Table A91. Evaluation of Unit Sightings by Duration of Sighting, 1949 158
Table A92. Evaluation of Unit Sightings by Duration of Sighting, 1950 . 159
Table A93. Evaluation of Unit Sightings by Duration of Sighting, 1951 . 159 i
Table A94. Evaluation of Unit Sightings by Duration of Sighting, 1952 . . . 160
Table A95. Evaluation of Object Sightings by Duration of Sighting, All Years. . . - 1o1 161
Table A96. Table A96. Evaluation of Object Sightings by Duration of Sighting, Evaluation of Object Sightings by Duration of Sighting, 1947 1947 . 161 161
1 1
Table A97. Table A97. Evaluation of Object Sightings by Duration of Sighting, 1948 + 162 162
Table A98. Evaluation of Object Sightings by Duration of Sighting, 1949 Table A98. Evaluation of Object Sightings by Duration of Sighting, 1949 a . 4 162
1 |
Table A99. Evaluation of Object Sightings by Duration of Sighting, 1950 163
Table Al00. Evaluation of Object Sightings by Duration of Sightings, 1951. Table Al00. Evaluation of Object Sightings by Duration of Sightings, 1951 . 163
| |
Table Al0l. Evaluation of Object Sightings by Duration of Sighting, 1952 Table A101. Evaluation of Object Sightings by Duration of Sighting, 1952 O 164
Table A102. Evaluation of All Sightings for All Years by Duration of Sighting for Months Evaluation of All Sightings for All Years
of Year, Five Seconds or Less of Year, Five Seconds 165 — -
Table A103. Evaluation of All Sightings for All ration Months
of Year, Six to Ten Seconds 166
Table Al04. Evaluation of All Sightings for All Years Duration Sighting Months 0
of Year, Eleven to Thirty Seconds 167
Table Al05. Evaluation of All Sightings for All Years Duration Months
of Year, Thirty One to Sixty Seconds 168
Table Al06. Evaluation of All Sightings for All Years by Duration Months
of Year, Sixty One Seconds to Five Minu 169
Table Al07. Evaluation of All Sightings for All Years by Duration Months
of Year, Six to Thirty Minutes 170
Table Al08. Evaluation of All Sightings for All Years by Duration of Sighting for Months
of Year, Over Thirty Minutes 171
Table A109. Evaluation of All Sightings for All Years by Duration of Sighting for Months
of Year, Duration Not Stated 172
100

of Year, Thirty One to Sixty Seconds 176
Table All4, Evaluation of Unit Sightings for All Years by Duration ghting for Months
of Year, Sixty One Seconds 177
Table Al15. Evaluation of Unit Sightings for All Years Duration Month
of Year, Six to Thirty Minutes 178
Table All6. Evaluation of Unit Sightings for All Ye
of Year, Over Thirty Minutes 179
Table All7. Evaluation of Unit Sightings for All Months
of Year, Duration Not Stated 180
Table All8. Evaluation of Object Sightings for Duration
of Year, Five Seconds or Less of Year, Five Seconds or 181 181
Table Al19. Table All9. Evaluation of Object Sightings for Duration ghting Months
of Year, Six to Ten of Year, Six to Ten Seconds 182
- Table Al20. Evaluation of Object Sightings for Months onths
of Year, Eleven to Thirty Seconds Thirty Second 183
Table Al2l. Table Al21. Evaluation of Object Sightings for All by Duration Sighting for Months Months
of Year, Thirty One to Sixty Seconds 184 184
Table Al22. Table Al22. Evaluation of Object Sightings for All Years by Duration Evaluation of Object Sightings for All Years by
of Year, Sixty One Seconds to of Year, Sixty One Seconds Five Minutes 185 185
-
Table A123. Table Al23. I Evaluation of Object Sightings for All Years by Duration Evaluation of Object Sightings for All Yea Duration for Months Months
of Year, Six to Thirty Minutes of Year, Six to Thirty Minute 186
Table Al24. Evaluation of Object Sightings for All Duration Months
of Year, Over Thirty Minutes 187
0
Table A125. Evaluation of Object Sightings for for Months
of Year, Duration Not Stated 188
Table Al26. Evaluation of All Sightings fo liptical 189
Table A127. Evaluation of All Sightings for All Years by Shape of Object, Rocket and Aircraft 189
Table A128. Evaluation of All Sightings for All Years by Shape of Object, Meteor or Comet 190
Table A129. Evaluation of All Sightings for All Years by Shape of Object, enticular, Conical,
I or Teardrop . 190
Table Al30. Evaluation of All Sighting for All Year Flame 191
Table Al31. Evaluation of All Sightings for All Years by Shape of Object, Other Shapes 191
Table A132. Evaluation of All Sightings for All Years by Shape of Object, Shape Not Stated 192
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101

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-
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INDEX OF TABLES
(Continued)
I
Page
Table Al33. Evaluation of Unit Sightings for All Years Shape of Object, Elliptical . . 193
Table A134. Evaluation of Unit Sightings for All Years Shape of Object, Rocket and Aircraft 193 -
Table A135. Evaluation of Unit Sightings for All Years Shape of Object, Meteor or Comet 194
Table Al36. Evaluation of Unit Sightings for Shape of Object, Lenticular, -
Conical, or Teardrop . 194
Table A137. Evaluation of Unit Sightings for Al Shape of Object, Flame 195
1
Table Al38. Evaluation of Unit Sightings for All Years by Shape of Object, Other Shapes. 195
Table Al39. Evaluation of Unit Sightings for All Years by Shape of Object, Shape Not Stated 196
|
Table A140. Evaluation of Object Sightings for All Years by Shape of Object, Elliptical . . . 197
Table Al41. Evaluation of Object Sightings for All Years by Shape of Object, Rocket and Aircraft . 197
1
Table A142. Evaluation of Object Sightings for All Years by Meteor or Comet . 198
Evaluation of Object Sightings Years by Shape Object, Lenticular,
Conical, or Teardrop 198 •
Table A144. Table Al44. Evaluation of Object Sightings for All Years by Shape of Object, Flame Evaluation of Object Sighting hape of Object, Flame 199 199
Table A145. Table A145. Evaluation of Object Sightings for All Years by Shape of Object, Other Shapes . Evaluation of Object Sightings for All Years by Shape of Object, Other Shapes 199 1
Table A146. Table A146. Evaluation of Object Sightings for All Years by Shape Shape of Object, Shape Not Stated 200
Table A147. Evaluation of All Sightings for All Years by Reported Speeds of Objects, Stationary . Reported Speeds of Objects, Stationary 201
Table A148. Evaluation of All Sightings for All Years by Evaluation of All Sightings for All Years by Reported Reported Speeds of Objects, Less
Than One Hundred Miles per 201 201
Table Al49. Evaluation of All Sightings for All Years by Reported Table Al49. Evaluation of All Sightings for All Years by Report One
Hundred to Four Hundred Miles per Hour Hundred to Four Hundred Miles per Hour 202 202
Table Al50. Evaluation of All Sightings for All Years by Reported Table A150.I Evaluation of All Sightings for All Years by Reported Speeds Over
Four Hundred Miles per Hour
202
Table Al51. Evaluation of All Sightings for All Objects,
Meteor-Like Speeds 203
Table Al52. Evaluation of All Sightings for All Years Objects, 1
Speed Not Stated 203
Table A153. Evaluation of Unit Sightings Speed Stationary 204
Table A154. Evaluation of Unit Sightings for. Reported Speeds Les Than
One Hundred Miles pe
204
Table A155. Evaluation of Unit Sightings for Hundred
to Four Hundred Miles per Hou 205
Table A156. Evaluation of Unit Sightings for A Reported Over
Four Hundred Miles per Hou
205
Table A157. Evaluation of Unit Sightings for Al by Reported Speeds Obje c ts,
Meteor-Like Speeds 206
Table A158. Evaluation of Unit Sightings for All Years by Reported Speeds of Objects,
Speed Not Stated. 206
102

civilian observers directly to ATIC. Most of these direct communications 2
o1o
of the original data, and increased its subjectivity. This was intensified by
the recognized inability of the average individual to estimate speeds, dis-
tances, and siz
spite of these limitations, methods of statistical analysis such reports in
sufficiently large groups are valid. The danger lies in th ossibility of
3

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INDEX OF TABLES
(Continued)
Page
Table Al59. Evaluation of Object Sightings for All Years by Reported Speeds of Objects, Stationary . . 207
Table Al60. Evaluation of Object Sightings for All Lears Reported Speeds of Objects, Less
Than One Hundred Miles per He 207
Table Al61. Elevation of Object Sightings for All Years Repor One
Hundred to Four Hundred Mi 208
Table Al62. Evaluation of Object Sightings for All Yea Reported Speed
Four Hundred Miles per Hour 208
Table Al63. Evaluation of Object Sightings fo Spee bjects,
Meteor-Like Speeds 209
Table Al64. Evaluation of Object Sightings for Reported Speed
Speed Not Stated 209
Table A165. Evaluation of All Sightings for All Years by Light Brightness. 210
Table A166. Evaluation of Unit Sightings for All Years by Light Brightness 211
Table A167. Evaluation of Object Sightings for All Years by Light Brightness . 212
Table A168. Location of Observers During Sighting by Months for All Sightings, All Years 213
Table Al69. Location of Observers During Sighting by Months for All Sightings, 1947 Months for All Sightings, 1947 214 214
Table Al70. Location of Observers During Sighting by Months for All Sightings, 1948 215 215
Table Al71. Location of Observers During Sighting by Months for All Sightings, 1949 216 216
Table A172. Table A172. Location of Observers During Sighting by Months for All Sightings, 1950 217
Table Al73. Table Al73. Location of Observer During Sighting by Months for All Sightings, 1951. Location of Observer During Sighting by Months for All Sightings, 195l. 218
Table Al74. Location of Observers During Sighting by Months for All Sightings, 1952 Location of Observers During Sighting by Months for All Sightings, 1952 219 219
Table A175. Table Al75. Evaluation of All Sightings for All Years by Colors Reported Evaluation of All Sightings for All Years by Colors Duration Ouration
of Sighting, White or Glowing White Objects . of Sighting, White or Glowing White 220 220
Table Al76. Evaluation of All Sightings for All Years by Colors Reported for Duration Table Al76. Evaluation of All Sightings for All Years Reported
of Sighting, Metallic 220
Table Al77. Evaluation of All Sightings for All Yea by Color Reported Duration
0 of Sighting, Object Color Not Stated 221
Table Al78. Evaluation of All Sightings for All Years by Colors
of Sighting, Orange or Glowing Orar 221
Table Al79. Evaluation of All Sightings for All Years by Colors Reported Duration
of Sighting, 222
Table Al80. Evaluation of All Sightings for All Years by Colors Reported for Duration
of Sighting, Green or Glowing Green Objects 222
Table Al81. Evaluation of All Sightings for All Color orted Duration
223
Table Al82. Evaluation of All Sightings for All Years by Colors Reported for Duration
of Sighting, Objects of Other Colo 223
Table Al83. Evaluation of Unit Sightings for All Years by Colors Reported for Duration
of Sighting, White or Glowing White Objects. 224
I
103

I
I
INDEX OF TABLES
(Continued)
-
Page
Table Al84. Evaluation of Unit Sightings for All Years by Colors Reported for Duration
of Sighting, Metallic Objects . 224 -
Table Al85. Evaluation of Unit Sightings for All Years by Reported for Duration
of Sighting, Object Color Not Stated 225
Table Al86. Evaluation of Unit Sightings for All Years by Colors Duration -
Reported
of Sighting, Orange or Glowing Orange Objects 225
Table A187. Evaluation of Unit Sightings for All Years by Colors for Duration
of Sighting, Red or Glowing Red Objects -
226
Table A188. Evaluation of Unit Sightings for All Years Colo Reported for Duration
of Sighting, Green or Glowing Green Objects
226 -
Table Al89. Evaluation of Unit Sightings for All Years Reported for Duration
of Sighting, Yellow Glowing Yellow O
227
Table Al90. Evaluation of Unit Sightings for All Ye orted for -
of Sighting, Objects
227
Table Al9l. Evaluation of Object Sightings for All Year Reported Duration
of Sighting, White or Glowing 228
Table A192. Table A192. Evaluation of Object Sightings for All Evaluation of Object Sightings for All Year Colors Reported Duration
of Sighting, Metallic Objects 228 228
Table Al93. Evaluation of Object Sightings for All Years Evaluation of Object Sightings for All by Colors 100 Reported for Duration Reported for Duration
of Sighting, Object Color Not Stated
229
Table A194. Evaluation of Object Sightings for All Years Evaluation of Object Sightings for All Years by Colors by Colors Reported Duration
of Sighting, Orange or Glowing Orange Ob of Sighting, Orange or Glowing Orange Ob cts 229
Table A195.I Table A195. Evaluation of Object Sightings for All Years Evaluation of Object Sightings for All Years by Colors Reported
of Sighting, Red or Glowing Red Objects .
230
Table Al96. Table Al96. Evaluation of Object Sightings for All Years by Colors Evaluation of Object Sightings for All Years by Colors Reported for ation
of Sighting, Green or Glowing Green Objects. 230
230
Table A197. Evaluation of Object Sightings for All Years by Colors Table Al97. Evaluation of Object Sightings for All Years by Reported for Duration for Duration
of Sighting, Yellow or Glowing Yellow Obje
231
Table Al98. Evaluation of Object Sightings for All Years by Colors Reported
of Sighting, Objects of Other Colors 231
0
Table Al99. Evaluation of All Sightings for All Years by Number s per Sighting
for Duration of Sighting, One Object
232
Table A200. Evaluation of All Sightings for Ali Years by Number per Sighting
for Duration of Sighting, Two Objects
232
Table A201. Evaluation of All Sightings for All Years by Numbe
for Duration of Sighting, Three to Ten
233
Table A202. Evaluation of All Sightings for All Years by Number
for Duration of Sighting, Eleven ore
233
Table A203. Evaluation of All Sightings for All Years by Number
for Duration of Sighting, Number of Objects Not Stated
234
Table A204. Evaluation of Unit Sightings for All Years by Number of Sighting
for Duration of Sighting, One Object
235
Table A205. Evaluation of Unit Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, Two Objects . 235
104

INDEX OF TABLES
(Continued)
Page
Table A206. Evaluation of Unit Sightings for All Years by Number of jects per Sighting
for Duration of Sighting, Three to Te 236
Table A207. Evaluation of Unit Sightings for All Years by Number Sighting
for Duration of Sighting 236
Table A208. Evaluation of Unit Sightings for All
for Duration of Sighting, Number 237
Table A209. Evaluation of Object Sightings for All Sighting
for Duration of Sighting, One Obje 238
Table e A210. Evaluation of Object Sightings for All Y
for Duration of Sighting, 238
Table A2l1. Evaluation of Object Sightings for All Yea
for Duration of Sighting Thi ree 239
Table A212. Evaluation of Object Sightings for
0 for Duration of Sighting, Eleven More Obje 239
Table A213. Evaluation of Object Sightings for All Years by Number Sighting
for Duration of Sighting, Numbe bie 240 240
Table A214. Table A214. I Evaluation of All Sightings for All Evaluation of All Sightings for All Yea rs by Geographic Location eographic Location 241
Table A215, Table A215. Evaluation of Unit Sightings for All Years by Geographic Location. Evaluation of Unit Sightings for All Years eographic Location 241
Table A216. Evaluation of Object Sightings for All Years by Geographic Location . Evaluation of Object Sightings for All Years by Geographic Location 242
Table A217. Evaluation of All Sightings for All Years by North American Location. Evaluation of All Sightings for All Years by North American Location. 243 243
Table A218. Evaluation of Unit Sightings for All Years by North American Location 243
Table A219. Evaluation of Object Sightings for All Years by North American Location . 244
Table A220. Evaluation of All Sightings for All Years by United States Regional Location 245
Table A221. Table A221. Evaluation of Unit Sightings for All Years by United States Regional Location Evaluation of Unit Sightings for All Years by United States Regional Location . 246
Table A222. Evaluation of Object Sightings for All Years by United States Regional Location 247
0 Table A223. Evaluation of All Sightings in the Strategic Areas of the Central East Region 248
Table A224. Evaluation of All Sightings in the Strategic Areas of the Central Midwest Region 248
Table A225. Evaluation of All Sightings in the Strategic Areas of the Central Farwest Region 248
Table A226. Evaluation of All Sightings in the Strategic Areas of the South Midwest Region . . 249
Table A227. Evaluation of All Sightings in the Strategic Areas of the South West Region . 249
Table A228. Evaluation of All Sightings in the Strategic Areas of the South Farwest Region i. . 249
Table A229. Evaluation of Unit Sightings in the Strategic Areas of the Central East Region. 250
Table A230. Evaluation of Unit Sightings in the Strategic Areas of the Central Midwest Region . 250
Table A23l. Evaluation of Unit Sightings in the Strategic Areas of the Central Farwest Region. 250
Table A232. Evaluation of Unit Sightings in the Strategic Areas of the South Midwest Region 251
105

-
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INDEX OF TABLES
(Continued) -
Page
Table A233. Evaluation of Unit Sightings in the Strategic Areas of the South West Region 251 -
Table A234. Evaluation of Unit Sightings in the Strategic Areas of the South Farwest Region 251
Table A235. Evaluation of Object Sightings in the Strategic Areas of the Central East Region . 252
Table A236, Evaluation of Object Sightings in the Strategic Areas of the Central Midwest Region 252
Table A237. Evaluation of Object Sightings in the Strategic Areas of the Central Farwest Region 252 -
Table A238. Evaluation of Object Sightings in the Strategic Areas of the South Midwest Region . 253
Table A239. Evaluation of Object Sightings in the Strategic Areas of the South West Region . . 253 1
Table A240. Evaluation of Object Sightings in the Strategic Areas of the South Farwest Region. . 253
1
1 1
1
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106

0 0 20 00 00
6-insuffic. into. 298 0 4.3004510n12100121100 43 c0 03 96 0 36 41 00 .'
7-Psychological 38 10 48 12 0.3 14 5 2 5 26 1.7 <3 1 0 1 05 0024 0 3 07 0n e
8-Unknown 489 06892150021528 0=825900230r 0 27 152 a11956 0 56 192 00102
9-0ther 112 35147 35 1.1 46 1 171450.0 145 4 8 12 10 =0 55 11 0 11 2.8 00 :8
Total 2300 9018207928/10105121759810.2 100 /2481-056.515951231 16c395585<1.5100
1950 1951 1950
- Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Per Cent Number
Doubthul Certain Doubtful Total Total Doubtful Certan Doubitul Total Certain Dau biful
0-Balloon 33 20 108 2.3 13.1 10 4 14 6.2 2.5 87 187 144 331 9.3 7.1
. 1-Astronomical 49 25 74 16.0 82 24.2 17 42 15.6 10.6 26.2 260 120 380 12.9 60 189
2-Aircraft 30 15 54 12.7 49 17.6 16 8 24 100 50 150 250 232 482 12.4 11.5 239
3-Light Phenom. 0 00 0.0 3 1.3 07 2.0 26 17 43 13 08 21
4-Birds 0 2 0.0 0.0.00 1 / 0.0 07 0.7 13 5 18 06 03 05
5-Clouds, Dust, etc. 0 4 00.0.0 00 0 00 0.0 12 13 25 06 06.12
6-Insuffic. Info. 0 49 16.0 00 16d 0 14 87 00 871660.166 82 0053
7-Psychological 4 0 1.3 0.0 1.3 / 2 0.7 0.7 1.4 26 7 33 1.3 03 6
8-Unknown 71 71 232 0.0 23252 0 52 325 00 32.5455 0 455 22600226
9-0ther 7 1 14 232.3 4.6 8 0 8 5.0 0.0 50 65 20 85 32 10 5.2
Total 252 5430582.317.700128 32 160800 200100.14605582018724276100 2525730:82.317.700128 3216080020010014605582018724276100
TABLEA2 TABLEA2 EVALUATION OF VNIT SIGHTINGS BY YEARS
ALL YEARS 1947 1948 10=0
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubthu Doubthul Total Doubtful Doubthul Doubitful Total Certan Certan Doulthul Total Doubthul Total Certain Doaubiul Tota Dou biful Tot
0-Balloon 228 151 151 379 8.9 59 59 148 0 7 7.2 0.0 0.0 12 72 14 14 10 24 92 65 157 157 11 11 3 14 47 13 18 60
1-Astronomical 3x3 756 756 639 15.0 10.0 250 19 8 8 27 196 82 27.8 28 27 55 183 17.6 7.6 359 34 34 80 80 114 114 19.4 338 482 338 482
2-Aircraft 2-Aircraft 272 292 235 527 1141.92 11.4 92 20.6 20.4 1 2 4 21 2.1 2.1 42 42 15 45 4 19 98 46 26 3.1 12.4 13 18 6 1230 13 16 51127
3-Light Phenom. 32 21 53 13 08 2 0 2 2.1 00 3 5 13 20 33 0 00.00.00
4-Birds 13 i0 23 0.5 0.4 0.9 0 0.0 0.0 00 2 3 5 13 20 0824 2
5-Clouds, Dust, etc. 3 7 10 a1 0.3 040 0 00 00 0.0 0 00 000 10.0.0.02
6-insuffic. info. 0 261 ,0200 124 0.0 12417 0.17 111 00 111 33 0 33 140 60.40
7-Psychological 36 9 45 14.0.4 18 3 2 5 31 2.1 52 1 0 1 07 00 02 3 0 3 13 00 13
8-Unknown 497 0497 1950019524 024 24.1 0.0 24.7 16 016 105·00 105 33 0 33 400.040
9-0ther 92 28120 36.1.1 4.716 0 16 16.5 0.0 145 4 1 1124 44 72 6 06 250.0 25
Total 1837 717 255471.9 281 100. 85 12 97 8.6 12.4 100 49 54 153 647 353 10 140 96 236514 406 100
-
1950 1951
Number Per Cent Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Certan Doub tful Total Certain Doubtful Certain Doubtul Tota
G-Balloon 22 5 27 10.5 2.4 12 9 3 12 6 2.2 165 130 295 96 75 17
1-Astronomical 42 18 60 20.1 8.6 287 21 14 35 15.3 102 25.5 239 109 348 139 6.3 20.2
2-Aircraft 30 11 41 143 5.3 146 16 8 24 11.7 5.8 175 211 198 404 12.3 11.5 135
3-Light Phenom. 0 0 0.0 00 2 3 15 07 22 26 17 43 15 10 2.5
4-Birds 0 0 0.2.000 / 1 0.0 0707 4 5 14 0.5 0.2 08
5-Clouds, Dust, efc. 0 0.0 00.000 0 20 0.0001 7 10 02 04 06
6 Insuffic info. 26 0 124 0013414 0 14 [0.2 00102/59 0 159 92 00 92
7-Psychological 2 0 1.0 -0.0 1.01 / 2 07 07 1.4266 32 15 0.3 18
8-Unknown 42 0 42 201 0.0 201 38 38 217 00 217844 0 344 200 00 20.0
9-0ther 6 5 11 29 24 5.3 8 0 8 58 2.0 58 52 16 68 30 0.9 39
Total 170 39 2098/4 186100109 28137 79.620.41.01234 488 1722917 283100
107

-
1
-
TABLE AS EIALUATIONOF DBJECT SIGHTINGS BY YEARS
ALL YEARS 1947 194.8 1942
Per Cent Number Number Per Cent -
Evaluation Doubtful Total Certain Certain Doubtful Total Certan Tota
0-Balloon 207 132 339 94 60 7 0 7 8.9 0.0 89 12 10 22 84 10 154 11 2 13 59 1.1 1.0
1-Astronomical 274 205 471 12.5 9.3 218 8 16 101 202 25 23 48 17.5 16.1 33.6 29 55 84 15.6 295 451
2-Aircraft 265 209 414 12.0 95 21.5 2 2.5 25 50 15 4 19 105 28 133 18 12 30 97 6.4 16! -
3-Light Phenom. so 18 48 1.4 0.8 2.2 2 0 25 00 2.5 2 3 5 14 21 35 0 0.0 0.000
4-Birds 12 1022 0.5 05 10 0 00 0.0 2 3 5 1.4 21 35 3 11 0.516
S-Clouds, Dust, etc. 3 7 10 0.1 0.3 24 0.0 O 00 00 0 00.00
6-Insuffic. Into. 240 024010.9 00 10.9 12 12 15.2 0.0 152 17 17 41.9 00 0 25 134 00134 -
7-Psychological 35 9 44 16 0.4 2.0 3 2 5 38 2.5 63 01 070.007 3 0 16 00 16
8-Unkno wn 434 04341970019722 0 22 21.8 0.021815 015 1050010522 0 22 118 00 118
9-0ther 85 24 109 39 11 5.0 11 0 11 139 0.0 13.9 4 7 11 2.8 4.9 27 6 0 4 32 0.0 32
1
Total 1585614219972.127.9100.67 127984.8152100.9350 14365035.04001167018662437.6 100.
1
1950 1951 1952
Per Cent Number Per Cent Number
Evaluation Doubthul Doubtful Certain Total Certan Doubtful Tot.i
0-Balloon 21 4 25 12.4 2.4 14.8 8 3 11/ 66 2.5 9.1 148 113 261 99 7.5 114 •I
1-Astronomical 25 14 39 14.8 8.3 23.1 16 14 30 13.2 11.6 24.8 171 91 242 11.4 6.1 175
2-Aircraft 2-Aircraft 22 22 931/3.05.3 18315 9 31 13.0 5.3 18.3 15 6 2124 21 124 5.0 5.0 17.4193176 36912911.7 246 17.4 193 176 369 12.9 11.7 24.6
3-Light Phenom. 0 0 0.0 0.0 1 2 0.8 0.8 1.6 1.6 25 14 39 1.7 0.9 2.6 39 17 0.9 2.6
4-Birds 0.0 0 / 1 1 00 00 08 8 8 5 13 050.3 08 13 05 0.3 08 -
5-Clouds, Dust, etc. 0 0 00 0.00 0.000 0.0 0.0 37 10 0.20.5 0.7 3 7 10 0.2.0.5 0.7
6-Insuffic. Info. 24 024 14.2 14.2 14.214 14 0 14 11.6 1.6 0.0 0.0 11.6 148 0148 99 0.0 9.9
7-Psychological 2 0 12 0.012 0.0 12 / 1 / 2 0.8 1.6 1.6 25 6 3/ 1.7 04 2.1 25 6 31 1.7 0.4 2.1
8-Unknown 39 23.0 0.0230 33 0 33 27.3 0.0 303 030320.20020.2 303 030320.20.0 20.2
9-0ther 9-0ther 6 3 9 3 93.5 3.5 1.8 5.3 7 0 7 58 0.0 5.8 51 14 65 3.4 09 4.3
Total Total 1393016982.3177100.952612178521.5100.4075426150171.6284100. 139 3016982.3177 100.9526 12178521.5100. 4075 426 1501 71.6 284 100.
108

TABLE A4 EVALVATION ALL SIGHTINGS 8y MONIH YEaR  ALL YEARS
JANVARY FEORVARY MARCH. APRIL
Number Number Per Cent
Evaluation Certan Certain Doubt'ul Total Doubtful Total Certain Doubthul Totw
G-Balloon 3 6 2.2 2.2 9 O 9 9.7 0.0 9.7 16 4 20 9.6 2.4 12.0 7 10 3 5 1.5 5.0
1-Astronomical 29 46 75 21.3 33 8 55.1 17 16 18.3 17.2 355 21 20 41 12.7 12.0 24.7 52 9 61 26 4.5 305
2-Aircraft 6 3 9 4.4 2.2 66 5 14 9.7 54 15.1 23 7 30 13.9 4.2 18.1 28 8 36 14 0 4.0 18.0
3-Light Phenom. 0 O 0.0 0.0 0.0 1 I 05 0.5
4-Birds 0 0.0 0.d 0.0 0 5 3.0 3.0 4 1 5 20 0.5 2.5
5-Clouds, Dust, etc. 0 0.0 1 , 0.0 0.6 0.6 0 00
6-Insuffic. info. 8 5.9 5.9 13 14.9 140 0 22 13.3 0.0 26 2 6 130 0.0 13.0
7-Psychological 1.5 0 0.0 00 0 2 10 1.0
8-Unikcnown 26 19.5 16 0.0 17.2 0 29 17.5 0.0 57 28.5 28.5
9-0ther 9 / 10 C.6 0.7 7.3 0 8 8.6 0.0 8.6 1 17 18 0.6 10.2 10.8 2 0 10 0.0 1.0
Total 83 53 136 61.0 39.0 72 93 77.4 226 117 49 166 70.5 295 100. 179 21 200 895 10.5 100.
MAr JUNE Jur AUGUST
Number Per Cent Number Per Cent Num ber
Evaluation Doubtful Total Doubthui Total Certain Doubtful Doubthul Certain Dou btful
0-Balloon 24 5 29 12.4 2.6 15.0 36 6 42 15.8 18.4 100 55 155 108 5. 9 16.7 39 44 83 7.5 8 159
1-Astronomical 28 10 38 14.4 5.2 19.6 29 23 52 12.7 10.1 22.8 116 55 171 12.5 5.9 18.4 53 70 123 18.2 134 236
2-Aircraft 25 15 40 12.9 7.7 20.6 30 13 43 13.2 5.7 18.9 133 98 231 14.3 10.5 248 52 55 107 10.0 10.6
3-Light Phenom. 3-Light Phenom. 3 3 C C 1.5 1.5 3.0 3.0 4 04 1.3 1.7 1.7 14 14 4 18 18 0.4 0.4 19 19 7 7 14 1.3 2.6
4-Birds 0 2 2 1.0 0 :0 0.0 0.0 C.0 4 3 7 0.4 0.3 0.7 0. 7
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 8 4.1 0.0 0 0.0 2.0 0.0 4 - 5 5 0.4 0.1 0 5 05 1 06 04 0.2 02 0 2
6-Insuffic. Info. 6-Insuffic. Info. 22 0 22 11.3 11.3 25 25 11.0 11.0 98 98 88 95 95 0.0 9.5 0 45 86 86
7-Psychological 7-Psychological 0 0 0.0 6 C 6 26 0.0 2.6 9 19 1.0 2.0 10 1 1 11 1.9 9 0 2 2.1
8-Unknown 0 36 18.6 0.0 18.6 47 206 0.0 20.6 0 195 195 210 0.0 21.0 119 119 228 228 22.8 22.8
- 9-0ther 9 4 13 4.6 4.6 2.1 6.7 8 9 35 0.4 3.9 40 / 41 4.3 0.1 4.4 11 7 18 2.1 1.3 3.4 3.4
Total 155 39 194 79.9 20.1 100 182 46 228 228 79.8 20.2 20.2 100. 703 703 226 929 75.7 24.3 Io. IO. 336 185 521 645 64 5 30.5
SEPTEMBER OcroBER NoveMBeR NoveMBeR DECEMBOR DECEMBPR
Number Per Cent Number Num ber
Evaluation Doubtful Total Certain Doubtful Total Doubtful Doubttul Total Doubthul Totan Certan Dau btful Dou bt ful Tota Tota
0-Balloon 0-Balloon 6 14 20 2.9 6.7 9.6 21 2/ 37 83 10.9 19.2 5 18 23 3.0 11.0 14.0 9 7 16 5.4 4.2
1-Astronomical 31 11 42 14.8 5.2 20.0 40 21 61 20.8 10.9 31.7 28 57 17.1 17.7 34.8 32 31 63 190 18.5 375
2-Aircraft 37 51 6.7 17.6 24.3 17 28 5.7 8.9 14.6 11 16 27 9.8 16.5 12 14 26 7.1 8.3 15.4
3-Light Phenom. 2 3 0.5 1.0 1.5 5 0.5 2/ 2.6 4 1.8 0.6 2.4 1 0 06 0.0 0.6
4-Birds - 2. 3 0.5 1.0 1.5 5 2 7 2.6 36 0.0 0 0 0.0
5-Clouds, Dust, etc. 1 - 0.5 0 / 8 0.0 4.9 0
6-Insuffic. Info. 0 20 9.5 0.0 12 12 0.0 6.2 8 4.9 49 0 9 5.4 5.4
7-Psychological 0 3 0.0 1.4 1 0.5 0.0 0.5 / 1 0.6 4 0 4 2.4 2.4
8-Unkno wn 0 56 267 0.0 26.7 0 36 18.7 0.0 18.7 32 195 19.5 40 238 23.8
9-0ther 8 3 11 3.8 1.4 5.2 3 1.6 0.5 2.1 0 4 0.0 2.4 9 5.4
Total 140 7021066.7 33.3 125 67 192 65.1 34.9 100. 92 72 164 56.1 43.9 101 116 52 168 69.0 3.0 100
109

TABLE R5 EVALVATION OF SIGHTINGS By MONTH OF YERR 1947
I
JANUARY FEBRUARY MACCH APei
Number Per Cent Per Cent Number Per Cent
Evaluation Doubtful Total Certain Doubthuil Total Doubthul Doubtful Total Certan Doulithul Total Certain Dou bt ful Tota
0-Balloon I
1-Astronom.cal
2-Aircraft
3-Light Phenom. DATA DATA
4-Birds I
5-Clouds, Dustl, etc.
6-Insuffic. Info.
7-Psychological
8-Unknown -
9-0ther
Total
--
MAY JUNE Jurr AUGUST
Number Number Per Cent
Evaluation Certain Doubtful Total Doubtful Doubthul Doubttul Total Dou btful
0-Balloon 1 0 1 7.7 77 6 10.9 0.0 0.0
1-Astronomical 0 / 1 00 7.7 7.7 5 3 4 9.1 S.S 14.6 6 / 7 37.5 6.3 438
2-Aircraft 15.0 0 0.0 •|
15.9 2 Z 3.6 0 0.0
3-Light Phenom. - 0 1 1.8 0.0 1.8 0 1.0 0.0
4-Birds 00 0 0.0 0 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0 0 00 0.00.0 0.0 e 0.0
6-Insuffic. Info. 6-Insuffic. info. 3 0 3 23.1 23.1 0.0 00 8 Y 8 14.5 0.014.5 145 0 2 12.5 1
7-Psychological 1 1 7.7 0.0 0.0 27 2 2 3.6 3.6 0 00 0.0
8-Unknown 4 30.8 0.0 30.8 12 215 215 0.0 21.8 24.8 0 7 113.8 43.8
9-0ther 1 0 1 7.7 0.0 0 16 29.1 0.029.1
Total 12 / 13 92.3 7.7 100. 48 7 55 87.3 12.7100.15 116 116 93.7 6.3
SEPteMBER SEPtEMBER OCTOBER NOVEMBER DECEMBER DEceMBeR
Number Per Cent Number Per Cent
Evaluation Doubthul Doubtful Total Certain Dou btful Dou biful
0-Balloon 0.0 0.0 0 00 0.0 0 o0 00
1-Astronomical 1-Astronomical - 0 1 /67 /67 0.0 16.7 14 14 2 16 73.7 73.7 10.5 84.2 / 2 33.3 33.366.6 66.6 5 0 5 100.0 1000 00 100.0
2-Aircraft 00 A 0 0.0 0 0.0
3-Light Phenom. O 0 00 0 / 0 1 33.3 0.0
4-Birds 0 0.0 0 00 00 0.0 e
5-Clouds, Dust, etc. 0 0.0 2.0 0.0 o.0 0 00 ao 20 1
6-insuffic. Into. 1 0 / 16.7 0.0 167 0 0.0 e 20
7-Psychological 1 0 16.7 16.Z / 1 5.3 0.0 00 Q0
8-Unkno wn 3 3 50.0 0.050.0 2 105 10.5 0 0.0 0 ae 20
9-0ther 200.0000 0 0 0.0 2.0 ae 0.0
Total 6 0 6 V00.0 0.0V00.172 19 89.5 10.5/0.2 / 3 66.7 33.3 5 0 5 1000 0.0 100.
110

-
TABLE A6 EVALVATION OFALL SIGHTINGS By MONTH OE YEAR 1948
JANUARY EBRUARY MARCH APAIL
Number Per Cent
Evaluation Doubthul Totai Certain Doubtful Total Doubtful Total Certain Doubtful Totw
G-Balloon 0 0 0.0 0.0 2 2 11.1
1-Astronomical 10 3 13 625 18.7 81.2 7 9 728 100.0 2 22.2 0.0 0 8 & 4H.5 445
2-Aircraft 0 0 0.0 00 3 3 16.7 167
3-Light Phenom. 0 0 O a 00 o.0 0.0
4-Birds 0 0 0.0 0.0 1 5.6 5.6
5-Clouds, Dust, etc. 0 0 0.0 0.0 00 a0 ae
6-Insuffic. into. 2 2 12.5 0 0.0 2 22.2 1 5.6 0.0 5.6
7-Psychological 0.0 0 2.0 D 0 0.0
8-Unkno wn 0 0 0.0 O 0.0 00 1 / 11.1 3 3 16.7 0.016.7
9-0ther 1 / 6.2 0 0.0 4 7 0.0 44.5 445 0 al 0.00.0
Total 12 4 16 75.025.0 100.7 2 9 275 22.2100.5 49 555 445 100. 10 8 1$ 55.6 44.4100.
MAY JUNE JuLr AUGUST
Number Number Per Cent
Evaluation Doubthul Total Certain Doubtful Certan Doubthul Total Dou btful
O-Balloon 0 3 50.0 4 1 5 10.3 2.6 12.9 2 0.0 18.2
1-Astronomical / 2 1.1 9.1 18.2 0 0 0.0 4 9 3 10.3 23.1 33.4 2 4 18.2 18.2 26.4
2-Aircraft 2-Aircrant / 9.1 0.0 0 U 0.0 0.0 5 2 7 12.8 5.1 3,1 179 1 9,9/28.2 9! 91 18.2
3-Light Phenom. 0 0.0 27.3 27.3 3 50.0 50.0 , / 2,6 0.0 2.6 0 0.6
4-Birds 0 / 0.0 9.1 1 2.6 2.6 O 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0.0 0 0.0 0 C.0 C.e
6-Insuffic. Info. 3 3 22.3 27.3 0 0.0 0.0 0.2 / / 1 9.1 9.1
7-Psychological 0 0 0 0.0 0.0 00 0.0
&-Unknown , 0 1 1 9.1 0.0 2.1 0 00 11 1/ 28.2 28.2 0.00.0
9-0ther 9-0ther 0.0 0 0.0 1 0 / 2.6 2.6 022 022 a0 90 18.2 18.2
Total Total 65 6 511 11 54.6 45.4 546 45.4 100. 3 6 5a0 60.0 100.26 13 13 39 66.7 33.3 100.4 7 11 36.463.6100. 66.7 33.3100.4 711 36.463.6100.
SEPTEMBER OCTOBER Oc TOBER NOVEMBER NOVEMBER ECEMBER
Per Cent Number Per Cent
Evaluation Doubthul Certain Doubtful Total Certan Doubtful Total Dau biful Tota Tota
0-Balloon 0-Balloon 0 3 3 0.0 00 37.5 37 37.5 27 5 9 14 144 16.7 16.7 30.0 30.0 46.7 46.7 / 5 6 6 5,0 5.0 26.0 26.0 30.0 20.0 7 0 2 7.1 7.1 0.0 7.1 21
1-Astronomical 0 1 e.0 12.5 12.5 3 4 3.3 10.0 13.3 7 1 8 35.0 5.0 480 2 9 1/ 71 32.1 392
2-Aircraft / 2 12.5 25.0 0 / 3.3 3.3 4 20.0 0 1 0.0 3.6 3.
3-Light Phenom. 0 0.0 0.0 / 1 3.3 3.3 2.0 0 e.0
4-Birds 0 0.0 / 2 3.3 66 0 00 0.4
5-Clouds, Dust, etc. 0 0 0.0 0.0
6-Insuffic. Info. 0 0.0 6 20.0 200 1 0 / 5.0 00 3 60 10.7
7-Psychological , 1 12.5 0.0 0 0 2.0 0.0 0 a.5
8-Unknown 0 0 0.0 0,0 0 2 6.7 9 32.1
9-0ther 0 K 1 0.012.512.500 0 0.0 / 5.0 0.0 2 7.1 Ce 7.1
Total 2 6 8 25.075.0100. 17 13 30 56.743.3 100 14 6 20 70.0 30.0100.180 2864.335.7 100.
111

-
TABLE A7 EVALVATON OF ALL SIGHTINGS By MONTH OF YEAR
-
JANUARY FEBRVARY MARCH APRIL
Number Per Cent Number Number
Evaluation Certain Doubtful Doubtful Totai Certan Certain Daubtful Total Tota
0-Balloon e 1.7 4 222 22.2 0 0.0 , 0 1 2.1 0.0 2.
1-Astronomical 6 30 86 10.2 50.8 61.0 3 7 10 16.7 38.955.6 9 19 28 17.3 36.6 529 30 31 63.8 2.1 65.9
2-Aircraft 4 1 5 6.8 1.7 9.5 0 1 5.6 8 8 15.4 0.0 15.4 3 0 3 6.4 0.0 6.4
3-Light Phenom, 0.0 0.0 0 00 1.0 0 00 0.0
4-Birds 0 0.0 0.0 H 4 2.7 77 0 0.0 00 -
5-Clouds, Dust, etc. 0 o 0.0 0 0.0
6-Insuffic. info. 0 0 0.0 o 1 5.6 0.0 5.6 6 6 11.6 11.6 5 10.6 10.6
7-Psychological 0 O 0.0 0 0 0.0 0.8
8-Unknown 0 12 203 0.0 20.3 1 1 5.6 0.0 5.6 6 0 6 11.6 11.6 0 7 14.9 14,9
9-Other 5 5 8.5 0.0 8.5 1 5.6 - 0 0 0.0
Total 27 32 59 45.854.2100. 11 7 18 6.1 38.9100. 33 19 52 63.4 36.6 100. 461 47 97.9 2.1 100. 1
MAY JUNE JULY AUGUST 1
Number Number Per Cent
Evaluation Certain Certain Doubtful Total Doubthul Dou btful
0-Balloon 4 1 5 8.9 2.2 11 - 4.0 / 50 5.0 0 0.0 0.0
1-Astronomical 7 14 20.0 11.1 31.1 5 10 200 20.0 40.0 0 7 0.0 35.0 35 36 1.9 67.3 69.2 •|
2-Aircraft 6 3 9 13.0 6.7 200 2 4.0 40 8.0 0 5 5 0.0 25,0 25.0 1 10 1/ 1.9 19.2 21.1
3-Light Phenom. 3-Lignt Phenom. 0 U 0 0 0.0 2.0 0.01 0.0 O O 00 0.0 8O RO
4-Birds 0 0.0 0.0 1 5,0 5.0 0 2.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0.0 D 0.0 0 0.0 o a.0
6-Insuffic. Info. // 0 0 11 24.4 24.4 0.024.4 D 2 8.0 0 3 3 15.0 0.0 0.0 15,0 2 3.Y 3.9 3.8
7-Psychological 0 0 0.0 1 0 / 4.0 4,0 0.0 2.0 2 2 2 3.8 ao ao 3.8
8-Unknown 8-Unknown 6 6 13.3 20 13.3 20 13.3 8 8 0 8 32.0 32.0 0 2 2 10.0 0.0 10.0 1 / 1.9 1.9
9-0ther 0.00.0.0.010 0.00.00.010 4.0 / 1 5.0 0.0 0 0.0
Total 36 9 4580,0200100,196 4580.020.0100.196 2576.024.01007 25 76.0 24.0 1007 13 13 20 35.0 65.0 100,7 45 100, 7 45 52 13.5 86.5100. 13.5 86.5100
SEPTEMBER OCTORER OCTORER NOVEMBER DEceMBER DECEMBER
Number Number Per Cent Per Cent
Evaluation Certain Doubtful Total Doubtful Certan Total Certain Dou bi ful Dou btful Tota
0-Balloon 1 - 0 1 33.3 33.3 0 0.0 3 0.0 8.8 4 4 14.5 14.5 a.0 G.0 14.8
1-Astronomical 0 ^ 0.0 0.0 0.0 2 4 6 15.4 30.8 46.2 7 14 21 20.6 41.2 619 5 7.4 18.5 25.9
2-Aircraft 0 0 0.0 00 1 2 2.7 7.7 15.4 5 147 14,7 6 6 22.2 0.0 222
3-Light Phenom. e.0 0.0 0 0 0.0 C 2.0
4-Birds 0 0.0 ρ 0.0 0 08 0 0.0 I
5-Clouds, Dust, etc. 0.0 0 0 a0 0 e.0 ec 0.0
6-Insuffic. info. 0 2 667 0.0 667 2 0 15.4 15.4 / 0 2.9 1 1 3.7 0.0
7-Psychological 0 0.0 01 0.0 0 0
8-Unknown 0 0 0 2.0 0.0 3 3 23.1 4 11.8 11.8 6 22.2 00
9-0ther 0.0 0.0 0 0 3 3 1.1 00·111
Total 3 0 3 100.0 0.0 100.851361.538.5100. 12 22 344 35.364.7 100. 22 5 2751.5 19.5 100.
112

eque
appraisal.
The plan for reduction of the data to usable form consisted of a pro-
gram of development mprising four major steps: (l) a systematic listing
of the factors
attempts to fix responsibi the quality of the reports of
sightings.T to provide standardization for the
(1) A modified Air Force Form 112 lists pertinent questions to be answered in regard to an unidentified-object
sighting.
(2) Air Force Letter 200-5 places responsibility with the Air Force for the investigation, reporting, and
analysis of unidentified aerial objects. This letter is dated 29 April 1952.
4

-
TABLE A8 EVALUATION OF ALL SIGHTINGS BYMONTH CE YERR 1950
JANYARY FEBRUARY MARCH APR1L
Number Per Cant Number Per Cent Number Per Cent
Evaluation Certan Doubtful Total Certain Doubtful Certain Total Certan Doubthul Doubtful Total Certain Totd
G-Ballnon 0 0.0 0.0 3 9.1 0.0 9.1 13 16 N8.1 42 223 a 1 3.4 34
1-Astronomical 8 5 13 42.1 263 68.4 3 4 7 9.1 12.1 21.2 ? 0 8 0.0 11.1 4 13.8 0.0 13.9
2-Aircraft 2 10.5 0 6 18.2 0.0 182 12 4 16 16.7 5.6 223 0 20.7 0.020.7
3-Light Phenom. 0 0.0 0.0 0 o 0 00 0.0
4-Birds 0 0 0.0 O.D 0.0 O a0 0 d 0.0 00
5-Clouds, Dust, etc. 0 0 0.0 0.0 a o a0 00 0D 0.0 0
5insuffic info. 1 6 - 5.3 0.0 5.3 11 o 11 33.3 O.D 33.3 13 B1 0.0 18.1 8 0 ? 276 0027.6
7-Psychological 0 0 0.0 0.D O 0.0 d0 1 0 1 3.4 a0 34
8-Unkno wn 2 0 10.5 0.0 10.5 3 9.1 0.D 15 O 20.8 20.9 0 9 31.0 0.031.0
9-0ther 1 0 - 5.3 0.0 3 o 3 9.11 9.1 4 00 5.6 0 0 0.0 0.0
Total 14 5 19 73.7 26.3100. 29 4 3.3 87.9 12.1 160. 61 11 72 84.7 15.3 100. 29 0 100.0 0.0400.
MAy JUNE Juey AUGUST
Number Per Cent Number Per Cent Num ber Per Cent
Evaluation Certain Doubtul Total Doubtful Total Certain Doubtful Total Total Doubtful Certan Certain Dou bithul
0-Bailoon 3 0 3 15.0 0.0 13.0 5 71/4 00 71.4 0 1 4.2 0.0 2 0 88 8.0
I-Astronomical 2 2 4 10.0 20.0 0 0.0 0.0 7 0 7 29.2 0.0 29.2 / 6 7 40 24.0 280
2-Aircraft 0 0.0 0 0.0 4 1 5 167 4.2 20.9 H / 5 16.0 4.0 20.0
3-Light Phenom. 0 0.0 0 0.0 0 0.0 0 0.0
4-Birds 4-Birds 0 0 0.0 0. 0 0 0.000 00 00 0.0 0. 0.0 0 0.0
5-Clouds, Dust, etc. 0 0 0.0 0.0 D 0.0 00 0.00.0 0 0 20 0.0 6 8 0.0.0.0
5-Insuffic. Info. 6-Insuffic. Info. 2 0 2 10.0 0.0 0.010.0 10.0 0 0 0.0 0.00.0 7 0 7 29.2 00 00 29.2 2 0 D 8.0 0.08.0
7-Psychological 0 0 00 0.0 0.0 0 0.00.0 0 0.0 0000 p 8 00 0.00.0
8-Unkno wn 8 0 8 400 400 0.0 40.0 2 D 2286 2286 0.028.6 4 H 0 0 16.7 0.016.7 5 8 32.0 0.032.0
9-0ther 0 3 0.015.8 15.0 0 0.0 8.0 0.000 0 0.00.0 / 0 1 4.0 0.04.0
Total 15 5 2075.025.0100.7 0 0 71000 0.0100.23 12495.8 100.0 0.0100.23 1 2495.8 4.2100. 18 7 25 4.2100.18 7 25 72.028.0100.
SEPTEMBER OCToBeR OCroBeR NOVEMBER DECEMBER
Number Per Cent Number Per Cent Number Per Cent
Evaluation Evaluation Doubtful Total Certain Doubtul Doubthul Certain Doubt ful Certan Doubtful Total Doubtul Certan Certan Doubithul Total Doubitful Total Certain Dau biful Dkau btful Tota
- 0-Balloon 8 0 0 0.0 0.0 1 0 1 10.0 0.0 10.0 0 2 2 8.7 27 2 4 6 6.5 6.5 12.9 19.4
1-Astronomical 0 5 385 0.0385 0.0 385 , , 1 / 2 10.0 10.0 20.0 0 0 0.0 00 10 10 7 17 17 32.3 32.3 22.6 54.9 54.9
2-Aircraft 2-Aircrat 2 0 15.4 40 15.4 / / 0.0 10.0 10 0 2 10 8.7 34.8 43.5 / 1 3.2 0.0 32
3-Light Phenom. 0 0 0.0 0.0 0.0 0 6 0.0
4-Birds 0 0 0.0 0.0 0 0.0 d 0 0.0
5-Clouds, Dust, etc. 0 0.0 0.0 0.0 0 0 00 0.0
5-Insuffic. into. 3 23.1 0.023.1 0 0.0 1 4.3 3.2 0.0 3.2
7-Psychological 0 0.0 000.0 0 0.d 0.0 0 3 9.7 0.0 9.7
&-Unknowm 3 0 3 23.1 0.023.1 0 6 60.0 00600 9 39.1 0.039.1 2 0 2 6.5 0.0
9-0ther 0 0 0.0 0.00.0 0 0 0.0 0.00.01 4.3 0.0 4.3 1 3.2 0.0
Total 13 0 13400.0 0.0100.8 2 10 80020.0100.13 10 23 56.543.5100. 20 1131 63.535.51 100.
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I
113

I
1
TRRLE AI EVALVATIONOF ALL SIGHTINGS By MONTH OE ERR 1951
I
JANURRY EEBROARY MARCH APRIL
Number Per Cent Per Cent Per Cent Number
Evaluation Doubthul Certain Doubtful Total Certain Doubtful Total Doubtful
0-Balloon .2 2 4 7.4 14.8 0 - 6.7 0.0 0 0.0 D O 0.0 1
1·Astronomica! / 7 5 3.7 14.8 18.5 0 2 2 0.0 13.3 16.7 16.7 33.4 o 0.0
2.Aircraft 0 2 00 74 7.4 0 3 0.0 20.0 20.0 - 0.0 167 16.7 O - 33.3 0.0 33.3
3-Light Phenom. 0 0 0.0 0.0 00 O 0.0
4-Birds 0 0 0.0 0.0 0 O 0.0 1
5-Clouds, Oust, etc. 0 0 0.0 0.0 O 00 o 0.0
G-insuffic. inko. 5 18.5 0.0 O 0 O 0.0 2 2 66.7 0.066.7
7-Psychelogi cal 0 0 0.0 0.0 0 O ao 0.0 o 0.0
8 Unknown 10 0 .10 37.1 0.0 371 7 46.7 0.0 3 © 3 50.0 0.050.0 O 0 0.0 1
9.0ther O , 3.7 0.0 0 2 13.3 0 ao 0.0 o O
.
Total 19 8 27 70.429.6 100. 10 5 15 66.7 33.3100. 4 2 6 33.3 Voo. O 3 100.0 0.0 100.
1
MAy JUNE JyLy AUGUSt
Number Per Cent Number Per Cent Number Per Cent 1
Evaluation Certain Doubtful Total Doub tful Total Certain Doubtful Total Certain Doubtful Doubtfu Dau btful
0-Balloon 0 2 10.0 0.040.0 O 0.0 0.0 0 0.0 00 2 5.0 140
1-Astrononical 0 0 0.0 O O 0.0 2 3 11.1 222 33.3 o 0 0D 0.0
2-Aircraft - •
0 20.0 0.0 20.0 o 100.0 ao V0o.0 - 1.1 0.0 11.1 O 0.6 5.0
3-Light Phenon. 0 O 0.0 0 O 0.0 2 3 10.0 5.0 15.0
4-Birds O - 0.020.0 20.0 O 0 0.0 ao 0 00 0.0 0
5-Clouds, Dust, etc. 0 O O 0 0.0 0.0 O 8 a.d a.0 00 O.D 0
6-Insuffic. tnlo. 3 0 O 0.0 0 O 0.0 0.0 0 O OD 3 15.0 15.0 | |
7-Psychological 0 0 O 0.0 0.0 8.0 8.0 O a0 00 o o - 0.0. 11.1 11.1 0 0.0
8-Unknown &-Unknown 1 0 1 - 20.0 0.0 20.0 Q 0 0.0 0 3 33.3 833 10 O 50.0 0.050.0 0.0
9-0ther Q 0.0 0.0 0. 0 O O 0 0.0 - 0.0 11.1 1 o 5.0 5.0 0.05.0
Total 4 / - 5 80.0 20.0 100. I - O 1400.0 0.0100. 6 3 . 9 66.7 33.3 100. 18 2 20 90.0 10.0
SEPTEMBER OCTOBER NoVeBeR NOVEMBER . DECEMBER
Humber Number Per Cent Number Number Per Cent Num ber
Evaluation Certain Doubtful Doubtul Total Doub thul Cerlain Cerbain Doubtful Total Certain Doubthul Doubtful Dou btful
0-Baltoon 1 1 - 5.6 0.0 56 2 2 7.1 0.0 7.1 71 / 5.9 5.9 0 0 - 9.1
1-Astronomical 3 1 / 4 16.7 5.6 5.6 22.3 22 9 10 32.1 3.6 3.6 35.7 8 5 13 47.0 29.4764 29.4 764 2 - - 3 18.2 18.2 9.1 27.3
2-Aircraft 2-Aircraft 0 I / 5.6 0.0 0.0 5.6 4 6 14.3 7.121.4 7.1 21.4 2 0 2 11.8 0.011.8 11 .8 4 36.4 0.0 36.4
3-Light Phenom. 0 0 0.0 0 0.0 0.0
4-Birds O 0 0.0 0.0 0
5-Clouds, Dust, etc. 0 0 0.0 Q a0 0.0 0 0
6-insuffic. tnfo. 0 2 11.1 11.1 0 0.0 1 5.9 5.9 - 9.1
7-Psychological 0 0.0 a0 O 0 0 0.0 - 9.1 00
8-Unknown 8 8 14.4 0.044.4 0 9 32.1 00 0 0.0 0.0 - 9.1
9-0ther 2 0 11.1 0.011.1 - 3.6 3.6 0 O 0.0 00
Total 17 11894.4 5.6100.25 3 28 89.3 10.7100. 11 6 64.7 35.3 100. 10 1 1/ 91.9 9.1100.
114

TABLE AIO EVALVBTION OE ALL SI6HILNGS B4 MONTH IEAR 1952
JANUARY FEBRUARY MARCH APRI
Per Cent Per Cent Number Number Per Cent
Evaluation Certan Doubtful Total Certain Certain Doubtful Total
0-Balloon 1 0 6.7 0.0 6. 7 0 5.6 0.0 56 - 4 11.1 3.7 148 3 2.9 29 5.8
1-Astronomical 4 4 8 26.7 53.4 5 22.2 5.6 27.8 - 0 - 3.7 0D 3.7 18 0 18 17.5 0.0 77.5
2.Aircraft 0 0.0 0.0 2 2 4 11.1 11.1 22.2 3 5 7.4 18.5 15 8 23 14.6 7.8 22.4
3-Light Phenom. o 0 0.0 0 0.0 1 1.0 0.0 1.0
4·Birds 0 0.0 O 00 - 0 3.7 0.0 3.7 3 4 2.9 1.0 3.9
5-Clouds, Dust, etc. 0 Q 00 - OD 3.7 0 0.0 0.0
6 insuffic. info. 0 a 00 5.6 c.0 5.6 1 3.7 37 10 9.7 0.0
7.Psychological 2 13.3 00 0 0.0 0 a 1 1 1.0 0.0
& Unkuno wn 2 0 2 13.3 5 27.8 00 0 4 148 19.8 38 0 38 0.0 36.9
9.0ther 0 2 0.0 13.3 0 2 11.1 00 1 9 10 3.7 33.3 37.0 o 1.9 0.0 1.9
Total 11 73.3 26.7 15 3 18 83.3 16.7 14 13 27 51.8 48.2 100. 91 12 103 88.4 11.61
MAy JUNE JULy AUGUST
Number Number Per Cent
Evaluation Doubtful Total Certain Doubthul Certain Doubthul Total Dou btful
O-Balloon 15 4 19 13.3 3.5 16.9 26 6 32 148 3.4 182 98 5A4 142 11.3 6.9 18.2 36 41 77 9.1 10.3 19.4
l-Astronomical 16 2 18 14.2 1.8 160 24 17 41 13.6 9.7 23.3 99 34 133 12.7 4.3 17.0 43 26 69 10.8 6.6 17.4
2-Aircraft 17 39 15.0 10.6 25.4 26 12 38 148 6.8 21.6 123 89 211 15.7 11.3 270 45 43 88 11.4 10.8 22.2
3-Light Phenom. 3 0 2.7 2.7 0.6 0.0 0.6 12 4 16 .5 2.0 5 6 II 1.3 1.5 2.8
4-Birds 0 0.0 0.0 4 4 - 5 .5 .5 .1 .1 .6 .6
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 8 7.1 00 00 0D 4 4 - 5 .5 .5 .1 .6 0 - 0.0 0.0 .3
6-Insuffic.. Into. 6-Insuffic. Into. 0 6 5.3 5.3 0.0 20 11.4 0.0 114 70 70 O 9.0 90 35 0 35 88 8.8
7-Psychological 7-Psychological 0 00 0.0 4 4 0 2.3 00 2.3 9 6 15 1.2 .8 2.0 8 - 9 .3
8-Unknown 8-Unkno wn 0 O 20 17.7 17.7 0 33 188 00 18.8 163 208 0.0 20.8 93 93 234 234 23.4
9-0ther 9 9 - 10 8.0 0.9 0.9 8.9 6 6 1 7 7 3.4 0.6 9.0 21 - 22 2.7 .1 2.8 2.8 5 5 14 2.3 1.3 36
Total 94 19 94 19 113 83.2 83.2 16.8 100. 140 36 176 79.620.4 100. 16.8100. 140 36 176 79.6 20.4 593 189 782 75.8 24.2 100. 274 123 123 397 69.7 69.7 31.3
SEPTEMBER OCTOBER NOVEMBER NoVEMBER DECEMBER
Number Per Cent Number
Evaluation Certain Doubtul Total Doubttul Doub thul Doub thul Certan Doubtful Certain Doubtful Doubtful Total Dou btful Total
0-Balloon 4 11 15 15 2.5 68 68 9.3 8 8 12 20 20 8.7 13.1 21.8 2 9 1I 11I 30 30 3.4 13.4 164 D 3 0.6 4.6
1-Astronomical 22 9 31 5.6 192 5.6 19.2 10 10 23 23 14.1 14.1 10.9 250 5 5 8 13 13 7.5 11.9 19.4 11 20 16.7 13.6 13.6 30.3
2-Aircraft 10 36 46 6.2 22.2 28.4 5 13 18 54 1.1 9.5 3 6 4.5 45 9.0 / 13 14 1.5 19.7 21.2
3-Light Phenom. ! 6 1.2 18 4 4 0.0 4.3 2 3 3.0 45 - 0 1.5 0.0 1.5
4-Birds 1 2 3 .6 1.2 1.8 9 5 4.3 1.1 54 0 0.0 0 0.0
S-Clouds, Dust, etc. / 0.6 0 , 1.1 11 8 00 11.9 0 0 0.0 0.0
5-Insuffic. into. 0 12 7.4 93 0.0 4.3 4 9 60 6.0 3 3 4.6 0.0 4.6
7-Psychological 1 0.6 0.6 0 00 0.0 0 1.5 0.0
& Unkno wn 42 259 25.9 0 14 15.2 19 19 0.0 28.4 0 22 33.4 0.0
9-0ther 6 8 3.7 1.2 4.9 2 3 2.2 1.1 3.3 30 3.0 3 0 4.6 0.0 4.6
Total 99 6316261.139.9 100. 50 42 9254.4 45.6 100. 38 29 6756.743.3100.4125 66 62.1 37.9 100.
115

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-
TABLE All EVALVATION OF UNIT SIGHTINGS BY MONTH YEAR ALL YEARS
-
JANVARY FEBRUARY MARCH APRIL
Number Number Per Cent
Evalua bion Certan Certain Doubtful Total
0Balloon 5 3.8 2 5 6.3 7 0 10.9 00 10.9 8 2 10 7.5 1.9 9.4 7 3 10 4.9 2.1 7.0
1-Astronomical 21 18 39 262 22 5 48 7 11 15 26 17.2 23.5 40.7 12 27 14.0 11.2 25.2 26 3 29 18.3 2.1 20.4
2-Aircraft 6 3 9 7.5 8 11.3 7 5 12 10.9 7.8 18.7 12 7 19 11.2 6. 17.7 23 31 16.2 4.9 21.1
3-Light Phenom. 0 90 0.0 0 1 , 0.7 0.0 0.7
4-Birds 0 Q 0 00 0.0 3 3 2.8 0.0 4 - 5 2.8 0.7 3.5 -
S-Clouds, Dust, etc. 00 0.0 0.0 , 0.9 0 0 0.0
6 insuffic. into. 8 10 θ 100 3 4.7 15 0 14.0 0.0 14.0 21 0 14.8 0.0 14.9
7.Psychological 5 2.5 0 0.0 O 8 00 2 1.4 0.0
8-Unknown 11 13 0 13 8 Q 9 14.1 17 15.9 15.9 42 0 42 29.6 0.0 29.6 -
3.0ther 5 1 6 6 2 1.3 7.5 0 7 10.7 10.9 , 14 15 0.9 13.1 14.0 0 2 1.4 0.0 1.4
Total 56 24 80 700 30.0 44 20 64 688 3/.3 100 71 36 107 66.4 33.6 100. 128 14 142 90.1 9.9 100.
-
MAr JUNE Juer AUGUST
Per Cent Number Number Per Cent -
Evaluation Doubtful Total Certain Doubthul Doubtful Dou btful
O-Balloon 18 5 23 12.0 3.3 15.3 29 6 35 14.4 3.0 17.4 92 48 140 11.9 6.2 18.1 39 42 5.7 9.418.1
1-Astronomical 23 8 31 15.3 5.3 20.6 25 21 46 12.4 10. 4 22.8 104 44 148 13.4 5. .7 191 47 6 11 - 10.5 14.3 244.9
2-Aircraft 18 15 33 12.0 10.0 22.0 30 13 43 14.9 6.5 21.4 106 81 187 13.7 10.5 24.2 48 38 8 6 10.7 8.5 19.2
3-Light Phenom. 3 2 5 2.0 1.3 3.3 1 0.5 1.0 14 4 18 1.8 2.3 7 1.6 1.6 3.2
4-Birds OITO V 2 < 2 1.3 1.3 2 0 0.0 0.0 0.0 3 3 6 0.4 8 0 0O 0.0 0.0 0.d 0.0
S-Clouds, Dust, etc. 2 0 2 1.3 0.0 1.3 9 / / - 0.1 0.1 .2 1 00 0.2
6-Insuffic. into. 22 0 22 14.7 0.0 147 23 0 23 11.4 81 10.5 10.5 10.5 42 42 9.4 00 9.4 00 9.4
7-Psychological 0 0.0 0.0 0 6 3.0 3.0 9 9 8 17 1.2 1.0 2.2 10 / 11 0.22.4
8-Unkunown 8-Unknown 2.3 23 23 15.3 0.0 15.3 0 38 38 18.9 18.9 146 146 18.8 0.0 18.8 87 87 19.4 0.019.4
9-0ther 7 2 9 4.7 1.3 1.3 6.0 1 8 3.5 0.5 4.0 29 I 30 3.7 3.7 0.1 3.8 11 5 16 2.4 1.1 3.5
Total 116 34 150 150 77.3 22.7 100 159 42 201 79.1 20.9 20.9 100 585 190 775 75.5 24.5 100. 291 158 4 4964.835.2100. 44964.835.2100.
SEPTEMBER OCTOBER NoVEMBER NoVEMBER ECEMBER
Number Per Cent Number
Evaluation Doubttul Total Doubtful Total Doubthul Doubtful Doubtful Certain Douttful Total Certain Dou biful Dou biful Total
G-Balloon G-Balloon l 13 19 3.1 6.8 9.9 8 8 '2 20 20 5.4 8.2 13.6 5 17 4.2 10.0 14.2 14+2 6 C 12 12 4.7 4.7 9.4 9.4
1-Astronomical 30 30 11 41 15.6 5.721.3 27 19 19 46 46 18.4 12.9 12.9 71.3 31.3 25 25 19 43 43 20.8 15.0 35.8 29 23 23 52 22.8 18.1 40.9
2-Aircraft 13 1.3 31 ?/ 44 4.4 6.8 10 16.1 22.9 0 5 25 6.9 1o 10.2 10.3 17.0 17.0 11 A 19 9.2 07 6.7 15.9 8 17 12 20 6.3 4.3 9.4 15.4 154
3-Light Phenom. 1 2 3 0.5 10 1.5 1 5 0.7 2.7 3.4 3 4 25 0.8 3.3 0 1 0.0 0.8
4-Birds 1 2 3 0.5 10 1.5 2 4 1.4 1.41 2.8 0.0 0.0 00 D 0 0 0.0
S-Clouds, Dust, etc. 0 1 0.0 0.60.5 I 1 0.7 2 0.0 1.7 0 0 0.0
6-insuffic. info. 20 0 20 10.4 00 10.44 10 0 6.8 7 0 7 5.8 0.0 5.8 9 9 7.1 0.0 7.1
7.Psychological 3 0 3 16 0.01.6 0.7 1 1 08 0.0 0.8 2 2 1.6 0.0 1.6
8-Unkuno wn 47 0 47 24.7 0024.7 31 3/ 21.1 2e 21.1 23 0.0 19.2 23 0.0 18.1
9-0ther 8 3 1/1 1n2 1.6 5.8 3 1 2.0 0.7 2.7 4 0 4 3.3 0.0 80 8 0.0 6.3
Total 12963 19267.232.8100.93 54 14763.336.7 100. 79 41 12965.834.2100. 86 41 127 67.7 32.3 100.
116

TABLE A12 EVALVATION Of UNIT SIGHTINGS 8Y MONTM OE YEAR 1947
JANUARY FEBRUARY MARCH Apcn
Per Cent Number Per Cent
Evaluation Total Doubtful Total Certain Doubthul Doubthul Total Certan Doubitul Total Certain Dou bi ful
0-Bailoon
1-Astronomical
2-Aircraft
3-Light Phenom. DATA
4-Birds DATA
5-Clouds, Dust, etc. NODATA
NO DATA
5-Insuffic. info.
7-Psychological No
8-Unknown
9-0ther
Total
MAY JUNE JuLk AUSUST
Per Cent Number Number
Evaluation Certain Total Doubtful Doubthul Dou btful
0-Ballaon 1 1 7.7 6 0 13.0 0.0 13.0 0 0.0
1-Astronomical 0 - 0.0 7.7 7.7 2 3 5 4.3 6.5 10.8 1 18.2 9.1 27.3
2-Aircraft 2 15.4 0.0 15.4 0 4.3 4.3 0
3-Light Phenom. 0 O 0.0 0.θ 1 - 2.2 0.0 0.0
4-Birds 0 0 0.0 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. NO DATA 0 0 0.0 0.0
6-Insuffic. into. 6-Insuffic. info. 0 3 3 23.1 23.1 6 13.0 0.0 13.0 0 2 18.2 0.0 18.2
7-Psychological 1 - 0 7.7 7.7 0 2 0.0 0.0 4.3 4.3
8-Unkuno wm 8-Unkno wn 4 0 4 30.8 9 9 0 19.6 6 54.5 0.0 54.5
9-0ther 1 0 0 7.7 15 15 32.6 0.0 0.0
Total 12 1 13 92.3 7.7 100. 39 7 46 84.8 84.8 15.2400. 15.2 Voo. 10 1 11 /1 90.9 9.1 9.1
SEPTEMBER SEPteMBER OCTOBER NOVEMBER NOVEMOER DECEMBER ECFMBER
Number Per Cent Per Cent
Evaluation Evaluation Doubtul Total Doubthul Total Certain Doubtful Doubtful Total Doubthul Total Certain Dou btful Total
G-Bailoon 0-Bailoon 0.0 0 0.0 0 0 0.0
1-Astronomical 1-Astronomical 0 0 1 16.7 8 2 10 61.5 15.4 76.9 I - / / 2 33.3 6l.6 6l.6 5 100.0 0.0 100.0
2-Airciaft 0.0 0 0 0.0 Q.0 0.0
3-Light Phasos. 0.0 - I 33.3 0.0 33.3 0 0 0.0
4-Birds 8.0 0 0 0.0 0 0.0
S-Clouds, Dust, etc. 0.0 0.0 0 00 0
6 insuffic. into. - / 16.7 0.0 0 0 0.0 θ
7-Psychological - 16.7 16.7 / 7.7 0.0 0.0 0 0 0.0
B Unkuno wn 3 3 50.0 50.0 2 2 15.4 0 0.0 0 0.0
9-0ther 0 0.0 0.0 0.0 0 D
Total 6 0 100.0 0.0 100. 11 13 84.6 15.4 2 1 3 66.7 33.3 Va. 5 0.0
117

-
I
TABLE A13 EVALVATION OF UNIT SIGHTINGS BY MONTH YEAR 1948
-
TaNvaRr FEB RVARY MARCH APRI
Number Number Per Cent
Evalustion Certan Dout tful Doubtful Certain Total
0 Balloon 0 0 0.0 0.0 2 20.0 20.0 -
1·Astronomical 6 3 9 50.0 25.0 75.0 3 5 60.0 40.0 100.0 2 2 22.7 0.0 22.2 0 20.0 20.0
2.Aircraft 0.0 0 2 0.0 0 0 0.0 3 3 30.0 30.0
3-Light Phenom. 0 0.0 a.0 0 00 D 0.0
4-Birds 0 0 0 0.0 0.0 0.0 1 - 10.0 -
S-Clouds, Dust, etc. 0 0 0.0 C 0.0 0 4 0.0
6 insutfic into. 16.7 16.7 0 0.0 0.0 0.d 0 2 22.2 22.2 - 10.0 10.0
7.Psychological 0 00 0.0 0 0 0.0 0.0
& Unkno wn V 0.0 0 L 1 11.1 0.0 11.1 10.0 10.0 -
90ther / - 2.0 8.3 8.3 0 0 a.d 00 4 44.4 44.4 0.0
Total 14 6l.7 333 100. 3 2 5 60.040.0 100. 5 4 9 55.6 44.4 8 10 8a0 20.0 100
1
MAr. JUNe JurY AUGusT
Number Per Cent Number
Evaluation Doubtful Doubthul Total Certain Doubtul Doubtful Total Dou btful
0-Balloon 0 0.0 0.0 00 66.7 4 1 5 14.8 3.7 18.5 2 20.0
1-Astronomical - 1 10.0 20.0 0 0 0.0 0.0 4 4 8 14.8 29.6 2 40.0
2-Aircraft 1 g - 100 0.0 10.0 0 0.0 00 4 2 6 14.8 7.4 22.2 - 2 20.0 •|
3-Light Phenom. 0 2 2 0.0 20.0 20.0 9 0 1 0 1 0.0 3.7 O Q
4.Birds 4 Birds 1 - 10.0 10.0 0 0 0.0 0.0 / 3.7 3.7 0.0
5-Clouds, Dust, etc. S-Clouds, Dust, etc. 0 0 00 00 0.0 0.0 1 0 33.3 33.3 9
6-insuffic. into. 6-insuffic. Into. 3 3 300 00 00 30.0 0 0 0.0 0.0 I / / 10.0 1 1
7-Psychological 0 0 0.0 00 0.0 0
&-Unknown 8-Unknown 1 / 10.0 0.0 10.0 0 0.0 5 5 18.5 18.5 ρ 0 0 0.D
9-0ther 9-0ther 0 0.0 0.0 1 3.7 3.7 0 1 10.0 10.0 1 |
Total 6 6 4 4 10 60.0 40.0100. 3 0 3 100.0 0.0 19 8 27 70.4 70.4 29.6 100. 10 40.0 190.
1 1
SEPTEMBER CTOBER TOBER NOVEMEER NOVEMBER DECEMBER
Per Cent Number
Evaluation Certain Doub tful Certain Doubthul Total Doubtful Certan Doubtful Total Doubtful Total Dou btful Dou bitful Total | -
G-Balloon G-Ballioon 0.0 33.3 3 6 150 15.0 15.0 30.0 30.0 1 / 2 5.9 5.9 11.8 17.7 2 0 2 0.0 8.3 8.3
1-Astronomical 1-Astronomical 1 I 0.0 16.7 16.7 - 3 4 4 5.0 15.0 20.0 7 1 / 41.2 5.9 47.1 2 8 10 8.3 8.3 33.3 41.6
2-Aircraft 0 1 16.7 0 - 5.0 0.0 4 4 23.5 0.0 2.3.5 1 - 0.9 4.2 4.2
3-Light Phenom. 0 0.0 / - 5.0 5.0 0 0.0 0.0
4-Birds 0 0.0 - 2 5.0 5.0 10.0 0.ρ 0.0 0 0 4.9
5-Clouds, Dust, etc. 1 0.0 C g.0 0 0 0.0
6-insuffic. Info. 0 0 0.0 0.0 0 4 20.9 20.0 - - 5.9 5.9 3 3 12.5 12.5
7-Psychological 1 0 - 16.7 0.0 0 0.0 0
8-Unikno wn 0 2 2 10.0 0 0.0 0.0 6 25.0 25.0
9-0ther 1 167 16.7 0 0.0 / 1 5.9 0.0 5.9 2 β.3 8.3
Total 2 4 6 33.3 66.7 100. 13 7 20 65.0 35.0 14 3 17 82.4 17.6 100- 15 9 24 62.5 37.5 /00.
118

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TA8LE A14 EVALVATON OE VNIT SIGHTNGS By MONTH OF YEAR, 1949
TANUARY FEBRYARY MAR.CH APRIL
Per Cent Number Per Cent
Evailuation Certan Certain Total Doubtful Doubtful Tota
0-Ballaon 1 5.6 2 0 14.3 0.0 14.3 0 0.0 - 0.0 5.3
1-Astronomical 2 8 11.1 33.3 44.4 6 14.3 429 57.2 7 11 18 226 35.5 58 8 369 5.3 42.1
2-Aitcraft 4 1 5 22.2 5.6 27.8 O - 7.1 0.0 7.1 0 6.5 6.5 2 2 10.5 0.0
3-Light Phenom. 0 0.0 0.0 0
4-Birds 0 0 2 2 6.5 0.0 O 0 0.0
5-Clouds, Dust, etc. 0 0 0.0 Q 0.0 0 0.0
6-insuffic. into. 0 0 0.0 - 7.1 0.0 7.1 4 12.9 5 5 26.3
7.Psycho logi cal C 0 0.0 0.0 0
8&- Unkuno wn 3 16.7 0.0 167 - 0 1 7.1 7.1 5 16.1 16.1 3 15.8 0.0
3-0ther 1 1 5.6 / , 0.0 7.1 0 0 00 0.0
Total 10 18 55.6 44.4 100. 8 6 14 57.1 42.9 100. 20 II 31 64.5 35.5 - 19 94.7 5.3
MAr JUNE Jucr AUGUST
Number Per Cent
Evaluation Total Doubtfu! Total Doubttul Certain Doubtful Certain Dou btful Totai
O-Balloon 4 1 5 10.0 2.5 125 0 - 5.9 00 5.9 / 6.2 6.2 0 0.0 0.0
1-Astronomical 7 4 6 17.5 10.0 27.5 3 4 5.9 17.6 235 0 5 0.0 31.2 / 30 31 2.6 76.9 79.5
2-Aircraft 4 7 10.0 7.5 17.5 - 2 5.9 11.8 0 3 0.0 18.8 / 2.6 5.1 7.7
3-Light Phenom. 0 0.0 0 0.0 Q
4-Birds 0 0 D 0.0 0 8 8 0.0 0.0 / I - 6.2 C.2
S-Clouds, Dust, etc. 5-Clouds, Dust, etc. O 0 0.0 2 0 0 0.0
6-Insuffic. Into. |1 |I 0 11 27.5 275 2 0 11.8 0.0 11.8 3 18.8 2 0.0 5.1 5.1
7-Psychological 7.Psychological 0 / 5.9 5.9 0 θ 8 0.0 0.0 2 2 5.1 5.1
8-Unknown B-Unknown ( 15.0 15.0 0 6 35.3 0.0 0.0 2 2 12.5 00 12.5 - 0 1 1 2.6
9-0ther 0 0.0 / 0 / 5.9 5.9 1 6.2 00 6.2 0 0.0
Total 32 8 40 40 90.0 90.01 20.0 13 4 17 76.5 23.5 100. 7 9 16 43.8 56.2 56.2 100. 32 39 39 17.9 82. 100
SEPTEMBER SEPTEM BER OcTOBER NOVEMBER NoveMBER DECEMBER
Number Per Cent Number Per Cent
Evaluation Evaluation Total Certain Doub tful Doubtful Total Certain Doubtful Total Dou btful
0-Balloon 0-Balioon / , 33.3 33.3 0 0.0 0.9 / / 0.0 6.7 6.7 1 0 0 1 0.06.7
1-Astronomical ρ 0 0.0 0.0 / / 3 4 1.1 111 33.3 33.31444 44.4 7 7 11 26.7 46.7 73.4 2 4 6 C 13.3 26.740.0 26.7 40.0
2-Aircraft 00 - 2 11.1 22.2 0 1 0.0 6.7 13.3
3-Light Phenom. 0.8 g.0 0 0.0 0θ 0 0.0 O
4-Birds 0 0 0.0 Q 0.0
5-Clouds, Dust, etc. 0 0.0 0.0 00 0 0.0 D 0.8
6-Insuffic. info. 2 2 c6.7 667 22.2 222 0 0.0 0.0 / - 6.7 6.7
7-Psychological 0 0.0 0 0.0 0 00
&-Unknown 0 0.0 0.0 1 11.1 2 13.3 3 0 3 20.0 29.0
9-0ther 0 0 0.0 0.0 2 13.3 13.0
Total 3 0 3 100.0 0.0 5 4 9 55.6 44.4 100. 6 40.0 60.0 100. /1 15 73.3 26.7100
C
119

-
I
TABLE RI6 EVALVATION Of UNIT SIGHTINGS By MONT OF YEAR 1950
JANVARY FEBRUARY MARCH -
APRIL
Number Per Cent Number Per Cent
Evaluation Certath Doufh thul Certan Doubtul Total Doubtful Certain Doub tful Total Certain Doubthul Doubtful Total Tota
G-Balloon 0 0.0 3 0 3 16.7 5 / 6 13.5 2.7 / 0 1 5.3 0.0 5.3
I-Astronomical 8 3 11 50.0 188 688 2 6 11.1 22.2 33.3 4 0 10.8 0.0 10.8 0 21.1
2.Aircraft 2 0 2 12.5 0.0 12 5 0 4 22.2 0.0 22.2 7 /1 18.1 10.8 29.7 4 4 21.1 0.0 21.1
3-Light Phenon 0 0 0.0 00 0.0 0 0.0
4-Birds 0 00 0 0.0 0.0 0 0.0
5 Clouds, Dust etc. 0.0 00 0 0 G.0 0 0.0 -
0.0
6 Insuffic. imfo. 1 0 6.2 00 6 2 , 1 56 0.0 5.6 8 0 21.6 3 O 3 15.8 0.0 15.8
7.Psychological 0 0.0 0.0 0 0.0 θ.0 1 1 5.3 0.0 5.3
& Unkno wm I 0 1 62 0.0 6.2 2 2 11.1 11.1 4 0 10.8 6 0 6 31.6 00 31.6 -
30ther / 0 1 6.2 0.0 6.2 0 2 11.1 11.1 4 10.8 0 00
Total 13 3 16 81.2 18.8 100 14 4 18 77.8 22.2100. 28 9 37 75.7 24.3 100. 19 100.0 0.0100.
1
MAK JUNE Juar AUGUST
Number Per Cent Number Per Cent Number Per Cent 1
Evaluation Certain Doubtful Certain Total Doubthul Certain Doubtful Total Doubtful Total Certain Doubthul Dou biful
G-Balloon 0 - 4 0.0 14 0 4 667 0.0 66.7 - 4.8 0.0 0 2 8.7 8.7
1-Astronomical 2 14.3 14.3 28.6 0 0 0.0 0.0 7 0 7 33.3 33.3 / 6 4.3 26.1 30.4
2-Aircraft 2 O 0.0 0 0 0 0.0 / 5 19.0 4.8 23.8 4 1 5 17.4 4.3 21.7
3-Light Phenom. 0 0.0 D 0.0 0 0.0 O 0 0.0
4 Birds C 0 0.0 0 0.0 0 0.0 O 0.0
S-Clouds, Dust, etc. 5-Clouds, Dust, etc. ol 0 0.0 0.0 0 5 9 V. 0.0 V.V
0.0 O 0 0.0
6-insuffic. into. 6-insuffic. into. 2 28.C 0.0 286 286 0 0.0 4 0 4 19.0 2 0 8.7 0.0 8.7 1 1
7-Psychological 0 0 0.0 0 0.0 0.0 0 00 0.0
8 Unkunown 8 Unkunown 1 0 - 1 14.3 0.0 2 33.3 00 0.0 33 3 4 0 4 4 0.0 19.0 6 ② 6 26.1 0.0 26.1
9-0ther 2 J 1 / / 0.0 14.3 143 0 0 0.0 0.0 0 1 1 / 4.3 0.0 4.3
-
Total 5 2 771.4286 100. C 2 771.4286 100 C 0 0 6 100. 0.0 100. 20 1 21 95.2 4.8 100. 16 16 7 23 69.6 30.4
SEPTEMBER SEPTEMOER OCTOBER NOVEMBER ECEMBER ECEMB ER
Number Per Cent Nu.nber Nunber Number Per Cent Num ber Per Cent
Evaluation Certain Certain Doubtful Total Doubful Certain Doubtful Total Doubtfu Dou btful Total
G-Balloon 2 2 0 00 0.0 0.0 1 / 0 1 10.0 0 13.3 0.0 /3.3 2 4 6 8.3 16.7 16.7 25.0
1-Astronomical 0 5 385 0.0 38.5 - / - 2 10.0 10.0 20.0 20.0 0 0.0 0.0 9 3 3 12 37.5 12.5 12.5 50.0
2-Aircraft C C 2 2 15.4 0.0 15.7 154 0 - 1 0.0 10.0 10.0 4 6 13.3 13.3 26.7.40.0 26.7 40.d 9 1 4.2 0.0 4.2
3-L ight Phenom. 0 0 0.0 0.0 0 0.0
4-Birds 0 0.0 0.0 Q 0 0.0 0
S-Clouds, Dust, etc. ( 2 0 0.0 0.0 0 00 0.0 0.0 0 a.0
5-insuffic. info. 0 3 23.1 0.0 23.1 0 9 0.0 00 1 / 6.7 - 0 4.2 4.2
7-Psychological 0 0 0.0 0.0 00 0.0 0 0.0 0 1 4.2 4.2
&-Unkuno wn 3 0 3 23.1 0.0 23.1 6 60.0 0.0 5 0 5 33.3 2 8.3 0.0 8.3
9-0ther 9 0 0 0.0 1 0 1 6.7 0.0 / 0 4.2 0.0 4.2
Totad /3 0 /3 100.00.03.0.82 10 80.0 200 100. /1 4 15 73.3 26.7 17 7 24 70.2 29.2 100.
120

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TABLE A16 EVALUATION OF UNU SIGHTINGS BY MONTH OF YEAR 1951
-
JANVARY RVARY MARCH APRIL
Number Number Per Cent
Evaluation Cintain Certan Certain Doubtful Total
G-Balloon 1 3 10.5 53 15.8 - 1 11.1 11.1 0 0.0 0 0.0
1-Astro nomical - 2 3 5.3 10.5 15.8 0 2 0.0 22.2 222 - 2 16.7 33.4 0 0.0
2-Asrcraft 4 2 10.5 105 0 3 33.3 1 0.0 16.7 - 0 1 33.3 0.0
3-Light Phenom. C 0.0 0.0 Q 0 0 0.0
4-Birds C 00 0.0 0 0 0 0.0 O
S-Clouds, Dust. etc. C 0.0 0 0 0.0
6insuffic. Into. S 5 26.3 0.0 26.3 0 0 0.0 2 66.7 0.0
7.Psychologn cal C 0.0 O 0.0 0 0 0.0
8-Unkno wn 5 26.3 0.0 1 1 11.1 3 50.0 50.0 0 0 0.0 0.0
1-0ther 1 4.0 5.3 2 0 2 22.2 0 0.0 C 0 0.0
Total 14 5 19 73.7 .6.3 4 5 9 44.4 556 2 6 66.7 33.3 100. 3 0 110.0 0.0 100
MAY JUNE Jucy AUGUST
Number Per Cent
Evaluation Doubtful 2 Doubttul Total Certain Dou btful
G-Balloon 2 ? 40.1 0.0 40.0 0 4 0.0 0 1 I 5.9 11.8
1-Astronomical 0 C C.C , 0.9 - 2 3 11.1 22.2 33.3 C 0 0.0 0.0
2-Aircraft 1 0 - 20.0 0.0 ( 1002 0.0 100.0 I 11.1 / 0 5.9
3-Light Phenom. 0.0 0.0 0 20 Q 0 0.0 2 / 3 11.8 5.9 17.7
4-Birds 4-Birds - - C.C 20.4 20. 20.0 20.0 O 0.0 0 0.0 0.C o
5-Clouds, Dust, etc. C C 6.3 u.0 U.0 0 4.0 6.0 ρ 0.0 0 0.0
6-Insuffic. Into. C G.v 0.0 9 0 6.0 6.0 00 0.6 O 0.0 3 17.6 17.6
7-Psychological 0 C 0.0 60 0 0 0.0 1 - 11.1 O
8-Unknown 1 1 000 0∂ 70.0 0 0.0 6.0 4.0 C.0 0 3 3 33.3 33.3 33.3 7 7 41.2 0.0
9-0ther 0 00 0.0 0 00 0.0 1 - - 11.1 11.1 1 / 5.9 5.9
Total 41 5 80.0 20.0 100 — 100.0 100.0 0.0 100. 6 3 9 66.7 33.3 33.3 100. 15 2 17 88.2 11.8160. 11.8160.
SEPTEMBER OCTOBER OCTOBER NOVEMBER DECEMBER
Per Cent Number Per Cent
Evaluation Evaluation Certain Doubtul Total Doubthu Doubthul Total Doubtful Doubtful Doubtful Total Doubtful Total Certain Dou btful Total
0-Balloon 0 5.9 0.0 - 4.2 1 / 1 6.2 0 - 9.1 9.1
1-Astronomical 2 2 1 3 11.8 11.8 5.9 17.7 6 1 7 4.2 29.2 8 4 12 12 50.0 25.0 25.0 75.0 / / 18.2 9.1 27.3 27.3
2-Aircraft / 0 - 5.9 4 6 16.7 8.3 25.0 0 2 12.5 0.0 4 4 36.4
3-Light Phenom. 0 0 0.0 O 0.0
4-Birds 0.0 00 O 0 0.0 0.0 0
S-Clouds, Dust, etc. 0 0.0 2 ② 0 0.0
6-Insuffic. Into. 0 2 11.8 0.0 1 - 6.2 0.0 6.2 9.1
7-Psychological 0.0 O 0.0 9 0 0 1 9.1
&-Unknown 8 47.1 9 9 37.5 0 ρ.0 / 0 - 9.1 0.0 9.1
9-0ther 0 2 11.8 1 / 4.2 0.0 4.2 0.0 0
Total 16 1 17 94.1 59 100. 21 3 24 87.5 12.5 100. 11 5 16 68.8 31.2 100.10 1 11 90.9 9.1 100
--
-
121
-

-
-
TABLE A17 EVALVATION OE UNIT SIGHTINGS BY MONTH OF YEAR 1952
-
JANVARY FEBRUARY MARCH APRIL
Number Per Cent Number Per Cent
Evaluation Certan Doubthul Certain Doubtful Total Certan Certain Total Totai Certain Doubtful Tota
0.Balloon / 0 6.7 0.0 0.0 5.6 1 4 12.5 2 16.7 3 3 6 3.3 3.3 6.6 I
1-Astronomical 4 26.7 26.753.4 4 5 22.2 5.6 27.8 / 0 1 4.2 0.0 15 15 16.5 0.D 16.5
2-Aircraft 0 0.0 0.0 2 4 11.1 22.2 3 2 5 12.5 8.3 20.8 13 7 20 14.3 7.7 22.0
3 Light Phenom. 0 0.0 00 0 0.0 D 0 1 1.1 1.1
4-Birds 0 0.0 e.e 0 0.1 C / 4.2 0.0 3 4 3.3 1.1 4.4 1
5 Clouds, Dust, etc. C 0 0.0 / 4.2 D 0 Q 0.0
6 Insuffic. ino. C C 0.0 0 / 5.6 0.0 0 4.2 10 10 11.0
7.Psychological 2 13.3 13.3 0 0.0 0 0.0 1 - 1.1 1.1
-Unkno wn 2 2 13.3 5 27.8 0.0 4 16.7 0.0 32 35.2 0. 0 35.2 -
30te 2 0.0 13.3 0.0 11.1 6 7 4.2 25.0 29.2 0 2 0.9 2.2
Total 11 4 15 73.3 26.7 15 3 1883.316.7 100. 141024 58.3 41.7 100.80 11 91 87.9 12.1
1
MAr TUNE JukY AUGUST -
Number Per Cent Per Cent
Evalsation Doubthu! Total Certain Doubtful Total Doubthul Dou btful
0-Balloon 1j 4 15 12.5 4.5 17.0 21 6 27 13.0 3.7 16.7 A 60 47 127 12.2 7.2 19.4 36 39 75 10 3 11.2 215
1-Astronomical 14 2 16 15.9 2.3 18.2 24 17 41 14.9 10.6 25.5 90 30 120 13.7 46 18.3 41 25 66 11.7 7.2 18.9
2-Aircraft 12 12 24 13.6 13.6 272 26 36 16.1 7.5 23.6 97 73 170 14.8 11.1 259 41 34 75 11.7 9.7 21.4
3-Light Phenom. 3 0 3 0 0 3.4 1 0.6 0.0 .6 12 4 16 1.8 2.4 5 6 /1 1.4 1.7 3.1
4-Birds 0 0 00 0.0 0.0 0.0 3 / 4 0.5 0.2 0.7 0
5-Clouds, Dust, etc. 2 2.3 0.0 0 0 00 0.0 0.0 / / 0.2 0.2 0.4 0.4 0 0.3 0.3 0 3
6-Insuffic. into. 6 6 6.8 0.0 0 0 1 18 0.0 11.2 11.2 68 68 10.4 0.0 32 0 32 32 9.2 9.2 - -
7-Psychological l 0 0.0 0.0 4 4 2.5 2.5 5 14 1.4 1.4 0.8 8 22 22 8 / / 9 2.3 2.3 0.3 0.3 2.6 2.6
8-Unkmown 8-Unkmno wn 14 0 14 15.9 26 16.1 16.1 0.0 123 23 123 18.8 0.0 67 67 19.2 19.2
9-0ther 7 / 8 8.0 1.1 9.1 5 6 3.1 0.6 3.7 3.7 11 11 / 12 1.7 0.2 1.9 9 4 13 19 9 4 13 2.6 —
Total 69 19 69 19 8878.4 21.6 100.125 36 88 78.4 21.6 100.125 36 161 77.6 22.4 100 100 494 162 656 75.3 75.3 24.7 100.239 110349 100.239 110 349 68.5 68.5 31.5 100.
SEPTEMBER OcTOBER NOVEMBER DECEHBER DELEHBER
Number Number Per Cent
Evaluation Doub thul Cestain Doubtful Certain Doubthul Total Dou biful Total
0-Balloon 0-Balloon 4 4 11 11 15 2.7 7.5 10.2 3 9 12 12.7 16.9 2 8 10 3.7 14.8 185 18.5 0 2 2 0.0 0.0 4.2 4.2
1-Astronomical 22 9 31 15.0 15.0 61 6 21.1 21. 10 19 14.1 14.1 12.7 26.8 26.8 5 1θ 18 9.3 9.3 18.6 18.6 9 9 7 7 16 16 18.7 18.7 14.6 33. 33.
2-Aircraft 9 31 40 6.1 21.1 272 4 15 15.5 3 6 5.6 11.2 / 11 12 2.1 22.9 250
3-Light Phenom. 2 3 0.7 1.4 2.1 0 4 4 5.6 2 1 3.7 1.9 5.6 / 0 1 2.1 0.0 21
4-Birds 2 3 7 14 2.1 1 2 1.4 1.4 2.8 0 0.0 0 0.0
5-Clouds, Dust, efc. / 0.7 0 - 0.0 1.4 2 2 3.7 0 0.0
6-Insuffic. into. 12 12 8.2 0.0 8.2 4 5.6 4 7.4 3 0 3 6.2
7-Psychological 1 07 0.7 0 0.0 , 1 0.0 1.9 D 0 0 0.0
&- Unkne wn 3.3 33 224 22.4 /1 0 11 155 0.0 15.5 16 0 16 29.6 29.6 11 22.9 0.0 22.9
9-0ther 8 4.1 1.4 5.5 2 3 2.8 4.2 3.7 0 3 6 2 0.0 6.2
Total 8958 1H7 60.5 39.5 36 71 49.3 50.7 35 19 54 64.8 35.2 28 20 48 58.3 41.7 100.
122

The improvements were suggested and confirmed by members the panel
of consultants connected with this project.
The original form was evolved by the panel of consultants as their
first work on this project. It was intended to allow the start of the reduc-
reports, each succeeding form was put to use as soon as it was developed
and approved. Accordingly, experience was obtained with each form in
relation to past
and completeness of the later reports included in this study.
5

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TABLE A 18 EVALVATION Of OBJECT SI6HTINGS BY MONTH OF YEAR ALL YEARS
TANVARY FEBRUARY MARCH APRIL
Number Number Per Cent
Evaluation Total Certan Doubtful Doubthul Certain Tota
0-Bailoon 3 2 5 43 72 6 10.9 0.0 10 96 2.4 12.0 7 2 9 5.5 1.6 7.1
1-Astrononical 15 16 31 22.4 22 443 11 23 20.0 21.8 41 8 12 10 2.2 14.5 12.0 26.5 11 3 15.0 2.4 17.4
2-Aircraft 6 3 9 8.6 4.3 12.7 5 10 9.1 91 18.2 5 7 15 9.6 8.4 18.0 20 7 27 15.7 5.5 21.2
3-Light Phenom. o0 ae O 00 0.0 0 ad 0.0 a0 / 0 1 0.8 0.0
4-Birds 0.D 0.0 e 20 0 3 3.6 00 36 3 1 4 2.4 08 3.2
5-Clouds, Dust, etc. 0.8 0.0 O 0 1 ao 12 1.2 0
6-Insuffic. into. 8 11.4 11.4 3 5.5 a0 5.5 0 10 12.0 0.0 21 16.5 165
7.Psycho logi cal 2 2.9 2.9 0 00 0.0 0 2 1.6
8-Unloto wm 9 129 00 129 6 6 10.9 0.0 10.9 13 0 13 15.7 39 30.7
S-0ther 5 1 6 7.1 1.4 8.5 7 0 7 12.7 0.0 12.7 / 8 9 1.2 96 10.8 2 0 2 16 1.6
Total 48 22 7068.6 31.4100.38 17 5569.130.9100. 55 28 83 66.3 53.7 114 13 127 898 10.2 100.
MAY JUNE JuLr AVGUST
Number Per Cent
Evaluation Total Doubtful Certain Dou btful
G-Balloon 17 J 20 13.2 2.3 15.5 28 5 33 15.3 2.7 18.0 74 41 115 11.6 6.4 180 39 78 9.6 96 19.2
1-Astronomical 22 6 28 17 1 4 7 21.8 22 39 9.3 21. 3 58 38 96 9.1 6.0 15.1 43 45 88 106 11.1 217
2-Aircraft 17 13 30 13.2 10 1 233 28 12 40 15 3 6.6 21.9 94 72 166 14.7 11.3 26.0 47 35 82 11.5 8.6 20.1
3-Light Phenom. 3 2 5 2.3 1.6 3.9 / 0.5 1.0 13 4 17 2.0 0.6 2.6 6 6 12 1.5 3.0
4-Birds 0 2 G0 Gel 16 1.6 00 00 0.0 0.0 3 3 6 0.5 1.0 0
5-Clouds, Dust, etc. 2 0 a.0 0.0 16 1.6 0 0.0 / 2 0.2 04 0.4 / 0.2
6-Insuffic. Into. 16 16 2 12.4 12.4 0.0 12.+ 22 22 0 0.0 12.0 74 74 11.6 40 40 9.8
7-Psychological C 0 0 0.0 0.0 0 6 3.3 0.0 8 8 16 1.3 1.3 2.6 10 1 11 2.5 0.2 2.7
&-Unknown &-Unknown 18 C 18 14.0 14.0 33 0 33 33 18.0 0.0 0.0 18.0 121 0 121 19.0 19.0 79 79 19.4 0.0 194
9-0ther 9-0ther 6 2 8 4.7 1.6 6.3 71 71 I 3.8 0.5 0.5 4.3 24 / 25 3.8 0.2 4.0 /1 1/ 5 16 16 2.7 2.7 1.2 3.9
Total 10128 129 10128 129 783 21.7100.147 36 /838 78321.7100.147 36183 80.3 19.7 80.3 19.7 100.470168638 100. 470168 638 73.7 26.3 1ee 275132407 67.6 32.4 100. 32.4100.
SEPTEMBER OCTUBER OCTLBER NOVEMDER NOVEMOER DECEMBER DECEMBER
Number Per Cent Per Cent
Evaluation Certain Total Doub tful Doub tful Certain Doubtful Doubtful Doubttul Doubttul Dou btful Dou btful Total
G-Bailloon G-Bailoon 6 12 18 36 3.6 7.2 108 8 12 20 20 6.4 6.4 96 16.0 5 9 14 4.7 4.7 85 13.2 6 5 11 5.7 48 48 10.5
1-Astronomical 18 8 9 9 27 10.8 10.8 54 5.4 16 162 15 18 33 12.0 14.4 144.4 264 2 64 21 15 36 19.8 142 142 34.0 34.0 18 16 344 34 17.1 17.11 15.2 15.2 32.3 32.3
2-Aircraft 13 27 40 7 8 163 24.1 9 1/ 20 7.2 8.8 16.0 11 6 17 10.4 5.7 16.1 7 18 67 10.5 17.2
3-Light Phenom. / 2 .3 0.6 1.2 3 0.8 1.6 2.4 3 4 2.8 0.9 3.7 O / 1.0 0.0 1.0
4-Birds 2 3 06 1.2 1.8 2 4 1.6 3.2 0 00 0.0 0 0.0
5-Clouds, Dust, etc. / 06 06 0 / 0.8 2 0.0 1.9 1.9 0
6-Insutfic. into. 19 11.4 0.0 114 10 00 8.0 0 7 6.6 0.0 9 8.6
7-Psychological 3 0 1.8 0.0 18 / 0.8 0.0 0.8 1 / 0.9 2 2 19 1.9
B-Unkuno wn 42 42 25.3 0.0 25.3 30 0 30 24.9 24.0 21 19.8 19.8 22 21.0 0.0
9-0 ther 8 2 10 48 1.2 6.0 2 1 3 16 0.8 2.4 4 0 4 3.8 0.0 0 8 0.0 7.6
Total 111 55 166 66.933.1 100.78 47 125 62.4 37.6 100. 73 33 106 68.9 31.1 100. 73 32105 69.5 30.5100.
123

-
-
TABLE A19 EVALVATION OF ORJECT By MONTH 1947
-
JANVARY FEBRVARY MARCH APRIL
Number Per Cent Per Cent
Evaluation Certann Doubtful Yotal Total Doubtful Certain Doubtful Total Certain Doubthul
G Balloon
1·Astronomical
2.Aitcraft
3-Light Phenom. DATA
4-Birds -
5 Clouds, Dust, etc.
6 Insuffic. Into.
7-Psychological N
8-Unkno wn 1
9-0ther
Total
1
MAY JUNE JuLr AUSUST
Number Per Cent 1
Evaluation Certain Doubtful Total Doubtful Total Certain Total Doubthil Total Doubtful Dou btful
0-Balloon 1 - 77 7.7 6 15.0 0.0 15.0 0 0 0.0
1-Astronomical 0 , 1 0.0 7.7 2 3 5 5.0 7.5 12.5 2 100 10.0 20.0 |
2-Aircraft 2 0 15.4 0.0 0 2 5.0 5.0 ( 0.0
3-Light Phenom. 0 0 e.1 1 - 2.5 0.0 2.5 0.0
4-Birds 0 0.0 0 0 0.0 00 0.0 2
S-Clouds, Dust, etc. 2 2 0 C.0 C.O 0.d 0.9 0.0 0.0 0.0 0 00 00
6-Insuffic. info. 3 0 3 23.1 231 0.0 6 15.0 2 200 -
0.0 0
7.Psychological 1 .0 .0 1 77 77 7.7 0 2 5.0 0 0.0 00 0.0
8Unkuo wn 8Unkno wn 4 0 4 308 0.0 0.0 30.8 30 8 20.0 20.0 6 600 0.0600 60.0
9-0ther 1 / 1 7.7 10 10 25.0 0.0 25.0 0 0.0
Total 12 12 1 1 13 923 92.3 7.7 33 7 40 82.5 17.5 100 9 10 90.0 10.0400. 10.0 2VOD.
SFPTEMBER OCTOBER NOUEMBER DECEMBER DEcEMBER
Per Cent Per Cent Number
Evaluation Doubtful Total Certain Doubtful Certain Totai Totai Doubthul Dou btful Total
G-Balloon 0-Balloon 0 2 00 0.0 8 0.0 0 0 00
1-Astronomical 1-Astronomical / - 200 1 2 3 16.7 16.7 50.9 1 1 33.3 33.3 333 66.6 0 0 2 1001 0.0 1000
2-Aircraft 0 00 q 0.0 0 0.0 O.C 0
3-Light Phenom. 0 0.8 0.0 0 0 1 33.3 00
4-Birds 0 0.0 ρ.D 0 0 0.0 a0
5-Clouds, Dust, etc. 0 0 0.0 00 0 ao 0.0
6-Insuffic. into. / - 2001 0.0 200 0 0.0 ed 0
7-Psychological 1 C 200 1 0 - 167 16.7 0 a0 0.0 0.0 0.0
&-Unkunown 0 40.0 0.d 40.0 2 33.3 c.0 O 0 ad 0 00 0.0 0.0
9-0ther 0 0.5 0.0 0.0 0.P a 0 0.0 0 00
Total 0 5 1000 0.0 100 4 2 6 66.7 33.3 100 3 66.7 333100. 100.0 0.0 100.
124

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TABLE A20 EVALVATION OBJECT BY MONTH OF YEAR 1948
JANVARY EBRVARY MARCH AeRI
Number Number Per Cent
Evaluation Certan Certain Total Doubtful Tota
0-Balloon 0 0 ( 0.0 00 0.0 0.0 2 2 20.0 20.0
1Astronomical 4 3 7 40.0 30.0 700 3 5 60.0 100.0 2 0 28.6 0.0 28.6 0 2 0.0 20.0 20.0
2-Aircraft 0 0.0 00 0.0 0d 00 3 30.0 300
3-L.ight Phenom 2 0 0.0 O 00 0 0.0 0.0
4-Birds 0 0.d 00 O C.D 0.0 0 0.0 - 0 1 10.0 10.0
5-Clouds, Dust, etc. 00 O C o.1 0.0 0 0.0 00
Ginsuffic inlo. 3 2 200 0.0.20.0 0 00 2 28.6 0.025.6 - 10.0 0.0
7-Psychologi cal 0 0 00 0.0.0.0 0.0 00 e 0
8-Unkusto wn O 0 0.0 0.0 1 1 14.3 0.014.3 1 0 10.0 10.0
30mer 0 1 10.0 10.0 0 l0 00 2 0.0 28.6 78.6 0.0
Total 6 4 10 60.040.0100. 3 2 60.040.0400. 5 2 7 71.9 28.6400. 9 80.0 20.0 100.
MAr JUNE Juer AUGUST
Number Per Cent Num ber
Evaluation Doubtful Total Doubtful Certain Doubtful Dou btful
0-Balloon i 0 0.0 0 2 667 0.0 2 1 3 8.3 4.2 12.5 200 20.0
1-Astronomical / 2 10.0 10.0 20.0 0 0 00 0.0 0.0 3 7 12.5 16.7 29.2 4 400
2-Aircraft , 0 1 10.0 0.0 10.0 0.0 0.0 4 6 16.7 8.3 250 I 2 200
3-Light Phenom. 2 0.0 20.0 - 0.0 33.3 1 0 / 4.2 0.0 4.2 0 00
4-Birds ! ! 1 0.010.0 10.0 10.0 0 0 0.0 I 0.0 4.2 4.2 00 0.6
5-Clouds, Dust, etc. 0 C C 0.0 00 2 θ 0.0 D 0
6-Insuffic. into. 3 C 3 30.0 ae 6e 30.0 80.0 0 ao ao a0 a0 9 0.0 ad ad 00 I 0 1 / 10.0 0.0
7-Psychological 00 0.0 0 0.0 0 0.0 0
&-Unknown &-Unkno wn 1 0 I 10.0 0.010.0 0 0.0 5 5 20.8 0.0 208 205
9-0ther 0 O 00 00 0.0 0 0.0 0.d o 0.0 L 0 1 4.2 4.2 1 00 10.0
Total 6 410 6 410 60.040,0100.2 I 1 3 66.7 33.3100 16 16 8 24 66.7 33.3100. 4 6 10 40.060.0100. 66.7 33.3100. 4  6 10 40.060.0100.
SEPIEMRER OcTeBER OcTOBER NOVEMBER NOVEMBER DECEMBER DECEMBER
Number Per Cent Per Cont Per Cent
I Evaluation Evaluation Certan Certain Doubthul Doub thul Total Doubtful Certain Doubtful Total Dou btful Dou btful
0-Balloon 2 33.3 33.3 333 333 3 6 15.0 150 30.0 L / 2 5.9 11.8 17.7 ? 0 2 10.5 10.5 0.0 10.5
1-Astronomical 1-Astronomical 0 1 00 16.7 16.7 16.7 1 3 3 5.0 15.0 20.0 7 / 8 91.2 91.7 5.9 47.1 47.1 2 2 4 4 6 10.5 21.1 31.6
2-Aircraft 1 0 167 0.0 16.7 1 0 / 5.0 ^ 5.0 4 4 0.0 23.5 5.3 5.3
3-Light Phenom. 0.0 1 / 5.0 00 5.0 0 O 0.0 0.0 o
4-Birds 0 0 0.0 1 / 2 5.0 5.0 10.0 O 0.0 00
5-Clouds, Dust, etc. C 0.0 0 0 0.0 0.0
6-Insuffic. Info. 0 0 0.0 4 20.0 00 20.0 - 5.9 00 5.9 3 15.8 15.8
7-Psychological / 0 1 16.7 0.0 20 0.0 0 0.0
&-Unknown 2 10.0 0.0 10.0 0 0.0 0.0 0 5 263 0.026.3
9-0ther , 16.7 16,7 0 0.0 0.0 1 5.9 5.9 2 10.5 0.0105
Total 2 4 6 33.3 667100.13 7 20 65.0 35.0100. 14 3 17 82.4 17.6100.14 5 19 73.7 263100.
125

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-
TABLE P21 EYALVATION OF OBJECT SIGHTINGS By MONTH OF YEAR, 1949
-
JANVARY FEBRUARY MARCH APRu
Per Cent Per Cent Number
Evaluation Certan Doubtul Total Doubtul Totai Total Certain Doubtful Total Certain Doubtful Doubt ful Doubtul
0-Balloon 0 ! 1 00 62 6.2 0 2 18.2 0 0.0 1 5.6 0.0 I
1-Astronomical 5 175 312 43.7 2 l 18.2 36.4 546 4 9 13 21.1 47.4 685 6 7 33.3 5.6 38.9
2.Asrcraft 4 1 5 25.0 312 - 0 9.1 9.1 2 10.5 0.0 0 3 11.1 0.0 11.1
3-Light Phenom. D a.0 00 0.0 O ea 0 0 0.d 0 0.0 0.0
4-Birds 0 0.0 0 0 2 10.5 0.0 10.5 0.0 1
5 Clouds, Dust, etc. 00 0.0 0 00 DD O 00 0.0 Q O 0
6 Insuffic. info. 2 0 0.0 - I 7.1 0.0 9.1 0 — 5.3 00 5.3 5 27.8 278
7.Psychological 0 00 0.01 0.0 od 0 0.0 ao
& Unknown 2 /2.5 0.0.125 0 0 0.2 0.0 1 5.3 53 3 J 16.7 0.0 16.7 -
9-0ther 1 6.2 0.0 1 9.1 0 0.0 0 0.0
Total 9 7 16 56.2 438100 11 63.6 364100. 10 9 19 526 474100. 17 1 18 94.4 5.C 100
-
Mar TUNe Tuer AVGUST 1
Number Per Cent
Evaluation Doubtful Doubthul Total Certain Dou btful Total
G-Balloon 4 0 4 13.8 0.0 1 8.3 8.3 / 0 1 6.7 0.0 0.0
1-Astronomical 6 2 8 20.7 6.9 27.6 - 3 4 8.3 25.0 33 0 0.0 26 26.7 16 17 4.0 64.0 680 •I
2-Aircraft 4 7 13.8 10.3 24. I 1 2 8.3 16.6 0 3 3 0.0 20.0 4.0 80 12.0
3-Light Phenom. 0 0.0 0 0
4-Birds O 0 0.0 0 0.0 oD 1 1 - 6.7 6.7 o 00
S-Clouds, Dust, etc. S-Clouds, Dust, etc. O o 0.0 00 0 0 0.0 1
6-Insuffic. info. 6-Insuffic. Info. 5 5 17.2 00 2 0 167 0.0 167 16.7 0 3 20.0 0.0 20.0 2 8.0 8.0
7-Psychological 0.0 00 1 1 O 1 8.3 0 0.0 0.0 2 0 8.0
8-Unkno wn 5 0 5 5 17.2 0.0 17.2 1 e 1 8.3 8.3 2 13.3 00 / 4.0 4.0
9-0ther 0 0 0.0 1 0 1 0 1 8.3 0.0 1 6.7 00 6.7
Total 24 5 29 29 82.8 172 100. 8 4 12 100. 412 66.7 33.3100. 33.3 7 8 15 46.7 53.3 18 25 28.0 729100 729100.
|
SEPTEMBER OCIOBER OCTOBER NOVEMBER DECEMBER ECEMBER
Number Per Cent Per Cent Number
Evaluation Evaluation Certain Doubtful Total Doubtful Doubtful Total Certain Doubthul Certain Dou btful Dou bitful Total
G-Bailoon / 1 33.3 0.0 0 0 8.3 / I 6.7 0.0 67 67 1
1-Astronomical 0 0 0.0 0.0 1 - 3 11.1 44.4 44.4 4 8 33.3 33.3 ac ac 2 4 6 13.3 13.3 26.6 26.639.9 399
2-Aircraft O 0 0.0 0.0 - 1 3 11.1 111 22.2 , 1 8.3 8.3 2 2 13.3
3-Light Phenom. 0 00 0.0 0 0.0
4-Birds 0.0 0 0 0 0.0 00 00
5-Clouds, Dust, etc. 0 0.0 0 0.0 0 00 00
6-Insuffic. into. 0 66.7 2.0 0 2 ao 22.2 0.0 00 1 6.7 0.0
7-Psychological 0 0.0 0.0 0.0 0 0
& Uniknown 0 0.0 0.0 0 1 111 11.1 2 2 16.7 16.7 3 3 20.0 00 20.0
9-0ther 0 0.0 0 0.0 ? 2 13.3 13.3
Total 0 3 100.0 0.0 100. 5 4 9 55.6 444400. 6 12 50.0 50.0 100. 15 73.3 26.7
126

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TABLE A22 EVALVATION OF OBJECT SIGHTINGS B4 MONTH YERR 1950
JANVARY FEBRUARY MARCH APRIL
Per Cent Number
Evaluation Certan Doubtful Total Certain Total Certain Doubthul Doubtful Tota
0-Balloon 0 00 0.0 0.0 2 0 3 15.4 154 5 1 6 17.9 3.6 21.5 / 1 7.1 7.1
1-Astronomical 5 3 8 385 231 61 6 2 3 5 15.4 23.1 38 4 143 0.0 14.3 / 0 1 7.1 0.0
2-Aircraft 0 154 15.4 2 15.4 0.0 3 4 7 19.7 143 25.0 0 2 14.3
3-Light Phenom. 2 C 00 0 0 0 0.0 0.0
4-Birds C 0.0 a9 O 0 0 0.0 0.0 0
5-Clouds, Dust, etc. a O 0.0 0 00 0 0.0 0.0
6 Insuffic into. 7.7 20 I 0 1 0.0 7.7 6 21.4 214 O 3 214 od 21.4
7-Psychological 0 0.0 0.0 a 00 00 1 0 7.1 7.1
&-Unkno wn 1 77 0.D 7.7 1 0 0.0 0 4 143 0.0 14.3 6 6 42.9
5-0ther J 0 1 7.7 7.7 C 2 15.4 3.6 3.6 0 0.0
Total 767 23.1 100. 10 3 13 769 23.1 100. 22 6 28 786 214 100 14 014 10100.0400.
MAr. JUNE JULY AUGUST
Number Per Cent
Evaluation Total Certain Doubthul Doubtful Certain Doubtful Total Doubthul Total Dou btful
G-Balloon 0 1 0.0 14.3 4 66.7 67.0 - 0 67 00 6.7 2 2 10.0 0.0 100
1-Astronomical 1 / 2 14.3 143 28.6 0 O 0 0.0 - 6.7 1 4 5 5.0 20.9 25.0
2-Aircraft 0 0.0 0.1 0.0 4 - 26.7 67 33.4 4 I 5 20.8 5.0 25.0
3-Light Phenom. G 0.0 O 0 00 D 0 0.0
4-Birds 4-Birds 0 U U.0 0.0 Q 0 o O 0 0.0 0 0.0 V.V 8.0 0.0 O
5-Clouds, Dust, etc. 0 3 0.0 0.0 e 0 00 a Q
6-Insuffic. info. 6-Insuffic. info. 2 28.6 286 286 0 0.0 0.0 0.0 4 0 4 26.7 267 267 2 ? 10.0
7-Psychological 7-Psychological C 00 0.0 00 0 0 0.d 0.0 0.0 D.D
& Unknown 0 - - 14.3 0.0 2 2 33.3 0.0 33.3 4 4 4 26.7 5 0 5 25.0 25.p
9-0ther 1 1 14.3 0 0 0.0 0.0 0 8 8 ρ 0.0 5.0 5.0
Total 5 2 7 71.4 28.6 100. 6 0 100.0 0.1 0.1 100.141 100.141 15 9336.7 93.36.7 100.15 5 20 75.0 250,100- 250100-
5 EPTEMBER EPI EMBER OCIOBER NOVEMBER DECEMBER DECEMBER
Number Per Cent Per Cent
Evaluation Doubtful Doub thu Total Certain Doubtful Certan Doubthul Doubtful Total Certain Dou btful Total
0-Balloon 0-Balloon 0 O 0 0.0 00 / 1 10.0 0.0 10.0 16.7 16.7 2 3 3 5 5 11.8 17.6 29.4 29.4
1-Astronomical 5 0 385 38.5 - / 2 10.0 20.0 200 0 0.0 0.0 0.1 4 6 23.5 11.8 353
2-Aircraft C 2 15.4 1Ku A - 1 0.0 0 19.0 10 10.0 LA0 4 1 16.7 /6.7 33.4 321 / 0 5.9 0.0 00
3-L ight Phenom. C 2.2 0.0 90 0 0 0.0 00
4-Birds 0 2.0 0 0.0 0 0.0 0.0
5-Clouds, Dust, etc. J O 0.0 0 0.0 0
6-Insuffic. Info. 3 0 3 23.1 0 00 0.0 1 8.3 8.3 - 5.9 0.0 59
7-Psychological 0 0 0.0 0 00 0.0 1 5.9 59
&Unknown 3 0 231 0.0 23.1 6 600 60.0 4 4 33.3 00 33.3 2 D 2 11.8 0.0 118
9-0ther 0 0 0.0 8.3 , 5.9
Total 13 100.0 0.0 100. 8 2 10 80.0 20.0100.10 12 83.3 16.7100. 12 5 1770.6 29.4100.
127

-
-
TABLE A23 EVALVATION OE By MONTH
-
JANUARY FEBRUARY MARCH APRIL
Humber Per Cent Number Per Cent
Evaluation Doubtful Certan Doubthul Certain Total
0-Balloon 2 1 3 111 56 16.7 - 1 11.1 11.1 0 00 0.0 0.0 00 -
1-Astrononical 1 3 56 1.1 2 2 0.0 22.2 22.2 - 16.7 16.7 33.4 0 0 00
2-Aitcraft 0 2 2 2.0 111 11.1 3 3 0.0 33.3 - / 16.7 1 0 0.0
3-Light Phenom. 2 0.d 00 0.0 a 0.0 0 a0 0 0.0 a0
4-Birds 0 C c0 O C 00 0.0 00 0 0.0 -
5Clouds, Dust, etc. C 0 23 c.ol O 0.0 2 0 00 0.0 00
6insuffc. into. 5 0 5 278 27.8 0.0 0.0 0 2 66.7 ad
7-Psychological 0.0 00 0 0.3 od 0
&-Unkuno wn 0 4 22.2 22 1 111 0.0 11.1 0 3 50.0 50.0 00 -
90ther , 1 5C 00 5.9 2 2 22.2 0.0 0 0 00 0.0
Total .3 5.18 72.2 27.8100 4 5 9 44.4 55.C100. 2 6 66.7 33.3 100. 3 0 3 100.0 0.0
1
MAr TUNE Juer AUGuSt 1
Number Per Cent
Evaluation Certain Doubtful Total Doubthu Dou biful
0-Balloon 1 0 — 25. a0 25.0 C C 0.0 R0 0 0.0 / 2 6.2 12.4
1-Astronomical C 0.0 1 2 3 12.5 25.0 375 6 0 0 0.0 •|
2-Aircraft 1 25.0 25.0 - - 100.0 0.0/00.0 1 125 0.0 , 0 6.2 0.0 6.2
(3-Light Phenom. i 0 0.0 C 00 0.01 Q 0 0.0 2 6.2 6.2 124
4-Birds 1 1 C.0 25.025.0 00 0 0 0.0 0.0 ao 00
5-Clouds, Dust, etc. C C 0 0.9 0 0 a0 0.0 00 0.0 Q 00
6-insuffic. info. C 6.0 0.0 0 0 0.01 00 0.0 3 18.8 /6.8 16.8
7.Psychological 0 00 0.0 0.0 1 1 12.5 0.0
8-Unknown 8-Unknown 1 / 25.0 C.025.0 0 0 0.0 2 25.0 0.0 250 7 7 7 43.8 43.8
9-0ther C 0 00 0.00.0 00 0.0 0.0 / 1 12.5 1 / 6.2 6.2
Total 3 1 4 75.0 25.0100. 1 0 1 100.0 0.0 100. 0 1 100.0 0.0 100. 5 8 625 37.5100 14 2 16 16 87.5 12.5 100. 100
SEPTEMBER OLIOBER NOUeMBER NOUEMBER DECEMRER ECEMBER
Per Cent Number
Evaluation Evaluation Doubtul Total Doubtul Certain Doub ful Total Doubtful Doubtful Total Doubthul Doubtful Total Certain Dau btful Dou btful
0-Bailoon C 6.7 0.0 67 1 / 1 5.3 0.9 0 8.3 8.3 0 10.0 10.0 0.0
1-Astronomical 1 1 3 13.3 6.7 20.0 5 5 - - 6 6 26.3 5.3 31.6 31.6 4 4 8 8 33.3 66.6 2 1 3 10.0 30.0 30.0
2-Aircraft / C 1 6.7 0.0 6.7 4 0 4 2/.1 21.1 2 2 167 0.0 16.7 3 300 30.0
3-Light Phenom. C 0 0.0 9 0 0.0
4-Birds C 0.0 0 0 0.0 8.0 0 O 00
5-Clouds, Dust, etc. C 0.0 0 0 00 0.0 a0 0.0 0 00
6-insuffic. into. 2 0 2 13.3 0 0.0 / 8.3 8.3 / 1 10.0
7-Psychological 0.0 00 0.0 0 0 1 - 10.0 10.0
&-Unknown 6 C 40.0 0.0 40.0 8 8 42.1 0 0 0.0 20 1 10.0 10.0
9-0ther 1 2 13.3 0 0.0 0.0 0 0 10.0
Total 14 115 93.36.7 100.181 19 947 5.3100.7 5 /2 58.3 41.7 100. 9  1 10 900 10.0 100.
128

TABLE A24 EVALVATION OF OBJECT SIGHTINGS MONTH YEAR, 1952
JNVARY F FPRUARY MARCH Aery
Number Per Cent Number
Evaluation CertainDoubtful Doubtful Certan Certain Total Certain Doubtful Total
G Balloon C 77 0 2 7.7 1 5.9 0.0 1 4 13.0 4.3 /7.3 3 2 5 3.7 2.4 6.1
1-Astronomical 3 6 231 231 46 2 4 1 5 23.5 59 294 / 0 4.3 0.0 4.3 12 14.6
2-Aircraft 0 0 0.0 2 3 4 8 11.8 23.6 3 5 13.0 8.7 21.7 12 7 19 14.6 8.5 23.1
3-Light Phenom. 60 o.d 00 C 00 0 ad 0.0 0 1 1.2 0.0
4-Birds c C ad 0.01 0.6 J 0 0.0 0.0 Q0 1 0 - 4.3 2 / 3 2.4 1.2 36
5 Clouds, Dust. etc. C co o.0 0 O 9 1 0.0 4.3 4.3 0 ad 00
6 insuffic. Into. 0 C 0.0 0.0 5.9 O 1 4.3 43 C 10 12.2
7-Psycho fogi cal 2 15.4 C.0 15 4 ad 0.0 0 0 1 0 , 1.2 6.0
8-Unkno wn 2 3 154 154 0 23.5 235 4 174 0.0 17.4 29 0 29 35.4
9.0mer 154 15.4 0 11.8 0.011.81 5 6 4.3 31.7 26.0 2 0 2 2.4 0.0 24
Total 3 13 76.9 23.1 Voo. 4 17 824 17.6/00.14 923 60.9 39.1 100. 72 10 82 87.8 12.2 180
UAr TUNE Juar AUGUST
Number Per Cent Number
Evaluation Certain Doubtful Total Doubthul Dou btful
G-Bailoon 1! 3 14 13.9 38 17.7 20 5 25 13.5 3.4 16.9 64 40 104 11.9 7.5 194 36 36 72 11.0 Ⅱ/ 0 220
1-Astronomical 7 2 16 17.7 2.5 202 21 13 34 14 2 8 23.0 51 25 76 9.5 4.7 142 38 22 C0 117 6.7 184
2-Aircraft 19 21 13.9 12 7 266 24 11 3.5 16.2 7.4 23.6 85 64 149 15.9 11.9 278 40 31 71 12.3 9.5 21.8
3-Light Phenom. 3 3 3.8 0.0 38 1 l /1 4 15 2.1 0.7 2.8 5 0 1.5 1.5 3.0
4-Birds DOITOS 9 c0 0.0 00 0 ao ao 00 00 3 / 4 0.6 02 0.8 O 0.0
S-Clouds, Dust, etc. 2 2.5 a0 250 75 0 0 0.0 1 0.2 0.2 0.4 0 / 00 0.3
6Insuffic. into. 6 6 7.6 00 76 170 17 17 11.5 11.5 0.0 0 61 11.4 0.0 30 0 30 9.2
7-Psychological . 1.0 d 4 c0 4 0 0 4 0.0 0.0 2.7 8 8 5 13 1.5 0.9 2.4 1 / 9 2.5 0.3 0.3 2.8
&-Unknown &Unknown 10 0 0 1( 12.7 12.7260 260 26 26 17.6 176100 176 100 18.7 0.0 0.0 187 60 18.4 18.4
9-0ther 9-0ther 6 1 7 7.6 1 3 89 5 1 7.61.3 89 5 1 6 3.4 0.7 41 11 1 41 12 12 2.1 02 2.3 9 4 13 2.8 1.2 4.0
Total 63 16 79 79.7 20.3 100. 118 30 148 79.720.3 188.395 141 63 16 79 79.7 20.3 100, 118 30 148 79.720.3 188.395 141 536 73.7 26.3 100. 226100 226 100 326 69.3 69.3 30.7
SEPTEMBER OcIOBER OcIOBER NOVEMBER NOVEMBER DECEMBER ESEHBER
Per Cent Number Per Cent
Evaluation Total Certain Total Certain Doubtful Doubtful Total Doubtful
G-Balloon G-Bailloon 4 10 14 3.2 3.2 8.1 113 113 3 9 9 12 4.9 14.8 19.7 19.7 5 5 7 4.0 10.0 14.0 14 0 0 2 0.0 4.8 4.8
1-Astronomical 1-Astronomical 10 7 7 17 17 8.1 8.1 5.6 137 13 6 8 8 14 14 9.8 13.1 13.1 229 229 5 5 10 10.0 10.0 20.0 6 6 11 14.3 14.3 11.9 26.2
2-Aircraft 9 a 27 37 36 31 7.3 73 21.8 218 29 O 9 12 13 4.9 ue 148 19.7 3 6 1 6.0 1 0 SA 12.0 10 10 II 2.4 3.1 23.8 22 o 26.2 2/2
3-Light Phenom. 1 3 0.8 1.6 2.4 0 2 2.0 3.3 2 1 4.0 2.0 6.0 / 0 , 2.4 0.0 24
4-Birds / 2 3 08 1.6 2.4 I 2 16 3.2 0 0 0.0 0.0 aD 00
5-Clouds, Dust, etc. 2 / 0.0 0.8 0.8 1 00 16 1.6 0 2 0.0 4.0 0.0
6-Insuffic. into. 11 0 8.9 8.9 4 4 6.6 4 8.0 0.0 8.0 3 0 3 7.1 0.0
7-Psychological 1 - 0.8 0.0 9.0 / / 2.0 20 0 0 0.0
8-Unkunown 31 0 25.0 25.0 // 0.0 18.0 0 15 30.0 11 11 26.2 O.d
9-0ther 6 1 7 4.8 08 5.6 3 3 3 1.6 49 2 0 2 4.0 4.0 0 7.1 0.0 7.1
Total 74 124 59.7 403188 30 31 61 49.250.8100. 34 16 50 68.0 320 25 17 42 59.5 40.5 100.
129

I
TOBLE A26 EVALUATION OE AU SIGHTINGS 84 SIGHTING RECIABILITY
GROUPS All YEARS -
ENCELLENT GOOD DOUBTFUL POOR
Per Cant Number Per Cent Number
Evaluation Doubtful Total Certan Doubtful Certain Tot
G Balloon 19 13 3.7 6.2 4.2 10.5100 63 163 9.3 59 15.2 100 90 180 27 6.2 13.9 51 24 75 9.7 4.6 18.3
1-Astronomical Y5 30 2814.6 9.7 2Y3 166 110 276 13.5 10.3 25.8 202 138 3%0 15.6 10.6 2.2 63 63 126 120 12.0 210
2-Aircraft v1 19 60 13.3 6.219.5 105 108 2/3 9.8 10.1 199 157 135 292 12.1 10.4 225 51 26 77 9.7 5,0 167
3Light Phenom. 2 0 21 0.6 0.00.610 9 19 0.9 0.8 1.7 15 30 1.2 24 5 0 0.0 1.0
4·Birds 2.20.00.6 0.65 9 0.5 0.4 09 12 3 15 0.9 0.21.1 2 1 3 04 0.2 0.6 -
5 Clouds, Dust, etc. 9 0.0000.0 0.08 10 18 0.7 0.9 1.6 4 3 70.3 02051 0 00 0.0 00
6 Insuffic. into. 12 0 12.3.9 0.03933 033 3.1 0.0 3.1 150 0 15011.6 0.0 11.6103 0 103 19.6 0.0
7-Psychological e 17 2.7 0.6 3.3
8-Unkno wn 108 0 10855.1 0.035.1282 0282264 0.0264203 020315.6 0.015.6 96 96 18.3 0.0 18.3 1
9-0ther 17 0 17 5.5 0.0 5.5 42 11 53 3.9 1.0 49 42 12 543.2 0.9 4.1 11 12 23 2.1 2.3 4.4
Total 244 64 30879.2 20.8 100.254 316 1070 70.5295 100. 906 392 1298 69.8 30.2100, 396 129 525 25.4 24.6100. -
TABLE P26 EVALVATION OE ALL SIGHTINGS BY JIGHTING RELIABILITY
GROUPS 1947
EXCEHENT GooD DOUBTFUL POOR -
Number Per Cent Number Per Cent
Evaluation Certain Total Doubthull Total Doubtful Certain Doubtful Certasn Dou biful
0-Balloon 1 0 5.3 5.3 / 0 , 2.8 00 2.8 3 6.7 2 11.8 0.0 118
1-Astronomical 3 0 15.8 15.8 7 19.4 11.1 305 16 4 20 35.6 8.9 45 6 0 6 35.3 0.0 35.3 •|
2-Aircraft 1 53 5.3 10.6 2 2.8 2.8 5.6 0 0 0 0.0 00 0.0
3-Light Phenom. 0 0.0 00 1 / 28 2.8 0 22 2.2 0.0
4-Birds 0 00 0.0 0.0 0.0 0.00.0
S-Clouds, Dust, etc. 0 8 00 0.0.0.0 0.0 e 0 0.0 0.0 0 D 0.000 0.0.00 -
6-Insuffic. into. 4 0 4 21.0 0.0.210 0.0.2102 2 5.6 5.6 6.6 24.4 2 4.4 0.0 0 6 353 0.035.3 0.035.3
7-Psychological 0 0.0 0.0.0.00 0.0.0.0 2.8 2 7 / 34.4 3 4.4 2.2 66 10 0 1 5.9 00 59
8-Unknown 0 6 316 0.0 316 11 0.0 31.611 0 11 0 11 305 0.0 3a59 30.5t 0.0 305 9 0920.0 0 9 20.0 0.0 20.0 2 0211.8 0.0 11.8 20.0 2 02 11.8 0.0 11.8
9-0ther 3 0 15.8 0.0 16.8 7 0 719.4 0.0 19.4 7 0 2155 0.0 155 0 0.00.0 0.0 0.0 0.016.8 7 0 719.4 00 194 7 0 2155 0.0155 0 0.00.0 0.00.0
Total 18 1 1994.8 5.3100.30 6 36 83.3 16.7100.40 5 45188.9 11.1100. 17 0 17100. 0.0 100. 119 94.8 5.3100. 30 6 3683.3 16.7 100. 40 5 45188.9 11.1 100. 17 0 17100. 0.0 100.
TABLE A27 EVALVATION OF ALL SIGHTINGS BY SIGHTING RELIABILITY EVALVATION OE ALL SIGHTINGS BY SIGHTING RECIABILITY
GROUPS 1948
EXCELLENT Goop DOUBTFUL DOURTFUL POOR POOR
Number Per Cent
Evaluation Doubtul Total Doub thul Certain Doubtful Doubtful Total Dou btful Total
0-Balloon 2 4 83 83 16.6 9 8 8 17 /32 11.8 250 250 6 10 10 16 58 9.7 9.7 15.5 1 0 0 0.0
1-Astronomical 7 5 12 29.2 297204 208 500 600 13 34 20 19.1 191 10.3 101 294 15 26 41 41 14.6 14.6 25.3 25.3 39.9 29.9 1 / 2 10.0 10.0 20.0 20.0
2-Aircraft 2 8.3 0.0 2.3 3 0 3 4.4 9 5 19 8.7 4.9 13.6 2 200 0.0 20.0
3-Light Phenom. 00 0.0 2 / 3 29 1.5 44 0 5 4.9 4.9 0.0
4-Birds / 0.0 4.2 2 3 15 2.9 4.4 1 0 / 1.0 1.0 0 0.0
5-Clouds, Dust, etc. 0 0 00 a 0.00.00.00 0 0.0 0.0
6Insuffic. into. 0 0 00 2 6 2 2.9 0.02.9 14 14 13.6 0.0 13.6 3 30.0
7-Psychological 00 1 11.5 0.0 1.51 0 0.0 0.0 .00
&-Unikno wn 5 S 20.8 14 1420600206 6 0 5.8 0.0 5.8 0 2 20.0 0.020.0
9-0ther 0 0 00 0.0 3 2 5 4.4 2.9 7.3 0 6 6 0.0 5.85.8 10.0 0.0100
Total 16 8 2466.733.3100. 48 2068 70.6 19.4100. 51 5210348.550.5100. 9 1 10 90.0 100 100.
TABLE A28 EVALUATION OF ALL SIGHTINGS BY SIGHTING RELIABILITY
GROUPS. 1949
EXCELLENT Goop DoveTFUL PooR
Per Cent Number Per Cent
Evaluation Cerlann Doubtful Total Certan Doubitful Total Total Certain Doubtful Certain Doubtful
0-Balloon 0 0 00 0.0 5 2 7 6.8 2.7 9.5 10 3 /3 4.9 1.5 64 1.2 0.0 1-2
1-Astronomical 8 16 228 22.8 456 3 36 59 4.1 48.7 528 47 59 106 233 29.2 525 16 29 45 19.0 34.5535
2-Aircraft 0 4 11.4 00 11.4 6 8 14 8.1 10.8 18.9 17 34 8.9 84 16.8 5 4.9 1.2 6.0
3-Light Phenom. 0 0 0.0 00
4-Birds / 0.0 2.9 0 00 4 O 20 0.02.0 0
5-Clouds, Dust, etc. 00 0 0.0 000.0000.0 0.0
Cinsuffic Into. Q 0.0 00.00 0 6 8.1 0.0 021 10.4 0,010.4 9 10.7
7-Psychological Q 0 00 0.0 0 0 00.0 0.0 0.0 3 3 0.0 3.6
&-Unkno wm 9 257 0.0 25.7 8 0 10.8 00 108 21 021 104 0.010.4 18 018 21.5 0.0 21.4
3-0ther 5 514.30.0 183 0 0 0 0.0 0.0 3 0 3 1.5 0.0 1.5 3 0 3 3.6 0.0 3.6
Total 26 9 3574325.7100.28 46 74378 622100.123 7920260.939.1100. 54 30 8464335.7100.
130

TABLE A29 EVALUATION OF ALL SIGHTINGS By SIGNTING RELIABILITY
GRoups 1950
EXCELLENT Goop DOUBTFUL POOR
Per Cent Number Per Cent
Evalustion Certan Doubtful Total Certain Tota
0-Balloon H 0 4 8.2 3 3 5.1 0.0 18 5 23 14.6 41 18.7 8 2 10 10.7 2.7 13.4
1-Astronomical 7 7 14 14.3 14.3 28.6 8 2Y 33.9 13.6 47.5 12 20 9.8 6.5 16.3 10 2 13.3 2.7 16.0
2.Aircraft 4 1 2.0 10.2 6 5 11 10.2 1.5 18.7 17 9 26 13.8 7.3 21,1 12 0 12 16.0 0.0 10.0
3 Light Phenom. e 0 a.0 0 0 0.0 0.0
4-Birds 0 00 0.0 0 0.0
S-Clouds, Dust, etc. 0 0.0 0.0 0
6-Insuffic. into. 4 8.2 1 / 1.7 0 25 20.3 29.3 19 0 19 25.3 0.0
7-Psychological e 00 0.0 0 0 0.0 4 5.3
& Unkno wn 21 42.7 0.0 42.9 12 12 20.3 0.0 22 679 17.9 0 16 21.3
3-0ther 1 2.0 0.0 1 4 1.7 5.1 6.8 3 47 2.4 3.2 S16 2 0 2.7
Total 441 8 49 93.7 16.3 100. 43 16 59 72.9 22.1100. 97 26 123 78.9 21.1 100. 71 4 25 94.7 5.3 100.
TABLE A30 EVALVATION OFALL SIGHIINGS BY SIGHTING RELIABILITY
GROUPS 1951
EXCELLENT 6000 DOUBTEUL POOR
Per Cent Number Per Cent Number Num ber
Evaluation Certain Doubtful Certain Doubtful Total Total Doubtul Doubthuf
0-Balloon 1 0 1 5.5 0.0 5 6 12.2 2.4 14.6 4 3.4 3.4 6.8 2 3 4.7 2.3 7.0
1-Astronomical 3 2 5 16.7 11 27.8 13 5 18 31.7 12.2 43.9 3 4 7 5.2 6.9 12.1 6 12 14.0 14.0 28.0
2-Aircraft / 16.7 5.5 22.2 0 7 17.1 0.0 17.1 2 4 6 3.4 6.9 10.3 3 7 9.3 7.0 16.3
3-Light Phenom. 0.0 e 0.0 7 3 3.4 4.7 5.1 0
4-Birds 4-Birds 00 D 0.1 0.0 0 I 1 2.4 2.4 0 0.0 0
S-Clouds, Dust, etc. SClouds, Dust, etc. 0 0 2.0 0.0 lie le 0.0 0
6 Insuffic. Into. 6 Insuffic. Info. 0 0.0 0 9 9 15.5 15.5 5 5 11.6 0.0 11.6
7-Psychological 0 00 0.0 0.0 1 / 1 2 1.7 1.7 3.4 34 0 1.0
8-Unkno wn 7 7 38.9 36.9 9 0 9 21.9 0.0 0 25 43.1 1/ 11 25.6
9-0ther 1 / 5.5 0 0.0 0.0 2 34 0.8 3.4 5 11.6 11.6
Total 15 3 18 3 18 83.3 16.7 100.34 7 41 82.9 17.1 100. 82.9 17.1 100. 46 1258 12 58 79.3 20.7 33 10 43 76.8 232100 23.2100
TABLE A31 EVALVAIION OE ALL of ALL SIGHTINGS BY SICHTING RELIABILITY RELIABILITY
GROUPS 1952
EXCELLENT EXCELLENT 6000 DOUBTEUL DOUBTFUL PooR
Number Number Per Cent Num ber Per Cent
Evaluation Doubtful Certain Doubtul Doubthul Doubtful Total
0-Balloon 0-Balloon 11 11 11 22 22 6.7 13.4 77 52 129 9.7 6.6 163 163 61 60 121 8.0 7.8 15.8 38 21 59 12.8 7.1 7.1 9.9 /9.9
1-Astronomical 17 9 35 35 194 1a4 4.9 4.9 15.3 110 110 50 160 13.9 6.3 20.2 20.2 109 37 146 14.2 4.8 19.0 24 25 49 8.1 8.4 16.5
2-Aircraft 27 16 43 16.6 1.8 26.4 82 94 176 10.3 11.9 22.2 112 100 212 14.6 13.0 27.6 29 22 51 9.8 7.4 17.2
3-Light Phenom. 2 1.2 0.0 7 8 15 0.9 1.0 1.9 12 9 21 116 1.2 2.8 5 0 1.7 0.0 1.7
4-Birds 0 0.0 0.0 4 1 5 0.5 0.1 0.6 7 3 10 0.9 0.4 1.3 2 3 0.7 0.3 1.0
5-Clouds, Dust, efc. 0 0.0 9 10 18 1.0 1.3 2.3 4 3 7 0.5 0.4 0.9 0 0.0 0.0
6-Insuffic. mfo. 4 4 2.5 22 0 22 2.8 0.0 79 79 10.3 61 0 61 20.6 0.0 20.0
7-Psychological 0 0.0 2 2 0.3 0.3 18 4 22 2.3 0.5 2.8 6 3 9 2.0 11 3.1
&-Unkno wn 60 0 60 36.8 228 228 0.0 28.8 120 0 120 15.6 15.6 47 15.9 0.0
9-0ther 7 0 4.3 31 6 37 3.9 0.8 4.7 27 2 2.9 3.5 0.3 3.8 0 12 12 0.0 4.1
Total 128 35 163 78.521.5 100. 571 221 792 72.1 279 100. 549 218 767 71.6 28.4 100. 212 84 296 71.6 28.4100.
-
131

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-
TABLE 932 EVALVATON OF VNUT SIGHTINGSBY S/GHTING RELIABILITY
GROUPS Ace YEARS I
ERELLENT 7 6000 DOUBrEVE Poor
Per Cent Number
Evaluation Certan Doubthul Tatal Certain Doubtul Total Certain Doubtul Total Doubtful Doubtful Total Doubtful
0 Balloon 19 11 30 78 4.5 123 86 51 132 2.9 5.9 15.8 76 64 140 84 1.1 155 47 25 72 88 4.7 13.5 -
1-Astronomical 41 25 67 169 10.7 27.6144 230 16.5 9.9 24.4 123 80 203 13.6 8.8 224 75 64 139 14.0 11.9 25.9
2.Aircraft 25 18 43 10.3 74 17.794 85 179 10.8 2.8 20.6 115 99 214 12.7 11.0 23.7 58 33 91 6.2 17.0
3-Light Phenom. 0 2 28 000.810 19 11 1.0 2.1 1512 27 1.7 1.3 3.0 5 0.9 0.0 0.9
4·Birds 0 2 00 080.8 5 4 0.4 0.51.1 6 3 9 07 0.3 10 2 1 3 0.4 0.2 0.6 -
5-Clouds, Dust, etc. 0 0 00 0.00.0 2 0.2 0.60.8123 0.1 0.2 0.30 0.00.0 0.0
6-Insuffic. into. 10 010 41 0.04.1 29 0 29 3.3 00 8.3 119 011913.2 0.013.2103 0 10319.2 0.0 19.2
7.Psychological 0 00 0.0.0.0 3 / 4 0.3 0.1 04 21 6 27 23 07 3.0 12 2 14 2.2 0.4 2.6
8 Unkno wn 76 0 16 31.3 0.0 8.3212 0 212 24.3, 0.0 243126 0 12613.9 0.0 13.9 83 0 83 15.5 0.0 15.5 -
90ther 13 0 13 53 00 5.3 36 9 45 41 1.0 51 27 9 36 3.0.1.0 4.0 16 10 26 30 1.9 4.9
Total 186 57 243 76.5 23.5 100 621 250 871 71.3 287 100. 629 275 90469.6 30.4 100. 401 135 53674.825.2 100.
-
TABLE A33 EVALUATION OF UNIT SIGHIINGS BY SICHTINC RELIABILITY
GROUPS 1947
EXCelleNT 6000 DOUBrFUL PooR
Number Per Cent Per Cent -
Evaluation Certain Doubtful Doubthul Total Doubtful Doubthul Dou btful
0-Balloon / 00 5.9 0 / 3.4 34 3 3 8.6 0.0 86 2 2 12.5 12.5
1-Astronomical 0 3 0.0 17.6 5 4 9 17.2 13.8 31.0 9 13 25.7 11.4 37.1 2 0 2 12.5 0.0 12.5 0
2-Aircraft 1 / 2 5.9 5.9 11.8 3.4 3.4 6.9 0 0.0 0.0
3-Light Phenom. 1 0 34 0.034 / 29 0.0 2.9 0.0
4 Birds 0 0 0.0 0.0 0.0 0.00.0 0 0.00.0 0.0
S-Clouds, Dust, etc. 0 00.0.000 0 0000 0.0 000 0.0.0.0 0 00 0.00.0 0.0 0.0 2 00
6 Insuffic. Into. 6-Insuffic. into. 0 2 11.8 00 11.8 20 2 00 11.82 69 6.9 0.0 69 2 0 2 0.0 69 2 00 5.7 6 06 0 6 37.5 0.0 - -
7-Psychological 0 0.0 0.00.001100 0.0 0.00 / 0.0 3.4 3.4 2 1 3 3.4 3.4 2 13 57 5.7 2.9 8.6 8.6 1 0 16.2 0 6.2 00 0.0 6.2
& Unkno wn 8 Unkno wn 6 0 4 35.3 0.0353 7 0 7 24.1 0.0 24.1 9 0 4 25.7 0.0 25.7 2 0 2 12.5 0 4 35.30.0353 7 07 24.1 0.0 24.1 9 04 25.7 0.0 25.7 20 212.5 0.0 12.5
9-0ther 3 0 3 174 0.0 17.6 6 0 6 20.7 0.0 20.7 4 0 4 11.40.0 11.4 3 0 3 18.7 0.0 18.7 0 3 1740.017.6 6 0 4 207 0.0 20.7 4 04 11.40.0 11.4 30 3 18.7 0.0 18.7
-
Total 17 1 1794.1 5.9 100. 23 6 2979320.1 100. 30 5 35 85.7 14.3 100. 16 0 16 100.00.0 100. 17 1 17 94.1 5.9100. 23 6 29 79320.1100. 30 5 35 85.7 14.3 100. 16 0 16 100.00.0 100.
TABLE A34 EVALUATION OF UNIT SIGHTINGS EVALVATIONOEVNIT SIGHTINGS BY SIGHTING RELIABILITY BY SIGHTING RELIABILITY
GROUPS GROUPS 1948
EXCELLENT 6000 DOUBrFUL PooR PooR
Per Cent Number Per Cent Num ber Number
Evaluation Total Totai Certain Doubtful Certain Doubtul Total Doutthul Doubithul Doubtful Dou btful
0-Balloon 0-Bailoon 2 / 3 10.0 0.0 5.0 15.0 5 1/1 11 11.8 9.8 21.6 6 6 4 10 8.1 8.1 5.4 13.5 13.5 0 0 0
1-Astronomical 1 7 4 11 35.0 20.0 55.0 10 5 5 15 19.6 9.8 48 29.4 294 10 16 26 13.5 13.5 21.6 351 351 / 2 2 3 12.5 25.0 25.0 31.5 21.5
2-Airciaft 2 0.0 10.0 3 0 3 5.9 9 4 13 12.2 5.4 17.6 / 12.5 0.0 12.5
3-Light Phenom. 0 0.0 2 1 3 39 2.0 5.9 2 2.7 2.7 0 0.0
4-Birds / 0.0 5.0 2 3 2.0 29 5.9 1.4 14 0 00
5-Clouds, Dust, etc. 0.0 00 0.0 0 0
6-insuffic. info. 0 0.0 00 0 3.9 3.9 13 13 17.6 0.0 2 25.0 25.0
7-Psychological 0 0.0 00 1 / 2.0 0 0.0 0.4 0 0 0.0
8-Unknown 0 3 15.0 0.0 17.6 0.0 17.6 3 0 3 4.1 0.0 41101 12.5 /2.5
9-0ther 0 00 0.0 0.00.0 3 59 2.0 7.90 6 6 0.081 81101 12.5 12.5
Total 14 6 20 70.0 30.0100.37 14 5112.627.4100 42 32 74 56.8 43.2100. 6 2 8 75.0 25.0 100
TABLE A35 EVALUATIONOF VNIT SIGHTINGS BYSIGHTING RELIABILITY
GROUPS 1949
EXCELLENT 6000 DOUBTFUC Poor
Number Per Cent i umber Per Cent
Evaluation Certan Certain Total Doubtful Certain
0-Balloon 0 0.0 0.0 0.0 2 27 38 11.5 4 4 5.2 3 / 3.4 11 4.5
1-Astronomical 5 7 12 25.0 35.0 60.0 / 22 23 1.9 42 3 44.2 17 21 38 22.1 27.3 49.4 11 30 41 12.4 34.5 47.1
2-Aircraft / 0 / 0.0 50 5 4 11 9.6 11.5 21.1 7 8 91 13 10.4 5 10 57 5.7 11.4
3-Light Phenom. 17 0.0 00 0 0.d 0 0.0
4-8irds 0 1 5.0 0.0 2 26 0.0 2.6 0
5-Clouds, Dust, etc. 0 0 0.00.0 0.00.00 2 2.0 0.0 0.0
6Insuffic. Into. 2 0 0.0 000.0 4 770.0 7.718 0 /8 234 0.0 23.4110 11 12.4 00 12.6
7-Psychologi cal 12 0 00000.00 0.00.00.0 0 0.0 0.00.0 3 0 3 3.4 0.0 3.4
8-Unkno wm 5 0 5 25.00.0 25.0 8 0 8154 0.015.4 6 0 6 7.8 0.0 7.814 0.1414.1 0.0 14.1
3-0ther 1 01 500.0 5.0 00 0 0.0 0.0 0.0 10 1 1.3 00 1.34 2 4 4.4 0.0 4.6
Total 12 8 20 40.0 400100. 22 3052 42.357.7100. 55227771.428.610051 36 87586 41.4 100.
132

tem of report identification, the WORK SHEET permitted an orderly
transcription of data simultaneously by several people. In conjunction
with the CODES, the WORK SHEET was used during the reduction of the
original data to code form cessary for transfer to punched cards. A
sample is included as Exhibit B
However, at the time that the maneuver factor was determined to be criti-
cal, it was physically impracticable to make the required definitions and
been included in the CODES, CARD BIBLE, or IBM cards.
6

TaBLE 086 EVALVATON DE UNIT SIGHTNGS By SIGNTING RELIABILITY
GROUPS. 1950
EXCELLENT GOOD DOUBrEUL POOR
Number Number Per Cent
Evaluation Certain Doubtful Total Certan Doubtful Total Doub ful Doubtful Totai Certain Doubtful Total
0.Balloon 4 2 114 00 114 3 0 5 5.6 0.0 56 6 2 8 16.2 5.4 21.6 9 12 10.8 36 14.4
1-Astronomical 6 5 17.1 143 314 18 8 26 33.3 14.8 481 4 10 16.2 108 27.0 / 13 14.4 12 15.6
2.Aircraft 2 1 3 5.7 2.9 86 6 4 10 11.1 1.4 18.5 5 135 54 18.9 17 21 20.5 48 25.3
3-Light Phemom. 00 o0 od 0 O 0 0.0 0.0
4-Birds e 0 ad 00.0.d 0 0 0.0 0 O 0.d0
S-Clouds, Dust, etc. 0 0.00d0.0.0.0 0 000.0 O 0 00 0.00.00 0.0
6 Insuffic. Into. 2 41.40.0114 1 01 1.9 00 1.9 4 0 4 10.8 0.010817 0 17 20.5 0.0
7-Psycho logi cal 2.2 000.0.00 000000.0 0.00 0 0.0 0.00.0 2 0 2 2.4 2.4
& Unkuno wn 12 012 343 0.0.34310 0 10 185,0.0 18.56 0 16.2 0.016.214 0 14 16.9 0.0 16.9
90ther 1 2  29 0.0 2.9 1 3 4 1.9 56 75 1 1 2 2.7 2.7 5.4 3 1 4 3.6 1.2 4.8
Total 29 6 35 82.9 17.1 100 39 15 54 72.2 27.8100. 28 9 37 75.724.3 100.74 9 83 89.2 10.8 100.
TABLE AS7 EVALVATION OE UNIT SIGHTINGS B4 SIGHTING RELIABILITY
GROUPS 1951
EXCelleNT GOOD DOUBTFUL POOR
Number Per Cent Per Cent
Evaluation Certain Doubtul Doubtful Total Doubthul Doubtful Dou btful
0-Balloon / 59 0.0 5.9 4 1 5 11.1 2.8 13.9 4 4.3 43 86 0 2 54 0.0 5.4
0 1-Astronomical 3 2 5 19.6 11.8 29.4 12 4 16 33.3 11.1 44.4 6 6.4 12.8 8 8.1 13.5 2i6
2-Aircraft 3 / 11.6 5.9 23.5 O 7 19.4 0.0 19.4 2 4 l 4.3 8.5 12.8 3 7 10.8 8.1 189
3-Light Phenom. 0 2.0 2 3 4.3 2.1 4.3 0 00 0.0 0.0
4-Birds *-Biros 21 01000.010.01 0.0 110.012812801 / 0.0 2.8 2.8 01010.010.010.0101 0 0 D 1010.00.0100
5-Clouds, Dust, etc. 0 0.0.00 0.000.0 0.00.00.000 00.0 0.00.0000 00 0.0 0 0.00.0 0.0
6-Insuffic. Info. 0 000.00.0 0.0 00 0 0.00000 80812.00017.006 0.0 0.00.0 0.000 0 0.0 00008 08 12.00017.0 6e 6 16.2 0.0 16.2
7-Psychological 000.0 0.0 00 0.0 0.0 0 0 0 0.00.00.0 1 1 2 0.0 00 0 0.00.00.0 1 2 2.1 2.14.2 0 0 0 2.1 2.1 4.2 0 0 0.0 0.00.0 0.00.0
& Unknown &-Unknown 6 6 0 6 353,0.0 35.3 7 0 7 19.4 0.0 19.4 14 0 16 34.0 0.0 34.0 9 0 9 6 353 0.0 35.3 7 0 7 19.400 19.4 160 162 34.0 0.0 34.0 9 09 24.3 0.0 24.3 24.3 0.024.3
9-0ther 9-0ther 1 01 59 0.0 5.9 0 0 0 0.00.0 0.0 2 0 24.3 00 4.35 05 01 59 0.0 5.9 0 0 0 0.0 0.0 0.0 2 0 2 4.3 00 4.3 5 0 5 13.50.013.5 13.50013.5
Total 14 3 17 82.4 17.6 100. 30 6 36 83.3 16.7 100. 36 11 47 16.623.4 100. 29 8 37 184 21.6 100. 14 3 17 82.4 17.6 100. 30 6 36 83.3 16.7 100. 36 11 47 76.623.4 100. 29 8 37 18.4 21.6 100.
TABLE AS8 TABLE A38 EVALVATION OF UNIT UNIT SIGHTINGS B4 SIGHTING RELIABILITY SIGHTINGS B4SIGHTING RELIABILITY
GROUPS GROUPS 1952
EXCELLENT EXCELLENT 6000 DOUBTEUL Pooe PooR
Number Per Cent Number Per Cent
Evaluation Doubtful Doubtful Doubtful Total Total Certain Certain Doubtul Dou btful Total
O-Balloon 11 10 21 8.2 7.5 75 15.7 68 68 43 10.5 6.6 4.6 17.1 55 56 111 87 88 28 175 175 31 31 52 10.1 101 69 6.9 17.0 170
1-A stronomical 17 8 25 12.7 4.0 6.0 187 98 43 141 151 64 k6 21.7 18 32 110 12.3 5.1 17.4 12.4 46 26 72 15.0 8.5 23.5
2-Aircraft 16 11 15 11.9 41Δ 11.2 23.1 211 72 A2 74 aul 146 ull 41.1 11.422.5 00.6 92 02 88 CO 180 14.5 16129 13.9 28.4 29.4 31 21 52 <2 10.1 101 6.9 1.9 170
3-Light Phenom. 2 0 2 15 00 1.5 7 8 11 1.22.3 12 9 21 1.9 1.4 3.3 5 0 1.6 0.0 1.6
4-Birds 0 0.0 0.00.0 4 1 5 0.6 0.2 0.8 3 3 6 0.5 0.5 1.0 / 3 07 0.3 1.0
5-Clouds, Dust, etc. 0 2.00.00.0 2 5 1 0.3 0.8 1.1 2 3 0.2 0.5 0.0 0.0
6Insuffic. into. 4 0 4 300.03.020 020 3.1 0.03.174 0 74 0.0 11.7 61 0 61 19.9
7-Psychological 0 0 0 000.00.0 20 2 0.30.003 18 422 2.8 0.6 3.4 8 2.0 0.7 2.7
& Unkno wn 44 044 82.80.032.8 171 0171 26.3 0.026.3 86 0 86 136 0.0 13.6 43 0 43 14.1 0.0 14.1
9-0ther 7 0 1 5.2 0.0 5.2 26 5 31 4.0 0.8 4.8 19 2 21 30 0.3 33 0 0.0 2.9 29
Total 101 3313415.424.6100 470179 64912.427.6100 438 196 634 69.031.0100.225 80 305 73.826.2100.
133

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-
TABLE A39 EVALVATION OF OBJECT SI6HTINGS By SIGHTING RELIABILITY
GROuPS Acl YEARS
EXCELLENT 6000 DOUBTFUL POOR
Number Per Cent Number Per Cent Number
Evaluation Deubtful Total Certan Doubthul Total Certain Doubtful Doubtul Certan Doubthul Certain Doubtul Total Doubtful Total Certain Doubtful
0 Balloon 17 8 25 8.0 26 11.$ 13 44 12 7 11.0 5.6 16.8 73 5T 131 2.2 Z3 16.5 34 22 56 7.8 5.1 12.9 -
1-Astronomical 3.2 20 52 1510 9.44 24.4 109 66 174 14.3 8.7 23.0 88 154 8.3 19.4 46 53 99 10.6 12.2 22.8
2.Atrcraft 25 16 41 11.7 7.5 19.2 Y9 77 166 11.8 18,2 22.0 109 89 198 13.7 1142 24.9 42 27 69 9.7 6.2 15.9
3-Light Phenom 2 0 2 0 10 0.9 9 , 18 1.2 24 14 9 23 1.8 2.9 5 0 5 41 0.0 11
4-Birds 2 2 0.0 0.9 H 4 8 0.57 0.5 1.0 6 3 9 0.8 04 05 0.2 0.7
S-Clouds, . Dust, etc. 0 00 0.0 2 5 7 0.3 0.7 1.0 / 2 0.1 0.3a4 0 0 0.0
6 insuffic. into 0 9 H+{2 0.0 M+2 27 2-7 3.6 0.0 111 0 14.0 0.044.0930 93 21.4 0.0 214
7.Psychological 0 0.0 0.0 3 1 0.4 0.1 05 20 6 26 2.51.1 3.3122 14 2.8 0.5 3.3
8 Unkno wn 71 0.0 33.3 188 0 188 24.8 0.024.9103 010313.00.013.0720 12 16.6 0.0 1
9.0mer 11 5.2 0.0 5.2 31 7 38 4.1 0.9 50 27 9 36 3.4 1.1 4.5 16 8 24 3.7 1.8 5.5
Total 167 46 217 78421.6 100. 5#4213 75771.928.1100.552202 79469.530.5100.322113 43574.0 26.0 100.
I
TABLE A40 EVALVATION OF OAJECT SIGHTINCS 8Y SIGHTING RELIABILITY
GROUPS 1947
EXCELLENT 7 6000 DOUBTFUL
POOR 1
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtul Total Certain Doubtful Total Certan Total Total Certan Doubthul Certain
D-Balloon C 7.1 00 1/ 0 7.5 0.0 45 0 3 10.7 0.0 2 133 13.3
1-Astronomical 2 0 143 0.014.3 2 y 6 9.1 18.2 27.3 3 4 10.7 14.3 25.0 0 6.7 0.0 6.7
2-Aircraft 1 / 2 2.1 7144.3 45 y5 9.0 0 0 0.0 0 0.0
3-L ight Phenom. 3-Light Phenom. 0. 0 0 0.0 00.0.0 1 O O 1450.0451 45 451 / / 3.6 3.6 0.0 0 0.0
4·Birds 0 00.0.0 0 00 0.0 0.0 0.0 0.0 0
5-Clouds, Dust, etc. 0 0 0.0 0.0.0.0 0.00.0 00 00 0.0 0.0 0 0.0 0.0 0 0.0 0.00.00 0.00.0 0.0
6 Insuffic. info. 6 insuffic. into. 214.3 0.0 1 |
0 0.014.32 0.01432 0 29.1 0.0 9.1 2 29.1 0.0 9.1 0 2 7./ 0.0 7/6 6 6 Yo0 Y00 0.0 400
7-Psychoisgical 7-Psycholsgical 0.00 0.0 0.0 0.00 0.00.0 01 / 0.0 45 45 2 0.045 451 22 / / 371 3 71 3610.7 1 0 1 3610.7 1 6.7 0.0 6.7
8-Unknown 5 0 535.7 0.0 35.7 7 0 731.8 0.0 31.8 8 50 535.7 0.0 35.7 7 0 731.8 0.0 31.8 8 0 8 28.6 0.028.6 2 0 2 0.0286 2 13.3 0.013.3
9-0ther 2 0 24+3 0.0 14.3 2 0 2 9.1 0.0 9.1 4 0 414.3 0.014.3 3 0 320.0 2 0 24×3 0.0 14.3 2 0 2 9.1 0.0 9.1 4 0 414.3 0.014.3 3 0 3 20.0 0.0200 0.0200
|
Total 13 1 14929 7.1 100. 16 6 2272.7273100.23 5 2882.1 17.9100. 15 0 15100.0 0.0 100. 13 1 14929 2.1100. 16 62272.7273100.23 5 2882.1 17.9100. 15 0 15100.0 0.0 100.
TABLE A41 EVALUATION OE OBJECT SIGHTINGS BY SIGNTING RCLIABILITY EVALUATION OE OBJECT SIGHTINGS BY SIGNTING RELIABILITY
GROUPS 1948 | |
EXCELLENT EXCELLENT GOO0 GOOD DOUBTEUL DOUBTEUL Poop PooR
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total Certan Total Certain Certasin Doubtful Certasn Certan Doubthul Dou biful Dou bitful
G-Balloon 1 / 2 5.9 5.911.8 6 5 5 11 11 125 125 10.422.9 10.422.9 4 9 9 7.1 2.1 5.7 12.8 0 0 0.0 0.0 |
1-Astronomical 6 3 7 9 353 1.609 4 13 18.7 8.3 27.0 O 23 12.9 20.032.9 3 12.5 250 37.5
2-Aircraft 0 2 11.8 0.011.8 7 0 3 6.2 0.0 9 12.9 5.718.2 0 / 12.5 0.0 125
3-Light Phenom. O 0 0.0 0.0 7 1 3 4.2 2.1 6.3 2 2.9 29 0 0
4·Birds 0 / 0.0 5.9 2 3 2.7 4.2 6.3 0 1.4 0.0
5-Clouds, Dust, etc. 00 0.0 0 0 0.0 0.0 0
00 0.0
5-insuffic. into. 0 0 00 0.0 242 13 013 18.6 0.018.6 2 0 2 25.0 0.0 25.0
7-Psychological 00 0.0.0.0 1 0 1 2.10.0 2.7 0 0 0.00.0 0 O Q 0.0 0.0
8-Unkuno wn 3 0 317.6 0.017.6 8 O 8/6.7 0.016.7 0 3 4.3 0.04.3 1 0 / 12.5 0.0 125
9-0 ther 0 0 00.00.000 3 1 4622.18.3 0 6 60.0 8.68.6 1 0 12.5 0.0 12.5
Total 12 5 1770.629.4 100.35 13 4892.9 27.1100.4030 70157.1 42.9100. 6 2 8 75.0 25.0100.
TABLE A42 EVALVATION OF OBJECT SIGHTINGS B4 SIGNTINS RELIABILITY
GROUPS 1949
EXcElleNT 6000 DOUBTEUL PoOR
Number Per Cant Number Per Cent Per Cent Nusber
Evaluation Certan Total Certain Doubtful Doubtful Certan Doub thul Total Certain Doubt ful Dou bifhul Total Certain Doubtful
G-Bailoon Q 0.0 4.0 4 / 5 10.8 2713.5 0 6.9 0.0 6.9 3 41 1.4 15.5
1-Astronomical 5 9 294 235 12.9 13 11 2735.137.8 12 15 2720725.94466 23 34 14.9 31./46.0
2-Aircraft / 0 5.9 0.0 159 5 6 770 13516.229.77 / 812/1.7 13.8 5 5 10 6.8 13.6
3-L ight Phenom. 0 0.0 000.01 0010.0 0 00.0 0.000 0 0.0
4-Birds 1 1 00 5.9 6.9 0 0 0.0 0.00.02 23.4 0.03.4 0 0.0
S-Clouds, Dust, efc. 0 0.00.0 0 0.0 0.00.00 000.0 0.00.0 0 00 00 0.0 0.0
6 Insuffic. info. 0 00 0.0.0.0 0.0 0 3 2.1 0.08.1 13 0132240.0224 9 0 9122 0.0 12.2
7.Psychologi cal 0 0.0 0.0 0.0 0 0.0 0 00.0 0.00.0 3 0 3 4.1 0.0 4.
& Unkunown 51 529.40.029.9 4 0 4 10.8 0.040.8 31 0 3.520.05.210 010 13.50.0 13.5
9-0ther 0 15.90.0 5.9 0 0 0 0.00.0 00 1 0 11.7 0.0 1.7 4 0 4 5.40.0 5.4
Total 12 51720629.4100.17203746.9.54.1100.142165872.427.6 100.145297460.8 39.2100.
134

TeBLE A43 EXALVATION QE OBJECT SIGHTINGS Ry SIGNTING CELIABILITY
---- GROUPS 1950
EXCelLENT 6000 DOUBTEUL PooR
Number Per Cent Per Cent Per Cent Number
Evaluation Certan Doubthul Total Certain Deubtful Doubtful Doubtful Total Certan Total Certain Doubtful Certain Doubthul
0Balloon 4 0 4 12.5 0.0 125 3 3 7.9 7.9 5 6 16.7 3.3 209 9 3 12 13.0 4.3 17.4
1Astronomical 3 5 8 9.4 15.6 250 9 13 23.7 10.5 342 4 4 8 13.3 13.3 26.6 9 , 10 13.0 14 14.5
2.Aircraft 2 1 3 2 3.1 9.3 6 4 10 15.8 10.5 26.3 5 0 16.7 0 167 9 4 13 13.0 5.8 18.8
3-Light Phenom. 0 0.0 0 0.0 0 0 0.0 00
4-Birds 0 0.0 20 0.0 Q 0 0 0.0 0 0.
S-Clouds, Dust, etc. 0 0.0 00 0.0
0.0 0.0 00 0 0.0 0
6-Insuffic. info. 4 0 4 125 0 125 1 - 2.6 00 4 13.3 0.0 15 0 15 21.7 0.0 21.7
7-Psycho logical 0 0 0.0 0.0 0 o 0.0 0 2 2 2.9 0 2.9
- & Unkuno wn 0 12 37.5 0 9 A 23.7 0.0 5
16.7 16.7 13 0 13 18.8 0.0 18.8
90mer 1 0 3.1 0.0 , 2 2.6 5.2 1 3.3 6 C 3 4 4.3 1.4 5.8
Total 26 6 32 81.2 18.8 100. 29 38 76.323.7 100. 24 6 30 80.0 20.0 60 9 69 87.0 13.0 100
LABLE A44 EVALVATION OF OBJECT SIGHTINGS By SIGHTING RELIABILITY
GROUPS 1951
EXCELLENT 1 6000 DOUBTFUL POOR
Number Per Cent Number Per Cent Per Cent
Evaluation Certain Doubtful Total Certain Total Certain Doubtful Certan Doubthul Certain Dau btful Total
0-Balloon 0 1 77 0.0 7.7 4 5 12.5 3.1 15.6 2 4 4.8 9.6 1 0 2.9 0.0
1-Astronomical 2 2 4 15.4 15.4 30.8 10 14 31.2 12.5 43.7 / 4 2.4 7.1 9.5 3 5 8 88 14.7 235
2-Aircraft 3 - 4 23.1 7.7 30.8 6 0 18.8 0.0 19.8 2 3 5 4.8 7.1 11.9 4 6 5.9 17.7
3-Light Phenom. 0 0.0 11.8
0.0 0 2.0 0.0 / I 2 2.4 4.8 0 0.0 0.0
4-Birds 4-Birds 0 0.0 0 1 - 0.0 3.1 0 0.0 0 0.0
5-Clouds, Dust, efc. 5-Clouds, Dust, elc. 0.0 0.0 0 0 0 00 0.0 0 0.0
6-Insuffic. into. 6-Insuffic.. Into. 0 0 O 0.0 00 0.0 8 19.0 19.0 0 6 17.6 0.0 0.0
7-Psychological 0 0 0.0 0.0 17.6
00 1 1 2 2.4 4.8 0 0 0.0 0.0
& Unknown 4 0 30.0 0.0 30.8 0 6 19.9 19.9 198 15 0 15 35.7 0.0 35.7 8 0 8 23.5
9-0ther 0 0 0.0 0.0 00 00 0.0 0 0.0 0.0 23.5
2 2 4.8 5 0 14.7 0.0 147
Total Total 10 3 13 13 76.9 23.1 100. 26 6 32 81.2 18.8 100. 10 42 76.2 23.8 27 7 34 79.4 20.6 100
(N6LE 145 iA6LE 145 EVALVATION OF OBJECT OF OBJECT SI6HTIN6S SI6HTINGS BY SIGNTING RELIABILITY
GROUPS GROUPS 1952
EXCELLENT 6000 DOUBTEUL POOR
Number Number Per Cent Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubthul Certain Doubtful Total Certan Doubtul Total Certain Doubtful Dau btful Dou btful Total
G-Balloon 10 7 17 8.3 5.8 14.1 65 37 37 102 112 2 6.4 6.4 17.6 54 51 105 105 9.5 9.0 185 19 18 37 8.1 7.7 7.7 15.8
1-Astronomical 1-Astronomical 14 6 20 11.7 5.0 5.0 16 7 77 77 37 114 114 13.3 6.4 19.7 59 59 26 85 10.4 10.4 4.6 15.0 21 22 43 8.9 9.4 18.3
2-Aircraft 16 13 29 13.3 10.8 24.1 68 66 34 11.7 11.4 23.1 86 167 15.2 14.3 29.5 23 6 49 9.8 6.8 16.6
3-Light Phenom. 2 0 2 17 0.0 7 6 8 14 1.0 1.4 2.4 12 18 2.1 11 3.2 5 0 2.1 0.0 2 1
4-Birds 0 0.0 0.0 3 1 4 0.2 7 3 6 0.5 1.0 2 0.9 0.4 1 3
5-Clouds, Dust, etc. 0 00 0.0 0.0 2 5 7 0.3 0.9 1.2 1 3 0.2 0.4 6 0 0 0.0 0.0
6insuffic. info. 3 0 2.5 0.0 2.5 19 0 19 3.3 0.0 3.3 71 12.5 12.5 55 0 55 23.4 23.4
7-Psychological 0 0 0.0 0.0 2 2 0.3 17 4 21 3.0 0.7 3.7 6 2 8 2.6 0.9 3.5
& Unknown 42 0 35.0 00 350 154 0 154 266 0.0 26.6 69 12.2 38 Q 38 16.2
9-0ther 0 7 5.8 0.0 5.8 25 5 30 4.3 0.9 52 19 2 21 3.4 0.4 3.8 0 7 0.0 3.0
Total 9426 120 78.3 21.7 100.421 159 580 72.627.4 100. 391 175 566 69.1 30.9 100 16966 235 71.9 28.1
0n
135

Certan Total Certain Doubtful Total Certan Doubtful Total Certain Doubthul Total Doubt ful Total Doubtful Tot
0.Bailoon 13 21 64 39 10.3 49 34 83 95 6.6 161 38 23 6 104 63 4.1 15 10 25 105 1.0 17.5
1 Astronomical 28 15 47 13.7 28230 83 57 140 16.111.127.2 13 4/3 114 200 11.8 3.8 18 21 39 12.6 14.7 27.3
2.Anrcrat 27 13 40 182 6413.6 32 35076.2 6.813026 22 48 11 60 1/11 6 77 4.2 11.9
3- Light Phenom 0 0 0.00.000 6 2 81.2 04161 23 03 05 08 2 14 0.0 1.9
4-Birds O 2 2 001.01.0 4 2 6 08 041.2 50 5 14 001.40 00 00 0.0.00
5-Clouds, Dust, etc. 1
O 0.2 00 00.00 7 1 8 1.4 02 1.6 2 130.5 03 08 0 0 0 0.0 000.0
6 Insuffic. info. 3 03 1.5 0.01.5 14 0 14 2700 27 18 0 18 4.9 20 4.915 015 10.5 0010.5
7-Psychological 0
8 Unknown 27 077 37.7 0.0377155 0.15530200302 90 0 90 24.7 0024.7 30 0 30 2.0,0.0,21.0
9.0ther 14 0 14 4.9 0.0 .9 28 5 33 54 1.064 17 3 20 4.2 08 5.5 3 10 13 2.1 2.0 9.1
Total 12242 204194206100378136514 78.5265100 270 95 365 740 260100 94 49 14365.7343100
|
TABLE H47 EVALVATION DE ALL SIGHTINGS FOR ALL YEARS B4 SIGHTING
RELIABILITY GROUPS CIVILIANOBSERUERS
EXCELLENT 6000 DOUBrEUL Poer
Number Per Cent Number Per Cent Number Per Cent 1
Evaluation Certain Doubtful Total Certain Doubthuil Total Doubtful Certan Total Certain Doubtful Total Doubthul Certan Doubttul Total Dou bithul Totai
G-Bailoon 6 5 it 58 4.8 104 51 29 80 92 52 144 62 57 119 6.6 61 12.7 36 14 50 24 3.7 13.1
1-Astrongmical UZ 41 28 163 106269 83 53 136 14.9 9.5 244 29 95 224 13.8 10.2 24.0 45 42 87 11.7 11.0 22.7
2-Aircraft i4 620 135 5819.3 73 73146 13.1 13.1 26.2131 113 244 14.012.126.140 20 60 10.4 5.2 15.6
3-Light Phenom. 2 0 2 19 00 1.4 4 7 1 27 1.3 2.0 14 13 27 1.5 1.4 29 3 3 08 0.0 0.8
4-Birds 4-Birds 2 0 200.0.00 1 2 3 0.2 0.4 0.6 7 3 10 08 0.311 2 1 0 0000.0.00  2 3 0.20.4 0.6 7 3 10 3 05 03 0.3 08
5-Clouds, Dust, etc. 0.00 00 00.00 1 9 10 0.21.6 18 2 2 4 0 0 00 00.0.0 1 9 10 0.2 1.6 18 2 2 4 0.222 0.4 0 0.202 0.40 0 0 00 0.0 0.0 00 -
6-insuffic. info. 4  09 87 00 87 9 0 19 34 0.0 34132 0 132 4 0 9 87 00 87 9 0 19 34 0.0 35132 0 13214.10.0 14/88 0 88 14.10.014/880 88 23.0 0.0 23.0
7.Psychological 0 0 0 00 00 0.0 3 1 4 05 0.2 0721 52623 05 2814 115 0 0 0 00 00 00 3 1 405 0.2 0721 5 26 13 05 2814 1 15 37 0.0 37 31 0.037
8-Unknown 31 031 2980.0 248127 0127228 00228113 011312.100 12.66 0.64 31 0 3/29800 298 127 0 127228 00228113 0 1312100 12.66 0 64 17.2 0.3 17.5 17.20.317.5
9-0ther 3 0 r 29 0.0 29 4 6 20 251.1 3.6 25 9 34 2.8 1.0 38 8 2 10 2.1 0.5 2.6 3 0 5 29 0.029 4 6 20 251.1 3.6 25 9 34 2.8 1.0 38 8 2 10 2.1 0.5 2.6
-
Total 82 22 104 78821.2120 376180 556676324100. 636 297 933682 318100. 30280382 78.921.1100 82 22 104 788 21.2120 376180 556676324100.636 297 933682 318100.302 80 38278.921.1100.
TABLE A48 EVALVATION OE ALL SIGHTINGS EVALVATION OF ALL SIGHTINGS FOR 1947 BY 51GHTING FOR 1947 B45164TING
RELIABILITY GROUPS GROUPS MILITARY MILITARYOBSERVERS OBSERVERS — —
EXCELLENT 6000 6000 DOUBrFUL DOUBTFUL PooR
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtul Total Doubiful Total Doubtful Total Certain Doubtul Total Total Certain Certasn Doubtful Total Dou btful
G-Balloon G-Ballioon / 11.1 11/ 0 00 00 0.0 0 0d / 00 250 250 2 0 2 500 50.0 00
1-Astronomical 2 0 222 00 22.2 / 0 / 9.1 0.0 0.0 91 91 0 1 25.0 00 0.0
2-Aircraft / 2 11.1 1.1 22.2 0 0 0.0 00 00 O 00 0 20
3-Light Phenom. 0 2 0 00 1 91 0.0 00 0 D
4-Birds 0 0 a0 00.00 0.0 0 00 0 2 00
S-Clouds, Dust, etc. 0 0 00 00 000 000.0 0 0.0 00 0 0.0 00
5-insuffic. into. 0 Q 00.00.0.01 / 91 00 960 0 00 00 2 50.0 50.0
7.Psychological 0 0.0.002000000 0.000 0.0 0 11 00 250 00 0.0 00
B-Unkunown 3 0 3333 0.0 333 5 0 5 4550045510 1 250 0.0 2500001 00 0.0
9-0 ther / 01111 0.0 11.1 3 0 3 2730.0 273 0 0 0 00 00 00 000000.0
Total 81988911.1100 1101110020.000 22450050.0100 40 40.000 100
IABLE A49 EVALVATION OF ALL SI6HTINGS FOR 1947 BY SIG47/NG
RELIABILITY GROUPS CIVILIAN OBSERVERS
EXCELLENT 6000 DovBrEUL Pooe
Number Per Cent Number Number Per Cent
Evaluation Certaun Doubtful Total Certain Doubtul Certain Total Certain Doubtul Total Doubtful Certain
G-Bailoon 0 00 0.0 00 / 0 40 40 2 49 0 0 00 0.0 00
1-Astronomical 1 0 10.0 0.0 100 lo 4 10 24016.0 40.0 3 19 39.0 7.3 6 6 46.2 0.0
2.Arcraft 2 0 00 0.0 40 4.0 80 0 0 0.0 00
3 Light Phenom. 0 00 0 o 0d 00 00 1 0 2.4 0024 00 0.0
4-Birds 0 00 0.0 0 21 0d0.00.00 0.0 00 0 0.0
5-Clouds, Dust, etc. 2 0 0 0.000 0.0 d00000d 2 21 0.0 0 8 00
6 Insulfic. ink. 4 0 4 400.00 01400040 20249 0049404 301 0.0
7-Psychoilogncal 8 000.00.0:000 1 10.040 4.0 2 0249 0049 10 1 7.7 0.077
8 Unkno wn 3 0 3 300 0.0 30d 6 0 62400.0 24.0 8 08 19.5008.5 2 0 2 15.4 0.0 15.4
9-0ther 2 2 2 2000.0 20.0 4 0 414.00.0 160 1.0771 0.02. 0 0 0 00 00 0.0
Total 10 0 1010000.0,100. 19 62576.024.0100 38 34,9277.3100 13 013 10000.0100.
136

---
TABLE A50 EVALVATON OE ALL SIGHTINGSFOR1948 By SIGNTING
RELIABILITY GROUPS MILITARY OBSERVERS
ExCe, LENT G000 DOUBTEU Pook
Number Per Cent Number Per Cent
Evaluation Deubtful Certain Doubtful Total Doubtful Total Doubtful Certan Total Certain Doubtful Total
0 Balloon 0 / 00 67 67 8 3 11 286 107 39.3 2 5 10.5 158 243 0 0 0.0 0.0
1-Astronomical le 3 9 400 20.0.400 8 1 9 28.6 36 82.2 2 4 10.5 10.5 21.0 0 0 0.0 0.0
2.Asrcraft 2 0 13.3 00 13.3 0 / 36 003.6 5 1 6 26.3 5.3 31.6 25.0 0.0
3-Light Phenom. 0 2 000000 3 21 864070 1 / 00 5.3 0 0.0
4·Birds 110067 671 / 2 3.6 3.4 7.21 0 5.3 0.0 53 0 0.0
Clouds, Dust. etc. 0 0.0 0000.00 0 0.0000 0 0 0.0 0 0 0.0
6insuffic. into. e 000000:000 0.0 00 0.0.0.02 0 2 10.5 0.0 105 2 0 50.0 0.0 50.0
7.Psycho logi cal e 0000.0.0.0.00 00 0000000 0.0 00 0 0.0
B- Unkno wn 2 021330013300 0 000.0 0000 0 0.0 00 0.010 125.0 0.0 25.0
90ther 0.00.0
Total 10 5.15647.333,100. 22 6 2808.6 21.4 100 12 7 19 63.236.8 100 404100.0 0.0100.
TABLE ASI EVALVATION OF ALL SIGHTINGS FOR 1948 B4 5IGHTING
RELIABILITY GROUPS. CIVILIAN OBSERVERS
EXCELLENT 6000 DOUBTFUL PooR
Number Per Cent Per Cent Number Number Per Cent
Evaluation Certain Doubtful Total Doubtul Total Certain Doubtful Total Certain Doubtful Total Certan Doubttul Dou biful
0-Balloon 2 3 22.2 ut 333 / 5 6 25 12.5 150 4 7 / 4.8 8.3 13.1 0 0 0.0
1-Astronomical 0.0
2 3 111 22.2 33.3 5 6 1/ 12.5 15.0 27.5 13 24 37 15.5 28.6 44. / / 2 16.7 334
2-Aircraft 0 0.0 2 50 0.0 5.0 4 8 48 4.8 96 0 / 16.7 0.0
3-Light Phenom. 0 0.0 00 4 d 0.0 48 0 0.0
4.Birds 4-Birds 0.2.2 0 0 00.00.0.0011 00 00.0.00 / 0.0 2.5 2.5 0 0.0 00 0.0 0.00.0 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 00 0.0 20.000.00 00.000.0 0 0.0 00 000 00 00 Q.0 0.0 0.00 0 0.000 0.00.0
6Insuffic. info. 0100 0 0.0 0.0.0.0 0.0 20 2 0.0.0.0 00 20 2 5.0 5.0 0.0 12 0 12 14.3 120 12 14.3 14.3 1 0 1 14.3 1 0 16.7 0.016.7
7-Psychological 00000.0.0 00101 0 00 00.0.0 0010 1 25 0.0 250 0 0 250 0 0 00 00 00 00 0 0 0 00 0 0.0000.0
8-Unkno wn 30 333.30.0 33.3 140 14 3 0 3 33.3 0.0 33.314 0 14 35.0 35.0 00 35060 6 35.0 6067.10.0 1.100 7.1/01 7.1 1 0 1 16.7 0.0 16.7 16.7 0.0 16.7
9-0ther 0 00 0.0.2.0 0.0 1 2 3 2.5 5.0 7.5 04 6 0.0 7.1 7.1 1 0 1 14.70.0 167 0 00 0.0.2.0 0.0 1 2 3 2.55.0 7.5 04 6 0.0 7.1 7.1 1 0 1 14.70.0 167
Total 6 3 94.7 33.3100 26 14 40 650 35.0100 39 45 84 46.4 53.610 5 1 6 83.3 16.7100. 6 3 44.7 33.3 100 26 14 40 65035.0100 39 45 84 46.4 53.6100 5 1 6 83.3 16.7100.
TABLE A52 TABLE A52 EVALUATIONOF ALL SIGHTINGS EVALUATION OF ALL SIGHTINGS FOR 1949 BY BY SIGNTING
RELIABILITY GROUPS RELIABILITYGROUPS MILITARY OBSERVERS OBSERUERS
EXCELLENT GOOD GOOD 7 DOUBIFUL PooR
Number Per Cent Per Cent Number Per Cent Num ber
Evaluation Certain Certain Doubtful Total Doubtful Total Certan Total Doubtful Certain Doubthuil Total Doubthui Certain Doubthul Doubthul Total Dou btful
D-Balloon O-Balloon 0 0.0 0.0 2 / / 3 3 5.0 2.5 2.5 7.5 4 0 4 49 4.9 / 0 1 3.3 33
1-Astronomical 2 3 5 11.8 11.8 17.7 29.5 2 26 28 28 50 65.0 70.0 24 31 55 29.3 378 61.1 3 18 21 60.0 60.0 10.0
2-Aircraft 0 00 0.0 3 3 0.0 7.5 2 6 8 2.4 7.3 97 0 3 100 10.0
3-Light Phenom. C 0 0 0.0 0.d000 0 0.0 0.d 00 0.0 0
4·Birds 0 / 1 00 0 0.0 00 00 0.0 0
5-Clouds, Dust, etc. 0 0.0 0.0 0.00 0 000.00 0.0 0 0.0
6 insuffic. into. 0 0.0 0.2.0.0 40 10.0 000d4 0 4 49 0.0 4.9 0 0.0 0.0
7.Psychological 0 0 00 0.0 0.001 0 00000d 00 0.0 0.0 0.0 0 0 0.0
B-Unkunown 6 0 6 353 0.0 353 2 0 21 500.0 50 90 9 110 0011.0 5 0 5 16.7 0.0
9-0ther 5 0 5 29.4 0.0 294 0 00 0.00.0 0.02 0 2 2.4 0.0 2.4 0 0 0 0.00.0 0.0
Total 13 4 1776>23.5100.10 30 40 25.075.0 100.45 37 82 54.945.1100 12 18 30 40.0 60.0 100.
i
TABLE A53 EVALUATION OF ALL SIGHTINGS EOR 1949 B45IGHTING
RELIABILITY GROUPS, CIVILIANOBSERVERS
EXCELLENT 6000 DOUBTEUL POOR
Number Per Cent Number Per Cent
Evaluatrion Certan Doubtful Total Certain Doubtful Total Certan Total Certain Certain Total Doubtful
G-Balloon 0 0 00 0.0 3 / 4 88 2.9 11.7 6 9 50 2.5 7.5 0 0 0.0
1-Astronomical 6 5 11 33.3 27.841.1 / 10 1/ 2.9 24.4 32323 28 51 19.2 23.3 42.5 13 11 24 24.1 20.4 44.5
2-Aircraft 4 0 222 0.0 22 2 5 1! 116 14.7 32.3 5 26 12.5 9.2 21.7 / / 2 18 1.8 36
3 Light Phenom. 0 0 0 0000 0d 0 0 0 0.0.0.0 0.d 0 0 0 0.0 0.0 0 0.6
4·Birds 0 0 00000d o 0 0.00.0 0.040 4 3.3 O.C 0 0.0
5Clouds, Dust, etc. 0.0
0 0000.0000 00 0.0.00 0.0 0 0 0 0.0 0.00 0.0
6 Insuffic into. 0.000.0 0.0.0.0 2 0 2 59 0.05.917 0 1714.2 0.0 14.2 4 0 16.7 0.0 16.7
7.Psycho iogi cal 00 0 0.000 0.0 0 0 0 0.00.0 0.00 0 0 0.00.00.0 3 0 3 5.6 0.0 5.6
8& Unkuno wn 3 0316.7 00.14.74 06 17.7 0.0 17.212 0 1210.0 0.0 10.013 0 13 24.10.0·24
3.0ther 2 2 000 0.0.0.000.0 0.00.0 0.0 1 0 10.8 0.00.8 8 0 3 56 0.0 5.6
Total 135 1872 227.8 100. 18 16 34530 47.0 100. 78 42 120 65.0 35.0100. 4212 54 72.8 22.2100.
137

Evaluation Doubtul Tata Certamn Doubtful Certan Total Certain Doubitful Tota
0 Balliaon 0 3 14 29 / L3 0.0 3.3 9 10 200 2.2 22.2 1 2 21 7.1 14.2 1
I-Astronomical 6 10 188 12.5 3/3 16 335 20.0 533 9 9 00 2 2 14.3 0.0
2.Avrcraf Q 00 0.0 00 4 6 67 13.3 200 0 4 0.0 89 8.9 2 2 14.3 0.0 14.3
3-L.ight Phenom. 21 0000 000 o0 0.0 0.0 2 0.0 00 0 0
4-Birds 20 00.0.0.0d 0 0.0 0 00 0.0 0 00 -
5 Clouds, Dust, etc. 0.000.000.0 0 0 D 0.0 0.0 ao 00
6 nsulfic. into. / 01 31 003110 3.3 2 0 44 00 4.4 0 2 14.3 0.0
7.Psycho logical 0.00000.000 0 000 0.0 0 00 0.0
8 Unkuno wn 17 0175320.0532 3 03 10.00.010.05 015 33.3 00 833 5 0 5 35.7 0.0 35.7 |
90mer 1213.1 0.0 2103 3 0.0·10.0 10.0 2 3 5 4.4 67 1.11 0 1 2.10.07.1
Total 2843287.5 12500. 17 13 3056.743.3 100 37 8 45 82.2178 100 13 1 1492.9 7.1100.
THBLE A55 EVALUATION OF ALL SIGHTINGS EOR1950 BY SIGNTING
RELIABILITY GROUPS, CIVILIAN OBSERVERS
EXCEL-ENT 6000 DOUBTEUL POOR
Number Per Cent Per Cent -
Evaluation Doubtful Total Doubtul Total Certain Certan Doubthi Total Dau biful
G-Balloon 2 59 0.0 5.9 0 2 6.9 0.0 4.9 9 13 5.1 7 / 8 11.5 1.6 13.
1-Astronomical / 3 4 5.9 17.6 23.5 2 12. 34.5 69 4/.4 11 3.4 10.3 14.2 8 10 13.1 3.3 164
2-Aircraft 23.5 59 29.4 1 5 13.8 3.5 17.3 17 5 22 218 6.4 28.2 10 0 10 16.4 0.0
3-Light Phenom. 2 2.0 00 a0 0.000 0.0 0 0 0.0
4·Birds 4-Birds 010 024 00.0.00.01 02.0 0.000 010 010.02.00.0 01 010000.000 2.8 2d00.0.0 0.00.0 e0 0 0 0.0 0 00
5-Clouds, Dust, etc. 00.0000.0·0.0 e 0.0000.00.0 000 0000 0.000 0 2 00000.00 0 00 0.0 00 0 00 0 0.000 0.0 00
6 insuffic. Into. 3:0.317.6 0.017.6 0 00 00000.023 0 23 31 0.317.6 0.017.6 0 0000 000.023 0 23 29.5 0.0 24.5 7 0 17 29.5 7 0 17 27.9 27.9 0.0279 279 | |
7-Psychological 0.0.00.0 0 0.0 0.00.0 0000.00.000000 00 0.00.00000 0.0 0.0 4 0 4 0.0 40 4 6.6 0.0 6.6 6.6 0.0 6.6
8-Unknown 8-Unkno wn 404235 0.0 4 04235 0.0 23.5 9 23.5 9 0 93 09 3100031.0 1 0 7 31.00031.0 7 0 7 9.0 9.0 0.04.011 0 1 0.04.0110 118.00.018.0 8.0 0.018.0
9-0ther 0 0.00.02.0 00 1 0135,0.0351 1 2 1.8,1.3 26 1 0 1 1.6 00 1.6 0 000.02000 1 011 350.0 35 1 1 2 1.3 1.3 24 10116 00 1.6
|
Total 13 4 17 765 235 100 26 329 89.610.4 100 60 18 78 66.925.1100. 58 3 61 45.1 4.9 100. 13 4 17765 235100 26 3 29 89.610.4 100 60 18 78 66.925.1100. 58 3 61 45.149 100.
TABLE A56 TABLE A56 EVALUATION OF ALL SIGHTINGS EVALVATION OF ALL SIGHTINGS Foe 1951 B4 SIGHTING
RELIABILITY GROUPS, RECIABILITYGROUPS, MILITARY OBSERVERS OBSERUERS | |
EXCELLENT 6000 DOUBTEUL DOUBTEVL POoR POOR
Per Cent Number Number Per Cent
Evaluation Doubtful Certain Doubthul Total Doubthul Doubtful Total Certan Certan Doubtful Total Certamn Doubthul Certain Dau btful Dou btful Total
0-Balloon G-Balloon 0 / 7.1 0.0 0.0 7.1 7.1 4 5 0.4 7.4 21.7 1 I 2 2 4.3 86 86 / 4.8 48 9.6 | —
1-Astronomical / / 2 7.1 14.2 9 11 39.2 39.2 8.7 479 4.3 86 2 3 3 9.5 25 4.8 14.3
2-Aircraft 3 0 3 7 21.4 00 00 21.4 4 17.4 0.0 40 174 / 1 2 4.3 13 86 aJ A 5 4.5 4E 14.3 142 23.1 92
3-Light Phenom 0 2 00 0.0 0 1 1100 4.3 43 0.0
4-Birds 0 0.0 0 / 0.0 43 4.3 0 00
5-Clouds, Dust, etc. 0 0.0 0 00 0 0.0
5insuffic. into. 0 2 2 0.0 0.00.0 00.0 0.00.02 8.7 0.0 8.70
7-Psychological Q 0 00.0 00 00000 0.0 0.0·04 0.0
8-Unkuno wn A 07 214 0.0 21.42 2/87 0.0 87 12 0 12 52.20.0 52.2 9 0 9 42.9 0.0 42.9
9-0ther / 017.10.0 7.10 0 0 0.00.000 2 0 2 87 0.0 8.7 2 02 9.5 0.0 9.5
Total 1311492.9 7.11001942382.6 124100.1942382617.41001452176.223.8100.
TABLE A57 EVALUATION OF ALL SIGHTINGS FOR 195I BY SIGNITING
RELIABILITY GROUPS CIVILIAN OBSERVERS
EXCELLENT 6000 DOUBrFUL POQB
Number Per Cent
Evaluation Certan Certain Doubtful Certain Doubthul Total
GBalloon 0 0.0 0.0 0 5.6 56 / 2 2.9 5.8 / 4.5
1-Astronomical 2 / 3 500 250 150 4 3 22.2 167 389 5 5.7 8.6 14.3 D 9 18.2 22.7 40.9
2-Aicraft 0 / 1 0.0 25.025.0 3 16.7 0.0 16.7 / 3 C 29 8.6 11.5 0 2 9.1
3 Light Phenom. 0 0.00.0 0 00 2 5.7 5.7 0.0 0.0
4·Birds 0 0.0.0.0 0 00 0.0 0.00.0 0 0.0
S-Clouds, Dust, etc. 0 2.000 0.0 0.0 0.000 0 0.0
6insuffic inlo. 0 0.0.0.0.0.00 0.0 00 2 7 20.00.0 0.0 5 22.7
7-Psychological 2 0 0.00.0 0.000 0 0.0 00 / 2 2.9 2.9 58 0.00.0
8&-Unikuno wn 0 2 0.00.0 0070 7 388 0.0 38.8 13 0 13 37.20.0 37.2  0 9.1 0.0 9.1
9-0ther 0 00 0.00.00.000 00.0 0.0 0.0 0 0 0 0.0 0.0 0.0 3 0 3 13.6 0.0 13.6
Total 2 2 450.050.0100. 153 1883.3167 100.27 8 35 77.2228100175 2277.322.7100
138

I
TABLE A58 EVALVATION OF ACL SI6HTING5 FOR 1952 BY SIGHTING
RELIABILITY GRoups MILITARY OBSERVERS
EXCELLENT 6000 DOVBTEVE PooR
Number Per Cent Per Cent Number
Evaluation Certain Doubtful Total Certan Doubtful Doubthul Certain Total
0 Balloon 5 7 15 6.8 6.0 12.8 34 29 63 89 2.6 165 21 18 39 10.9 2.4 20.3 10 8 18 14.3 11.4 25.7
1 Astronomical 8 19 9.4 6.8 16.2 53 22 75 139 5.8 19.7 37 8 45 19.3 4/2 235 1 2 13 15.7 2.9 18.4
2.Atrcraft 21 12 33 180 10.3 28.3 25 28 53 65 7.3 138 18 10 28 9.4 5.2 14.6 3 6 43 4.3 8.6
3 Light Phenom. 0 0 0.0 00 3 1 4 08 0.3 0.5 2 29 0.0 2.9
4·Birds 0 3 08 08 42 4 2.1 2.1 0 0.0
S Clouds, Dust, etc. 0 7 F 1.8 1.0 051.5 0 0.0 0.0
6 Insuffic into 2 2 1.7 0.0 0 8 2.10.0 2.1 8 0 8 4.2 00 4.2 9 0 9 12.9 0.0129
7.Psychological 0.0 0 000.0 0.0 000 000.00.0 02 2 00 2.9 2.9
8-Unknown 42 0 42 35.9 0.0 0 143 3740.0 37.453 053 27.60.0 27.6 10 0 10 14.30.0 14.3
9.0tmer 06 5/ 0.0 5.1 23 2 25 6.00.5 6.5 11 0 11 5.7 0.0 5.70 10 10 0.0 14.3 14.3
Total 702711776.923.1100.299 83 838278.321.7100.1553719280.719.3100.45 2570 64.335.7 100
TABLE B59 EVALUATION OE ALL SIGHTINGS FOR 1952 B4 51GHTIN6
RELIABILITY GROUPS, CIVILIAN OBSERUERS
EXCELLENT 6000 DOUBIFUL POOR
Per Cent Number
Evaluation Total Certain Doubtful Certan Dou btful Total
0-Balloon 3 4 7 45 87 15.2 43 23 66 105 5.6 16.1 40 42 82 70 7.3 14.3 28 13 41 12.4 5.8 18.2
1-Astronomical 6 0 6 13.1 00 13.1 57 28 85 13.9 6.8 20.7 12 29 101 12.5 5.0 17.5 13 23 36 5.8 10.2 16:0
2-Aircraft 6 4 10 131 8.2 21.8 57 66 123 13.9 16.1 30.0 94 90 184 16.3 15.7 32.0 26 19 45 11.5 8.4 19.9
3-Light Phenom. 3-Light Phenom. 2 0 2 430.04347111.017 4.3 1.0 1.7 2.7 17 11 9 2019613.331 20 1.9 16 3.5 21311.310.011.3 3 0.0 1.3
4-Birds 0 2 00 0.0.0011 2 00.00112 0.2 0.2 0.2 0.4 3 3 6 3 6 0.5 1.0 0.5 1.0 1.5 2 1 3 0.9 0.4 1.3 1.5 2 0.9 0.4 1.3
S-Clouds, Dust, etc. 0 0.00.00.0 1 9 10 0.2 0.0 0.0 0.0 1 9 10 0.2 2.2 2.42 2 40.3 0.3·0.6 0 0 0 0.0 0.0 0.0 2.4 2 4 0.3 0.3 0.6 01 00 0.00.0
6insuffic. Into. 6 insuffic. Into. 2 0 4.3 0.0 4.3 14 0 14 4.3 0.0 4.314 0 14 34 3.4 0.0 2471 0 71 3471 0 71 12.3 12.3 0.0 12.3 52 0 32 23.0 0.0 23.0 0.0 12.3 52 0 52 23.0 0.0 23.0
7-Psychological Q 0 0 00.0.0 0.02 0 2 00 0.00.0 2 0 2 0.50.0 0.5.0.0 0.5 18 4 22 0.518 422 3.1 0.7 3.8 6 1 7 2.7 0.4 .3.1 0.7 11 2.7 0.4 3.1
8 Unknown 8 Unkunown 0 18 39.4 39.4 0.0 39.4 85 0 86 20.7 0.0 20.7 67 0 47 11.7 0.0 11.7 37 0 37 20.7 67 0 47 11.7 0.0 11.7 37 0 37 16.40.0 16.4 16.40.0 164
9-0ther 1 01 22 0.0 2.2 8 4 12 2.0 1.0 3.0 16 2 18 2.8 0.3 3.1 0 2 2 0.0 0.9 0.9 22 0.0 2.2 8 4 12 2.0 1.0 3.0 12 2 18 2.8 0.3 3.1 0 2 2 0.0 0.9 0.9
Total 38 8 46 82.617.4 100. 272 138 41066.3 33.7100. 394 181 575 68531.5 100. 16759 22673.9 26.1 100. 846 82.617.4 100. 272 138 41066.3 33.7100.394 181 575 168531.5 100. 167 59 226 73.9 26.1 100.
•
139

1
1
TABLE 860 REPORTEO COLORS OE OBJECTS SIGHTED B4 YEARS
ALL SI6HTINGS -
Al Ye aks 1947 1948 1949 1950 19.51 1952
Nose SexCa Nu PeliaNuPeRCeN NerePe CNueZeCe NuSR CEnNu e Cen
WHE OR GLOWING WHITE 778 242 28 239 45 22.0 94 238 72 235 38 28.8 496 24.6
METALLIC 549 17.2 24 205 36 17.6 60 152 81 265 26 16.3 322 15.9
COLOR NOT STATEO 436 186 30 256 31 151 39 99 61 199 25 15.6 250 12.4
ORANGE OR GLaWInG ORAN 298 93 6 5.1 21 10.2 24 61 7 23 17 10.6 223 11.0
RcD oR GLowNG REO 253 79 7 60 14 68 37 9.4 27 8.8 10 6.3 158 7.8
CREEN OR GLOWING GREEN 224 2.0 1 0.9 15 7.3 64 16.2 13 4.2 7 4.4 124 6.1
Liont Grow Caoe aor Kan 219 68 5 4.3 14 19 4.8 15 49 8 5.0 158 7.8
YELLRN UR GrOwNG 4ELLOw 208 6.5 8 68 12 59 23 58 9 29 11 6.9 145 7.2 -
Bive oR Growna Bive 145 4.5 4 3.4 8 39 21 5.3 11 3.6 8 5.0 93 46
BLACK oE GLowino BLaCK 67 2.1 4 34 7 34 8 2.0 2.0 6 38 36 1.8
ONT G eTeemaTe Ca 13 04 00 2 1.0 5 1.3 0 1 0.6 5 0.3
KULET OR GLOWNG kIOLET 8 0.3 2 0.0 0 0.0 e 3 1.0 / 06 4 0.2 -
GOWING GRAY 8 0.3 0 2 0.0 / 08 / 0.3 1.3 4 02
TOTAL 3201 100 117 100 205 100. 395 100.3041100 140,00. 2018100. 1
TABLE A6/ REPORTEO COLORS OF OBJECTS SIGHTEO BY YEARS
UNIT SIGHTINGS •|
All Yeaes 1947 1948 1949 1950 1951 1952
Ursee eeCenTNuraee PeRCeNrNuRee RERCenrNurBER PERCenr NUseSEeCeN NuBeR ReCENNuBed ReCent NUsee SeeCEen Kure SeRCeNrNunee RERCEnr NureR SeRCenr NuseeSEeCeN NBeR ReCeN NuredReCent
Ware ok Glowve Wart Ware ok Glowve Ware 410 239 27 278 26 170 57 24.2 50 23.9 33 241 417 24.2
METaLLLE METALLLE 422 16.5 22 22.7 30 19.6 19.6 37 37 157 40 19.1 19.1 25 18.2 18.2 268 268 15.6 | —
CoLek NoT Stareo 325 12.7 22 22.7 23 23 15.0 26 4/2 20.1 16.8 189 11.0
DRpAcE vR GLOItG ORANGE DRPAck vR GLOuING ORANGe 253 9.9 3 3 3.1 3.1 16 10.5 18 76 6 2.9 14 10.2 196 11.4
Ree oe GoNG ReO Ree oe GrouNG ReO 203 7.9 4 4 4.1 9 5.9 23 9.7 9.7 21 21 10.0 6 4.4 140 140 8.1 8.1 / |
GREEN OR GLOWING GRECA 175 175 6.9 / 10 15 9.8 26 26 11.0 10 48 48 7 5.1 116 6.7
6 CLi Coo aer Krown CLi (ook aor Krown 178 7.0 7.0 4 4.1 10 6.5 13 13 5.5 11 1 5.3 Z 7 5.1 5.1 133 7.7 1.7
Yesow i GLowiNG cow YeoW i GLoWN cow 185 7.2 7 7 72 10 6.5 16 6.8 9 9 4.3 8 5.8 135 78
Beve ok Grewina Beve Beve ok Grewins Beve 121 121 4.7 3 3.1 6 39 39 11 5.3 8 5.8 82 4.8 4.8 -
BLaCk as GLowinG BinCk BLaCk as GLowinG BeACk 59 59 2.3 4 4 41 6 6 3.9 2.5 2.5 2.9 4 29 29 33 19 19
LIGMT 6e aeMmAE CO LIGNT 6e EMmAE CO 10 0.4 0.4 0 00 2 1.3 08 0.0 / 0.7 5 0.3
VULET OR GLOWING VOCET KIOLET OR GCOWING VOCET 7 7. 03 0 0.0 0 00 2 1.0 1.0 1 07 4 02
GcowinG GeA4 Gcow.nG GeAy 6 6 0.2 0 0.0 00 0.0 / 0.4 1 05 0.5 0 4
ZTAL 2554 100 47 100. 153 100.236100.209100.137100722100
TABLE A62 REPORTEO COLORS OF OBJECTS SIGHTED B4 YEARS,
OBJECT SIGHTINGS
AcL YEARS 1947 1948 1949 1950 1951 1952
NumBeR See Cear Nurse er CenNumBeR ReRCenr Numsee Se Cenr Nunoe ReeCenrumsec PeeCeaT Nensee ReeCENT
TE OR GLOWING WHTE 517 235 22 27.8 25 17.5 43 23.1 44 26.0 27 22.3 356 23.7
METACLI 389 177 20 25.3 29 20.3 34 183 36 21.3 22 18.2 248 16.5
CaroR NOT STArEP 271 12.3 18 228 21 14.7 19 10.2 31 183 22 182 160 107
DeamaE oe GLowunG Oeance 221 10.0 3 3.8 16 11.2 15 81 5 3.0 12 9.9 170 11.3
sev ok Gcewine Reo 79 81 3 3.8 8 5.6 19 10.2 16 9.5 6 5.0 127 85
GREEN OR GLOWING GeEEN 144 4.6 0 0.0 12 84 21 11.3 8 4.7 58 94 6.4
LIGNT GLOW COLOS NOT KNOWN 152 69 4 5.1 10 7.0 12 6.5 8 4.7 5 4.1 113 7.5
YECLOW OR GLOWING YECLOW 15 9 1.2 3 3.8 9 6.3 12 6.5 8 47 7 5.8 120 8.0
BivE or GLoWine Bve 93 4.2 2 2.5 5 3.5 5 2.7 6 3.6 7 5.8 68 45
biACK OR GLOwinG BLACK 57 2.6 5.1 6 4.2 5 2.7 5 3.0 4 3.3 33 2.2
LIGNT GLoW/NOETERNINATECo 7 0.3 0 0.0 2 1.4 0 00 0 1 0.8 4
VOnET OR GLOWNe VIOLET 5 0 00 0 00 / 06 / 08 3 0.2
GLOWiNG GRAY 5 02 0 0.0 00 1 05 / 0.6 0 3 0.2
TOTAL 2199 1120 79100.143 100. 186 100 169100 121 100 1501100.
140

TABLE A68 EVALUATION OE ALL SI6HTING5 FOR ALL YEARS 84
COLoRs REPORTED
TorarS WAITE CR GLOWING WHITE METALLIC COLOR NOT STATED
Number Per Cemt Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certan Doubtfu! Doubtful Tota! Certan Doubtul Total Certain Doubtful Total Doubthul
0Bailoon 270 180 450 84 5.6. 14.0 77 63 140 2.4 2.0 4.4 79 39 118 2.5 1.2 3.7 32 25 57 1.0 0.8 1.8
Astronomical 476 341 817 14.9 10.6 255 116 83 199 3.6 2.6 6.2 11 22 0.3 0.3 41 18 59 1.3 0.6 1.9
2-Arcraft 354 288 642 11.1 9.0 20.1 65 69 134 2.0 2.2 9.2 101 75 176 3.2 2.3 55 42 23 65 1.3 0.7 7.0
3-Light Phenom. 32 24 56 1.0 0.8 1.5 3 8 11 0.1 0.3 0.4 5 0.1 0.2 0 0.0 0.1
4·Birds 19 10 29 0.6 0.3 0.9 6 2 8 0.2 0.1 3 4 7 8 0.1 0.3
5 Clouds, Dust, etc. 12 13 25 0.4 0.4 0.8 3 4 7 0.1 0.2 3 0.0 0.1 4 0 0.0
6 insuffic. nto. 298 0 398 9.3 0.0 9.3 58 1.8 58 1.9 1.8 78 0 2.4 0.0 2.4
7.Psychological 38 10 48 1.2 0.3 1.5 11 0 11 0.0 0.3 9 9 00 8 D 8 0.0 0.3
& Unkno wm 689 0 21.5 0.0 21.5177 177 5.5 5.5 126 3.9 113 0 1/3 3.5 3.5
3.0ther 112 35 147 3.5 1.1 4.6 28 0 28 0.9 1.0 25 0 0.8 0.0 0.8 43 1.3
Total 3300 901320171.928.1100.544 22977517.0 7.2 24.2.418 131 599 13.1 4.1 17.2368 68 436 11.5 2.113.6
CRANGE OR GLONING CRANGE RED OR GLOWING RED GREEN OR GLWING GREEN LIGHT GLOw, COLOR NOT KNOWN
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubthul Doubtul Doubtful Total Certain Doubthul Total Certain Dou btful
G-Bailoon 18 11 29 0.6 0.3 0.9 16 10 26 0.5 0.3 0.8 3 D 3 0.0 0.1 15 14 29 0.5 0.4 0.9
1-Astronomical 49 31 80 1.5 1.0 2.5 69 29 93 2.0 0.9 2.9 58 99 157 1.8 3.1 4.9 48 16 64 05 a.0
2-Aircraft 33 31 64 1.0 1.0 2.0 26 18 44 0.8 0.6 1.4 7 9 16 0.2 0.3 0.5 26 52 18 0.8 1.6
3-Light Phenom. 10 0 10 0.0 0.3 2 3 0.1 0.2 0 2 0.1 0.0 0.1 4 8 0.2
4-Birds 2 1 3 0.1 0.2 0.0 0 0 00 1.0 1 1 0.0 0.1
S-Clouds, Dust, etc. 0 0 0.0 0.0. - 0.0 0.1 0 0.0 2 1 3 0.1 0.2
6-insuffic. Info. 0 20 0.6 0.0 0.6 0 17 0.5 0.0 0.5 12 o 0.9 ao 0.4 35 0 25 0.8 0.0 O.T
7-Psychological 8 0 J 0.3 0.0 0.3 3 0 0.1 0.1 0 D.0 00 0.0 1 0 1 0.1
8-Unknown 66 0 b6 2.1 0.0 51 0 1.6 0.0 1.6 30 0 30 0.9 00 31 1.0 0.0
9-0ther 18 O 18 0.6 0.0 0.615 15 0.5 0.0.0.5 4 0 4 0.0 0.1 5 0 0.0 0.2
Tota 224 74 299 7.0 2.3 9.3193 3 60 253 6.0 1.9 7.9 116 108 224 3.6 34 7.0157 62 219 4.9 1.9 6.8
YELLOW OR GLOWING YELLOW BLUE OR GiLOWinG BLvE BACK OR GLOWinG BLAcK LIGHT Gow, INDETERNINATE COLOR
Per Cent Number Number Per Cent
Evaluation Certain Doubtful Total Doubfful Total Certain Doubtful Doubtful Total Certain Doubitful Dou biful
0-Bailoon 18 9 27 0.6 0.3 0.9 5 1 6 0.2 0.1 0.3 5 7 12 0.2 0.4 - 0 0.00.1
1-Astronomical 39 21 60 1.2 0.7 1.9 48 25 23 15 0.8 2.3 1 2 3 0.1 0.1 0.2 0 5 0.0 0.20.2
3-Light Phrenom. 2 9 0.2 0.1 0.3 - 0 1 0.0 0.1 0.0 1 / 2 0.1 0.2
4 Birds 1 2 3 0.1 0.2 0 0.0 D.D - I 0.0 0.1 0
. S-Clouds, Dust, etc. 0 1 0.0 0.1 Q.1 0 3 0.0 D.1 00 0.1 0 0D 0.0
5 Insuffic. into. 16 0 0.5 0.0 0.5 4 0.1 Dn1 10 10 0.3 0.0 0 0 00 0.0
7·Psychological 2 0 0.1 0.0 0.1 2 4 0.0 0.1 0 0 0.0
8 Unknown 43 0 1.3 0.0 34 0 34 1.1 0.0 1.1 12 04 0.4 1 D 0.1 0.0 0.1
9-0ther O 5 0.2 0.0 0.2 2 0 2 0.1 0.0 0.1 0 00 0.0
I Total 156 52 208 4.9 1.6 6.51106 39 145 3.3 1.2 4.546 21 67 14 0.7 2.11 6 7 13 0.2 0.1 0.4
VIOLeT OR GLOWInG VIOLET GLOWING RA Y
Number Per Cent Number Number Per Cent
Evaluation Certan Doubtful Total Certain Doubthul Total Certain Certan Doubtful Total Certain Doubtul Tota
GBalloon 0 1 - 00 0.1 0.1 0.0
1-Astronomical 1 0 0.1 0.0 8.1 0 - - 0.0.
2.Aircraft 3 1 4 0.1 0.2 I 0 0.1 0.0
3.Light Phenom. 0 0 0 0.0 1 - 0.0 0.1 0.1
4-Birds 0 1 1 0.0 0.0 0 D 0.00.0
5-Clouds, Dust, etc 0 0 0.0. 0.0. 0 0.0 0.00.0
6Insuffic inko 0 0 D 0.0. 0.0 0 O 0.00.0
7.Psycholog cal 0 0 0.0. 0.6 00 0 0.0 0.0
& Unkso wn 1 D 0.1 0.0 0.1 4 0 4 0.0 0.1
- 30ther 0 0.20.0.0.0 0 0 0.0 0.0 0.0
Totai 5 3 0.3 0.10.3 6 2 8 0.2 0.1 0.3
141

1
TABLE 464 EVALVATIONOEVNI7 SIGHTINGS FOR ACL YEAKS BY
coLORs REPORTED -
TOTAL WAITE OR GLOWING WAITE METALKIC COLR NOT STATED
Number Per Camt Per Cent Number Per Cent Number Per Cent
Evaluation Certmn Total Certain Doubiful Total Certain Doubtful Certan Doubtful Doubtful Total Certain Doubifful Total Certain Doubtful
0-Balloon 228 151 379 8.9 5.9 14.8 61 50 111 2.4 2.1 4.5 65 32 97 2.5 1.3 38 28 21 45 1.1 0.8 1.9
1-Astronomical 383 256 639 15.0 10.0 25.0 93 67 160 3.6 2.6 6.2 8 9 0.4 -
17 0.3 0.7 23 16 39 0.9 0.6 1.5
2.Aircraft 292 235 527 11.4 9.2 20.6 49 54 103 1.9 2.1 4.0 88 14.2 3.4 2.1 5.5 3.2 16 46 1.3 0.6 1.9
3-Light Phenom. 32 21 53 1.3 0.8 2.1 8 11 01 0.3 0.4 3 4 7 V.1 0.2 0.3 0 / 0.0 0.1
4-Birds 13 10 23 0.5 0.4 0.9 4 2 6 0.2 0.1 a3 3 0.1 4 , 5 0.2 O.1 0.3 -
SClouds, Dust, etc. 3 7 10 0.1 A3 0.4 / 3 4 0.1 0.2 , 0 / 0.0 0.1 , 0 0.0 0.1
6insuffic hto. 261 0 261 10.2 0.0 10.2 0 54 2.1 0.0 40 0 1.6 70 2.7 a.0 2.7
7-Psychological 36 9 45 1.4 0.4 1.8 8 2 10 0.3 0.1 0.4 / 9 0.3 0.1 0.4 6 0 6 0.2 00 0.2
& Unknown 497 0 497 0.0 19.5 131 0.0 5.1 84 0 84 3.3 0.0 71 0 7/ 2.8 0.0 2.8 |
9-0ther 9228 120 36 1.1 4.7 19 1 20 0.7 01 0.8 15 6 21 0.6 0.2 0.8 29 6 35 1.1 0.2 1.3
Total 1537 717255# 71.9 28.1 100.42318761016.6 7.3 23.9315 10742212.3 4.2 16.5264 6132510.32.412.7
|
ORANGE OR ORANGE RED OR GREEN.OR GLENING GREEN LIGHT GLow. OLOR NOT KNOW
Number Per Cent Per Cent Number Num ber Per Cent -
Evaluation Certain Doubtful Total Doubtful Total Certain Doubtful Total Certain Certan Doubtful Total Certain
0-Balloon 16 10 26 0.6 0.4 1.0 13 10 23 0.5 0.9 3 0 3 a1 a0 0.1 14 10 24 0.5 0.4 0.9
1-Astronomical 40 28 66 1.6 11 2.7 50 21 71 2.0 08 2.8 52 20 122 2.7 4.7 37 9 46 1.4 0.4 1.8 4
2-Aircraft 22 26 48 0.9 1.0 1.9 23 17 40 0.9 0.7 1.6 7 9 0.3 0.4 0.7 21 25 46 0.8 1.0 1.8
3-Light Phanom. v 10 0.4 0.0 0.4 2 3 0.1 C1 0.2 2 0 a1 0.0 0.1 4 2 6 02 0.3
4-Birds 2 1 3 a1 0.1 0.2 0 0 00 0.0 0 0.0 OD , 0.0 01 0.1
5-Clouds, Dust, etc. 0 0.0 0.0 0 / 0.1 0.1 0 a.0 00 0.0 1 / 0.0 0.1
6-Insuffic. info. 18 18 0.7 0.0 0.7 0 18 a.0 0.7 9 0 9 0.4 0.0 24 0 0.9
7-Psychotogical 5 3 0.2 al 0.3 0 3 0.1 0.0 0.1 QD 0.0 0/ / 0.1 0.1
B Unkno w 55 2.2 00 2235 035 1.4 0.0 1.4 19 0 /9 0.7 0.0 0.7 24024 0.9 0.0
9-0ther 98170.40.30.7729 0.3 0.1 0.4 3 1 4 0.11 al 21 50 5 0.2 0.0
Total 177 76 25 6.9 3.0 9.9150 53 2035.9 2.1 7.995 80175 3.7 3.1 6.9129 49178 5.1 1.9 7.0
YELLOW OR GLEW ELOW BLVE OR GrowiNG Bive BLACH OR GLOWING BLACKIGHTGLOWINOETE CoLeR
Number Per Cent Number Per Cant Per Cent Number
Evaluation Certain Doubtful Total Doubtul Total Doubtful Totai Certain Total Certain Doubtful Certan Doubthul Dou btful Total
0-Balloon 17 26 a.7 0.4 1.1 4 / 5 0.2 0.1 0.3 5 712 0.3 0.5 / 0 1 0.1 0.0
1-Astronomical 34 1751 1.3 47 2.0 1e 11 L0 17 17 1 AO )
O 0 0.0 / / 00 0.1 0 0.0 0.0
6-Insuffic. into. 15 0 0.6 0.0 3 0 0.1 O0 10 10 0.4 0 D 0.0 0.0
7.Psychological 2 0 0.1 0.0 0.1 , l1 0.2 / 4 0.1 C 0 0.0 00
&-Unknown 36 036 1.4 0.0 29 029 1.1 0.01.1 9 0.4 0.0 0.4 4 0 / 0.1 0.0
9-0ther 3 250.10.1 02 202 0.1 0.00.10220.0 0.10.1 000 0.0 0.0
Total 136491855.3 1.9 7.2 94 27 1213.7 1.1 4.7 40 1959 1.60.72.3 64 10 0.2 0.20.4
VIOLET ORGOWING NOLET GLOWING GRAY
Number Per Cent Number Number Per Cent
Evaluation Certan Doubitful Total Certan Doubtfui Total Certain Doubtful Certain Doubthul Certan Total Doubtful Total Doubtful Total Certain
GBalloon l 0.0 01 0.1 0 / 0.1 a0
1·Astronomical 0 / a1 00 al 0 / 0.0 0.1 0.1
2.Alrcraft 2 / 3 0.1 0.1 0.2 0.1 0.0 0
3-L ight Phenom ( C 0 ad 0.0 00 D / / 0.1
4-Birds l / 1 0.0 0.1 0.1 0 0.0
5-Clouds, Dust, etc. 0 00 00 0 0.0
5insuffic inko. 0 00 0.0 0 0.0
7-Psychoiog cal a 0 0.0 01 00 0 0.0
8& Unkno wn / l 1 0.1 0.0 0.1202 0.11 0.0 0.1
3.0ther 0 0 0.0 0.00.0000 0.0000.0
Total 4 3 7 0.20.10.34 2 6 0.20.10.2
142

sidered. In this mar , the assignn major serial and minor sub-
he had seen unidentified aeria bjects.
SIGHTING - The report
observed phenomenon that remained unidenti-
fied to the observer or observers, at least
until reported.
7

44 85 5.2 137 3.9 2.4 6.3 28 16 44 1.3 0.7 2.0
3-Light Phenom 30 18 48 1.4 0.8 2.2 3 7 10 0.1 0.3 0.4 3 4 7 0.2 0.3 0 0.0 0.0
4-Birds 12 10 22 a5 0.5 1.0 4 2 6 l.2 0.1 0.3 3 , 0.1 0.1 0.2 4 1 5 0.2 0.3
SClouds, Dust, etc. 3 7 10 0.1 0.3 0.4 3 4 0.2 0 / 0.0 / 0 0.1 0.0 0.1
6 insuffic. into. 240 10.9 ao 48 0 45 2.2 0.0 38 1.7 62 0 2.8 0.0
7.Psycholagica 35 9 44 1.6 0.4 2.0 8 210 a4 0.1 0.5 8 / 9 0.4 0.5 0 6 0.3 0.0 0.3
& Unkno wn 434 0 434 19.7 00 19.7 112 0 112 5.1 0.0 5.1 76 76 3.5 35 62 0 62 2.8 0.0 2.8
10mer 8524109 3.9 1.1 5.0 161 17 0.7 0.1 0.8 14 4 18 0.6 0.2 26 5 31 1.2 0.2 1.4
Tota 1595614 2199 72.127.9 100.355 162517 16.1 7.4 23.5 29/ 98 389 13.2 4.5 17.7 224 47271 10.2 2.1 12.3
CRANGE OR LOWING RED DR GLNING RED GREEN OR GLOWING GREEM LIGHT GLOM, COLOR NOTKNOWN
Number Per Cent Number Per Cent Number Per Cent Per Cent
Evaluation Certain Doubtful Total Certain Doubtul Total Total Certan Doubtful Certain Doubtful Certain Total Doubttul Dou bttul
0-Balloon 15 10 25 0.7 0.5 1.2 13 9 22 l.6 C.4 1.0 3 0 3 0.1 0.0 14 8 22 0.6 0.4 1.0
1-Astronomical 30 25 55 1,4 1.1 2.5 38 16 54 1.7 0.7 2.4 43 55 98 2.0 2.5 4.5 25 9 34 1.1 0.4 1,5
2-Aircraft 18 22 4C 0.8 1.0 1.8 22 14 3e 1.0 0.6 1.6 7 7 /4 0.3 0.6 18 22 40 0.8 1.0 1.8
3-Light Phenom. 10 C 11 1.5 0.0 0.5 1 2 3 0.1 0.1 0.2 0 a.1 0.0 0.1 4 2 6 0.2 01 0.3
4-Birds 2 l.1 C./ 0.2 0 C 0.0 0 0 0.0 / 0.0 0.1
S-Clouds, Dust, etc. 100 a0 C0 0 / / 0.0 0.1 C 0 D 0.0 00 / 0.0 0.1
6-Insuffic. Iinto. 17017 C.8 0.0 0.8 18 0 18 0.0 08 9 0 0.4 0.0 21 0 21 1.0 0.0 1.0
7.Psychological 4 3 7 C.2 0.1 0.3 0 3 a.1 0.0 0 0 0.0 0.0 / 0.1
& Unkonown 490 49 2.2 0.0 2.2 0 33 1,5 1.5 14 0 0.6 0.0 21 0 21 1.0 0.0 1.0
9-0mer 9 7 16 0.4 0.3 0.772 9 C.3 0.1 0.4 3 / 4 0.2 0 5 00 0.2
Total 153682217.0 3.110.1 V35 u41796.1 2.0 8.1 81 63 144 3.7 2.9 6,5108 44152 4.9 2.0 6.9
ELLOW ORG eWING YeLLON BLUE OR GLOWING BLve BLAcK ORGL OWING BLACK IGHT GLOW, INDETERMINATS COLO
Number Per Cent Number Per Cent Num ber Per Cent
Evaluation Certasn Doubtful Total Certain Doubtul Total Certain Doubtful Certain Doubtful Total Doubtul Doubthul Total Doubtful
G-Balloon 16 8 24 0.7 a4 1.1 3 / 4 a/ a1 0.2 5 7 12 a3 a5 / D 1 0.1 a0
/
1-Astronomical C / 0.1 a0 0 1 0.0 01 0.1
2-Aurcraft / 2 0.1 0.2 0 0.1 0.0
3-Light Phenom. C 0 0.0 ao 0 / 0.0 0.1
4-Birds / 0.0 0.1 0.1 0 0.0 00
S-Clouds, Dust, etc. C 0 0 00 0.0 00
6 insuffic. into. c 0 00 ao 0.0 0 C 0.0
7.Psychological C 0 0.0 0 0.0 00 0.0
B-Unkno wn 1 0 0.1 00 / 0 1 0.1 0.0
3-0ther C 0 0 0.0 0.d000 00 0.00.0
Total 3 2 5 0.10.10.2 3 2 5 0.1 0.1 0.2
143

-
TARLE A46 ERALVRIION OEALLS/GHTINGS FOR ALL YEARS BY
NUMBER OF OBJECTS PER SIGHTING ONE OBJECT -
dee YEARS 1947 19 48 1949
Number Pe Cent Per Cent Number Per Cent
Evaluation Certann Doubtful Total Certain Doubthu! Total Certain Doubt ful Certan Doubthul Certmn Doubthal Doubtful Total Certain Doubtfui Tatal Doubthul Tota
G-Balloon 228 147 375 9.5 C.1 15.6 5 0 5 0.0 7.0 15 19 34 9.0 11.4 204 14 A 4.3 1.5 5.8 -
1-Astronomical 436 311 747 18.1 12.9 3/0 29 6 35 408 8.4 49.2 34 34 68 20. 3 20.3 406 64 128 192 19.7 394 59.1
2.Atrcraft 227 197 424 9.4 8.2 17.6 o 2 0.0 2.8 28 9 5 14 5.F 3.0 8.4 28 12 40 8.6 3.7 12.3
3-L ight Phenom. 19 11 30 0.8 0.5 1.3 0 2 2.8 0.0 1 1 0.6 06 1.2 o 0 00 0.0 ao
4-Birds 2 0.1 0.2 0 o 0.0 00 1 2 0.6 1.2 0 0 0.0
5-Clouds, Dust. etc. 9 12 21 0.4 0.5 0.9 o 0 00 0.0 0 O 0.0 0 0.0
6insuffic into. 215 O 2/5 0.0 8.9 0 5 00 7.0 14 0 16 96 0.0 9.6 22 6.8 00
7.Psyche logi cal 34 0 34 1.4 0.0 1.4 2 2.8 0.0 0.0 O 1 0.3
& Unkno wn 463 o 19.2 00 12 O 16.9 ao 16.9 23 O 23 13.8 0.0 138 40 0 12.3 0.0 12.3 I
3-0ther 99 4.1 00 4. 8 0 11.3 0.0 11.3 0 4.8 48 10 3.1 3.1
Total 1731 679 2410 71.8 28.2 yoo. 63 8 71 88.7 11.3 100 107 60 167 64.1 35.9 100. 179 145 324 55.3 44.7 100
1950 1951 1952
Number Per Cent Number Per Cent Per Cent
Evaluation Certain Doubtful Total Doubtful Total Doubthul Tota Certain Totai Certain Total Certan Doultful Total Dau btful
G-Balloon 30 7 37 11.8 2.8 4.6 10 4 14 7.4 2.9 10.3 154 112 266 10.6 7.7 183
1-Astronomical 46 25 71 18.1 98 279 23 14 37 16.9 10.3 272 240 104 344 16.5 7.1 23.6
2-Aircraft 22 13 35 86 5.1 13.7 15 7 22 11.0 51 16.1 153 311 21.3 •
158 10.5 10.8
3-Light Phenom. 0 00 0.0 2 1 3 1.5 0.7 2.2 14 9 23 10 06 1.6
4-Birds DITOn 0 00 0.0 0.0 O 0 o ao 0o 0.0 0 0 o
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0 ao ao 00 0.0 o o O ao 0.0 9 12 21 0.6 0.8 14
6-Insuffic. into. 6-Insuffic. info. 44 0 0.0 17.3 17.3 10 0 0 10 7.4 ao 7.4 118 8.1 0.0 81 -
7-Psychological 4 0 4 1.6 0.0 1.6 0 0 2 1.5 0.0 1.5 25 25 1.7 0.0 1.7
8-Unknown 8-Unkno wn 0 53 208 0.0 20.8 43 316 0.0 31.60 31.6 29e 0 292 292 20.0 0.0 200
9-0ther 10 0 10 3.9 0.0 3.9 5 0 0.o ao 3.7 58 58 o 4.0 0.0 40
Tota 209 209 45 254 82.3 177 17.7 100. 11026 110 26 136 80.9 19.1100. 1063 395 145872.9 27.1100. 1063 395 1458 72.9 27.1 100.
TABLE A47 EVALUATION OF ALL SIGHTINGS FOR OF AL S/GHTINGS FOR AL AL YEARS YEARS B4
NUMBER OF OBJECTS PER SIGHTING TWo TWO
Aed Aie YEARS 1947 1948 1949
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doub tful Doubtful Total Certain Doubthul Tolal Doubtul Total Certan Certan Doubitful Certain Dau biful Dou biful
G-Bailoon 22 21 21 43 43 80 7.6 156 0 0 0.0 00 1 , 2 6.7 134 2 10.0 10.0 0.0
I-A stronomical 12 13 13 25 4.4 47 9.1 2 4 222 22.2 444 444 2 1 3 13.3 6.7 20.0 20.0 6 4 10 300 300 50.0 50.C
2-Aircraft 2-Aircraft 53 C3 4.3 96 91 19.3 19.2 156 349 0 1 0.0 11.1 3 C 20.0 0.0 2 4 6 10.0 20.0 30.0
3-Light Phenom 4 2 6 1.4 0.7 2.1 0 0 O 0.0 1 6.7 6.7 0 0.0 00
4-Birds 0 0.0 0 O 00 O 0.0 0 0.0
5-Clouds, Dust, etc. 2 1 3 0.7 04 1.1 0 0 0.0 0.0 a0 0 O ao 00 o 0.0
6-Insuffic. info. 19 0 19 6.9 00 0 O 0.0 ao 0.0 0 O 0.0
7-Psychological 4 0 4 1.4 0.0 0 0.0 O 0.0 O 0
&-Unkuno wn 64 0 23.3 0.0 23.3 2 O 22.2 0.0 27.2 2 0 13.3 13.3 0 2 10.0 00 10.0
9-0ther 15 0 15 5.4 0.0 5.4 2 O 2 22.2 0.0 4 26.7 0.0 26.7 0 O 0.0
Total 195 80 275 70.929./100. 7 2 9 77.8 22.2 100. 13 2 15 86.7 133 100. 12 8 20 600 400
1950 1951 1957
Number Per Cent Per Cant Number Per Cent
Evaluation Doubtful Total Certan Doubtful Total Certain Certain Certan Doub tful Total Doubtful Total Certain Doubthul
GBalloon 1 0 1 5.3 0.0 5.3 0 0.0 00 18 20 38 8.7 9.7 18.4
1-Astronomical 0 0.0 00 00 0.0 2 6 8 10 2.9 3.9
2-Aircraft 6 1 7 31.6 53 36.9 0 ao 00 0.0 41 38 79 19.8 184 38.2
3-Light Phenom. 0 0.0 0.0 0 ao 0.0 3 2 5 1.4 1.0 24
4-Birds 0 0 00 0.0 00 0 0.0
5-Clouds, Dust, efc. 0 O 00 0.0 ao 0.0 2 1 3 10 0.5 1.5
5Insuffic. inko. O 1 5.3 00 5.3 0 0 ao 0.0 0.0 18 8.7 00 8.7
7-Psychological 0 0.0 0.0 0.0 ao 0 4 1.9 1.9
8-Unkuno wn 9 0 9 474 0.0 47.4 4 0 80.0 ao 800 45 0 K5 21.7 0.0 217
3-Other 1 O 5.3 ao 1 20.0 7 0 34 0.0 3.4
Total 18 / 19 94.7 5.3 yoo. 5 O 100.9 00 400. 140 67 20767632.4100.
144

TABLE A68 EVALVATION OF ACL SIGHTINGS FOR ALL YEARS BY
NUMBER OF PER SIGHTING THREE TO TEN OBJECTS
All YEARS 1947 1948 1949
Number Number Per Cent
Evaluation Doubtful Certain Dou bt ful Total
0-Ballcon 15 10 25 42 28 20 4.0 0.0 4.0 1 / 6.7 6.7 0 O 00 00
1·Astronomical 7 12 19 20 34 54 0 O 0 00 2 13.3 133 2 77 0.0 7.7
2.Aircraft 67 38 105 106 29.4 / 4.0 00 4.0 O 3 200 0.0 20.0 9 10 88 34.7 38.5
3-Light Phenom. 4 10 14 11 2.8 39 O 0 00 00 $ 26.7 0 O o 0.0 0.0
4-Birds 6 8 14 17 22 39 O 0 00 0.0 / 2 3 67 13.3 20.0 O 1 00 3.8
5-Clouds, Dust, etc. O 0 0.0 0 00 0.0 o
6Insuffic. into. 42 0 42 00 11.8 7 280 00 28.0 O O 7 26.9 0.0
7-Psychological 4 5 03 1.1 14 / 00 40 4.0 O 0 0.0 1 1 3.8 0.0 3.8
&-Unkno wn 0 108 303 0.0803 9 36.0 360 O 2 13.3 5 5 00 19.2
10mer 23 2 25 6.4 06 20 6 24.0 00240 0 00 O O 00 0.0
Total 273 84 35776529.5100 24 1 25 96040100 7 8 15 46.7 53.3 100. /6 10 26 61.5 38.5 100
1950 1951 1952
Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Total Certain Doub'ful Dou btful
0-Balloon 2 2 71 7.1 O O 0 0.0 11 10 21 44 4.0 84
1-Astronomical 0 O 00 0.0 00 2 5 18.2 27.3 45.5 3 7 10 1.2 2.8 4.0
2-Aircraft 11 1 12 39.3 3.6 42.9 O 91 0.0 9.1 50 28 78 19.8 11.1 30.9
3-Light Phenom. 0 00 0.0 O 0.0 4 6 10 16 2.4 4.0
4-Birds o 0 00 O O 0.0 5 10 2.0 4.0
S-Clouds, Dust, etc. 5-Clouds, Dust, etc. C 0 0.0 00 O O 0 00
6-insuffic. info. 4 0 0 4 14.3 0.0 14.3 1 O 1 9.1 23 23 9.1
7-Psychological 0 0 0.0 0.0 O 00 00 3 1.2
8-Unkno wn 8-Unknown 8 0 8 0.0 286 3 O O 3 00 27.3 81 32.1
9-0ther , 1 2 2 36 36 7.2 O 9.1 00 9.1 15 15 16 5.9 0.4 6.3 0.4 6.3
Total 26 2 28 28 92.9 92.9 7.11008 3 7.1100 8 3 1172.727.3100 192 6025216.223.8100 192 6025216.223.8100
TABLE 069 IABLE 069 EVALVATION OF ALL SIGHTINGS FOR ALL OF ALL SIGHTINGS FOR ALL 4EARS YERRS B4
NUMBER OF OBJECTS PEK  SIGHTING OF OBJECTSPEK SIGHTING ELEVEN OR MORE OBJECTS
Aul YEARS 1947 1948 19 48 1949
Per Cent Number
Evaluation Certain Doub tful Total Doubtful Doubthul Doubthul Total Certain Dou btful
0-Balloon 1 2 1.1 2.2 0 0.0 0 O O 00 0.0 00
1-Astronomical 7 7 4 4 11 11 74 4.2 11.6 0 O 0.0 O / 1 0.0 25.0 0 0.0
2-Aircraft 3 6 9 3.2 6.3 9.5 0 O 00 / 250 0.0 25.0 / 5.6
3-Light Phenom. 3 0 3 3.2 00 0.0 00 0 0.0 O
4-Birds 6 1 7 6.3 1.1 14 O O 00 0.0 4 4 22.2 0.0 22.2
S-Clouds, Dust, etc. 0 0.0 O 20 0 O 00
6-Insuffic. into. 11 0 11 11.6 O 20 / O / 25.0 0.0 250 5 0 5 21.8 0.0 27.8
7.Psychological 3 1 4 32 1.1 4.3 2 12.5 O 1 0.0 25.0 / / 5.6 0.0 5.6
& Unkno wn 42 0 42 44.2 0.0 5 62.5 0.062.5 O 0.0 6 6 33.3 33.3
9-0ther 5 / 6 53 1.1 64 / 12.5 0.0/2.5 O 0.0 1 5.6 5.6
Total 81 14 95 85.314.7 10071 887.512.5100.3 / 4 715.0 25.0100. 17 1 18 94.4 5.6100.
1950 1951 1952
Per Cent Number Per Cent
Evaluation Certan Certain Total Doubtful Doubtful Doubthul
GBalloon 0 O 0.0 0.0 0 1 / 2 1.7 34
1-Astronomical O 1 50.0 0.0 50.0 0 O 0.0 6 3 9 10.3 52 155
2-Aircraft O 0 0.0 0 0.0 2 5 7 3.4 8.6 12.0
3-Light Phenom. 0 O 0.0 ao 0.0 3 O 3 5.2
4-Birds 0 0.0 O / , 20.0 20.0 2 O 2 3.4 3.4
5-Clouds, Dust, etc. 0 O O 0.0 20 0 0 0.0
6Insuffic. Into. O 0 0.0 0.0 O 1 20.0 4 4 6.9
7.Psychological O O O 0 0.0 00
&-Unknown 1 0 / 50.0 0.0 500 2 2 40.0 O 28 483 48.3
9.0ther 0 O 0.0 00 0.0 1 20.d 200 2 1 3 3.4 1.7 5.1
Total 2 O 1000 ao voa 4 1 5 80.020.0 100 48 10 58 82.817.2100.
145

-
-
TABLE EVALVATIONOERLL SIGHTINGS FOR ALL YEARS BY
NUMBER OF OBJEETS PER SIGHTING NUMBER Of OBJECTS NOT STATED -
1947 1948 194 9
Number Per Cent
Evaluation Doubtful Total Certain Doubtful [Doubtful Tot
0-Balloon 4 / 5 6.3 1.6 7.9 / 1 25.0 250 0 00 ao 0 o U 0.0 0.0 -
1-Astronomical 14 15 21.8 1.6 23.4 / 250 a0 25.0 0 1 0.0 25 2 28.6 0.0286
2-Aircraft 4 8 6.3 12.6 0 o 0 O 0.0 o 0.0 0.0 00
3-Light Phenom. 2 3 3.1 1.6 4.7 0 O 0 00 0.D 1 0.0 25.0 25.0 o 0.0
4-Birds 6 9.4 2.4 ao 0.0 0.0 0 0 O 00 00 -
5-Clouds, Dust, etc. 1 1 1.6 0.0 16 0 O 00 0
6-Insuffic. Into. 0 11 0.0 17.2 2 o 50.0 00 50.0 50.c 2 284 0.0 28.6
7-Psychological / 1 0.0 1.6 0 0.0 00 O o ao 0
8-Unknown 12 18.7 0 O 0.0 0 0.0 0.0 3 428 -
9-0ther e 2 3.1 0 0.0 0o O 0.0 00
Total 57 7 64 88.9 11.1 100. 4 0 1000 00 100. 2 2 4 50.0 50.0 7 O 100.0 0.0
-
1950 1951 1952 1
Number Per Cent
Evaluation Doubtul Total Certain Total Certain Doubtful Certan Dou btful
0-Balloon 0 0 0.0 O O 0.0 3 1 4 7.0 2.3 9.3
1-Astronomical 2 0 2 66.7 0 O 0.0 0.0 9 9 20.9 00 •|
2-Aircraft 0 O 0.0 / 1 33.3 333 4 3 7 9.3 7.0 16.3
3-Light Phenom. 0 O O 0.0 O.0 0 0.0 2 2 4.7 47
4-Birds 0 0.0 00 o 0 0.0 6 14.0 14.0
5-Clouds, Dust, etc. O 0.0 00 0 0.0 0O / 2.3 2.3 1 -
6-Insuffic. Info. 0 O ao 00 0O 2 2 66.7 3 3 7.0 0.0 7.0
7-Psychological 0 ao 00 0.0 / 1 O 1 2.3
8-Unknown 0 O O 0.0 0.0 9 0 9 209 20.9
9-0ther / O O 1 33.3 0.0 33.3 0 ao 2.3 0.0 2.3 1 -
Total O voao 0.0 100. 2 1 / 3 66.7 66.7 333 yoo. 39 4 43 90.7 9.3 1oo. /00.
|
.
146

-
TRBLE ATI EVALVATION OEUNITSI6HTINGS FOR AcL YEARS BY
NUMBER OF OBJECTS PERSI6HTING ONE OBJECT
ALL YEaeS 1947 1948 1949
Number Per Cent
Evalubon Certan Doubtful Totai Total Certain
0.Balloon 190 123 313 99 h: 4 16.3 0 5 00 88 12 22 97 8 17.8 10 3 13 5.4 1.6 70
1-Astronomical 353 221 580 84 11.8 30.2 17 6 23 29.8 10.5 40.3 27 23 50 21.8 185 40.3 28 Z4 104 15.2 41.3 565
2.Aircran 190 160 350 9.9 83 182 0 2 00 3.5 < 13 13 3.2 10.5 15 6 21 81 3.3 114
3-Light Phonon. 19 10 29 05 1.5 2 35 00 / 08 0.8 0 0 0.0 0.0
4-Birds / 01 0.1 0.2 0 O 00 20 1 2 08 1.6 e 0 0.0 0.0
5-Clouds, Dust, etc. 3 710 0.2 0.406 0 20 00 0 00 0.0 0.0
G insuffic. inio. 182 0182 950095 5 O 88 00 8.8 0 14 11.3 0.0 11.3 21 11.4
7-Psycologi cal 29 3 32 150.2 1.72 0 3.5 0.0 35 0 00 00 0 1 0.5 0.0
B-Undcnown 338 0338 1760.0176110 19.3 00 19.315 015 12.1 0.0 19 0 103 0.0 10.3
3-0ther 5922 8/3/1.1 4.2707 12.32.0 12.3 3 4 72.43.2 56 5 05 2.7 0.0
Total 364 553191771.228.8 100. 49 8 5786.0140 100. 82 42 124 661339100.99 85184 53.8 46.2 100.
1950 1951 1952
Per Cent Number Number Per Cent
Evaluation Certain Doubtful Total Doubttul Certain Doubthul Total
0-Balloon 19 5 24 11.0 2.9 139 9 3 12 7.7 2.6 10.3 135 102 237 10.7 8.1 188
1-Astronomical 39 18 57 22.7 10.5 33.2 20 11 31 17.1 9.4 22.5 222 93 315 176 7.4 250
2-Aircraft 18 9 27 10.5 5.2 157 15 7 22 12.8 6.0 18.8 133 132 265 105 10.5 21.0
3-Light Phenom. 0 00 0.0 2 1 3 17 0.9 2.6 14 9 23 11 07 1.8
4-Birds 4-Birds 00 0.0 0 0.00.0000 2 o d00 0 0.00.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 O 00 0.0 0.0 00 0 0.0,0.00.03 7100.2 0.00.00.03 7 02 0.6 0.8
6-Insuffic. Into. C-Insuffic. Into. 21 021 12.2 12.2 0.0 2.2 10010 0 10 85 0.0 8.5 111 0 111 88 85 0.08.5 111 0111 88 008.8 0088
7-Psychological 2 02 1.2 00 12 1 / / 2 0.90.9 18 23 2 251.8 25 1.8 0.2 2.0
8-Unkno wn 8-Unkuno wn 34 0 34 28 98 0.0 2.0 198 32 0 3227.30.0 273227 022718.0 32 032271.3 0.0 273227 022718.0 0.0180
9-0ther 3 4 7 1.7 2.3 4.0 5 0 5 4.3 0.0 4.3 36 19 50 2.9 3 4 7 1.7 2.3 4.0 5 05 4.30.0 4.336 19 50 2.9 1.1 4.0 1.1 4.0
Total 136 36172 79.120.9100.94 2311780.419.6100.904359126371628.4100. 136 36 172 79.120.9100.94 23 117 80.4 19.6 100. 904359 126371 628.4100.
TABLE A32 TRBLE A12 EVALUATION EVALURTION OF UNIT SIGHTINGS FOR ALL YEARS BY B4
NUMBER OF OBJECTS PER SIGHTING SIGHTING Two TwO OBJECTS
AlL YEARS All YEARS 1947 1948 1942 1949
Number Per Cent Per Cent
Evaluation Doubtul Doubtul Doubtful Total Certain Doubtful Total Doubthul Certain Dou btful
0-Balloon G-Balloon 19 17 17. 36 87 7.8 16.5 0 0 00 0.0 / 0.0 10.0 1 / / 7.1
1-A stronomical 1-Astronomical 7 7 12 12 19 19 32 32 55 87 87 1 2 2 3 14.3 28.6 42.9 / 0 0 0.0 0. a 10.0 3 4 4 21.4 286 50.0
2-Aircraft 42 38 80 19.2 17.4 36.6 1 0 / 0.0 14.3 3 O 3 30.0 300 2 14/3 14.3 286
3-Light Phanom. 4 2 6 18 0.9 21 0 0 / 10.0 0.0 00
4-Birds 0 0.0 0.00.0 0.0 00 00
5-Clouds, Dust, etc. 0 00 0.00.0 0 0.0 0.l O 00 0.0
6-insuffic. info. 19 19 87 0.087 0 0 0.0 00 0.0
7-Psychological 3 1 41.4 05 1.90 0 0 00 0.0
& Unkno wn 41 04118.80018.81 0 7 0.0 0 00 0.0 0.d 2 2 14.3
9-0ther 10 313 4.6 1.4 6.0 2 0 2 28.6 00 28.61 3 410030040.0000 0.0 0.0
Total 1457321866633.4100.52771.428.6100.7 3 10 10.0 30.0 100 8 6 14 57.142.9100.
1950 1951 1952
Number Number Per Cent
Evaluation Certain Total Doubtful Total Certain Doubtful
0Balloon / 100 00 v0.0 0 0 00 0.0 16 17 33 91 97 18.8
1·Astronomical 0 0.0 0 0.0 2 6 8 1.1 3.4 4.5
2-Aircraft 4 / 5 400 100 500 0 00 0.0 32 35 67 183 20.0 38.3
3-Light Phenom. 0 00 0.0 00 3 2 5 1.7 1.1 2.8
4-Birds 2 0 0.0 00 O 0.0 0
5-Clouds, Dust, etc. Q 2 0.0 2.0 20 0 00 0
6 insuffic inko. O 1 10.0 00 100 2 0 0.0 18 0 18 10.3 10.3
7-Psychological 0 00 00 0.0 0.0 3 1 41.7 0.6 2.3
&- Unkno wn 2 200 0.0 . 20 500 35 035 20.0
3-0ther 1 2.0 100 121 00 50.0 5 0 5 2.9 0.0 2.9
Total 9 10900 10.0100.20 210000.0 400114 61 17565.234.8100
147

-
-
TRBLE A73 EVALVATION OF VNIT SIGHTINGS FOR ALL YEARS 34
NUMBER Of OBIECTS PER SIGHTING THREE TO TEN OBJECTS -
AlL YEARS 1947 1948 1949
Number Per Cent Number Per Cent Number Per Cent Per Cent
Evaluation Certan Doubtful Total Certain Doubthui Doubt ful Certan Doubtful Certan Total Doubitful Total Certain Doubitful Doubtful Tota
G.Ballcon 14 9 23 49 32 8.1 / 0 4.8 0.0 48 O 9.1 00 9.1 0 00 0.0
1-Astronomical 5 12 17 18 4.2 I
6.0 0 00 0.0 00 0 2 0.0 182 182 1 56 5.6
2.Atreraft 54 27 8189 95 284 1 0 / 4.8 00 48 2 0 18.2 0.0 182 3 4 5.6
3-Light Phenom. 167 22.3
4 8 1214 28 4.2 0 0 00 00 O 2 18.2 182 0 0.0 00
4-Birds 5 8 1318 2.8 4.6 0 00 0.0 001 1 2 3 9.1 18.2 273 / 0.0 5.6 56 -
5-Clouds, Dust, etc. 0 0 000 0.0 00 O o 0 0 0.0 0.0
⑤ Insuffic. into. 39 0 391370.0 1375 5 23.8 0.0 238 0 0 00 0.0 o0 6 O 333 00 33.3
7-Psychological 1 3 404 11 15 0 1100 4848000 20 0.0 00 5.6 0.0 56
8 Unkno wn 18 0 78 2140.0 214 7 0 733.3 00383 10 19100915 05 278 0.0 278
9.0ther 16 2 185.6 024.3 0628.40.0286000000.0 0000000 0.0 0.0
Total 216 69 285158 24.2 100. 20 1 21 95.2 4.8 1056 11 455 54.5100 144 18 178 22.2100.
|
1950 1951 1952
Number Per Cent Number Per Cont Per Cent Number Per Cent |
Evaluation Certain Doubtful Doubthul Total Certain Doubtful Certain Total Certan Doubtul Total Dasu bt ful Total
G-Balloon 2 0 2 91 0.0 9.1 0 0 00 00 10 9 19 4.9 4.4 9.3
1-Astronomical 0 0 20.00 / 3 4 10.0 30.0 40.0 3 7 10 1.5 3.4 4.9
2-Aircraft 8 / 9 36.4 4.5 40.9 1 0 10.0 0.0 10.0 41 23 64 20.2 11.3 31.5 •|
3-Light Phenom. 0 0 00 e0ode 0.0 00 4 la 10 2.0 3.0 5.0
4 Birds 3.0
000000.0.d000 0 000000.d 0 O 0 0.0 4 5 9 2.0 2.5 4.5 4.5
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 00000.00.0000 0 0000.00.00 O e 0.0 00 0.0.00 00.0 00 0 0 0.0
5-insuffic. info. 5-Insuffic. info. 4 041820.018.2101 041820.018.21 O 1 100 100 0.010.0 23 023 10.0 0 23 11.3 0.0 0.0 - -
7-P sychological 7-Psychological 0 0 0000 00.0.d0 00 2000 00.0.d000 0.0 00 000 000 2 2 2 1.0 10
8-Unkno wn 5 0 5 22.70.0 22.7 3 0 3 300 0.0 300 57 0 57 05 22.70.0 22.73 0 3 300 0.0 30057 057 28.0 0.028.0 2.0 28.0
9-0ther 9-0ther 1 1 2 45 4.5·9.d 1 0 110.0 0.0 10.d 8 1 9 12 45 4.5 9.d 1  0 110.0 0.0 10.d 8 39 05 4.3 4.3
—
Total Total 0 2 2290.9 9.11007 3 1010.030.0100 150 5320373.9 26.1 100. 20 2 2290.9 9.11007 3 1010.0 30.0100 150 53 20373.926.1 100.
TABLE A74 EVALVATION OE UNIT SIGHTINGS FOR ALL YEARS BY
NUMBER OF OBJECTS PER SIGHTING NUMBER OF OBJECTS PER SIGHTING ELEVEN OR MORE ELEVEN OR MORE OBJECTS OBJEETS
ALL YEARS ALL YEARS 1947 1948 194.9
Number Per Cent Per Cent Number Number Per Cent
Evaluation Certain Doubtful Doubtful Total Total Certain Doub thu Exoub thu Cestain Doubotful Total Doubthul Total Certain Doubtful Doubthul Certan Doutitful Dou btful
G-Bailoon . / 1 2 1.3 1.3 2.6 2.6 0 0 0.0 0.0 0 O 00 00 0.0
1-Astronomical 1-Astronomical E1 00 0.00.0
4 4 8 6.1 5.1 10.2 0 0.0 0 1 / 25.0 25.0 0 0.0
2-Aircraft 3 6 9 38 2.6 11.4 O 0 00 0.0 / Q 1 25.0 / 0.0 7.7
3-Light Phenom. 3 0 3.8 0.0 38 0 00 O 0 0.0 0.0 00
4-Birds 4 / 5 5.1 1.3 6.4 0 00 0.0 0 O Q 2 15.4 0.0 15.4
5-Clouds, Dust, etc. 0 2 0.0 0.0 C 0.0 00 O 0 O 0 0.0 0.00.0 0
5-Insuffic. into. 0 10 12.7 0.0 0.0 0.0 0.01 O 25.0 a0 2504 O 30.8 0.0 30.8
7-P sychological 3 / 4 58 1.3 5/1 1212.512.52501 01 25.0 0.02501 7.7 0.077
8&- Unkno wn 32 032 40.5·0.040.5 5 0542.5 0062.5 0 0 0 0.0000.0 404308 0.0 30.8
9-0ther 5 1 6 6.3 1.3 2.6 1 01 12.5 0012.5 0 00 0.0 0.0 0.0 1 0 1 7.7 0.0 7.7
Total 65 14 1982.317.7 100 71881.512.5100. 31495025.0100 12 1 1392.377100
1950 1951 1952
Number Per Cant Number Per Cent Number Per Cent Per Cent
Evaluation Certan Doubtful Total Certain Doubthul Doubt ful Total Doubthul Certain Doubtful Doubtful Total Doubthul
GBallioon 0 00 0.0 0 0.0 / / 2 21 2.1 42
1-Astronomical / 0 / 500 0.0 50.0 0 0 0.0 00 3 6 6.4 12.8
2-Airciaft 0 00 0.0 0 0 0.0 2 5 7 4.3 10.6 14.9
3-Light Phenon. 0 00 0 0.0 3 0 3 6.4 6.4
4-Birds 0 2 00 0.0 0.0 0 1 / 00 20.0 2 O 4.3
-Clouds, Dust, etc. 0 00.00 00 0 20 0.0 00 0 O 0.0
6 insuffic. into. 0 0.0 00.00 / 0 120.0 0.0 20.0 4 0 4 85 00 85
7.Psychologica 0 0.0 0.00000 0 0.0 2.0 0 00 0.0 0.0
&-Unkno wm / 0 1 2000 500 2 0 2 40.0 0.040.020 0 20 42.5 0.042.5
3-0ther 0 0.0000.00120.00.020.02 / 3 4.3 2.16.4
Total 2 0 2100000100 41580.0 200100. 3710 4718721.3 100.
148

TABLE A75 EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY
NUMBER OBJECTS PER SIGHTING NUMBER OF OBJECTS NOT STATED
ALL YEARS 1947 1948 1949
Number Per Cent Number Per Cent
Evaluation Certan Certain Cartain Doubthul Total Doubtful
0-Balloon 4 5 73 18 21 O 25.0 0 0.0 0 0.0
1-Astronomical 14 / 15 255 18 273 25.0 0 1 0.0 25.0 250 2 D 2 286 28.6
2-Aircraft 3 4 7 54 73 12.7 0 O D 0 0.0 00 0.0
3-Light Phenom. 2 / 3 36 18 5.4 O 20 1 00 25.0 0 0.0 0.0
4-Birds 3 3 5.4 I D 0 0.0 00 2.0
S.Clouds, Dust, etc. 0 00 00.00 0 00 0 0.0
© Insuffic. info. 11 20.0 00.20.0 0 500 0.0 50.0 20050.0500 2 0 2 28.6 0.0
7-Psychological 0 1 / 00 18 1.8 0.0 2000000 0 2 0.0 0.0
8 Unknown 8 0 145 0014.5 ee 00 0.00.0 0 000.000 00 3 0 3 42.9 0.0
90ther 2 02 36 0.0 3.6 0000.00.0 0.0 0000.0,000.0000 0.0
Total 47 855855145100.40410000.0100. 2 2450.050.0100.70710000.0100
1950 1951 1952
Number Per Cent Per Cent
Evaluation Doubtful Total Doubthul Certain Dau btful
0-Bailloon 2 2 0 0.0 0 0.0 3 4 8.8 2.9 11.7
1-Astronomical 2 0 2 667 0 0.0 00 9 O 9 26.5 265
2-Aircraft 0 2 00 0 / / 0.0 33.3 3 6 8.8 17.6
3-Light Phenom. 0 00 0000 0 0.0 2 5.9
4-Birds 4-Birds 0 0000 2 O 00 0 0.00.0 0.0 003 3 038.8 3 8.8 0.0
S-Clouds, Dust, etc. 0 00 0000 0.0 0000.0 0 0.0 0.000d0.0 0.000
6-insuffic. Info. 0 0.00000 0.0 0000 2 0 2 66.70.0 467 3 0 38.8 2 02 0470.0467 3 0 38.8 0.08.8 0.088
7-Psychological 0 0.00000 0.0 0.000 0 00 02 0.00.000010029 2.9 0.00.0000 1100 2.9 2.9
8-Unknown 8-Unknown 0 00 0 0 000.00.0 0 0 00.00.000502470.0147 00 0.00.00 0 00.00.00050214.7 0.0147
9-0ther 1 0 1 333 0.0 33.3 0 0 0 0.00.0 0.0 1 0 1 2.9 0.0 2.9 / 0 13330.033.3 0 0 00.0 00 0.0 1 0  2.9 0.0 2.9
Total 3 0 3 100.0 0.0 100. 21 36.733.3100. 29 5 3485.314.7100. 3 0 3 100.0 0.0 100. 21 3 64.733.3100. 295 3485.314.7 100.
•
149

-
I
TABLE R74 EVALVRTIONOF OBIECT SIGHTINGS FOR ALL YEARS BY
NUMBER Of OBJECTS PER SIGHTING ONE OBJECT I
TOTAL 1947 1948 1949
Number Per Cent Per Cent Number Per Cent
Evaluation Certan Doubtful Total Doubtul Total Doubtful Certain Certan Doubtul Total Certain Doubtful Total Doubthul Tota
0.Balloon 124 109 285 08 6.7 175 5 0 5 111 0.0 111 10 20 8.7 87 17.4 10 2 12 6.9 1.4 8.3 I
1-Astronomical 248 178 426 152 10.9261 7 6 13 15.6 13.3 289 25 19 44 217 16.5 38.2 23 52 75 15.8 35.8 516
2.Aircraft 174 143 317 10687193 O 2 00 4.4 4 13 78 3.5 11.3 15 6 21 10.3 4.1 14.4
3-Light Phesom. 12 7 24 100414 0 2 4.4 00 O 1 0.0 0.9 0 0.0
4·Birds 00
/ 1 2010102 0 0 00 0.0 ad 109 09 1.8 0 0.0 00
5Clouds, Dust, etc. 3 7 10 0.2 04 06 0 0.0 00 2 0.0 00 2 O
5 Insuffic. into. 149 019 103 00103 5 05 11.1 0.0 1.114 014 12.2 0042.2 16 11.0 0.0
7.Psychological 28 3 31 1.70.2 19 2 0 2 4.4 00 4.40 00 0.0 0.0 1 0 0.7 00
B Unknown 292 0.2471820.01821001022.2 0.0 22.214 014 12.2 00 12.2 15 015 10.3 0.0 1
1.0ther 57 18 75 351.1 4.6 6 0 6 13.3 0.0 13.3 3 4 7 2.6 3.5 0.0 34
Total 1170 466 163671.5 285100 37 8 45 82.2 17.8 100. 77 38 11547.0 530 100 8560145 58.7 41.3 100
|
1950 1951 1952
Number Per Cent Per Cent Number Per Cent Number Per Cent |
Evaluation Certain Doubtful Total Certain Doubthul Total Doubtul Doubtful Doubtful Total Certan Doubthul Total Certain Dou biful
G-Balloon 18 22 129 2.9 158 8 3 11 7.8 10.7 125 90 215 11.5 83 19.8
1-Astronomical 24 14 38 17.1 10.0 27 1 15 11 26 147 10.8 255 154 Z4 230 14.1 70 21.1
2-Aircraft 14 7 21 10.0 5.0 15.0 14 20 137 5.9 196 122118 240 11.2 10.8 22.0 •
3-Light Phenom. 2 0 0.0 00 1 2 10 1.0 2.0 13 19 1.2 06 1.8
4-Birds 4-Birds 0 21 200000:0.d0 0 0 00 0.0 0 000.00 0.0 0.0 0 0 0 00 0.0 00
5-Clouds, Dust, etc. 0 00 00 0.0 a.0 0 00 0.0 2 0 00 0.0 3 7 10 003 710 0.3 0.6 0.9
5-Insuffic. into. 5-Insuffic. Into. 21 21 021 15.0 0.0 15.0 10 0 10 0 10 98 00 9.8103 0103 9.5 00 95 9.5 1 -
7-Psychological 2 02 0 2 1.4 00 0.0 14 1.4 / 10 1.0 10 2.0 22 2 24 1.0 2.0 22 2 24 20 2.0 0.2 2.2
8 Unkno wn 8-Unkno wn 31 0 31 31 031 22.1 0.022.1 27 027 22.10.0 22.1 27 027 26.5 26.5 0.0265200 0200 0.0 265200 0200. 184 00 00
9-0ther 2 5 2.11.4 3.5 4 0 4 2.1 14 354 04 39 0.0 3.9 36 1248 39 0.0 3.9 36 12 48 3.3 11 4.4 3.3 11 4.4
Total 11327140807 19.3100.802210278.421.6100.778311 108971.4286100. 1132714080.719.3100.802210278.421.6100.778 311 108971.4286100.
TABLE A77 TABLE AT7 EVALVATION OF OBJECT EVALVATION OEOBJECT SIGHTINGS SIGHTINGS FOR ALL YEARS FOR ALL YEARS BY
NUMBER  OF OBJECTS NUMBER OF OBJECTS PER SIGHTING Two Two OBJECTS
TOTAL 1947 1948 1949
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doub hul Certain Total Doubtul Doubtful Doubttul Doubttul Doubtful Total Certain Doubttul Total Doubtful Total Certain Total Dou btful Dou bthul
G-Balloon 17 14 31 31 81 71 15.8 0 0 0.0 0.0 00 / / 0 11.1 111 0.0 11.7 11.1 1 77
1-Astronomical 6 6 117 17 31 5.6 56 87 8.7 / 1 2 3 3 14.3 14/3 28.6 42.9 42.9 0 0 0.0 0.0.od 3 0d 3 231 23.1 46.2
2-Aircraft 2.Aies 40 31 11 204 158 36.2 / 0 / 143 00 14.3 3 D 3 33.3 333 2 4 15.4 15.4 30.8
3-Light Phenom. 4 6 20 10 3.0 0 O 0 0.0 00 O / 11.1 0.0 110 0 0.0 00
4-Birds 0 00 led 0000 0 0 00 0.0 20 0.0
S-Clouds, Dust, efc. 0 0000 0.000 2 0.0 0.0 00 0 0.0 00
6-Insuffic. into. 18 01892 009.2 O 0 00 0.0 00 0 0.00 0 0.0 00
7-Psychological 3 1 41.50.5 2.0 0 0 00 0.0 0 0 00 0.0 000 0.0
8 Unkno wn 37 0 37189 0.0 189 1 01 14.3 0.0 00 0.02 0 2154 154
9-0ther 9 31244 1.5 61 2 0 2286 00 28.6 3411.1 33.3 44400 000
000.0
Total 134 62 196 684 31.6 100 5 27 71.4 28.6 100.6 39 64.7333 100. 8 5 1361.5 38.5 100.
I
1950 1951 1952
Number Per Cent Number Per Cent
Evaluation Certann Doubtful Total Certain Doubtful Total Total Certain Doubtful Doubtul Total
G-Balloon 1 0 10.0 0.0 0 14 28 90 9.0 180
1-Astronomical 0 0 0.0 0 0.0 2 6 8 1.3 39 5.2
2-Aircraft 4 / 5 40.0 10.0 500 0 0 0.0 0.0 30 28 58 9.4 181 375
3-Light Phenom. 0 0.0 0.0 0 O 3 2 5 1.9 13 32
4-Birds 0 0.0 0000 O 0 0.0 0.0 00 0.00.0
5-Clouds, Dust, etc. 0 0.000.00 0 00 0.0 0.0 0el 000.0
insuffic into L 0 / 100.00100 2 e0 0.0 0017 0 17 1.0 0.011.0
7-Psychologcal 2 0 0.000.00 0 0 00 0.0 0.0 3 1 4 1.9 06 2.5
& Unkuno wn 2 2000.0.200 10150.0 0.0 50.0 31 0 31200 0.0 20.0
3.0ther / 2 0.00.0·10.0 050.00.0 50.0 4042.6 0.0 2.6
Total 91 1090010.0100.20 210000.010010451155671329100
150

TABLE A78 EVRLUATION OE QBJECT SI6HTNGS FOR aLL YEARS BY
NUMBER OF PER SIGHTING THREE TO TEN OBJECTS
TOrAL 1947 1948 1949
Number Per Cent
Evaluation Certain Doubtul Total Certain Doubtful Total Certain Total Doubtful Total Certain Doubtful Tota
0 Ballaon 10 7 17 39 27 6.6 0 5.6 00 5.6 / 1 2.1 0.0 81 0 0 0.0
1·Astronomical 5 1217 2.0 476.7 0 0.0 00 2 18.2 18.2 O / 0.0 6.7
2-Atrcraft 4627 13 18.0 10.6 286 1 0 / 5.6 0.0 O 2 18.2 182 1 3 4 6.7 20.0 26.7
3-Light Phenom. 48 12 1.6 3.1 4.7 0 00 0.0 2 2 0.0 18.2 0 o
4-Bids 5 813 2.0 31 51 0 0.0 0.0 2 3 9.1 18.2 27.3 1 6.7
5-Clouds, Dust, etc. 00.00.000.0.0 0 0.0 0.0 0 00
5insuffic. into. 34 0 34 133 0.0 13.3 5 5 27.8 0.0 0 O 000.00.0 5 33.3 0.0
7-Psychological 1 340.4 1.2 1.60 1 0.0 5.6 5.6 O 0 000.0001 O / 6.7 0.06.7
&-Unikno wn 700 70 22.4,0.0 22.57 0 7 38.9 0.0 3891 019.1 00 9.130320.0 0.0 20.0
9.0ther 13 2 15 5.10.8 5.9 3 0 3 16.70.0 16.7 00 0 0.0 0.00.0 0 0 0 0.0 0.00.0
Total 188 67 255 73726.3 100 17 1 18 44.4 5.6 100. 5 6 11 45.5 54.5 100 11 4 15 73.3 26.7 100.
1950 1951 1952
Number Per Cent Number
Evaluation Certain Doubtful Certain Total Doubthul Total
0-Balloon 2 12.5 0.0 0 0 - 7 13 3.2 3.8 7.0
1·Astronomical 0 0 o0 20 00 1 3 4 10.0 30.0 40.0 Z 10 1.6 3.8 5.4
2-Aircraft 4 / 5 250 6.3 31.3 / 0 1 10.0 0.0 1D.0 37 23 60 20.0 12.4 32.4
(3-Light Phenom. ad 0.000 0 0.0 0.d 0.0 4 6 10 2.2 3.2 5.4
4-Birds 00.00.00.d 0 0 0 0.0 4 5 9 2.2 2.7 4.7
5-Ciouds, Dust, etc. 0 00000000 0 0.0 0.0 0.00 O 00 0.0
5-Insuffic. info. 6-Insuffic. info. 0 2 12.5 0.0 12.51 e 1 10.0 0.040.021 0.0400 21 0 21 11.3 0.0 0.0 11.3
7.Psychological 00.00.0.0.0 2 0 0.0.0.0.0.020 0 0 0.00.0 2 2 0.0 1.1
8 Unkno wn 5 0 5 31.20.0 31.2 3 0 330.0 0.030.0 51 0 5 31.2 0.0 31.2 3 T 3. 30.0 0.0 30.051 e 51 27.5 00 0.0 21.5
9-0ther 1 263 6.312.6010.00.040.08 263 6.3 12.61 0 1 10.00.040.0 19 9 4.3 0.5 48
Total 14 2 16875 12.5100.7 31070030.0100.1345118572.5275100 14 216 875 12.5100.7 3 1070.030.0 100. 134 51 185 72.5 275 100
TABLE A79 EVALUATION OF OBJECT SIGHTINGS EVALVATION OF OBJECT SIGHTINGS FOR ALL FOR ALL YEARS YEARS BY
NUMBER OF OBJECTS PER OF OBJECTS PER SIGHTING SIGHTING ELEVEN ELEVEN OR MORE OBJEETS
TOTAL 1947 1947 1948 1948 1949
Number Number Per Cent Per Cent
Evaluation Evaluation Certain Doubtful Total Doubtful Doubthul Total Certain Dou btful Dou btful
0-Bailoon 0-Balloon / 2 1.5 1.5 30 30 0 0 0.0 0.0
1-Astronomical 4 4/ 3 7 6.1 4.5 10.6 0 Q Q 0 / 1 25.0 0 0.0 0.0 0.d
2-Aircraft 2 6 8 30 9.1 12.1 0 0 0.0 / 1 25.0 0.0 / 12.5 12.5
3-Light Phenom. 0 3 4.5 4.5 0 0.0 O o 00
4-Birds 3 / 4 4.5 1.5 6.0 0 O 00 0.0 2 2 25.0 250
S-Clouds, Dust, etc. 0.0 0 0.0 O
5-Insuffic. info. 8 812.1 0.012.1 0 0.0 / 0 / 00 2 25.0 0.0 250
7-Psychological 3 / 4 4.5 15 4.011 2 16.7 33.4 / 0 25.0 0.0 12.5 12.5
& Unkno wn 25 02537.9 0.0 379 4 0 464.7 66.70 0 0 0.0 00 1 12.5
9-0ther 4 15 61 15·76 0 0 0 00 00 0.0 0 00 0.0 0.0 1 / 12.5
Total 53 13 66 803 19.7100.5 1  6 83.3 16.7 100. 3 1 4 75.0 25.0 10071887.512.500.
1950 1951 1952
Per Cent Per Cent Number
Evaluation Certaun Certain Doubtful Total Total Certain Doubthul Doubtful Total
0-Balloon 0 22 0.0 0.0 / 2 2.4 4.8
1-Astronomical / 1 52.0 0.0 50.0 0 0 3 2 5 7.3 49 12.2
C 2-Aircraft
0 0.0 0.0 0 1 5 6 2.4 12.2 14.6
3-Light Phenom. 0 0.0 0 3 3 7.3 0.0
4-Birds 0 0 12 0.0 0000 O 20.0 20.0 1 / 2.4 0.0
5-Clouds, Dust. etc. 00 22 0.0 0 0 0.d 0.0 O 0.0
6 Insuffic into. 2.00 0.0.001 0 / 0.0 20.0 4 0 98 0.0 9.8
7.Psycholog cal 2.0.2 0.000.0.0000 0.00.00 0 0.0
& Unkno wn 10 1 50.00.050.02 0 2 400 0.040.0 17 0 17 0.0 41.5
90ther 2 2020.0.00.01020d0.0 20.0 21 3 4.9 2.4 7.3
Total 2 0 210000.0100 41580.020.0100 32 9 4/78.022.0100
151

-
-
TEBLE A80 EVALUATION OF OBJECT SIGHTINGS EOR ALL YEARS 84
NUMBER OF OBJECTS PER SIGHTING, NUMBER OF OBJECTS NOT STATED -
ALL YEARS 1947 1948 1949
Number Per Cent Number Per Cent
Evaluation Certan Certain Doubtful Total Certain Doubtful Total
0 Balloon 3 1 4 6.5 2.2 87 1 33.3 00 33.3 0 0 00 0.0 0.0 -
1-Astronomical UL / 12 239 2.2 26.1 0 20 1 00 25.0 2 2 40.0 0.0
2-Aircraft 3 2 5 6.5 43 10.8 0 0.0 0.0 O 0 0.0
3-Light Phenom. 2 1 3 4.3 2.2 6.5 O 0 00 00 0.0 C 25.0 250 0 O 0.0 0.c
4-Birds 3 65 6.5 0 0 00 O 0.0 o 0.0 -
5-Clouds, Dust, etc. 0 0 0.0 o 0.0
insuffic. into. 11 23.9 0.0 239 667 46.7 0 2 50.0 0.0 sa0 0 2 40.0 0.0
7-Psycho lo gi cal / 2.22.2 00 e.e 0 0.0 0.000 Q
8-Unkno wn 051090.0109 o 0.0 00 0 0.000 101 20.0 -
5
3-0ther 2 02 4.30.0 430 00 oe 000.0 0 0.00.0000 0.0
Total 40 6 46 87013.0100. 3 0 3 1000 0.0100. 2 450.050.0100. 50 5100.00.0100.
-
1950 1951 1952 1
Per Cent Per Cent Number
Evaluation Total Certain Doubtful Certain Total Doubtful Doubthul Dou btful
0-Balloon 0 20 0 0.0 0.0 2 / 3 6.5 3.2 9.7
1-Astronomical 0.0 e.0 0 0.0 9 290 29.0
2-Aircraft 7 0 12 00 00 0.0 0.0 ? 2 5 9.7 6.5 16.2
3-Light Phenom. 0 0.0 0 0.0 2 6.5
4·Birds 0 0d0.000 od 0000 0 0.0 0.00.03 3 9.7 0.0 9.7
S-Clouds, Dust, etc. 5-Clouds, Dust, etc. 00 0 0000.00 20 00.00 0 0.d0.0e20 0.00.0 0.0 1 -
6-Insuffic. Info. 6-Insuffic. Into. 00 00.00.00.02 0 0.00.0 0.0 2 0 100.00.0100.0 3 03 voo.0 0.0100.d 3 3 0.0 9.7 9.1
7.Psychological 0.00.000000 0 0 00.d00000 0 0.00.00.0011 0.00.00.00 0.0 3.2 3.2 3.2
8-Unknown 0 00 0.000.0.000 0 0.d0.00.04 0 4 000.000.0.00 00 0.00.00.0 404 12.9 0.012.9
9-0ther / 1 21100000100.00 0 0 0.00.0 0.01 01 3.20.0 3.2 21100000100.00 0 0 0.00.00.01 01 3.20.0 3.2 1 1
Total 1 0 1 100.00.0100. 2 0 2 V00.0 0.0 100. 27 4 3/87.112.9100. 0 1100.0 0.0100. 2 0 2 400.0 0.0 100. 27 4 3/87.1 12.9100.
1 1
| |
0
152

of one
reports of SINGLE OBSERVATIONS and the one
most representative report from each MULTIPLE
OBSERVATION.(2) The questionnaire, work
sheet, and IBM card representing the report for
each SIGHTING accepte the statistical study.
=- from the most reliable observer of that
8

TABLE A81 ENALVATION OE ALL SIGHTINGS By OURATION OF SIGHTING
ALL YEARS
5 SECONDS AND LESS 6-0 SECONDS 11-30 5ECOUDS 3 1-60 SECONDS
Number Per Cent Per Cent Number
Evaluation Certmn Doubthul Total Certain Doubtful Certain Total Certan Doubtful Total Certain Ooubtful Tota
0-Ballaon 3 7 10 0.7 16 23 3 5 8 1.8 3.0 48 7 12 19 2.6 4.5 7.1 9 11 20 4.6 5.6 10.2
1-Astrononical 143 286 327 32.7 659 44 28 72 263 16.8 43.1 46 17 63 17.4 6.4 238 15 10 25 77 5.1 12.8
2-Aircraft 28 56 64 128 24 14 38 14.4 8.4 228 46 36 82 17.4 136 31.0 39 22 71 19.9 11.2 31.1
3-Light Phenon. 2 4 0 5 05 1.0 1 0.6 2.4 30 / 2 3 0.4 0.8 12 0 0.0 1.0
4-Birds 2 4 6 0.5 09 1.4 1 0.6 0.6 1.2 1 2 0.4 04 0.8 6 1 7 3.1 0.5 3.6
S-Clouds, Dust, etc. 1 2 0.2 0.2 04 0 0 00 0.0 2 0.8 0 0.0 0.0
Gimewffic Irb. 0 19 43 0.0 4.3 q 1 5.4 0.0 16 00 6.0 13 0 C6 0.0 66
7-Psychologi can 2 0 2 0.5 00 0 0.0 5 3 8 1.9 1.1 30 0 2 0.0 1.0
3-Unkano wn 39 0 89 8.4 31 186 0.0 186 0 56 21.1 0.D 21.0 0 61 31.1 0.0
3-0ther 10 3 13 23 0.7 3.0 2 0 1.2 0.0 5 9 14 19 3.4 5.3 3 2 1.5 10 2.5
Total 249188 437 5 70, 430100. 115 52 167 68.9 31.1 100 183 82 265 69.1 30.9 100 148 48 196 75.5 24.5
61SECONDS -5 MINUTES 6-30 MINUTES OVEA 30 MINUTES Nor STATED
Number Per Cent Number Per Cent Per Cent Number
Evaluation Certain Doubtful Total Certain Doubtful Total Doubful Total Doubtful ertain Total Certain Doubtful Total Certan Doubttul Dou btful
0-Balloon 65 43 108 12.8 8.5 21.3 82 58/40 15.6 11.0 26.6 42 12 54 16.9 4.8 21.7 59 32 91 6.9 3.8 10.7
1-Astrononical 11 16 27 2.2 3.1 5.3 43 12 60 82 3.2 11.4 37 17 54 14.9 6.8 21.7 137 93 230 16.1 10.9 27.0
2-Aircraft 77 61 138 15.2 12.0 272 45 63/06 8.2 12.0 20.2 13 15 28 5.2 60 11.2 84 49 133 9.9 5.8 15.7
3-Light Phenom. 3-Light Phenom. 7 4 4 11 11 1.4 1.4 0.8 0.8 22 22 15 6 6.21 2 2.8 2.8 1.1 1.1 3.9 3.9 - , ? ? 3 04 0.4 0.8 12 1.2 5 5 2 2 7 0.6 0.2 0.8
4-Birds 0 1 0.2 0.0 02 0 0.0 0.2 0.2 3 1.2 0.0 1.2 5 5 2 7 0.6 0.8
S-Clouds, Dust, efc. 1 7 8 0.2 1.4 1.6 1.6 3 2 5 0.6 0.4 1.0 0 4 4 1.C 0.0 1.6 3 1 - 4 0.4 0.4 0.1 0.1 0.5
6-Insuffic. info. 44 44 87 0 8.7 39 039 0.0 7.4 15 0 6.0 0.0 143 0 143 16.8 16.8
7-Psychclogical 5 4 9 1.0 1.0 0.8 1.8 11 011 2.1 00 0.0 2.1 5 1 6 6 2.0 0.4 2.4 8 2 10 0.9 0.9 0 1.1
8-Unkunown 8-Unkno wn 141 0 149 27.6 27.6 0.0 119 0119 72.6 72.6 0.0 0.0 226 66 66 26.5 26.5 0 177 177 20.8 0
9-0ther 19 3 22 3.7 0.6 0.6 4.3 16 825 425 3.0 1.7 4.7 13 3 5.2 1.2 6.4 44 444 6 50 0.7 0.7 5.9
Total 370 138 508 72.8 72.8 27.2 100 371156527 70.4 29.6 100. 100 199 199 50 249 79.9 20.1 100.665187 100. 665187 852 78.1 21.9 100.
TABLE A82 TABLE 882 EVALUATIONOF EVALUATION OF ALL ALL SIGHTINGS 84 84 DURATION OF SIGHTING DURATION OE SIGHTING
1947
5 SECONDS AND LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS 31-6O SECONDS
Number Per Cent Num ber Number Per Cent Per Cent
Evaluation Certain Doubthul Doubthul Total Certain Total Certan Doubtul Dou bitful Dou biful Certain Doubtful Total Doubthul Certan Doubttul Dou btful Dou biful
G-Balloon G-Bailoon 0 0.0 0.0 0 00 00 / 1 6.2 6.7 0 0 0.0
1-Astronomical 9 a , 10 81.8 010 9.1 a 90.9 o 6 8 75.0 25.0 100D 4 0 250 00 2 3 12.5 37.5
2-Aircraft 0 0.1 l 0 0.0 00 - 1 00 6.2 0.0 12.5
3-Light Phenom. 0 0 0.0 O 00 0.0 00 00 0.0 0 Δ 0.1
4-Birds 0 0 0.0 0.0 2 00 ad 0 0 0.0
5-Clouds, Dust, etc. 0 0 0.0 0.9 D 0.d 00 0 0.0 0 0.0
6-Insuffic. into. ) 0 0.0 0 2 00 00 0 0.0 12.5 a 0 0.0
7-Psychological 0 00 0.0 a 0 Od 0.0 0 1 0.0 6.2 6.2 1
8-Unkunown 0 o 0.0 0 ad 00 0.0 6 37.5 0.0 4 0 4 50.0
9-0ther - 0 , 9.1 00 0 a 0.0 0 / 62 6.2 0 0 0.0 00
Total 10 1 1/ 90.9 9.1 180. 6 28 75.0 25.0/00. 14 2 16 87.5 12.5 100. 6 8 75.0 25.0 100.
61SECONDS -5 MNUTES 6- 30 MINUTES VER 30 MINUTES NoT STATED
Nosmber rer Cent Number Per Cent Per Cent
Evaluation Certan Doubtful Total Certain Doubtful Tota! Certain Total Doubtful Total Doubtful
G-Balloon 2 C 2 20.0 00 200 0 0.0 4 0 4 6.8 6.8
I-Astronomical 0 00 0.0 0.0 0 0 0.0 1 4 15 18.6 6.8 25.4
2-Asrcraft 6 00 0.0 0.0 0 0 0.6 0 2 3.4 00 3.4
3-Light Phenom. / 10.0 00 0 0 0.0 E / 1.7 00
4-Birds 0 0 00 0.0 4 0.0 00 $$ vv 0 0.0
5-Clouds, Dust, etc. 0 0 00 0.0 0.0 8 0 00 0.0
5 insuffic. wo. 2 2 200 20.0 0 3 60.0 0.0 60.0 0 7 11.9 00 114
7-Psycho logi cal e 0 00 00 0.0 2 0.0 3 1 4 5.1 1.7 6.8
8-Unkno w 0 4 00 400 Q 2 40.0 0.0 40.0 102 0 12 20.3 20.3
3-0ther 0 / 10.0 10.0 0 O 0.0 0.0 14 23.7 00 237
Totan 10 010 100. 0.0 100 5 0 100.0 0.0 100. 54 5.559.5 8.5 100
153

1
1
TRBLE A83 EVALVATION OEALL SIGHTINGS BY OURATION OF SIGHTING |
1948
5 SECONDS AND LESs 10 11-30 31-60 SECONDS
Per Cent Number Number Per Cent
Evaluation Doubtful Total Certain Doubt ful Doubtful Total Certain Doubtful Total
0-Balleon / 2 3 29 5.9 1.3 8 / 1 0.0 5.6 0 167 16.7 0 0.0 00 -
1-Astronomical 6 17 176 32.4 500 4 2 6 22.2 11.1 333 1 / 8.3 8.3 0 0.0 10
2.Avrcraft 2 2 7.0 5.9 0 0 0.0 / 8.3 00 3 0.0 60.0
3-Light Phenom. 1 2.9 2.4 0 Y 4 0.0 22.2 1 8.3 0 0.0
4-Birds / 2.9 2.9 0 0.0 0.0 0 0.0 0 1.0 -
5-Clouds, Dust, etc. 0.0 00 0 0 0 00 0.0 0.0
6 insuffic. info. 2 5.9 0.0 5.6 0.0 56 , 01 8.3 00 1 0 / 20.0
7.Psychological 0 00 0n 00 0.0 0 0.0
8 Unkno wn 2 0 7 20.6 206 0 6 33.3 5 3 00 41.7 8 0.0 0.0 D.P
9.0ther 0 0.0 2.9 2.9 e 0 4 / 00 8.3 1 0 / 20.0 20.0
Tota 20 1434 58.8 41.2 100 11 7/8 61.1 38.9100. 2 5/2 58.3 41.7 100. 5 8 100.0 0.0 100. |
61 SECONOS-5 MINUTES 6-30 NUTE3 OVER 30 NOTE Nor StaTED 1
Number Per Cent Number
Evaluation Certan Certain Doubtful Total
0-Balloon / 4 S 6.7 26.7 33.4 3 3 8 13.0 21.7 34.7 0 6 0.0 50.0 6 12 7.0 14.0
1-Astronomical / 2 3 6.7 13.3 20.0 7 30.4 4.3 34.7 y 0 4 33.3 00 33.3 1Y 22 36 16.3 25.6 41.9 •|
2-Aircraft 3 1 4 20.0 6.7 26.7 / 2 4.3 4.3 8.6 0 8.3 0.0 5 8 5.8 3.5 9.3
3-Light Phenom. 0.0 0 0.0 4.3 0 P.0 ∂ / 1.2
4-Birds 0 0.0 / , 4.3 4.3 C O 0 00 00 0.0 1 / 2 3 1.2 2.3 3.5
5-Clouds, Dust, etc. a 0 0.0 00 0.0 0 0
6 Insuffic. Into. 6 insuffic. Into. 2 2 13.3 13.3 / / 0 / 4.3 0.0 0 0 /1 8 1/ 12.8
7-Psycho logi cal 7-Psycho logi cal 0.0 0 1.0 0.P 0.P 1 8.3 8.3 0 0.9 0.0 --
8-Unkunown 8-Unkuno wn / 01 6.7 0.0 6.7 0 0.0 0 0 9.0 8 9.3 --
9-0ther 0 2 2 0.0 8.7 8.7 0 0 0.0 3 47 4 7 3.5 4.7 8.2
Tutal 8 g 715 53.3 46.7100. 131023 56.5 43.5 100. 100 12 0 3 100.0 0.0 0.0 48 3886 48 3886 55.8 442
TABLE A84 TABLE A84 EVALYATION EVALHATION OE ALL QE ALL SIGHTINGS BY DURATION OF SIGHTING SIGHTINGS BY DURATION OF SIGHTING - |
1949
5 SECONDS AND LESS 5 SECONOS AND LESS 6-10 SECONDS 11-30 SECONDS 11-30_5ECONDS 31-60
Number Per Cent Number Per Cent
Evaluation Certain Doubthul Total Doubtful Doubtful Certain |
0-Balioon 0-Bailoon 0.0 0 0 0 0.0 0.0 0.9
1-A stronomical 1-Astronomical 1283 12 8 3 95 11.4 11.4 79.0 90.4 0 6 6 0.0 42.9 4.29 6 3 12 30.0 30.0 C0.0 CO.0 3 1 4 10.7 3.6 3.6 14.3 14.3
2-Aircraft 0 4 Y 0.0 3.8 3.8 1 / 7.1 2 10.0 0.0 2 0 7 25.0 25.0
3-Light Phenom. O O 0.0 0 0.0 0.0 0
4-Birds / 0.0 1.0 1.0 7.1 0 0 0.0 3 3 10.7 10.7
S-Clouds, Dust, etc. 0 ( 0.0 D 0 0.0 0.4 1
5-Insutfic. into. 4 0 4 3.8 9.0 3.8 0 / 0.0 7.1 1 1 5.0 0.0 5.D 1 3.C 0.0 3.6
7-Psychological 8 0 0 0 0.0
8-Unkno wn 0 1 1.0 0.0 1.0 Y 4 28.6 ST d 5 25.0 13 0 13 46.4 0.0 46.4
9-0ther O 0.0 0.0 / / 7.1 0 0 0.0
Total /788/05 16.2 83.8 100. 7 7/4 50.0 100. 146 20 70.0 380 27 1 28 96.4 3.6
6ISECCNDS-5MINVTES 6-30 MINUTES OvER 30 MINUTES NoT STATED
Per Cent Number Per Cent
Evaluation Doubtul Doubtful Certain Doubtful Doubthul Dou btful Total
G-Balloon 9 1 10 23.7 2.6 26.3 2 4 6 4.4 8.9 13.3 0 0.0 0.0 5 5 3.9
1-Astronomical 5 7 5.3 13.2 18.5 6 0 13.3 0.0 3 / 4 176 5.923.5 42 30 72 32.8 23.4 56.2
2-Aircraft 7 2 9 18.4 5.3 23.7 5 13 18 11. 1 28.9 40.0 0 / 1 0.0 5.9 10 5 15 7.8 3.9 11.7
3-Light Phenom. 0.0 0 0 0.0 0.0 00
4-Birds 0 C 0 0.1 l 0.0 00
5-Clouds, Dust, etc. 0 0 0.0 0.0 0 0.0 00
6 Insuffic. into. 6 0 6 15.8 0 2 4.4 0.0 1 1 0.0 5.9 20 2.0 15.6 15.6
7-Psychological 0 0 0.0 1 1 2.2 0.0 0.D 2 1.6 1.6
&Unknown 5 5 13.2 0.0 13.2 11 0 244 0.0 24.4 6 35.3 35.3 0 /1 8.6
9-0ther - 0 1 26 2.6 1 / 2.2 5 29.4 3 0.0 2.3
Total 30 8 38 78.9 21.1 100 29 17 45 62.2 37.8 15 2 17 88.2 11.8 100. 93 35128 72.7 27.3
154

TARLE B85 EVALVATION OE ALL SIGHTINGS BU DURATION Of SIGHTING
950
AND LESS 6-10 SECONDS 11-30 SECONDS 31-60
Number Per Cent Number Per Cent Number
Evaluation Certan Certain Certain Total Doubtful Total Doubtful Total Doubtful Certain Doubthul Tota
1 OBalloon , 4.0 0.0 0 0 0.0 00 / 1 48 4.8
0 10.0 0.0 10.0
1 Astronomical 12 8 20 48.0 32.0 800 2 3 14.3 28.6 429 6 , 7 4833.4 2 ad 20.0
2.Aircraft 1 e 4.0 0.0 4 00 57.1 5 2 7 23.8 9.5 33.3 2 0 2 209
3-Light Phenom. 0.0 20.0
C 0 0.0 2 0 0 0.0 0.l
4-Birds C 00 0.0 C 0 0.0 2 0 0.0 C 0 0.9 0.0
S Clouds, Dust, etc. C 0 00 0.0 0 0.0 0 0.0 a0 0.0
5Insuffic. mfo. 2 80 2.0 0 0.0 00 1 4.8 4.8 0 od 0.0 0.0
7-Psychological C 00 0 0.0 0 0.0 0 D 0 0.0 a0 00
& Unkno wn / 1 4.0 2 0 0.0 5 5 23.8 0.0 238 4 D 4 40.0 0.0.40.0
90mer C 0 ad 0.0e.d a 0 0.0 a e 0.0 0.0 0 10.0 0.0 10.0
Total 17 71.4 28.6 190. 17 4 21 8/0 19.0 100. 5 21080.020.0100
61SECUNTS -5MINUTES 6-30 MINUTES OVER 30 MINUTES Not STaTeD
Number Per Cent Number Per Cent Number Per Cent Num ber Per Cent
Evaluation Certain Doubtful Total Doubthul Certain Doubthul Total Doubtful Total Doubtful Total Certain Certan Doubthul Dou btful
0-Balloon 5 6 89 1.8 10.7 13 4 17 21.7 6.7 28.4 8 0 8 32.0 0.0 32.0 5 6 4.9 1.0 5.9
1-Astronomical 4 7.1 0.0 7.1 0 6.7 0.0 2 / 3 8.0 4.0 12.0 20 /1 31 19.6 10.830.4
2-Aircraft 7 1 8 125 1.8 4.3 3 4 5.0 6.7 11.7 0 5 5 0.0 20.0 12 3 20 16.7 2.9 19.6
3-Light Phenom. C C 0.0 0. 0.0 1.1 9.0 0 0.0 0.0 0.1 0.1 e 0 o0 o0 00 2 e 0 00 0.0
4 Birds 4-Birds C C 0.0 0.0 0 0 0.1 0.1 0 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. e 0 0.0 a e 0 0.0 0 0.0 0 0.0
6-Insuffic. infto. 5-Insuffic. Info. C 15 15 268 0.0 1.0 26.8 3 3 5.0 5.0 0.0 5.1 4 0 4 16.0 0.0 16.0 0 24 23.5 00 0.0 23.5
7.Psychological 7-Psychological , C 1 1.8 0.0 1.8 3 3 0 3 5.0 0.0 50 50 a a D 0.0 0 0.0
B-Unknown B Unknown C 16 28.6 0.0 286 22 0 00 36.7 50 0 5 20.0 0.d 0.020.0 18 17.6 0.0 17.6
9-0ther 9-0ther 3 6 5.4 5.4 108 10.8 / 4 4 1.7 5.0 6.7 00 0 00 000.00.0 21 00 0.00.0 21 3 2.0 0.9 2.9
Total 51 51 556 5 56 91.1 8.9 100. 49 11 49 11 60 6d 81.7 18.3 100.19 62576.02#.0100.8616102 100.19 62576.02#.0100.8616102 84.315.7100. 84.315.7100.
TABLE A86 EVALVATION Of ALL OF ALL SIGHTINGS BY DURATION OE SIGHTING SIGHTINGS B4 DURATION OE SIGHTING
1451 1951
5 SECONDS AND LESS AND LESS 6-10 SECONDS 11-30 5ECONDS /1-305ECONDS 31-60 SECONDS 31-60 SECONDS
Number Per Cent Number Per Cent Number
Evaluation Evaluation Certain Doubthul Doubtful Total Doub thfu! Doub thul Doubtful Total Certain Doubtful Total Certain Dou btful Dou bful
G-Balloon G-Bailoon ? 0 0.0 0.0 0.D 1.0 0 0.0 0.0 0.0 1 9.1 9.1 0 e 0
1-Astronomical IC 1C 2 12 12 588 588 11.8 11.8 70.6 70.C 9 a / 1 5 5 50.0 12.5 62.5 4 0 O 4 36.4 3/.4 0.0 00 36.4 31.4 / / 0.0 20.0
2-Aircraft , 0 1 00 5.9 1 12.5 0.0 12.5 3 0 3 27.3 00 3 1 4 60.0 20.0 80.0
3-Light Phenom. 2 0 0 00 0.9 0.0 00 0.0 0 0.0 00
4-Birds 0 0 0.0 0 0.0 0.0 1 / 9.1 9.1
5-Clouds, Dust, etc. C 0 0 00 0.0 2 0.0 0 0.1 0 0.0
6-insuffic. into. e 0 0 0.0 0.0 0 0.8 0.0 0.0
7-Psychological 2 0.0 0.0 0 0 0.0 0 0.0
8-Unkuno wm 4 4 23.5 00 0 25.0 0.0 25.0 2 18.2 0.0 0 2.1 0.0
9-0 ther 0 C 0.0 a.d 0 0.0 0.0 0.0
Total 152 17 88.2 11.8100 7 1887.512.5100. 10 1 11 90.9 9.1 100. 3 2 5 60040.0 100
61 SECONDS MINVTES 6-30 MINUTES OVER 30 Nor STATED
Number Per Cent Number Per Cent Number
Evaluation Certan Doubtful Total Certain Doubtful Certain Total Doubtful Total Certain Tota
G Balloon / 3 77 3.8 11.5 2 0 2 8.3 0.0 8.3 0 - 12.5 0.0 12.5 4 3 7 6.6 4.9 11.5
I-Astronomical 0 / 0.0 3.8 3 4 12.5 4.2 16.7 1 Z 12.5 25.0 3 10 13 4.9 16.4 21.3
2.Aircraft 3 1 4 11.5 3.8 15.3 2 4 6 8.3 16.7 25.0 - 0 12.5 0.0 N 2 4 3.3 3.3 C.C
3-Light Phenom. 2 1 / 0.0 3.8 3.9 0 4.2 0.0 0 e 0.0 2 / 1.6 1.6
4-Birds 0 0 0.0 00 00 0.0 0 0 00 0.0
5-Clouds, Dust, etc. e C 0.0 0 90 0.0 e 0 0.0 2 0 0.0
6Insuffic inko. 1 C 1 3.8 00 3.8 e 0.0 4.2 2 2 25.0 0.025.0 0 10 16.4 0.0 16.4
7.Psychological 1 0.0 3.8 3.8 0 04 0.0 0 0.0 0000 1 1.6
& Unkno wn 13 C 13 50.0 00 50.0 7 e 7 292 0.0 29.2 2 0 25,0 0.0250 2.2 22 36.1 0.0 36.1
9.0ther 2 0 7.7 0.0 7.7 3 0 3 125 0.0 12.5 e 000.0 30 3 4.9 0.0
Total 21 5 26 80.8 19.2 100. 19 5 24 79.2 20.8 100 7 1867.512.5 100.46 15 61 75.4 246 100.
155

-
-
TABLE A87 EVALURTION OE ALL SIGHTINGS By DVRATION OF
1952 -
5 SECCNDS ANO LESS 6-10 SECONDS 11-30 SELONDS 31-60 SECONDS
Per Cent Number Per Cent
E val uation Certan Doubtful Total Certain Certain Certan Total Douotful Certain Doubtful
0.Ballcon 1 5 6 04 20 2.4 3 4 7 36 6.3 9 14 2.7 49 7.6 8 11 19 5.7 7.9 136 1
1-Astronomical 20 38 32 384 15.553.9 29 15 44 259 13.4 393 26 9 35 14.1 49 190 10 5 15 7.1 3.6 10.7
2-Aircraft 2u 24 43 98 98 196 19 13 32 17.0 116 286 35 3.3 68 18.9 17.8 36.7 24 20 44 17.1 14.3 31.4
3-Light Phenom. / 2 3 0.4 08 1.2 0 1 0.9 0.0 1 / 0.5 1.0 0 2 1.4 1.4
4-Birds 4 0.4 1.2 1.6 e I 0.0 0.9 1 0 1 0.5 0.0 3 / 4 2.1 0.7 2.8
5-Clouds, Dust, etc. 1 0.4 08 C 0 0.0 e 2 1.1 11 0 0.0
GInsuffic. Ino. /1 C 4.5 0.0 9.5 7 7 C.2 6.2 0 11 5.9 0.0 5.9 1/ 11 7.9 0.0
7-Psychological 2 C 08 08 0.0 0.0 s 7 2.7 1.1 3.8 2 0 2 14 1.4
B Unkno w 26 26 106 10.6 0 19 17.0 0.0 17.0 0 33 17.8 40 40 28.6 0.0 28.6 -
9.0ther 7 11 3.7 0.8 4.5 1 0 1 0.9 0.0 0.9 4 8 12 2.2 4.3 6.5 2 3 0.7 1.4 2.1
Total 170 75 245 69.4 30.6 100. 79 33 112 70.5 29.5 100. 121 64 185 65.4 34.6 100 99 41 140 70.7 29.3
-
ELSECNDS -5MINUTES 6-30 OVER30 MINUTES NOT STATED
Number Per Cent Num ber Per Cent
Evaluation Doubtful Certain Total Doubtful Doubthul Total
0-Balloon 146 36 82 12.7 9.9 22.6 62 45 107 16.8 12.2 29.0 27 12 39 14.4 6.4 20.8 35 22 57 8.4 5.3 13.7
1-Astronomical u 9 1 3 1.1 2.2 3.3 23 15 38 6.2 4.1 10.3 27 14 41 14.4 7.5 21.9 47 16 63 11.3 3.8 15.1
2-Aircraft 15.7 15.4 31.1 73 8.6 11.1 19.7 20 5.9 4.8 10.7 84 115 8.7 20.2 •|
SX 56 1/3 32 41 11 9 48 36
3-Light Phenom. 3 9 1.7 0.8 2.5 13 6 19 3.5 1.6 5.1 , 2 3 0.5 1.1 16 3 1 4 0.7 0.2 09
4-Birds , C 1 - 0.3 CC GC 0.3 0 3 0 3 1.6 4 4 4 1.0 0.0 1.0 1.P
5-Clouds, Dust, etc. 1 7 8 0 0 3 1.9 2.7 2.2 3 2 5 0.8 0.8 0.5 0.5 1.3 4 0 4 0.0 0.0 2.1 4 0.7 0.2 0.9
6-Insuffic. info. 6- Insuffic. info. 18 18 0.0 5.0 29 0 29 0.0 7.8 81 8 8 4.3 71 0 71 17.1 171 1 |
7.Psychological 7 7 1.1 0.8 1.9 7 0 1.9 0.0 4 1 / 5 2.1 0.5 2.C 2 , 3 05 0.2 0.7 0.7
& Unkno wn & Unknown 101 0 101 27.8 0.0 278 278 77 27 0 77 20.8 0.0 208 53 53 28.3 28.3 106 25.5 25.5
9-0ther 9-0ther 12 0 0 12 3.3 0.0 3.3 11 4 15 3.0 1.1 4.1 8 3 1/ 4.3 1.6 5.9 19 / / 20 4.6 0.2 4.8 1
Total 250 113 113 363 68.9 311 100. 257 113 370 69.5 30.5 100. 14641187 14641 187 78.1 21.9 100 338 78 416 81.2 18.8 18.8 100
| 1
|
156

:
TABLE A88 EVALVATION OF UNIT SIGHTINGS DURATION OE SIGHTING
ALL YEARS
5SECNCS AND LESS 6-10 5ECONDS 11 -30 SECONPS 31-60 SECONDS
Number Per Cent Number Per Cent
Evaluation Doubtful Total Certain Doubtful Total Certain Doubtul Total Total Certain Doubtful Total Total Dubtful Total
0-Balloon 3 5 8 0.8 1.42.2 4 22 30 52 5 10 15 2.3 9 19 55 61416
1-Astronomical 121 106 222 340 29.863.8 36 23 59 2.7 17043.7 38 14 52 174 64238 14 8 22 86 49/3.5
2-Aircraft 23 46 6.5 6.513.0 20 11 31 1Y8 9122.9 40 33 73 18.3 15./33.4 31 22 53 19.0 13532.5
3-Light Phenom. 2 Y 0.6 1.2 1 3 0.7 1.32.2 1 2 05 0510 0 2 0.0 1.21.2
4-Birds 2 0.6 111.7 0 1 00 0.21.7 2050510 5 6 3.1 06 3.7
5-Clouds, Dust, etc. 0 1 / 0.0 0.31.3 0 0.0 2 200 0.90.9 0 0 0 00 0.0.0.0
5 insuffic. info. 19 0 5.3 0.0 5.3 8 0 016730.0 7.311 011 67 0.0 6.7
7-Psychologi cal 2 2 0.60.00.60 0 00.00.00.0 5 2 723 0.93.2 2 0 21.2 00 1.2
8-Unknown 31 0 31 870.08.724 024178 0017.8 38 038740.0 17.4 43 04326.4 0.026.4
9-0ther 9 3 12 2.5 0.8 3.3 2 0 2 1.5 00 1.5 5 6 11 2.3 2.85.1 3 2 5 1.8 123.0
Total 212/435659540.5100.94 4113569.630.4100.179 6921868337100.118 45 16372.4276 102.1
SECONDS 1 MINOTES 1-30 MINUTES OVER 30 MINUTES Not STATED
Number Per Cent Number Per Cent Per Cent
Evaluation Certain Doubtful Total Doubtful Total Certain Doubtful Total Certain Certan Doubtul Dou btful Tota
0-Balloon 55 40 95 13.6 9.9 23.5 67 45 112 15.9 10.726.6 35 12 47 17.8 6.123.9 51 25 76 2.7 3.8 115
1-Astronomical 8 13 21 2.0 3.2 5.2 34 15 49 8.1 3.641.7 33 16 49 16.8 8.1289 99 61/60 15.0 9.304.3
2-Aircraft 56 54 110 13.8 13.3 27.1 40 44 89 9.5 10.520.0 10 20 5.1 5.140.2 72 38110 10.9 5746.6
3-Light Phenom. 3-Light Phenom. 7 4 4 117 11 1.7 41 1.0 1.01 2.7 2.7 151 15 6 27 21 3.61.4 5.0 3.6 1.45.0 1 / 2 2 30.5 3 0.5 0510 0510 5 5 0.8 0311 0.8 0311
4-Birds 0 / 0.2 0.0 0 / 00020.2 000202 2 21.0 2 1.0 0010 0.010 2 03 0.3 0.6 03 0.30.6
5-Clouds, Dust, etc. a O 3 0.0 0.7 1 / 2 21 0.2 020.4 0 0.20.002 0.20.0 02
6-Insuffic. into. 0 30 7.4 e0 0.0 74 36 0 36 8.6 0.0 8.6 11 0 115.60.05.6130 0/30 115.6 0.0 5.6130 0/30 19.70.019.7
7-Psychologi cal 5 4 9 1.2 12 1.0 22 22 9 0 9 2.10.0 2.1 9 2.1 0.0 21 5 1 1 6250.53.082 10 (250.53.0 8 210 1.2 0.3 15
8-Unknown 107 0 26.4 0.026.4 86 08620Y 0.020.4 47 0Y723.9 00264 86 0 8620Y 0.020.4 47 0 Y723.9 0.0239121 0121 18.4 0.0 184 0.0239121 02/18.4 0.0 184
9-0ther 9-0ther 15 3.7 0.7 4.4 15 6 21 3.6 1.4 5.0 P 3 11 4.1 1.5 5.6 35 5 40 5.3 0.8 6.1 3.707 4.4 15 6 21 3.6 1.4 5.0 P 3 11 4.1 1.5 5.6 35 5 40 5.3 0.8 6.1
Total Total 284 12140570.129.9100.303118 42172028.0100.153 44 1977.7223100. 524135.65979.520.5100. 284 12140570.129.9100.30311842172028.0100.153 Y4 19777.7223100.524135.65979.520.5100.
TABLE TABLE A89 EVALUATION OF UNIT SIGHTINGS BY OURATION OE SIGHTING EVALUATION OF UNIT SIGHTINGS BY OURATION OE SIGHTING
1947
5 SECONDS OR LESS 5 SECONDS OR LESS 6-10 SECONDS 11-30SECONOS 11-305ECONOS 31-60 5E1ONDS 31-60 5E10NDS
Number Per Cent Number Per Cent Number
Evaluation Evaluation Certain Doubtful Total Doubtul Doub tful Total Doubtful Certain Doubthul Certain Doubitful Doubtful Dou biful Total Dou biful Total
0-Balloon 0 0 0.0 00 00 6 od od 0.0 0.0 I 0 / 21 21 7.1 00 0.0 00
1-Astronomical 6 6 / 7 75.0 750 125 126 87.5 d7 2 500 50.0 00.0 A 3 3 214 0.0 21 4 / / 2 14.3 14328.6
2-Aircraft 0 0.0 0.0 O 0 0.0 0 / 7.1 71 1 / 00 14.3 143
3-Light Phenom. 0 00 0.0 0 0.0 0 D 0 0.0
4-Birds 0 0.0 0 00 0.0 0.0 O
5-Clouds, Dust, etc. O 0 0 0.0 00 00 0.0 0 0 00 o 0.0
6-Insuffic. into. 0 0 00 0.0 a 0 0 00 0.0 2 14.3
7-Psychological 0 00 000.0 0 0 - / 0.0 7.1 71 0.0
8-Unknown 0 0 0.0 0.0 0 cd 0.0 5 357 0.0357 4 4 571 571
9-0ther 0 1 2.5,00/250 0 0 0d00 0.0 D 12.1 0.071000 0.0 0.0
Total 2 1 8875125100 2 2 450.0 50.0 100.12 2 11185.714.3 100. 5 2 77.4 28.6 100.
SECONDS 5MINUTES 6 - 30 MINUTES OVER 30 MINUTES Nor STATER
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Certain Total Doubt ful Doubtful Tot
G-Bailoon 2 0 2 28.6 286 0 0 00 0.0 0.0 2 4 7.5 0.0 75
1-Astronomical 0 0 00 0.0 0.0 0 Z 4 11 3.2 7.5 20.7
2-Aircraft a 0 0.0 0 1 0.0 Z e 2 38 0.0 3.8
3-Light Phenom. 1 0 / 0.0 14.3 0 0.0 , 0 / 1.9 0.0
4-Birds 0 4
00 0.0 0.0 0 0.0 C 0.0
5-Clouds, Dust, etc. 0 0 00 0.0 0 0.0 2 0.0 00
6-insuffic info. / 0 1443 00 143 2 500 0.0 50.0 0 7 7 13.2
0.0132
7-Psychological 0 0.0 0 00 3 1 5.7 1.97.6
8-Unkno wn 2 0 2 286 0.0 0 50.0 0.050.0 1/ 011 20.80.020.8
9-0ther 1 0 /443 0.0/430 0 0.0 13 0 132450.0 28.5
Total 707V0000.0100.40440000.0100. 48 55390.6 9.4100.
157

TRBLE A90 EVALVATION OF UNIT SIGHTINGS By QURATION OF S/GHTING,
1948 -
5 SECCNDS AND LESS 6-10 SECONPS 11-30 SECONDS 31-60 SECONDS
Number Per Cent Per Cent Number Per Cent
Evaluation Certan Total Certain Totai Certasn Doubtful Total Doubtful Total Certain Totai Cmrtain Tota
G.Ballicon e Y0 00 4.0 0 1 / 0.0 7.1 7. 2 0.0 22.2 22 0 0.0 1
1-Astronomical 5 8 13 20.0 320 520 U 2 6 286 14.3 429 0 , 0.0 11.1 11.1 0 0.0
2-Atrcraft O 8.0 0.0 8.1 0 0 1 / 111 11.1 2 2 500 00 50.0
3-Light Phenom. 1 0 4.0 4.0 0 2 0.0 14.3 14.3 0.0 0 0.0
4-Birds 0 4.0 0.0 4.0 0.0 e 0 0 0.0 0.9 -
5-Clouds, , Dust, etc. a 0 0.0 00 2 O 0.0 0 0.0 00
5insuffic. into. 2 0 2 80 8.0 0 / 7.1 0.0 7.1 1 111 11.1 D 25.0 0.0
7-Psychological a 0 0.9 0.0 0.0 0.0 0 0 00 00
B-Unknown 40 16.0 4 D 4 28.6 0.0 3 0 33.3 0 0.0 -
0.0
10mer 1 0.0 4.0 4.0 a 0 0 0.0 1 1.1 11.1 / 0 250 0.025.0
Total 16 9 2564036.0100. 9 514443 357 100. 5 4 9 55.6 44.Y 100 44000 0.0 100.
-
61 SECONDS -5MINUTES 6 -30 MINUTES OVER 30 Nor SIaTED
Number Per Cent Per Cent 1
Evaluation Certain Doubtful Total Doubthul Total Number Per Cent
Doubthul Certain Doubtful Cerlain Doubtful Total Certain Doubithul Total Dou btful
0-Balloon I 1 2 11.1 11.1 22.2 4 5 6.7 26.7 334 0 6 500 0.0 50.0 5 2 7 7.7 3.1 10.8
1-Astronomical / , 2 11.1 1/.i 22.2 0 4 0.0 26.7 0 4 333 00 33.3 10 15 25 15.9 23.1 385
2-Aircraft 0 3 33.3 0.0 33.3 2 6.7 13.4 0 / 8.3 0.0 5 3 8 7.7 10.8
3-Light Phenom. e 0 0.0 00 / / 0.0 6.7 O 0 0 0.0 0.0 1.5
4-Birds 0 0 p.0 0.0 0.0 , 67 67 6.7 0 Q 0.0 2 3 15 3.1 4.6
5-Clouds, Dust, etc. 0 0.0 O O 0 0.0 0 0.0 -
6-Insuffic. Info. 6-Insuffic. Into. 1 0 4 11.1 11.1 0.0 11.1 0.0 6.7 -
2 / a 0 0.0 10 0 10 154 15.4 15.4
7-Psychological 7-Psychological 0 0.0 0.0 0 0.0 / 1 8.3 8.3 0 0.0
8-Unknown 1 0 1 111 0.0 11.1 0 0 0.0 0.0 0.0 4 0 6.2 6.2
9-0ther 0 0 0.1 0.0 0.0 2 / 6.7 0 0.0 0.0 3 4 7 4.6 6.210.8 6.2 10.8 — -
Total 7 2 977.8 7 29 77.8 22.2100. 22.2 100. 8 715 7 15 53.3 46.7 46.7 100.12 012100.00.0 100.38 27 6558.541.5100. 100.12 012/00.00.0100.38276558.541.5100.
TABLE A91 EVALVATION OF OF UNIT SIGHTINGS BY OURATION OF SIGHTING
1949
5 SECONDS AND LESS -10 SECONOS 11-30 /1 -30 SECONDS 3/-6O SECONPS
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total Certan Doubtful Total Certain Dou btful Dou bitful
G-Balloon e 0 0.0 0.0 Q0 0 0.0 2 0 8 00 00
1-Astronomical 1-Astronomical 6 56 62 87 87 8/2 89.9 89.9 0 e 2 2 0.0 0.0 28.6 3 6 30.0 300 70.0 60.0 600 3 7 0 25.0 350 00 25
2-Aircraft 2 2 0.0 2.9 2.9 0 1 0.0 14.3 0 2 9.0 20.0 2 0.0 16.7
3-Light Phenom. 0 0 0.0 0.0 00 0 0.0 0.9 0
4-Birds / / 0.0 1.4 0 0.0 0.0 00 0 Z 2 0.0 16.7
5-Clouds, Dust, etc. 0 0.0 0.0 00 D 0 0 0.0 1
6-insuffic. into. 44 4 5.8 0.0 0 / 14.3 0.0 14 3 1 0 / 10.0 10.9 / 8.3 00 8.3
7-Psychological 0 0.0 0.0 0 0 1.0 0.0 00 0.9
8-Unkno wn 0 00 0.0 8.0 2 2 28.6 0.0 28.6 / 0 1 10.0 4 0 4 333 33.3
9-0ther 0 0.0 0 / 0.0 14.3 0 00 0 09 0.0
Total 10 59 6914.585.5 100. 3 757.142.9100. 7 3 1070.0 30.0 198/201200.00.0 100
61SECONDS 5 NINUTES 6 -3 0 MINUTES OVER 30 MINUTES Nor 57AZED
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Total Certain Doubtful Totai Total
0-Balloon 6 7 222 3.7 25.9 2 2 4 8.3 16.6 8 0 0.0 0.0 3 0 3 0.0 3.9
I-Astronomical 0 4 4 0.0 14.8 3 0 12.5 125 27.3 9.1 364 16 30 21 184 39.5
2-Aircraft 3 2 111 7.4 18.5 3 3 6 12.5 250 0 / 0.0 9.1 9.1 8 1/ 10.5 3.9 14.4
3-Light Phenom. 0 d 0.0 0 6 00 0.0 O a 0 00 0.0
4-Birds 0 0 0.0 0.0 4.0 0.0 0 O J 0.4 00 0.0
5-Clouds, Dust, etc. 0 0 0.0 C 0.0 C 0 0 0.0
5insuffic. info. 6 0 6 22.2 0.0 222 2 8.3 00 9.3 0 / 9.1 0.0 17 017 224 22.4
7-Psychological 0 1.0 0.0 / 4.2 0 0.0 2 02 2.6 0.9 2.6
B-Unknown 4 0 148 0.0 7 7 29.2 0.0 29.2 4 0 36.4 1101/ 195 0.0 14.5
9-0ther / 0 3.7 0.0 3.7 4.2 4.2 1 0 / 00 9.1 202 2.6 0.0 2.6
Total 20 72774.125,9100.19 52479.2208100.9 2 1181.8 182 100.59 1776 77.622.4 100.
158

TOBLE 991 EVALUATION 2E UNIT SIGHTINGS Sy OURATION OF SIGHTING
1950
5SECONOS AND Less 6-10 SECONOS 11-30 S ECONDS 31-60 SECONoS
Number Per Cent Number Per Cent
Evaluation Certain Total Doubtful Certain Doubtful Total Doubthul Tot
0 Bailoon 1 0 , 5.0 0.0 0 aD / 00 6.2 62 1 11 0.011.1
1-Astronomical 10 5 15 50.0 25.0 75.0 2 3 6.7 33.3 506 6 / 7 37.5 6.2 437 0 7 0.0 22.2222
2.Aircraft 1 0 / 5.0 0.0 0 3 50.0 00 500 4 2 6 25.012.5 375 D 2 22.2 0.022.2
3-Light Phenom. 0 0 0.0 0.0 0 O 0.0 00 0 0.d
4-Birds 0 0.0 0 00 0.0 0 O 0.00.0
5-Clouds, Dust, etc. 0 D 0.0 0.0 O ed 0 O 0 0.0
6-insuffic into. 2 0 2 10.00.0 10.0 0 00 0.0 6.2 O 0.000
7-Psychological 0 0 0.00.00.0 0.0 0.000 00 0 0.00.0 O 0 00 0.0 00
8-Unknown / 0 5.00.05.0 0.0 0.000 1 0 1 6.2 006.2 3 3 33.3 0.033.3
9-0ther 00 0 0.00.0 0.0 0 0 0 0.000 0.0 00 0 0.00000 1 0 1 0.1 0.0 11.1
Total 15 52075.025.0100. 4 26 66733.3100. 12 41675.025.0100. 72 977.8 22.2/00.
61 SECONDS-5MINUTES 6-30 MINUTES OVER 30 MiNUTeS Nor STaTeD
Number Per Cent Number Per Cent Number Per Cent Num ber
Evaluation Certain Doubtful Total Doubthul Certain Doubtful Total Tetal Doubtful Total Certan Doubthul Total Certain Dou biful
G-Balloon 4 1 5 11.1 28 13.9 9 2 1/ 231 5.1 282 0 3 27.3 0.0 273 4 / 5 5.6 1.4 70
1-Astronomical 44 0 4 111 0.0 11./ 2 0 2 5.1 0.0 5.1 , 3 18.2 9.1 27.3 17 7 24 23.6 9.7
2-Aircraft 33.3
4 1 5 11./ 2.8 13.9 3 3 6 77 77 15.4 0 2 0.0 18.2 13 3 16 18./ 4.2 22.3
3-Light Phenom. C O 0 0.0 00 0 0.0 0 0.0 00
4-Birds O 0 0 0.0 0.0 00 0.0100
0 0.0 0000000 0 D 0.0
5-Clouds, Dust, etc. 0 0 00 0.0 0.0 00 O 00 0.0 00 0 0.0 0 0.0 0.0
6-Insuffic. info. 3 03 0 8.3 0.0 8.3 0 O 77 7.7 01 0 / 91 00 916 0 /622.2 00 9/16 0 16 22.2 0.0 a0 222
7-Psychological O / 2.9 2.9 0.02.8 0 1 002.6 00 2.6 0 e e 0.00.00.00000.0 000.00.0000 0.0 0.0
B-Unknown 13013 /3 013 36.1 0.036./ 0.036./13 13 0 13 33.3 33.3 0.033.3 2 0 218.2 0.018.2 9 0 9 2.50.012.5 0.033.3 2 0 2/820.018.2 9 0 92.5 0.012.5
9-0ther 235 5.6 8.3 13.9 1 23 5.6 9.3 13.9 1 2 3 2.65.1770 0 0 0.00.00.0 2 0 22.8 00 2.8 2.65.1 770 0 0 0.00.00.0 20 22.8 002.8
Total 31 5 36 86.1 13.9 100 32 739 82.117.9 100. 5 3 11 72.7 27.3 100 61 11 72 84.715.3 100 31 5 36 86.1 13.9 100 32 739 82.117.9 100. 5 3 11 72.7 27.3 100 61 11 72 84.7 15.3 100
TABLE A93 EVALVATION OF UNIT SIGHTINGS BY DURATION OF SIGHTING EVALVATION OF UNIT SIGHTINGS BY DURATION OF SIGHTING,
1951
5 SECONDS,AND LESS 5 SECONDS AND LESS 6-10 6 -10 SECONOS 11-30 SECONDS 31-60SECONpS 31-60 SECONPS
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubthul Certain Doub thul Total Doubtful Doubtful Doubthul Total Certain Doubttul Total Dou biful Dous biful Total
G-Balloon G-Balloon 0 0 0.0 0.0 00 0.0 0 0 00 00 0.0
1-Astronomical 8 2 10 53.3 53.3 13.3 66.6 666 3 O 3 50.0 50.0 0.0 500 57.0 0 37.5 0.0 37C 0 / 1 0.0 20.0 an0 200
2-Aircraft / 0 / 67 0.0 6.7 O 16.7 3 O 3 37.5 0.0 375 / 4 60.0 20.0 80.0
3-Light Phenom. 0 0.0 0.0 0 0 0.0
4-Birds 0 O 0 0.0 00 O 0.0 1 12.5/2.5 0 0 0.0
5-Clouds, Dust, etc. O C 0 00 0.0 0 0.0 0.0 O 0
6-Insuffic. info. 0 O C.0 0.0 O 0 0.0 0.00.00 O D 0.0
7-Psychological O 0 a.d 0.00.0 0 O 0.0 0 0 0.00 0.0
8-Unkno wn 40 44 26.7 0026.720 2 33.3 0.0 33.3 / 0 / 12.5 0.012.5000 0.0
9-0ther 000 00000.0000 0.0 000.0 000 0.00.00.0000 0.0 00 0.0
Total 13 2 1586.713.3100 60 6100.0 0.010. 71 8 87.512.5100. 32 5 60.0 40.0400
-- 6/SECONDS-5MINUTES 6-30MINUTES OVER 3OMINUTES NOT STATED
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Total Certain Doubtful Total Doubtful Certain Doubtful Total Certain
GBailoon 2 / 3 8.7 4.3 13.0 2 0.0 0 1 12.5 0.0 4 2 6 8.2 4.1 /2.3
1-Astronomical O / 0.0 4.3 3 / 4 130 4.3 17.6 2 12.5 12.5 25.0 3 8 // 6.1 16.3 22.4
2-Aircraft 3 1 4 13.0 4.3 17.3 2 6 8.7 17.4 26.1 0 12.5 0.0 12.5 2 4 4.1 8.2
3-Light Phenom. 0 / 0.0 4.3 D 0.0 4.3 0 O / 2.0 2.0
4·Birds 0 0.0 0 0.0 O 00 0 0.0
S-Clouds, Dust, etc. 2 0 00 0.0 0 0 O 0.0 0.0
5 insuffic. into. / / 4.3 0.04.3 1 O / 4.3 0.0 4.3 0 2 25.0 25.0 10 20.4 0.0204
7.Psychological 0 / 0.0 4,34.3 D 0.0 0.000 O 0 00 / 0 2.0 0.0 2.0
&-Unkuno wn 10 0 10 435 0.043.5 6 0 6 26.1 0.0261 02 25.0 0.0 25.0 13 0 13 26.5 0.0 26.5
- 9-0ther 202 8.7008.730 3 13.0 0.013.0 000 0.0 0.0 303 6.1 0.06.1
Total 18 5 2378.321.7100.18 5 2378.321.7100.7 1 8 87.512.5100.37 124975.524.5100
i
159

1
TABLE 994 EVALVATION Of UNIT SIGHTINGS By OVRATION OF SIGHTING -
1952
5 SECONDS AND LESS 6-10 SECONDS 1130 SECONDS 31-60 SECONDS
Number Per Cent Per Cent Number
Evaluation Certain Doubtful Doubtful Total
0-Balloon J 5 6 0.5 23 2.8 3 6 3.1 3.1 6.2 4 7 11 2.5 4.3 6.9 8 10 18 6.3 7.9 14.2 -
1-Astronomical 86 34 120 39.3 15.554.9 26 15 41 26.5 15.3 41.8 23 9 32 14.3 5.6 19.9 10 4 14 7.9 3.2 111
2-Aircraft 19 21 40 8.7 9.6 18.3 16 10 26 16.3 10.2 26.5 30 60 18.6 37.2 22 20 42 17.5 15.9 33.4
3-Light Phenom. 2 3 0.5 09 1.4 1.0 0.0 1 0.6 1.2 0 2 1.6 -
4-Birds 3 4 0.5 1.4 4.9 / 0.0 1.0 10 0 0.6 0.0 / 4 2.4 0.8 3.2
-Clouds, Dust, etc. / 00 0.5 0 0.0 Z 2 1.2 0 O 0.0
6-Insuffic. Into. 11 011 5.0 0.0 6 6 6.1 1/ 0 // 6.8 6.8 9 0 9 71 0.0 7.1
7-Psychological 02 0.9 0009 0 0.0 5 1 6 3.1 0.6 37 2 1.6 0.0 1.6 1
8-Unkunown 2.2 22 10.0 016 16.3 0.0 0 27 16.8 0.0 16.8 32 25.4 25.4
9-0ther 8 2 10 3.7 0.9 4.6 1 01 1.00.0 4 5 9 2.5 3.1 5.6 2 3 08 1.6 2.4
Total 151 6821968.931,1100. 69 29 98 70.429.6 100.106 55161 65.834.2 100. 87 39 12669.0 31.0 100 1
6/SECONDS-5MINUTES 6-30 MINUTeS OUER 3D MINVTES Nor STATEO 1
Number Per Cent Number Per Cent
Evaluation Doubtful Certain Doubthul Total Certain Doubtful Doubthul Dou btful Total
0-Balloon 40 36 76 13.2 11.9 25/ 53 37 90 16.8 11,7 28.5 25 12 16.1 27 23.8 31 20 51 9.0 5.8 14.8
1-Astronomical 3 7 10 1.0 2.3 3.3 22 14 7.0 4.4 11.4 23 13 36 14.8 8.4 232 46 59 13.4 3.8 17.2
2-Aircraft 43 50 93 14.2 16.5 30.7 31 33 64 9.8 10.4 20.2 8 7 15 5.2 4.5 9.7 42 27 69 12.2 7.8 20.0
3-Light Phenom. 6 9 2.0 1.0 3.0 13 19 4.1 1.9 6.0 7 3 0.6 1.3 / 4 0.9 0.3 1.2
4-Birds 1 0 0.0 0.3 0 2 1.3 0.0 1.3 / Y / 0.3
5-Clouds, Dust, etc. 3 0.0 1.0 / / 2 0.3 0.3 0 0 / 0.6 0.0 0.6 0.6 O 1
6-Insuffic. Info. 6-insuffic. Info. 18 5.9 5.9 0.0 0 27 8.5 8.5 7 7 4.5 0.0 70 70 0 20.3 20.3 0.d 203
7-Psychological 4 7 1.3 1.0 2.3 0 0.0 0.0 2.2 4 / 5 2.6 0.6 3.2 2 2 1 3 0. 0.9
8-Unknown 0 77 77 25.4 25.4 58 58 18.4 0.0 39 25.2 0.0 25.2 73 73 21.2 21.2
9-0ther 9 0 0 9 3.00.0 3.0 0.0 3.0 13 3.2 0.9 4.1 7 3 10 4.5 1.9 6.4 12 / 13 3.5 0.3 3.8 1 -
Total 20110230366.333.7100. 222 94 316 70.329.7 100. 20/10230366.333.7100.222 944316 70.329.7100.117 3815575.524.5100. 117 3815575.524.5100 281 63 344 81.7 18.3100
1
160

TABLE A95 EVALUATION OF OBJECT SIGHTINGS BY DURATIONOE SIGHTING
ALL YEARS
5 SECONDS AND LESS 6-10 SECONDS 1130 SECONDS 31-60 SECOND
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certan Doubtful Total Certain Doubtful Doubtful Total Certain Total Certain Doubtul Total Doubtful Tota
G Ballaon 3 5 8 1.0 1.7 2.7 2 Y 6 1.9 3.5 5.3 5 9 14 2.7 4.8 7.5 9 18 60 60 12.0
1-Astronomical 87 80 167 304 28.0 58.4 26 19 45 230 6.8 39.5 24 35 129 59 /89 9 7 16 6.0 4.7 10.7
2-Aircraft 22 22 uy 77 2.2 15.4 18 9 27 15.9 8.0 23.9 36 3/ 67 193147 36.0 30 19 49 20.0 127 32.7
3-Light Phenom. 2 2 4 0.7 1.4 3 0.9 1.8 2.7 .5 1.0 0 2 0.0 1.3
4-Birds 2 y 0.2 1.4 2.1 0 / 0.0 0.9 09 12.5.51.0 Y 27 7 3.4
5-Clouds, Dust, etc. 0 1 0.0 0.3 0.3 0 0.0 0 2 20.0 /.11.1 0 0 0.0
6 Insuffic. Into. 15 0 6.2 0.0 5.2 8 7.1 00 71 16 0 15 81 0.0 8.1 1 0 11 2.3 0.0 7.3
7-Psycho logi cal 2 0 2 0.7 0.7 0.0 00 Y 1.3 0.0
8-Unkno wn 27 0 9.4 00 9.421 0 21 18.6 0.0 18.6 33 0331770.017.742 042 280 0.0 28.0
9-0ther 9 3 12 3.1 1.04.1 2 0 2 1.8 0.0 1.8 5 5102.7 2.7 5.43 2 5 2.0 1.3 3.3
Total 169 11728659.1109100. 78 35 11369.031.0 100. 124 62/8666.7333100. 110 4015073.326.7100.
61 SECONDS-5MINUTES 6-30 MINVTES OVeR 30 MINUTES Not StaTED
Number Per Cent Number Number Per Cent Num ber Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total Certain Doubtful Total Certan Doubtful Total Dou btful Total
0-Balloon 53 35 88 14.4 9.5 23.9 63 38 /01 168 10. 26. 9 29 12 41 169 7.0 23.9 43 20 63 28 3.6 11.4
1-Astronomical 6 1/ 17 1.6 3.0 4.6 3/ 15 46 1.2 4.0 12.2 29 15 44 16.9 8.7 25.6 62 47 109 11.3 86 19.9
2-Aircraft 52 49 101 4.1 133 27.4 38 3775 10.1 9.8 19.9 9 8 17 5.2 4.7 9.9 60 34 94 10.9 62 171
3-Light Phenom. 6 3 9 16 0.8 2.4 14 5 19 3.11 1.33.0 3.7 1.3 5.0 2 3 0.6 0.6 12 1.8 S 6 0.9 0.2 1.1
4-Birds 0 1 0.30.0 0.3 01 0.3 0.3 18 S 760.90.21./
0.0 0 1 1 1 / 0.31 2 a2 O 0.0 1.2 2 2 4 0.4 0.9 08 14 0.4 0.5 08
S-Clouds, Dust, etc. S-Clouds, Dust, etc. 0 3 30.0 0.8 28 1 3 3 0.0 0.8 281 2 0.3 0.6 01 0 0.0 0.0 0.6 0 1 0.2 000.2
6-insuffic. Info. 26 0 26 7.1 0.0 7.1 32 0.32 032 8.5 0.08.5 0.0 8.5 10 0/0 0 10 5.8 0.0 123 012322400234 012322.4 00224
7-Psychological 5 4 9 1.4 1.1 25 9 49 1.4 1.1 25 9 0 9 09 2.4 0.0 2.4 2.40.0 24 5 16 / 6 2.9 0.6 35 8 2 10 1.50.4 1.9
8-Unkno wn 8-Unknown 99 099269 0.026.9 71 07118.90.018.9 0 99269 0.0 26.9 71 071 18.9 0.018.9 37 037 21.5 0.0 215 21.50.0 215 104 01041900.019.0
- 9-0ther 14 115 38 0.34.1 15 520 4.01.3 5.3 115 38 0.34.1 15520 4.01.3 5.3 8 3 11 4.7 1.7 6.4 4.7 1.7 6.4 29 534 5.3 0.9 6.2 29 534 5.3 0.9 6.2
Total Total 262 10636871.228.8/00. 274 102 3767.927.100. 13/ 41 17276.223.8100.4137 111548 79.720.3100. 262 106368 71.228.8/00. 274 1023762.927.1200. 13/ 41 17276.223.8100.4137111548 79.720.3100.
TABLE A96 EVALVATION OE OBJECT SIGHTINGS BY DURATION OE SIGHTING. EVALVATION OE OBJECT SIGHTINGS B4 DURATION OE SIGHTING,
1947
5 SECONDS AND LESS 6-10 11-30 SECONDS 31-60 SECONDS
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtul Certain Doubtful Totai Doubttul Doubthul Total Certan Certain Doubtful Total Dous bitful Dou btful
0-Balloon 0-Balloon 0 0.0 0.0 0 a0 0.0 / / 1 / 8.3 8.5 0 0.0
1-Astronomical 1·Astronomical 3 3 / 4 4 60.0 20.0 20.0 80.0 1 2 7 33.3 333 66.7 66.7 1000 1000 , 0 8.3 42 00 40 8.3 8 2 / 0.6 16.7 CM 16.7 13
2-Aircraft 0 0
0.0 0 0.0 0 / 8.3 8.3 O 0.0 16.7
3-Light Phenom. 0 0 0.0 0.0 0 O O O 0 0.0 0.0
4-Birds O 0 0.0 00 O 0 0.0 0.0 0 O 0 0.0
5-Clouds, Dust, etc. 0.0 0.0 0 0 00 0 0.0 O a.0
6-Insuffic. info. 0 00 00 0.0 0 0.0 0 2 16.7 16.7 0 O 0.0
7-Psychological 0 od O 0.0 0 / / 0.0 83 8.3 O 0
B-Unknown 0.1 00 00 0 0.0 st 0 5 41.7 0.0 41.7 y 0 4 66.7 0.0 66.7
9-0ther 1 20.0 0.0 20.0 0 0 0.00.0 1 01 8.3 0.0 0 0.0 90
Total 4 5 80.0 20.0 100. 123 33.366.7400.102/283.316700.426 667 33.3100
61SECONOS-5 MINUTES 6-30 MINUTES VER 30 MINUTES NoT STATED
Number Per Cent Number Per Cent Per Cent
Evaluation Certain Doubtful Total Certan Total Certain Doubtful Total Certain Doubtful Total Certain
G-Balloon 2 0 286 26.6 0 00 0.0 4 0 9.3 0.0
1-Astronomical 0 6 0.0 a0 0 0.0 3 4 7 7.0 9.3 16.3
2-Aircraft 0 0.0 0 0.0 2 0 2 4.7 0.0 4.7
3-Light Phenom. 1 0 / 14.3 0.0 14.3 0 / 2.3
4-Birds 0 0.0 0.0 23
0 0.0 0 00 0.0 00 0.0
5-Clouds, Dust, etc. 0 0.0 0.0 0 0 O 0.0 0.0
5-insufic into. 0 / 4.3 0.0143 2 0 66.7 0.0 66.7 7 163 0.0 16.3
7.Psychological 0 0 0.0 0 0.0 / 4 7.0 2.3 9.3
&-Unkno wn 2 0 2 28.6 0.0 28.6 / 0 / 33.3 m
d10 23.3 0.0 233
90ther / 14.3 0.014.3 0 0 0.0 8 08 18.6 0.0
Total 70740000.0/00.303000 0.0100. 38 5 43882.411.6 100.
161

-
-
TRBLE A97 EVALUATION OF OBJECI SIGHTINGS RY OURATION OF SIGHTING
1948 -
5 SECONDSANO/ESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS
Number Per Cent Number Per Cent Number Per Cent
Evatuation Certain Doubtful Total Certain Deubtfhul Total Doubtful Total Doubtul Total Certan Certain Doubtful Total Doubiful Ooubtful
0-Ballaen 0 4.3 4.3 1 / 0.0 7.7 77 2 2 00 22.2 22.2 0 00 -
1-Astronomical 5 7 12 217 30.4 52.1 y / 30.8 7.7 58.5 0 1 0.0 11.1 111 0 0.0 00
2-Asicraft 2 8.7 00 0 e 0.0 0.0 1 0 / 11.1 0 2 50.0 0.0 50.0
3-Light Phenon. 0 / 4.3 a0 4.3 0 2 2 0.0 154 154 0.0 00 0 0.0
4-Birds I 0 4.3 00 #3 0 0.0 0.0 0 0.0 -
5-Clouds, Dust, etc. O 0 00 00.00 0 0.0 0 0.d 0.0
6 Insuffic info. 2 0 2 87 0.097 / 27 0.07.7 o / 11.1 c0 111 1 0 / 0.0 25.0
7-Psychological 0 0.0 0.000 0 0.0 000.0 1 0.00.0 0 0 0.0 00
8-Unknown 3 13.0 0.013.0 4 04 3080.0308 3 33.3 0.0373 0 0 0.0 0.00.0 I
90ther 01 0.0 44.3 4.3 0 000.00.00.00 /7 0.0 1.1 11.1101 25.0 0.0 25.0
Total 15 8 2365.2378 100. 9 4 13 692230.8100.54 9 55.6 44.4 100. 4 0 4 100.0 0.0100.
1
61SECONOS- MINVTES 6 -30 MINUTES VER 3O MINUTES Nor STATED
Number Per Cent Number Per Cent Per Cent Number 1
Evalustion Certain Doubtful Total Doubthul Total Certain Doubtful Total Doubtful Doubttul Doubtful Certain Doubthul Total Dou btful Total
0-Balloon / 2 11./ 22.2 / 4 5 6.7 26.7 33.4 0 444 0.0 H44 5 2 7 8.2 3.3 11.5
1-Astrononical 2 11.1 11.! 22.2 y 0 4 26.7 0.0 26.7 3 0 33.3 33.3 8 13 21 /3.1 21.3 36.4
2-Aircraft 0 3 33.3 0.0 33.3 / 2 6.7 13.4 / 0.0 11.1 5 3 8 8.2 49 13.1 '1
3-Light Phenom. 0 0.0 / 6.7 0.0 0 0.0 1/ 00 1.6 1.6
4-Birds 4-UI105 al e 00 0.0 0.0 0.0 0 / / 0.0 6.7 6.7 0 / 2 31.6 33 4.9 2 31.6 33 4.9
S-Clouds, Dust, efc. 00 0.0 O. 0 0 00 0.000 0.00.0 Q O O 0.0 0.0 0 000.00.00.0 1000 0.00.0
5-Insuffic. Into. 5-Insuffic. Into, 10 1 / 0 1 71 0.0 11.1 1 01 0 67 0.0 6.70 0.06.7 0 0 0.0 10 010/6.4 0.016.4 10 0106.4 0.016.4 |
7-Psychological 7-Psychological 6 00 00 0.0 0.0 0 0.0 0.00.01 0.00.0 0 / 11.1 0.011.1 0 0 0000000.0 0000000.0
8-Unknown / 01 /1 0.011.1 00 0 O 0 00 0.0000 0.00.0 0 0.0 0.0 004046.6006.6 0.0 00 4 04 4.6 00 6.6
9-0ther 0 0 0 0.0 0.00.0 0 00 0.0 0.00.0 0 1 10.0 67 67 0 0 4/ 0.0 67 6.7 0 0 0 0.00.00.03 47 4.9 6.611.5 0.0 0.0 0.0 3 4 7 4.9 6.6 11.5
| |
Total 7 2 977.8222100. 8 7 1553346.7 100. 90 9200 0.0100. 36256/59.041.0100. 7 2 977.8222 100.8 7 15 533 46.7 100. 90 92000 0.0100.36 256/59.041.0/00
TOBLE A98 TABLE A98 EVALUATION OF OBJECT SIGHT INGS BY OURATION OF SIGHTING EVALURTION OF OBJECT SIGHT INGS BY OURATION OF SIGHTING
1949 -
5 SELCNDS AND/ESS 5 SELCNDS ANO/ESS 6-10 SECONOS 10 SECONOS /130SECONDS 11305ECONDS 31-60 SECONDS
Number Number Per Cent Number Per Cent
Evaluation Certais Certain Doubtful Total Certain Doubtful Total Doubtful Total Doubtful Doubtful Certain Total Doutitful Doubitful Deau b ful Dou btful
0-Balloon 0-Ballioon 0 0 00 00 0 Q 1.0 0.0 0.0 —
1·Astronom.cal 1-Astronom.cal 4 38 38 42 8.5 85 80.989.4 80989.4 0 2 2 2 0.0 0.0 28.6 286 286 2 3 5 222 222 333 33.3 55.5 0 0 182 182 /8.2
2-Airciaft 2.Ajurah 0 2 3 od 43 4.3 0 / 0.0 144.3 2 22.2 0.0 27.2 0 2 18.2
3-Light Phasom. 0 0 0.0 e 0d 0.0 0 0 0.0
4-Bird 0 / 211 0 0.0 0.0 0 2 18.2 0.0
5-Cloud .st, efc 0 0d 00 0 0 D 0.0 0.0 0.0
6-insuffic. into. 2 02 4/3 004.31 0 14.3 0.0 0 / 11.1 0.0 01 9.1 0.0.9.1
7-Psychological 0 00 0.0 0.0 00 0 0 0 0.0 0.0 0 0.00.0
S-Unknow 0 80 00002 0228.6 0.028.6 0 / 11 0.0 1161 9 04 36.4 0.0 36,4
9-0ther 0 00010.00.0/01 143 0.014.3 0 00 0.0 0.0 0 0 0 0.00.0 0.0
Total 41 47128872100.4 3 7 57.1429100. 6 3 966.7 333100. 11 0 11 1000 0.0 100.
5 MINVTES 30 MINITES VER3O MINUTES Nor STATED
Number Per Cent Number Per Cent Number
Evaluation Certain Doubthul Total Certain Doubt ful Certan Doubtful Certain Doubtful Total Doubt ful Doubtful Total Certain Doubtful Tota
0-Ballson 6 0 6 273 173 2 4 100 10.0 20.0 0 0.0 00 0.0 3 3 0.0 4.8
1-Astrononical 3 0.0 134 13.6 0 15.0 15.0 3 0 429 42.9 15 9 24 238 143 38.1
2-Aircraft 3 2 5 13.6 9.1 22.7 3 6 15.0 30.0 O / / 0.8 14.3 8 1/ 12.7 4.8 175
3-Light Phenom Q 0 0.0 0.0 O 0 O 0.0 0 0.0
4-Birds 0 0.d 0.0 0.0 0 O ao 0 0.0
5-Clouds, Oust, elc. 0 00 0.0 ao O 0 00 0.0 0.0
6 Insuffic into. 3 0 33.6 0.0 13.6 0 / 5.0 0.0 0 / 0.0 14.3 13 015 238 0.0 238
7-Psyctological 0 00 00 0.000 / 0.0 5.0 0 2 02 3.2 0.0
8-Unknowm y 0 4 18.2 0.018.2 4 200 0020.0 0 / 14.3 0.0 143 6 06 9.5 0.8
9-0ther 1013.50.045701 5.0 0.0 5.0 1 0 1 14.3 0.0 14.32 02 3.2 1.0 3.2
Total 17 5 2277.322.7100.15 52075.025.0100.61 786.714.3100.51 12 6381.0 19.0 100
162

OBJEC GHTING - (1) The group of reports consisting of
henomenon. (2) The
sheet, and IBM card
representing a report for each phenomenon
accepted for the statistical study.
In brief review, ALL SIGHTINGS refer to all reports, UNIT SIGHTINGS
refer to actual sightings. and OB IECT SIGHTINGS. refer to the assumed
serial numbers, called the INCIDENT SERIAL N MBERS, was established
to facilitate any future study of a specific object sighting. Each reported
serial number, a four-digit code the major serial number
series.
9

I
TABLE B99 EVALVATONOF OBJECT SIGHTINGS By DURATION OF SIGHTING
1950
5 SECONDS AND LesS 6-10 SECONDS 11-30 SELONDS 31-60 SECONDS
Number Per Cent Number Per Cent
Evaluation Certan Doubtful Total Certain Doubtul Certain Doubtful Total Doubtul Doubtful Total
D-Balloon / 0 6.7 67 0 o.d 0.0 / ad 100 10.0 8 / u1.1 0.0 11.1
1 Astronomical 6 y 10 40.0 267 66.7 3 25.0 50.0 75.0 2 0 Z 200 0.0 20.0 0 2 2 a0 22.2
2-Aircraft 0 / 6.7 67 0 / 25.0 0.0 25.0 3 2 5 30.0 20.0 50.0 O 2 22.2 0.0 22.2
3-Light Phenom. 0 0.0 00 0 0.0 O 0 0.0
4-Birds 0 00 0.0 0 0.9 00 O 0 0.0 O d 0.9 0.0 0.0
S-Clouds, Dust, etc. 0 0 0.0 00 0.0 0.0 0.0 0 00
6-Insuffic. Into. 2 0 2 13.3 0.013.3 0 0 00 0.0 0.0 1 / 10.0 O 0.0
7-Psychological 0 0 0.0 0.0 00 2.0 00 0 0.00.0 O 0.0 000.0
8-Unknowm / 6.7 0.0 6.7 0 0 od 0.0 1 10.0 0.0100 O 3 333 0.0 33.3
9-0ther 0 0.0 0.00.0 0 00 ad 0.00.0 / 0 11 0.011
Total 1/ 4 15 73.3267100. 2 2 500500100.7 3/070.03001007 2977822.2/00.
61SECONDS 5 MINUTES 6-30 MINUTES OVER 30 MINUTES Nor STATED
Number Per Cent Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtul Doubthul Totai Doubtful Total Certain Totai Doubitful Dxau biful
0-Balloon 4 5 12.5 3.1 15.6 8 2 10 R2 5.6 27.8 3 0 3 33.3 0.0 f 4 2.4 0.0 7.4
0 1-Astronomical 2 3 00 9.4 2 0 2 5.6 0.0 5.6 3 22.2 1.1
33.3 E 5 14 16.7 9.3 26.0
2-Aircraft 3 / 4 94 3.1 12.5 3 6 8.3 16.6 0 0 0.0 9 12 16.7 5.6 22.3
3-Light Phenom. 0 O 0.0 0.0 GO 0 od 00 0.0 0 0.0 00
4-Birds 4-Birds 0 0.0 0.01 0.0 0.00.0 0 0 00 00 a.0 0.0 0 0.0 00
5-Clouds, Dust, etc. 0 0 0.0 0.9 0 ed 0.d 0 0.0 O 00 00 0.0
6-Insuffic. Into. 6-Insuffic. Info. 0 O 9.4 0.0 9.4 3 0 3 3 83 83 0.0 8.31 8.3 1 1 11.1 0.0 11/ 19 14 0 14 25.9 00 00
7.Psychological / 0 / 1 3.1 3.1 0.0 3.1/ 1 2.8 0.02.8 0.02.8 0 0.0 0 a a 0 0.0 00
&-Unknown /3 0 13 40.7 004074 0 11 0040711 1/ 30.6 30.6 a.030.62 a.030.6 0 2 222 222 0.0 22.2 8 8 14.8 00
9-0ther 2 / 3 3 60.2 3.1 9.3 1 2 3 60.2 3.1 9.3 1 2.8 5.6 8.4 0 0 5.6 8.4 00 0 0.0 00 0.0 2 02 0 2 37 0.0 3.7
Total 29 3 3200.6 9.4 100.29 7 3680.619.4100. 8 29 3 3200.69.4 100.29 7 3680.619.4100. 8 9 88.91.1100.46 85485214.8100. 89.9 11.1 100. 2.46 8548521148100.
- TABLE A100 TABLE A10O EVALVATION OF OBJECT OE OBJECT SIGHTINGS BY DURATION OF SIGHTING,
1951
5 SECONDS AND LESS 5 SECONDS AND LESS 6-10 SECONDS 6-10 SECONDS 1130 5ECONOS 1130 SECONOS 31-60SECONDS
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Total Doubthul Total Doubtful Total Certain Doubtfui Total Certain Doubtful Certan Doubtful Total Dou bitful Dou btful Total
0-Balloon 0-Ballioon 0 0 00 00 0.9 0.0 0.0 0 00 0 0.0 00
1-Astronomical 1-Astronomical 5 5 2 2 7 41.716.7584 41.7 16.7 594 0 40.0 00 409 409 33.3 333 0.0 33.3 0 / 1 0.0 00 20.0 20.0
2-Aircraft / 0 2.3 0.0 8.3 20.0 00 200 2 0 2 33.3 3 4 60.0 20.6 800
3-Light Phenom. o 0 00 0.0 0 00 00 0.0 O 00
4-Birds 0 0 00 0 0.0 00 1 / 00 16.7 0
5-Clouds, Dust, etc. 0 0.0 00 00 0 0 0.0 00 0.0
6-insuffic. info. 0 0 0.0 00 0 00 0.0 0.0 00
7-Psychological 0 0.0 0 0.0 00 0 0.0 9.0 0 00
8 Unknown 4 0 4 333 0.0 333 2 0 2 400 40.0 1 16.7 00 00
9-0ther 0 Q 00 0.0 O 0 00 O 00 0.0 0 00
Total 10 2 1283.3167 100. 05 1000 00 516833/6.7/00 32 560040.0/10.
61 JECONOS MAUTeS 6 -30 MINUTES VER 30 MINuTES Not STATED
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Certain Total Doubtful
G-Balloon 3 4.5 4.8 14.3 2 2 10.5 0.0 105 0 / 0.0 143 3 5 6.5 4.3 108
1-Astronomical 0 / 00 4.8 48 3 / 4 15.8 5.3 21.1 1 2 14.3 286 3 8 /1 6.5 17.4 23.9
2-Aircraft / 4 14.3 4.8 19.1 3 5 10.5 15.8 26.3 0 14.5 0.0 14.3 2 4.3 2.2 6.5
3-Light Phenom. / 00 48 4.8 O 0 0.0 0 00 1 0 / 0.0 2.2
4-Birds 0 0 0.0 00 0 00 0.0 0 0 0.0 00
5 Clouds, Dust, etc. 0 00 O 0 0.0 0 00 00 0.0 00
6-Insuffic. into. 0 / 4.8 0.0 4.8 1 1 5.3 0.0 2 28.6 00 10 0 '0 21.7 0.0
7-Psychological 1 1 0.0 4.8 0 0.0 0.0 00 00 / 0 / 2.2
8-Unkno wn 8 0 8 381 00 38 Y 0 4 21.1 21.1 / / 14.3 0.0 /3 0 13 28.3 0.0
3-0ther 2 0 9.5 00 95 3 0 3 15.8 15.8 00 0.0 20 2 4.3 0.0 4.3
Total 16 5 2/ 76.2 23. 8 100. 154 19 78.921.1 100. 6 1 745.7 143100.3511 4676123.9100
163

-
-
TARLE A1OI EVALVATION OF OBJECT SIGHTINGS By OVRATIONOE SIGHTING
1952 1
5 SECONDS AND LESS 6-10 SECONDS 1F30 SECONDS 31-60 SECONDS
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Cerlain Doubtul Total Certain
0-Balloon / 5 6 0.5 2.7 3.2 2 3 2.5 3.7 6 .2 4 10 2.9 4.3 7.2 8 9 17 70 79 14.8 -
1-Astronomical 64 28 92 34.8 15.2 50.0 18 12 30 222 14.8 37.0 17 7 24 12.1 5.6 17.1 3 10 6.1 2.6 B.7
2-Aircraft 18 20 38 9.8 10.9 20.7 16 8 24 19.8 9.9 29.7 28 56 20.0 40.0 2/ 17 38 18.3 148 33.1
3-Light Phenom. 2 3 .5 1.1 1.6 0 1 1.2 0.0 1.2 7 .7 1.4 2 0.0 17 1.7
4-Birds 3 4 5 1.6 2.1 0.0 1.2 0 1 7 0.0 .7 2 3 1.7 9 2.6 I
5-Clouds, Dust, etc. 0 1 0.0 5 0.5 0 0.0 1.0 0.0 2 2 1.4 0 00
G-Insuffic. Into. 9 9 7.9 4.9 0 6 2.4 7.4 10 0 10 71 0.0 7.1 9 78 0.0 7.8
7-Psycho logi cal 2 2 0.0 1.1 0 0 0.1 / 5 2.9 0.7 3.6 1.7 0.0
8-Unkuno wn 19 4 0.3 10.3 /3 0 13 16.0 16.0 22 22 15.7 0.0 15.7 3/ 31 27.0 0.0 27.0 1
3-0ther 8 2 10 4.3 1.1 5.4 0 1 0.0 1.2 4 Y 8 2.9 5.8 23 0.9 1.7 2.6
Total 123 6.1 184 66.8 33.2 100 57 24 8170.429.6100 91494065.035.0100.81 341570.429.6100.
6/SECONDS -5MINUTES 6-30 MINUTES VER 30 MINUTES Not STATED
Per Cent Number Number
Evaluation Doubtful Certain Dou btful Total
0-Balloon 38 32 70 13.7 11.6 25.3 50 30 80 177 10.6 28.3 21 12 33 15.0 8.6 236 24 16 y0 8,5 5.7 14.2
1-Astronomical 2 6 8 0.7 2.2 2.9 19 14 33 6.7 4.9 11.6 20 13 33 14.3 9.3 23.6 24 32 8.5 2.8 11.3
2-Aircraft 40 45 85 4.9 162 30.6 29 27 56 10.2 9.5 19.7 7 14 50 5.0 10.0 39 58 12.1 8.5 20.C
3-Light Phenom. 5 7 1.8 2.5 3 5 18 4.6 1.8 6.4 2 0.7 1.4 2.1 0 1.1 0.0 1.1
4-Birds 0 1 I 0.31 0.3 0.0 0.4 0.0 2 2 1.4 0. 0 1.4 01 8 / 04 04 0.4
S-Clouds, Dust, etc. 0 3 3 0.0 1.1 2 0.4 0.8 0 1 0.7 01 1 0.0 0.4
6-Insuffic. Info. 17 17 6.1 2Y 2y 24 24 8.5 8.5 1.0 6 0 0 6 4.3 0.0 67 067 O 23.8 0.p 0.D 23.8
7-Psychological 4 7 7 1.4 2.5 2.5 0 0.0 4 Y / 5 2.9 0.7 3.6 2 / 3 0.4 1.1
8-Unknown 0 71 71 25.6 25.6 0.0 57 51 0 51 18.0 33 33 0.0 23.6 63 63 063 22.4 1.022.4 1.P 22.4
9-0ther 9-0ther 8 0 0 8 8 2.9 0.0 2.9 10 2 12 2 12 3.5 0.7 4.2 7 310 3 5.0 2.1 7.1 12 113 4.30.44.7 -
Total 1869127767.152.9100. 204 79 28372.127.9 100.10238 14072.9271100.231 5028182.217.8100. 1869127767132.9100. 204 79 28372.127.9 100.10238 14072.9271100.231 5028182.2 17.8100.
164

TABLE A102 EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BYDVRATION OF SIGHTING
FOR MONTHS OF YEAR FIVE SECONOS OR LESS
JANVARY FEBRUARY MARCH APRI
Number Number Per Cent
Evaluation Doubtful Total Certain Doubtful Total
O-Balloon 0 O 00 0.0 0 0 0.0 00 1 Q 1 5.6 5.6
1-Astronomical 5 21 26 16.7 70.0 867 4 6 10 364 54.5 90.9 6 8 14 37.5 50.0 81.5 11 0 11 6/.1 0.0 611
2-Aircraft 0 O 0.0 0 0.d 00 0.0 2 2 11.1 11.1
3-Light Phenom. 0 e 0.0 0.0 o 0 00 2
4-Birds e 0 0.0 O 00 o 0.0 0 / 5.6 5.6
5-Clouds, Dust, etc. O 0.0 0 00 0 0 0.0 O
6-Insuffic into. 0 0 0.0 O 0 0.0 1 o / 6.3 / 1 5.6 00
7-Psychological / 1 3.3 3.3 0 0.0 0.0 O 00 2 0 0.0
8-Unknown 2 6.7 00 6.7 0 0 0.0 1 1 6.3 2 0.0 11.1
9.0ther / 3.3 33/ 9.1 0.0 91 O 00 0 0.0
Total 22 30 26.7 13.3 100.5  6 11 45.5 54.5 100 8 16 50.050.0100. 17 / 18 94.4 5.6 100.
MAY JUNE Jury AUGUST
Number Per Cent Number Per Cent
Evaluation Total Doubtful Certain Certain Doubtful Doubthul Dou btful
0-Balloon 0 0 0.0 1 1 3.7 0.0 / 2 0.9 18 2.7 0 3 0.0 3.5 3.5
1-Astronomical 6 3 9 25.0 12.5 37.5 10 8 18 37.0 296 66.6 38 24 6 2 34 8 22.0 568 15 40 55 17.4 46.5 639
2-Aircraft 5 1 6 208 4.1 24.9 4 11.1 3.7 14.8 1/ 12 23 10.1 11.0 21.1 3 8 11 3.5 9.3 128
3-Light Phenom. Q 0 0 0.0 0 0.0 / 0.9 / 1 12 1.2
4-Birds 0 0 0.0 / / 2 3 09 09 1.8 2.7 0 0.0
5-Clouds, Dust, etc. 4.1 00 4.1 0 Q 0 0.0 0.0 1 / / 09 0.9 0
6-Insuffic. info. 3 12.5 0.0 12.5 3 11.1 11.1 2 0 2 1.8 0.0 18 6 6 0 6 70 0.0 10
7-Psychological o0 0 0.0 0 0.0 0.0 / 1 1.2 1.2
8-Unknown 2 2 8.3 0.0 8.3 0 ao 12 0 12 11.0 0.0 110 6 6 1.0 1.0 10
9-0ther 3 3 12.5 0.0 12.5 12.5 0.0 12.5 1 0 1 3.7 0.0 2 18 1.8 0.0 1 2.3 1.2 35
Total 20 4 20 2483.3 167 100.18 9 2483.3167100.18 9 27 66.7 33.3 100. 68 41 10962.437.6 100. 33 53 86 41 10962.431.6100 33 53 86 384 61.6100. 384601.6100.
SEPTEMBER OCTOBER NOVEMBER DECEMBER
Number Number Per Cent
- Evaluation Certain Doubtful Total Doubtful Dou btful Total
0-Balloon 0-Balloon 0 0.0 2 2 2 0.0 5.6 00 0.0 0 0
1-Astronomical 12 1 13 571 511 4.8 61.9 17 6 6 23 47.2 47.2 16.7 639 63.9 7 14 14 21 24.1 48.3 724 12 24 40.0 40.0 80.0 80.0
2-Aircraft / 48 9.5 14.3 4 28 83 11.1 2 3 6.9 3.4 10.3 0 0 0.0 0.0
3-Light Phenom. 0 / 1 2.8 2.8 1 34 3.4 o 0 00 0.0
4-Birds / 2 2.8 5.6 0.0 0 0 00 0.0
5-Clouds, Dust, etc. 0 0.0 00 0 0.0 0
6-Insuffic. into. 2 9.5 9.5 0 1 2.8 2.8 0 0.0 0 00 0.0
7-Psychological 0 0.0 0 00 0 00 0.0
8-Unknown 2 2 9.5 00 4.5 3 83 8.3 0 10.3 6 6 200 0.0 20.0
9-0ther / 4.8 48 0.0001 1 3.4 00 3.4 0 0.0
Total 17 4 2181.0 19.0100 23 133663.936.1100 14 15 2948.351.7100. 18 1230 60.0 40.0 100.
I
165

I
TABLE A103 EVALVATION OE ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING
FOR MONTHS OF YEAR S1X TO TEN SECONOS -
JANUAKY FEBRUARY MARCH APRI
Number Number Per Cent Per Cent Number Per Cent
Evaluation Certain Deubtful Total Doubtful Certain Doubtful Doubtful Total Doubthul Total Doubthul Total Total Doubtful Tota
O-Bailoon 0 0.0 0.0 00 e0 00 0 0.0 0.0 0 I
1-Astronomical / 5 6 11.1 556 / 0 1 1000 2.0 100.0 1 16.7 0.0 0 2 18.2 0.0 18.2
2-Aircraft 2 1 0.0 11.1 0 0 e0 0000 1 / 1.7 0.0 16.7 5 364 91 465
3-Light Phemom. 0 0 0.0 00 e0 0 00 0.0
4-Birds 0 0 0.0 0 O 0.0 00 00 / O 1 Mo:7 16.7 0 0.0 -
5-Clouds, Dust, etc. 0.0 00 0 0 O 00 2.0 0 0.0 00
6 insuffic. Info. / 1 11.1 0.0 11. 1 0 0 00 00 0 20 0.0 / 9.1
7-Psychological 2 0 0 0.0 0.0 00 0.0 Q0
8-Unkno wm e 11.1 0.0 0 20 00 3 0 3 50.00.0 500 3 03 27.3 0.0 27.3 -
9.0ther 0 0.0 0.0 ao 00 0000 0000000.0.000000 0.0
Total 369333 66.7100. 10100001006060000.0100101190.9 9.1 100
MAY JUNE Jocy AUGyst
Number Per Cent Number Per Cent Number -
Evaluation Certain Doubtful Total Total Certain Doubtful Doubtful Total Doubthul Certain Dou bthul
G-Bailoon 0 / 0.0 83 0 / 5.0 00 5.0 0 2.4 0.0 2.4 4 0.0 12.5
1-Astronomical 3 0 3 25.0 0.0 7 10 150 35.0 50.0 14 20 34.1 146 48.7 3 6 9.4 188
2-Aircraft 2 / 3 16.7 83 25.0 0 3 150 0.0 150 6 5 1/ 14.6 12.2 268 8 •I
12 25.0 12.5 37.5
3-Light Phenom. 0 / 0.0 8.3 83 0 3 3 00 15.0 150 0 0.0 1 1 3.1 0.0
4-Birds 2 0 0.0 0.0 0 0.0 2.0 a.d 0 0.0 00
S-Clouds, Dust, etc. 0.0 0.0 00
0 0 0 0.0 00 0.0e 0 0.0 0.0
6-Insuffic. Info. 6-Insuffic. info. 0 2 16.7 0.0 16.7 2 0 10.0 0.0 10.01 1 0 / 2.4 0.0 2.4 2 0 6.3 0.0 1 1
7-Psychological 0 0.0 0 0.0 000.0 000 0 0.0 0 2 00
8-Unknown 0.0
2 0 16.7 0.0 / 0 / 5.0 00 5070 7 171 0.0 17.1 171 606 187 0.0187
9-0ther Q 0 0 0.0 000 0.0000.01012.4 0.00.00.0101 2.4 0.0 2.4 1 0 131 0.031 10 1 31 0.0 31
| -
Total 10 2 1283.316.7 102 12 83.3 16.7 100.10 10 20 50.050.0 100. 30 11 41 13.226.8 100 21 11 3265.6 34.4 100. 100.10 10 20 50.050.0 100. 30 11 41 13.2 26.8 100 21 11 32 65.6 34.4 100.
| —
SEPTEMBER OCTOsER NOVeMBeR NOVeMBeR DECeMBER DECEMBER
Number Per Cent Number Per Cent Number
Evaluation Certain Doubtful Total Certain Certain Totai Doubtful Total Doubtul Dou bful Dou btful
0-Balloon 0 / 1 0.0 10.010.0 10.0 10.0 0 0.0 0.0 0 00 00
1-Astronomical 2 2 / 3 200 20.0 10.0 10.0 30.0 30.0 10 3 13 66.7 467 20.0 867 867 1 1 4 429 124 14.3 w2672 572 / 2 0 3 33.3 282 66.7 L A 100.0 100
2-Aircraft 0 2 00 20.0 200 0 0.0 00 O 0.0
3-Light Phenom. 0.0
0 0 00 0.0 00 0.0 0 0 0.0
4-Birds 0 1 1 00 10.0 10.0 2.0 0.0 O 0 00 0 0.0 0.0
5-Clouds, Dust, etc. 0 0.0 0.0 0 00 0 0.0 4
6-Insuffic. into. 0 0.0 00 0.0 0 00 20 0 00 0.0 O
7-Psychological 0 0.0 0.0 0 00 00 0 0.0 0.0 20
B-Unknown 3 0 3 30.0 0.0 300 2 0 133 00 13.3 3 03 42.9 00429000 0.0
9-0 ther 2 0 0.02.00000 0 0.0 00 0 0000 00 00 00.0 0.0 0000
Total 5 5 10 50.0 50.0 100. 12 3 15 80.0 200 100. 6 1 7 85.714.3 100. 1 2 3 33366.7100
166

TABLE A104 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SI6HTING
FOR MONTHS OF YEAR ELEVEN TO THIRTY SECONOS
JANUARY FEBRUARY MARCH APRrC
Number Per Cent Number Per Cent
Evaluation Doubtful Certain Total
0-Balloon ao 0 0 0.0 / 1 0.0 6.3 O
I-Astronomical 4 / 5 40.0 10.0 50.0 0 0.0 25.0 / 1 00 6.3 6.3 7 8 33.3 4.8 38.1
2-Aircraft 0 0 0.0 0.0 ao / 25.0 / 1 6.3 3 2 5 143 9.5 23.8
3-Light Phenom. 0 00 0 0.0 0 / 1 4.8 0.0
4-Birds 0 0.0 00 0 0 0.0 02 1 0 1 4.8 4.8
5-Clouds, Dust, etc. Q 0.0 0 0 00
6-Insuffic. info. 1 1 0.0 10.0 0 O 0 0.0
7-Psychological 0 00 0.0 0 0 0.0
8-Unknown 4 0 4 400 40.0 2 50.0 0.0 3 187 00 0 5 23.8 23.8
9.0ther 0 00 0 0.0 / 9 10 6.3 56.262.5 1 1 4.8
Total 9 1 10 90.0 10.0 100. 0 4 100.0 0.0 100. 5 11 1631.3687100. 18 3 2185.7 14.3100.
-
i MAY JUNE Jucs. AUGUST
Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Doubthul Total Dou btful
0-Balloon 1 2 5.3 5.3 10.6 / 5.6 0.0 4 5 9 4.4 5.5 9.9 0 2.5 2.5
0 1-Astronomical 2 0 10.5 0.0 / 3 4 5.6 16.7 223 13 16 14.3 3.3 17.6 6 12 15.0 15.0 30.0
2-Aircraft 4 5 21.1 5.3 26.4 5 2 7 27.8 11.1 389 18 18 36 198 19.8 396 6 4 10 15.0 10.0 25.0
3-Light Phenom. / 53 5.3 0 00 0.0 od 00 0 / 1 0.0
4-Birds / 1 1 0.0 5.3 5.3 0 0.0 0.0 0 0.0 0.000 0 0.0
5-Clouds, Dust, etc. 0 0 0 0.0 0.000 0 00 0.00.0 0.0
6-Insuffic. Into. 6-Insuffic. Info. 0 0 4 21.1 21.1 0.0 0.0 3 16.7 0016.730 0016.7 3 3 3.3 0.0 3.3 2 0.0 3.3 2 7.5 7.5
7-Psychological 7-Psychological 0 0 0.0 0.00.0 4 4 3 3 7 4.4 3.377 0 3.3 77 0.0
8 Unknown 3 15.8 00 0.0 15.8 0 3 16.70.0 16.719 16.7 0.016.719 19 20.9 0.020.914 0 14 35.0 D.O 35.0
9-0ther / 0 1 5.3 5.30 0 0.00.0 0.0101 0.00.0 0.01 01 11 0.0 1.100 0.0 0.0
Total 15 4 19189 21.1 100 13 5 19189 21.1 100135 1872.2 21.8100.62 2991 68.231.8100.28 12 1872.221.8100.62299168.231.810028 12 40 725 27.5 27 5 100,
SEPTEMBER SEPTEMBER OeToBeR NOVEMBER DElEMBER DELEMBER
Number Per Cent Number
Evaluation Doubtful Doubtful Total Certain Doubtul Dou btful
0-Balloon 2 2 2 0.0 13.3 13.3 L 0 1 7.1 71 0 0 0 0.0 00 15.4
1-Astronomical 1-Astronomical 1 1 / 2 6.7 6.7 13.4 6 / 7 42.9 42.9 2.1 2.1 500 2 50.0 0.0 50.0 0 0 3 23.1
2-Aircraft 3 7 267 20.0 46.7 / 2 7.1 14.3 21.4 2 0 2 500 0.0 50.0 / 4 5 7.7 30.8 385
3-Light Phenom. 00 0.0 0 0 0.0 0.0 0
4-Birds 0 0.00 0.0 0 0.0
5-Clouds, Dust, etc. / 1 0.0 4.7 6.10 / 1 7.1 7.1 0 0.0 0 00
6-Insuffic. Info. 2 2 13.3 1331 / 2.1 1.1 0 0.0 0.0 0
7-Psychological / / 6.1 6.7 00 0 0.0 0.0
&-Unknown 0 0.0 1 7.1 7.7 0 0.0 0.0 2 15.4 00 15.4
9-0ther 00.00 00 0.0 0.0 0.0.0000 0 0.0 0 / 1.7 77
Total 8 7 15 53.346.7 10010 4 14 1.428.6 100. 40 4 100.0 0.0 100- 7 13 53.9 46.1 100.
167

-
1
TABLE A105 EVALUATION OF ALL SIGHIINGS FOR AU YEARS BY DVRATION OF SIGHTING
Foe MONTHS OF YEAR THIRTY ONE TO SIXTY SECONDS I
JANUARY FEBRUARY MAREH APRI4
Per Cent Per Cent Number Number
Evaluation Certain Certan Doubtul Total Doubtful Total Doubtful Total Certain Doubtful Doubthul
G-Balloon 0 0 0.0 0.0 / 8.3 00 8.3 Q 1 0.0 45 4.5 I
1-Astronomical 0 3 0 0.0 0.0 1 4.5 4.5
2-Aircraft 0 1 2 3 20.0 400 60.0 0.0 333 2 4.5 4.5 91
3-Light Phenom. 0.0 1 00 0 0 0.0
4-Birds 0 0 0.0 2 0.0 33.3 0.0 333 1 / 4.5 -
5-Clouds, Dust, etc. 0 00 00 O 0 0.0 0.0
6-Insuffic. Into. 0.0 ee 0 0.0 20 o.d 2 2 91 9.1
7-Psychological 0000 00000 0 0.0 0.2.000 0 00 000 0.00.0
8-Unkno wn 04100.000 100.d1 D 20.0 0.0200 2 0 16.7 0.016.715 0 15 682 0.0 682 -
9.0ther 00000000.0101 20.0 0.0 200011 0.08383000 0.0 0.00.0
Total 1 0 4 1000 0.0100. 3 2 560.0 40.0 100 11 1 1291.7 83100. 20 2 22 9099.1 100.
-
MAy JUNE JuLy AUGUSt
Number Number Per Cent Per Cent -
Evaluation Doubthul Doubtful Total Certain Certain Doubtful Dou btful
0-Balloon 0 00 0.0 0.0 5 2 7 10.0 4.0 14.0 / 4 2.6 105 13.1
1-Astronomical 3 1 4 333 11.1 444 0 00 0.0 0.0 0 2 4.0 6 7.9 79 15.8
2-Aircraft 2 0 2 222 0.0 222 3 5 33.3 555 14 12 26 280 24.0 52.0 3 79 5.3 13.2
3-Light Phenom. 2 0 o.d 00 0.0 0.2 / 2.0 2.0 1 00 2.6
4-Birds 0 0 00 0.0 00 / 2.0 0.0 40
S-Clouds, Dust, etc. 0.0000.0000 0000 O 0 a0 20 000 0 0.000 0.0200 G 0.0 0.0 00
6-Insuffic. Info. 6-Insuffic. Into. 0 0e 0.0.0.00.2101 0.00.2 / 11.1 14.1 00 11.1 3 03 3 3 60 0.0 6.0 5 0 5 6.0 5 5 132 0.0 13.2
7-Psychological 0 0 0000 0d0 0000 0d 0 0 0 a0 00 00 0 00 0.000 22 2 00 20 2 5.3 0.0
8-Unknown 8-Unknown 3 33.3 0.0 333 2 0 222.2 0 2 22.2 00 10010 20.0 10 010 20.0 0.020.014 0 14368 0.0200140 14 368 0.0 36.8
9-0ther 0000.0000.0011 000 0.0000.00/10011.1 20 11.1 11.10000.00.00.000000 11.7 00 0 0.00.00.00 0.0 00 0.0
Total 8 1 9 889 11.1 100 6 3 9 67.7 33.3 100. 35 15 50 70.0 30.0 100. 28 10 3893.7 26.3 100. 8 1 9889 11.1 10 6 3 9 67.7 33.3 100. 35 15 50 70.0 30.0 100. 28 10 3893.7 26.3 100.
SEPTEMBER OCTOBER NOVEMBER DECEMBER
Number Per Cent Number Per Cent
Evaluation Doubthul Total Certain Doubtful Doubtul Doubthul Doubtful Total Certain Dou btful Dou bful
0-Balloon 0 0.0 0.0 7.7 77 / 0 1 10.0 0.0 10.0 / / 20.0 20.0 2 3 5.3 10.5 10.5 158
1-Astronomical 1 154 7.7 23.1 2 200 0.0 20.0 0 2 0.0 40.0 400 3 3 5 10.5 15.8 26.3
2-Aircraft 2-Aircraft 2 23.1 22 77 30.8 0 20.0 00.0 / D / 20.0 0.0 00 5 0 2 7 1 26.3 21 3 10.5 106 36.8 21.6
3-Light Phenom. 0.0 0 0 0.0 00 00
4-Birds 0 1 / 7.1 1.7 0.0 0 0 0.0 00
5-Clouds, Dust, etc. O 0 0 0.0 00 0.0 2
6-Insuffic. info. 1 7.7 77 0.0 1 20.0 0 0 0 0.0 00
7-Psychological 0 00 0 0.0 00 0.0
8-Unkno wn 3 0 23 0.0 23.1 5 5 50.0 0 2 0 2 10.5 00
9-0ther 00.0 20 0.0 0.0 000 0.0 0.0 2 0 2 10.5 00105
Total 9 4 13 69.2308 100 10 0 10 100.0 0.0100.23 540.060.0 100 1271963.236.8V00.
168

-
TABLE A104 EVALUATIONOF ALL SIGHIINGS EOR ALL YEARS BY DURATION OE SIGHTING
- FOR MONTHS QE YEAR SIXTY ONE SECONDS TO EIVE MINVTES
JANUARY FEBRUARY MARCH Aekn
Per Cent Number Per Cent
Evaluation Certain Total Doubtful
0-Balloon 2.7 7.7 15.4 / 0 0.0 4.2 111 u. 2 2 5.9 0.0 59
1-Astronomical 3 3 23.1 23 0 2 8.3 0.0 / 2.9 2.9 5.8
2-Aircraft 2 1 3 15.4 7.7 23.1 0 2 8.3 0.0 83 44.4 11.1 55.5 8 10 23.5 5.9 29.4
3-Light Phenom. Q 0.0 0.0 0.0 0
4-Birds 2 00 0 0.0 / O / 2.9 0.0
5-Clouds, Dust, etc. 0.0 0 O / 5.6 0
6-insuffic. info. 1 / 77 7.7 12 50.0 0.0 50.0 0 2 00 5 5 14.7 14.7
7-Psychological 0 0.0 0.0 0 a0 / 2.9
8-Unknown 3 0 3 231 23.1 0 4 167 0.0 167 2 11.1 o 12 35.3
90ther / / 77 7.7 0 3 12.51 12.5 03 3 0.0 16.7 167 2.9
Total 11 2 13 84.615.4 100 2 2491.7 8.3 100. 12 6 18 66733.3 100. 31 3 3491.2 8.8400.
MAY JUNE JUcy AUGusr
Per Cent Number Per Cent
Evaluation Certain Doubtful Certain Doubthul Total Doubtful Total Doubthul Dou btful
0-Balloon 9 2 11 24.3 5.4 29.7 6 / 7 19.3 3.2 22.5 14 36 8.6 22.1 10 12 22 13.5 16.2
1-Astronomical 0 2 0.0 54 5.4 / 3 3.2 6.5 9.7 1 3 4 0.6 1.8 2.4 1 1.4 2.8
2-Aircraft 4 6 10 10.8 16.2 210 5 4 9 16.1 12.9 29.0 30 16 46 18.4 9.8 29.2 12 16 5.4 21.6
3-Light Phenom. 0 0.0 ao 0 0.0 6 1 7 37 0.6 4.3 3 0.0 41 41
4-Birds 0 20 a0 0.0 0 0.0 ao 0 O
5-Clouds, Dust., etc. 5-Clouds, Dust, etc. 0.0 0 0 0.0 1 / 0.6 0.6 0
6-Insuffic. Into. 0 4 108 108 0.0 10.8 0 0.0 14 8.6 8.6 3 0 3 41 4.1 4.1
7-Psychological 0 0 0.0 0.0 2 3 5 1.2 1.8 3.0 2 1 2.7 1.4 1.4 4.1
8-Unknown &-Unknown 1 0 7 18.9 189 8 0.0 25.8 46 28.2 282 23 0.0 31.1 31.1
9-0ther 0 3 81 81 0.0 8.1 4 12.9 12.9 4 0 40 2.4 2 0 2.7 0.0 0.0
Total 27 10 3773.0 270 100.24 7 .3117422.6 27 10 3 713.0 270 100. 24 7 31174 22.6 100.126 37 16377.322.7 100. 100.126 37 16317.322.7 100. 5321 7471.628.4100 53 217471.628.4100
SEPTEMBER OCTOBER OCTOBER NOVEMBER DECEMBER
Number Number Per Cent
Evaluation Certain Doubtul Doubtful Dou btful Total
0-Balloon 3 6 9 6.5 6.5 13.0 130 19.5 19.5 2 8 6.7 6.7 20.0 26.7 26.7 2 0 0 13.3 0.0 0.0 133 5 5 / / 6 21.7 4.3 4.3 26.0 26.0
1-Astronomical / 22 2.2 4.4 0 2 2 0.0 6.7 1 6.7 13.4 / 3 8.7 4.3 4.3 13.0 13.0
2-Aircraft 2 16 18 4.3 34.8 39.1 3 5 8 10.0 16.7 26.7 0 0.0 / 6 4.3 21.7 260
3-Light Phenom. 0 0.0 ao / 1 6.7 0 0.0
4-Birds 0 0 00 0 0.0 ao 0.0
5-Clouds, Dust, etc. 2 0 0.0 0 O.C 6 40.0 40.0
6-insuffic. info. / / 2.2 0.0 2.2 2 6.7 0.0 0 a.0 2 8.7
7-Psychological 0 0.0 0.0 0
8-Unknown 0 16 34.8 34.8 9 0 9 30.0 0.0 30.0 4 26.7 26.7 6 261 0.0 26.1
9-0ther 7 1 3.3 0.0 0 0 00 0o
Total 23 4650.0 50.0 100.1713 30 56743.3 100.8 7 15 53.3 46.7 100.16 72369.6 30.4 100
169

-
-
TABLE R107 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING
FOR MONTHS OF YEAR SIX TO THIRTY MINUTES -
JaNyRey FEBRUARY MARCH APRN
Number Per Cent Number
Evatustion Doubtful Doubtful Doubthul Certain Doub tful Total
0 Balloon / 2 59 11.8 O 25.0 0.0 25.0 7 3 5 13.3 20.0 33.3 0 0.0 -
↓-Astronomical 6 0 353 35.3 2 16.7 0.0 167 1 67 00 6.7 4 / 5 25.0 6.3 31.3
2-Aircraft 2 / 3 118 59 172 0 00 16.7 16.7 6.7 13.3 20.0 4 25.0 0.0 250
3-Light Phenom. 0 00 0 O 00 0.0 0.0
4-Birds 2 0 0.0 O 00 0.0 00 0 0 -
S-Clouds, Dust, etc. Q 0 0.0 0 00 0.0
6-Insuffic. info. 2 e 0 0 00 / 1 6.3 0.0 6.3
7.Psychological / 5.9 0.2 5.9 0 000 0 0.00 0 0.0 00
&-Unknown U 4 235 0.0235 0 22 16.700 16.75 05 33.3 00333 60 6 375 0.0 31.5 I
9.0ther 1 01 59 00 59 3 0 32500.0 25.0 0 1 0.0 67 67 0 0 0 00 00 0.0
Total 15 2 1788 2 11.8100 10 2 12833 16.7 100.9 6 150.0 400 100. 15 1 16 937 6.3 100.
-
MA4 JUNE Jocy AUGUST
Number Number Per Cent
Evaluation Doubthul Total Doubtful Certain Certain Doubtful Dou btful
0-Balloon 9 2 11 26.5 5.9 324 3 16 30.2 70 312 24 14 38 19.6 11.5 31.1 17 13 30 18.3 14.0 32.3
1-Astronomical 3 1 4 8.8 29 11.7 0 2 4.7 0.0 7 11 5.7 3.3 9.0 8 10 8.6 2.2 108
2-Aircraft 5 2 7 14.7 5.9 20.6 5 2 8 11.6 7.0 18.6 1 24 13.1 6.6 19.7 6 17 23 6.4 18.3 24.7
3-Light Phenom. 3 0 88 8.8 1 / 2.3 3 2 5 2.5 1.6 4.1 0 4 4.3 0.0 4.3
4-Birds 4-Birds 000.00.0.00 0.0 0.000 0 2 0.0 0.0 00 0000.00.20.000 00.0 0 0.00.0 0.200 00
5-Clouds, Dust, etc. / 29 0.0 2.9 00 29 0.0 2.9 0 O 0 0 0.0 0.0 00 00.00.0.0.001 0.00.0 / 00 1.1 1.1
6-Insuffic. Info. 3 88 88 0.0 8.83 0 0.0 8.8 3 0 3 3 70 7.0 0.0 7.0 140 16 16 16 131 131 0.013160 0.0131 6 64 00 6.4
7-Psychological 0 000.00.0.0.040 0 00.00.00.04 4 4 9.3 00 93 1 01 1 / 0.8 000.8 20 00082 2 2.2 0.0 22
8 Unikno wn 8-Unknown 25.9005.9 9 0 9 2 59 00 5.9 9 9 20.9 0.0 209 022 0 22 180 18.0 0.018.012 2 0.018.012 2 12 12.9 12.9
9-0ther / 2 3 2.9 5.9 8.8 0 0 0 0.0 2 3 2.9 59 88 2 0 0 0.0 0.000 0.000415 4 15 3.3 0.8 4.1 4 1 5 3.3 0.8 4.1 4 1 5 4.3 1.1 5.4
Total 27 1 34 79.4 20.6 100. 37 6 43 84.1 13.9 100. 93 29 12276.3 23.7100. 59 34 9363.4 36.6 100. 27 7 3479.420.6 100. 37 6 4384.1 13.9 100. 93 29 12276.3 23.7 100. 59 34 9363.4 36.6 100.
SEPTEMBER Ocrosce NOVEMBER DECEMBER DECEMBER
Per Cent Number Per Cent
Evaluation Evaluation Doubtul Doubtful Certain Doub thul Total Doubtful Certain Dou btful Total
0-Balloon 3 5 100 67 16.7 16.7 2 2 6 6 8 9.1 272 36.3 7 9 9 6.3 21.9 28.2 / 8.0 4.0 12.0
1-Astronomical 0 0.0 6.7 6.7 2 3 4.5 9.1 13.6 3 2 2.4 9.4 18.8 18.8 5 / 6 20.0 4.0 40 24.0
2-Aircraft / 8 9 G 3.3 22 26.7 30.0 20.0 3 2 4.5 9.1 91 13.6 121 0 00 25.0 25.0 250 4.0 4.0 8.0 12.0 12
3-Light Phenom. 1 2 3.3 6.6 2 3 4.5 9.1 13.6 3.1 6.2 0 / 4.0 0.0
4-Birds 2 0.0 00 / / 4.5 0 O 0 0.0
5-Clouds, Dust, etc. 00 0 0.0 D 0 0.0 0.0 1
6-insuffic. Into. 3 0 3 10.0 00 1 0 0.0 4.5 / / 3.1 0.0 3.1 2 2 8.0 0.0 8.0
7-Psychological 0 0 0d 2.0 00 0.000 / / 0.0 4.0
&-Unkno wn 7 0 7 23.3 0.0 23.3 3 13.6 06 187 0.0187 8 0 32.0 0.0
9-0ther 1 2 3.3 6.6 20.0.00.00 0000 0.0001 01 0.0 4.0
Total 16 14 30 53.3 46.7 100.9 13 22 40.9 59.1 100 13 19 3 2 40.6 59.4 100. 21 4 25 84.0 16.0 100.
170

-
TABLE A108 EVALVATION OE ALL SIGHTINGS FOR ALL YEARS 84 OURATION OF SIGHTING
FOR MONTHS OF YERR OvER THIRTY MINUTES
JANUARY FEBRUARY MARCH APRU
Number Per Cent
Evaluation Certan Doubtul Total Certain Doubthul Total Doubtful Doubthul
0-Baltoon / 0 1 10.0 / 1 50.0 50.0 7 7 38.9 3 3 187 0.0 18.7
1-Astronomical 1 2 10.0 20.0 / 0 500 0.0 50.0 / 1 0.0 5.6 12.5
2-Aircraft 0 ao 0 0.0 0 2 12.5
3-Light Phenom. 0 0 0.0 BO ao 0 00 0.0
4-Birds 0 0 0.0 0.0 0
5-Clouds, Dust, etc. 0 0 0.0 0.0 0 ao O
6 Insuffic. nfo. 2 0.0 0 00 0 O 0.0 4 25.0
7.Psychological 0 0 ao 0.0
&-Undnown 2 2 20.0 0.0 20.0 0 0 0.0 a.o 10 0 10 55.6 55.6 5 5 31.8
9.0ther 5 5 50.0 0 ao 0 0.0 0.0 O
Total 9 10 90.0 10.0 2 O 100.0 0.0 0 18 100. 14 16 87.5 12.5 100
MAY JUNE Jucy AUGUST
Number Per Cent Num ber
Evaluation Certain Doubttul Doubtful Certain Doubtful Total
0-Balloon 0 0 0.0 0.0 1 2 9 29.2 8.3 37.5 14 7 21 14.3 7.1 21.4 6 3 9 11.1 5.6 16.7
1-Astronomical 0 / 1 0.0 11.1 5 20.8 12 5 17 12.2 5.1 17.3 8 7 15 14.8 12.9 27.7
2-Aircraft 0 0 0.0 2 2 8.3 0.0 8 14 6.1 8.2 14.3 3 3 6 5.6 11.2
3-Light Phenom. 0 0.0 0 1 1.0 0.0 10 / 1.9 1.9
4-Birds 0 0.0 0 O 0.0
5-Clouds, Dust, etc. 0 6 66.7 0.0 0 e 0 2.c 0.0 O
6-insuffic. Info. 0 0 0 0.0 O 0.0 8 8 82 2 2 3.7
7-Psychological 0 0 0 0.0 0.0 / / 2 1.0 2.0 2 3.7 3.7
8-Unknown 0 0.0 7 7 29.2 0.0 31 0 31.6 15 15 27.8 278
9-0 ther / 2 11.1 11.1 22.2 0 1 4.2 4.2 0.0 4 0.0 4.1 4.1 04 4 7.4 1.4
Total 7 2 9 77.8 77.8 22.2 100. 22 24 24 91.7 91.7 8.3 100 77 21 98786 21.4 100 36 18 5466.7 33.3 100. 21.410036185466.7 33.3100
SEPTEMBER SEPTEMBER OCTOBER NOVEMBER DeceMBER DEceMBER
Per Cent Per Cent Number
Evaluation Doubthul Doubthul Certain Total Total Doubtful Doubtful Certain Dou btful
0-Balloon 0 2 2 2 0.0 6.3 6.3 7 7 3 10 36.8 15.8 526 1 1 / 0.0 4.2 4.2 0 0 00 0.0
1-Astronomical 1-Astronomical / 4 4.4 3.1 31 12.5 1 0 1 0.0 5.3 3 2 5 12.5 8.3 8.3 20.8 / 11.1 11.1 22.2
2-Aircraft 2 4 6 63 1.2 12.5 26 18.8 198 0 / 1 1 2.0 0.0 5.3 52 5 5 C 4.2 42 20.8 00.8 25.0 0 O 0.0
3-Light Phenom. 1 / 0.0 3.1 31 0 0 ao 0
4-Birds 1 0 , 3.1 31 2 10.5 O 0 0 0.0
5-Clouds, Dust, etc. 0 Q O 0.0 ao / 1 ao 4.2 0 0.0
6-Insuffic. Info. 2 6.3 63 0 0 0.0 2 8.3 0.0 ao
7-Psychological / 3.1 0.0 O / 1 4.2 0 2 22.2
&-Unknown 0 14 43.7 4 0.0 21.1 7 29.2 0.0 4 44.4
9-0ther 1 31 3.1 0 / 0.0 53 5.3 1 0 4.2 0.0 4.3 101 11.1
Total 24 8 3275.025.0 100.14 5 1913.7263 100. 159 2462.537.5100.8 1988.9 11.1 100
-----
171

-
I
TABLE R109 EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING
FOR MONTHS OF YEAR DURATION NOT STATED -
JANUARY FEBRUARY MAREH Aeen
Number Per Cent
Evalusation Ooubtul Doubtful Total Certain Doubtful Total
0-Balloon 1 2.3 Y 0 4 11.8 20 4 0 6.2 0.0 6.2 / 2 3 1.6 3.2 4.8 -
1-Astronomical 9 18 27 20.9 41.9 62.8 8 16 23.5 47.0 12 11 23 18.5 16.9 354 24 6 30 38.7 9.7 484
2-Aircraft 21 0 2 4.7 5 / 14.7 2.9 17.6 8 3 11 /2.3 4.6 16.9 6 o 6 9.7 0.0
3-Light Phenom. Q 0 0.00.0 o 0.0 0 0.0
4-Birds O 0.0 00.0.0 0 o.d 0.00.0 0 0.0 o 1 1.6 1.6 -
5-Clouds, Dust, etc. 0.0 0 0.000 0 0.0 O
6-insuffic Into. 5 11.6 0.0 11.6 1 0 , 2.9 0.0 29 0 21 32.3 12 0.0 19.3
7.Psycho logi cal 0 0 0.0 0.0 0 0.0 0.de.d e 0 00 ee / 1 1.6
8-Unkno wn 6 13.9 0.0 1397 0 7 20.6 0.020.63 3 4.6 0.0 4.69 0 9 0.0 14.5 -
9-0ther 2 4.70.0 4700 0 0.00.00.00 3 0.04.6 4.60 0 0.0
Total 24 19 4355.844.2100.25 9 34 73.5 26.5100. 48 17 65 73.826.2400.54862 87.1 12.9 100.
-
M1AY JUNE Jucy AvGust
Number Per Cent Number -
Evaluation Certain Doubtful Total Doubtful Total Certain Doubthul Dou bi ful
0-Bailoon 4 0 4 80 0.0 8.0 7 0 7 12.5 12.5 29 40 11.4 4.3 15.7 5 4 9 4.8 3.8 8.6
1-Astronomical 1! 2 13 22.0 4.0 26.0 1 10 12.5 5.4 17.9 29 10 3 11.4 3.9 15.3 9 8 17 8.6 7.7 16.3 •|
2-Aircraft 3 4 7 6.0 80 14.0 5 7.1 1.8 8.9 22 19 51 7.4 19.9 1/ 13 24 10.6 12.5 23.1
3-Light Phenom. / / 00 2.0 2.0 0 0 0.0 0 3 0.0 1.2 O 2 1.9
4-Birds 4-Birds 2 / 0.0 0.02.0120 2.0 0 - 0 0.0 0.0 2 / 30.80.41.2 3 0.8 0.4 1.2 0 0.0 100
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0.0 0.0 0 0 3 3 1.2 1.2
6-Insuffic. Into. 6 6 0 6 12.0 12.0 13 13 13 23.2 23.2 0.0 41 41 16.1 16.1 19 19 18.3 18.3 1 |
0 183 0.0
7.Psychological 0 0 00 0.0 2 2 3.6 3.6 0.0 36 1 / 3 0.4 0.8 1.2 1/ 1.0
8-Unknown 17 34.0 17 17 30.3 30.3 0.0 48 0 48 188 18.8 0.018.829 0.0 18.8 29 29 27.9 0.0 27.9
9-0ther 0 / 1 0.0 2.0 2.0 2 2 3.6 36 24 0 9.4 0.0 9.4 2 1 3 0.0 9.4 3 1.9 1.0 2.9 -
—
Total 41 950820180100.52 456 41 9 50 82.0180 100. 52 45692.9 7.1100.212 92.9 7.1 100. 212 43255 83.116.9100. 782610415025.0100. 83.116.9100.782610415025.0100.
SEPTEMBER OcroseR OctobeR NOVEMBER DelGMBER DECEMBER
Number Per Cent
Evaluation Doubthul Doub tful Certain Doubtful Total Doubtful Certain Doubitful Total
0-Bailoon 0 0 0 0.0 0.0 a.d 0.0 3 3 4 7 7 6.5 8.7 8.7 15.2 15.2 9 10 2.1 18.7 20.8 / / / 2 2.2 4.4
1-Astronomical 1-Astonomical 3 13 23.2 7.0 7.0 30.0 30.0 7 10 6.5 15.2 15.2 21.7 9 4 6 15 18.7 12.5 31.2 6 11 // 17 13.0 23.9 23.9 36.9
2-Aircraft / 2 2.3 4.6 3 4 6.5 8.7 15.2 5 2 7 10.4 4.2 14.6 / 5 8.7 2.2 10.9
3-Light Phenom. 0 0 00 / 2.2 2.2 O 0 0.0 0.0
4-Birds 0 0 0.0 0.d00 2 2 4.3 0.0 4.3 0 O O 0.0
5-Clouds, Dust, etc. 0 2 O od 0d 0.0 / 2.1 0 0.0 1
6-Insuffic. info. 9 0 9 20.9 7 7 15.2 4 0 4 83 0.0 8.3 5 5 109 10.9
7-Psychological 1 1 2.3 0.02.3 2.2 0.0 0 / 0 / 2.2 0.0
8-Unkno wn 11 0 /1 25.6 0.8 2 9 20.0 00 9 O 18.7 20 18.712 0 12 26.1 0.0 26.1
9-0ther 6 7 14.0 2.3 16.3 2 0 2 4.3 2.0 4.3 2 0 2 4.2 0.0 4.2 40 8.7 0.0 8.7
Total 38 5 4388.411.6 100. 30 1646 65.234.8 100. 30 18 4842.5 37.5 100. 3313 46 71.828.2 100.
172

server and his report as determined from available information, and (3) the
Categories of identification, established upon the basis of previous experi-
ence, were as follows:
available in the sighting report. An example was the finding of the approxi-
mate object or objects sighted.
Care was taken during this phase of the work to insure against the deduc-
tion of discrete facts not warranted by the original data. Thus, even
though there was a complete lack of any valid evidence consisting of
10

I
i
TABLE A110 EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING
FOK MONTHS OF YEAR FIVE SECONDS OR LESS
JANVARY FEBRUARY MARCH APRn
Number Per Cent
Evaluation Total Certain Doubtful
0-Balloon ed 0.0 0 ao 0.0 0.0 0 00 / 1 8.3 8.3
1-Astronomical 3 12 200 60.0 800 9 30.0 60.0 90.0 4 10 33.3 500 85.3 6 0 6 50.0 0.0 50.0
2-Aircraft 0 o 00 0 0.0 0.0 1 / 00 8.3
3-Light Phenom. 0 0 0.0 0.00 0 O 0.0
4-Birds 0000 0 0.0 0o 0 00 0.0 / 8.3
5-Clouds, Dust, etc. 0 0.0 00000 0 0.0 0 O
6Insuffic. info. 0 0 0000000 0 0.0 0.0 1 / 83 1 8.3
7-Psychological 1 / 67 0.0.67 0 0 0.0 0.0 0 00 0
&-Unknown 1 01 67 0.0 670 0 0 0.0 0.0 / / 8.3 8.5 2 16.7 0.0
9-0ther 0110.06.767 1 0 / 10.0 0.0 0 0.0 0.000 000 00
Total 5101533366.710046 10 40.0 60.0 100. 6 12600500V00111129178.3100
MAY JUNE JuLy AUGUST
Number Number Per Cent
Evaluation Doubtful Certain Total Doubthul Dou btful
0-Balloon 0 0 0.0 1 1 3.7 37 / 2 3 1.1 2.2 3.3 0 3 0.0 39 3.9
1-Astronomical 5 2 7 26.3 10.5 36.8 10 8 18 37.0 29.6 666 36 54 39.1 19.5 58.6 13 35 48 16.9 45.4 623
2-Aircraft 4 1 5 21.1 53 26.4 11.1 3.7 14.8 8 9 17 8.7 9.8 18.5 3 6 3.9 7.8 11.7
3-Light Phenom. 0 0 0.0 00 1 1.1 / 1 0.0 1.3
4-Birds 0 0.0 0.0 00 1 2 3 3 1.1 2.2 3.3 3.3 0 0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0 0.0 0.0 0 O 1 / 1.1 1.1 0 00 0.0
6-Insuffic. Info. 3 0 15.8 0.0 3 3 11.1 11./ 2 2.2 2.2 6e le 0 6 7.8 0.0 1.8
7-Psychological 0 0 0.0 0 / / 1 1.3
8-Unknown 8-Unknown 2 10.5 0.0 0 0 0 0.0 9 9 9.8 98 6 6 78 7.8
9-0ther 0 2 10.5 0.0 0.0 10.5 1 0 / 3.7 37 2 2.2 2.2 / 3 2.6 1.3 3.9
Total Total 16 3 1984.215.8100. 18 9 163 1984.215.8 100. 18 9 27 66.733.3100 66.733.3 100 60 32 32 92 65.2 652 348 348 100. 31 31 467740.259.8100 46 7740.2 59.8 100
SEPTEMBER OCTOBeR NOVEMBER NOVEMBER DECEMBER DECEMBER
Per Cent Number Per Cent
Evaluation Total Doubtul Doubtful Certain Doubthul Certain Dou btful Total
0-Balloon 0 0.0 a ao 0 0 00 0.0 0.0
1-Astronomical 11 1 / 12 55.0 55.0 5.0 60.d 6 0.0 12 5 17 17 42.9 42.9 17.9 60.8 60.8 7 7 14 33.3 66.6 11 9 20 47.8 39.1 86.9
2-Aircraft / 2 3 50 10.0 15.0 3 4 3.6 10.7 14.3 2 1 9.5 4.8 14.3 0 0 0.0 0.0
3-Light Phenom. 0 0.0 0 1 36 3.6 / 4.8 0.0 0 0.0
4-Birds 0 0 ao / 1 2 36 36 72 0 0.0 0.0
5-Clouds, Dust, etc. 0 0.0 0.0 00 0.0 0 O 00
6-Insuffic. info. 2 0 2 10.0 / 1 36 3.6 0.0 ao 0 0.0
7-Psychological 0 0.0 0 00
8-Unknown 2 10.0 0.0 3 10.7 9.5 0.0 0 3 13.0 13.0
9-0ther / 50 5.0 0 0.0 00 ao / 4.8 0.0 4.8 0 00
Total 16 4 20 80.0 20.0 100. 18 10 28 64.3 35.7 100 /3 8 21 61.938.1100. 14 9 23 60.9 39.1100.
173

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-
TABLE A111 EVALUATION OE VNIT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING
FOR MONTHS OF YEAR SIX TO TEN SECONOS -
JanugeY FEBRUARY MARCH APRI
Per Cent Number Per Cent
Evaluation Certain Doubtul Deubtful Doubtful Total Certain Doubtful Total
0 Balloon 00 0.0 0 0 2 -
1-Astronomical / 2 20.0 400 0 / 1000 0.0 1 20.0 0 22.2 0.0
2.Aitcraft 0 / 1 ao 20.0 0 0.0 0.0 / 1 00 2 / 3 22.2 11.1 33.3
3-Light Phenom. 0 0.0 0 0 0.O 0.0
4·Birds 0 0 0.0 0 00 0.0 -
S-Clouds, Dust, etc. O 00 0.0 0 0.0 0
6-Insuffic. Info. / e 20.0 0.0 200 0 0 0.0 00 1 11.1
7-Psychological 0.0 0 0
8&-Unknown / 200 20.0 0 0 0.0 3 3 60.0 600 333 33.3 -
9-0ther 0 0 0.0 ao 0 O 00 0.0
Total 3 2 60.0 400 O / 100.0 0.0 100. 5 0 1000 0.0 100 8 1 9 88.9 11.1
-
MAY JUNE Jury AUGUST
Number Per Cent Per Cent 1
Evaluation Certain Total Doubthul Doubtful Certain Total Doubtful Doubthul Dou bitful
0-Bailoon / 0 0.0 10.0 0.0 5.6 / 1 2.9 2.9 0 3 11.1 111
1-Astronomical 0 2 20.0 0.0 200 3 7 10 16.7 38.9 55.6 14 20 40.0 17.1 57.1 6 111 11.1 22.2
2-Aircraft / 2 10.0 200 3 0 3 16.7 0.0 5 8 14.3 8.6 22.9 8 11 29.6 11.1 40.7
3-Light Phenom. / 1 0.0 10.0 0 / 00 5.6 5.6 0 0 1 3.7
4·Birds 4·Birds 2 0 0 0.0 0.0 0 00
S-Clouds, Dust, etc. 0 ao O 0.0 0 0 0.0 a0
6-Insuffic. info. 6 insuffic. info. 20.0 20.0 0 2 2 11.1 0.0 0.0 0 2.9 0.0 1 1 3.7 -
/
7.Psychological 7-Psychological 0 0 00 0.0 0.0 0.0
8-Unknown 8-Unkno wn 0 2 20.0 0.0 0.0 1 / 5.6 0 4 11.4 4 14.8
9-0ther 0 0.0 0.0 / 1 2.9 00 10 3.7
Total 8 2 10 80.0 20.0 100. 18 55.6 44.4100. 44.4 100. 26 935 26 9 35 74.3 25.7 100. 18 9 2766.7 25.7100. 18 9 2766.7 33.3100.
| -
SEPTEMBER OCToBeR OCTOBeR NOVeMReR NOVEMRER DECEMBEr
Number Per Cent Number Num ber
Evaluation Certain Doubtful Doubthul Total Doubtful Dou btful Dau btful
0-Balloon 1 0.0 10.0 0 0.0 0 0 00
1-Astronomical 1 200 200 10.0 10.0 30.0 30.0 4 4 3 7 44.4 33.3 333 77.7 0 3 75.0 0 2 2 0.0 0.0 100.0 100.0 1000
2-Aircraft 2 0.0 20.0 Q 0 0 0.0 0.0 ao
3-Light Phenom. Q 0 0.0 0 0.0 O ao
4-Birds 0 / 1 0.0 10.0 0
5-Clouds, Dust, etc. 00 0 ao 0.0 0 O 00
6-Insuffic. into. 0.0 0 0.0 0 O
7-Psychotogical 0 0.0 0.0 00 0 00
8-Unkno wn 3 0 340 0.0 300 2 222 0.0 22.2 1 25.0 25.0 0
9-0ther 0 0.0 0 O
Total 5 5 10 50.0 50.0 voo. 6 3 9 66.7 33.3 100. 4 0 1000 100 2 0.0 100.0
174

----
TABLE A112 EVALUATIONOF VNIT SIGHTINGS EOR ALL YERRS BY PURATION OF SIGHTING
FOR MONTHS OF YERR ELEVEN TO THIRTY SECONDS
JANUARY FEBRUARY MARCH APRi
Number Number Per Cent
Evalustion Certain Total Certan Certain Doubtful Total Certan Doubtful Total
O-Bailoon 0 100 0.0 O 00 91 91 00 0.0
1-Astronomical 4 W.7 167 83.4 1 0 / 0.0 50.0 0 0.0 00 4 5 26.7 6.7 33.4
2-Aircraft 0 0000000 / 0.0 50.0 1 9.1 91 2 4 13.3 26.6
3-Light Phenom. 0 000 0000 o.d 0.0 0.d o 0.0 0 16.70.0 67
4-Birds 0 000000.02 o ed aded 0 0 0.0 ae 6.7 0.0 6.7
S-Clouds, Dust, etc. 016.700 1.70 0 00d 00a0e O 0.0 00 0 0.0 00.00
6-Insuffic. into. 0 000000.0.0 00 00.0000.d00 0 0.0 0.00.0 0 0000·0.02.0
7-Psychological 0 00000.0.00000000.000 0000.00.00.0000000.000
&-Unknown 0 0 0 0000.00 00000200.0 2 0218.20.0182 3 032 20020 200
9-0ther 0 000000000 0 0000.0 0.016 7 9134.543.6 10 6700 47
Total 5 1 6 833 16.7 100. 2 0 2 10000.0 100 4 7 11 36463.6100. 12 3 15 80.020.0100
MAy JUNE J0c4 Aveust
Number Per Cent Per Cent Number
Evaluation Doubtful Total Certain Totai Certain Doubtful Total Dou btful
0-Balloon / 2 6.7 6.7 13.4 0 59 00 5.9 3 3 6 4.1 41 8.2 0 / 0.0 2.9 29
1-Astronomical / 0 lo.7 0.0 67 2 3 59 11.8 17.7 10 12 135 2.7 16.2 / 6 17.1 171 34/2
2-Aircraft 2 3 133 6.7 20.0 5 2 7 29.4 11.8 41.2 15 16 31 20.3 21.6 41.9 6 10 17.1 11.4 285
3-Light Phenom. 0 0.0 0.000 200 0.00.0 0.0 / 2.9
4-Birds 4-Birds 0 0 111002767010 1 / 0.0 6.767 00.00.00.00 0 0000.0 00 0 000.000 00 00.00.000 D a.00.0·0.0 0 00
5-Clouds, Dust, etc. 0000.0.0.00000 0 0.0 00000 00.000.000000.00.0000000.0 00.00000 0 O 0.000 0d
6-Insuffic. Info. 4 0 4 26.7 0.0 26.7 3 0 3 17.6 0.0 17.6 3 0 3 4.1 0.0 41 2 0 2 4 04 26.7 0.0 26.73 0 317.60.01163 034.10.041202 5.7 0.0 57
7-Psychological 0 000.00000 00 000 0.0004 26542.7 81 0 0 0 0 000.0000000 000 0.0004 2 6542.7 8100 0 0.0 0.0 00
8-Unknown 3 0 3 20.0 2.0 20.0 3 0 3 17.6 0.0 17.6 15 0 15 20.3 0.0 20.3 9 0 9 25.7 0 3 20.0 2.0 20.0 3 0 317.6 0.0 17.6 15 0 15 20.30.0 20.3 9 0 9 25.7 0.0 25.7
9-0 ther 1 0 167 0.0 67 00 000 0.0 00 1014·0.0 1.4000002 1 0 167·0.0 67 00 000 0.0 00 1 014·0.0 1.4000000.0 0.0 0.0 0.0
Total 12 3 1580.020.0 100. 13 4 1776.523.5100. 5123 74 68.931.1100. 23 123565.734.3100 12 3 15 80.020.0 100. 13 4 1776.5 23.5100. 512374 68.931.1 100.23 12 3565.734.3100
SEPTEMBER OCTOBEe OCTOBEe NOVEMBER DECEMBER DECEMBER
Number Number Per Cent
Evaluation Certain Doubthul Doubthu Doubtful Certain Dou btful Total
0-Bailoon 0-Baliloon 0 0.0 13.3 133 0 0.0 0. 2 16.7 16.7
1-Astronomical / / 1 6.7 13.4 13.4 5 6 41.7 83 8.3 50.0 0 2 2 0.0 50.0 3 0 25.0
2-Aircraft 4 3 7 26.7 20.0 46.7 / 2 16.1 2 500 0.0 500 / 4 83 25.0 33.3
3-Light Phenom. 0 0 0.0 2.0 0.0
4-Birds 0 0.0 O 0.0 00
5-Clouds, Dust, etc. 0 / 6.767 0.0 8.3 8.3 0.0 O 0
6-Insuffic. Into. 0 2 13.3 0.0133 / / 0.0 8.3 a0 0.0 0 00
7-Psychological 0 / 6.7 00 6.70 0.00.0 0 0.0 0.00.0
&-Unkno wn 00 0.00.0 001 8.3 0.0 83 O 0 0.00.0 2 0 16.700 16.7
9:0ther 0 00 0.02.00.00000.0 0.0000000.00.00.0 10 1 8.3 02 8.3
Total 8 7 15 53.3 46.7 100.8 4 12 66.7333 100. 40 4 100.0 0.0100. 7 5 12 58.341.7100.
175

-
-
TABLE A13 EVALVATION OE UNIT SIGHIINGS FOR ALL YEARS BY DURATION OF SIGHTING
FOR MONTHS Of VEAR THIRTY ONE TO SIXTY SECONDS -
JONUARY FEBRUARY MAReH AeRI
Number Per Cent Number Per Cent
Evaluation Certain Total Certain Total Doubtful
O-Balloon 0 0.0 00 Q 0.0 0.0 O 14.3 14.3 0 / 6.3
1-Astronomical Q 0 00 00 0.0 0.0 00 0 / 6.3 6.3
2-Aircraft O 0 00 3 20.0 400 600 / 0.0 14.3 2 6.3 12.6
3-Light Phenom. 0.000000 2 O 0.0 0 0 0.0
4-Birds 0 O 000.0000 1 0 0.0 3 42.9 0.0 42.9 / 6.3 00 6.3
5-Clouds, Dust, etc. 2 10.02.000 0 00 0 0 O 0.0
6-Insuffic. Info. 0 0000.0000000 0.0 0.0 0 2 2 125 12.5
7-Psychological 0 00000.0.0.00 00 00 0.0 00000 0 0.0 -
8-Unkno wn / 0110040.0400010120.00.0 20.0  0 114.30.014.3 9 0 9 56.2 0.056.2
90ther 0 00 0000 0.01012000.0 20001100 14.314.30 000.00.00.0
Total 10/100.00.0100. 32560.040.0100. 6 1 7 85.7143100. 142 16 87512.5 100 |
MAy JUNE J0cy AUGUST -
Per Cent Number
Evaluation Certain Doubtful Doubthul Doubtful Certain Total Dou btful Total
G-Balloon 0 0.0 0.0 0 00 5 2 7 10.6 4.3 14.9 / 4 3.1 12.5 15.6
1-Astronomical 3 0 0.0 42.8 0 / 2.1 0.0 6 9.4 18.8 4
2-Aircraft 2 0 28.6 0.0 5 37.5 25.0 625 12 24 25.5 510 3 9.4 6.3 15.7
3-Light Phenom. 0 12 0.0 O 00 1 / 0.0 2.1 0 / 2.0 3.1 3.1
4-Birds 0 2 0000.0000 0.000 0 0.0001 ee 1 / 2.1 00 0.0 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0 0.0200.0000 0.0000.0 0.0 0000 0.0 0 00 00 0.0
6-insuffic. Info. 6-insuffic. Info. 0 0 00.00.00d0 0.00.00.0000 00 0.000 3 0.00.0 3 0 3 3 6.4 64 0.0 4 0 4 12.5
7-Psychological 000.00.000000 000.00.0000 0 0 000.00.000 0 0.0 0.0 0.0 00 0 0.0 00 2 6.3 16.3 6.3
8-Unknown 2 022860.028.6 2 0 2250 0 2 286 0.0 28.6 2 0 2 250 0.0 25010 0 10 0.0 250100 10 2/.3 0.0 21.3 :9 9 28/ 281 0.028.1 0.0 28.1
9-0ther 0 00 0.00.00.001 10.012.512.500000 00 0.00.0·0.001 10.0 12.512.500 00.0 0.0 000 00 000000.00.00.0 0.00.00.0
Total 7 07 100.00.0 100. 5 3 8 62.537.5100 32 15 47681319 100. 22 10 3268731.3100. 7 07 100.00.0 100. 5 3 8 62.537.5 100 32 15 4768131.9 100. 22 10 32487 31.3 100.
SEPTEMBER OCTOBER OCToBER NOVEMBER DECEMBER
Number Per Cent Per Cent
Evaluation Doubtful Doubtful Certain Doubtful Total Doxbtful Dox btful Total Total
0-Balloon 0-Balloon 0 / 0.0 77 7.7 7.7 / 14.3 0.0 14.3 0 / 200 200 1 2 l.7 lo.7 6.7 13.4
1-Astronomical l-Astronomical / 3 154 154 7.7 77 23/ 231 2 286 0.0 28.6 286 0 100 00 400 400 40.0 40.0 4 4 13.3 26.6 266
2-Aircraft 4 23.1 27 30.8 / 0 1 14.3 0.0 14.3 / 200 0.0 20.0 3 2 5 13.3 33.3
3-Light Phenom. 2.0 ee 0 00 0.0
4-Birds / / 0.0 2717 0 0 00 O 0.0
5-Clouds, Dust, etc. 0 0 00 0.000 0.0 00 0.0
6-Insuffic. Info. 0 1270.0 17 0 0 0.0 / / 20.0 00 0.0
7-Psychological 0 0 0.00.00.d0 00 0.0 0.000 0 0.0
8-Unknown 3 23.10.0 23.1 3 0 3 42.8 0.0 42.8 0 0 0 0.0 2 0 2 13.3
9-0ther 0 000.00.00.00000.0 0.0000 00 0.0 00 0 2 13.3 0.0 13.3
Total 94 1369230.8 100707100.00.0 100.23 5400 60.0100 105 1566733.3100.
176

--
TABLE A114 EVALVATION OE UNIT SIGHTINGS FOR ALL YEARS B4 DVRATION OF SIGHTING
Foe MONTHS OF YEAC SIRTY ONE SECONOSTOEIVE MINUTES
JANUARY FE BRUARY MARCH APRIL
Per Cent Per Cent Number
Evaluation Certain Doubtful Doubtful Total Certain Certain. Total
0-Balloon / 1 2 100 20.0 0 1 91 9.1 9.1 9 / 2 7.7 0.0
1-Astronomical 2 0 2 200 00 20.0 / 1 9.1 0 00 0.0 0.0 0
2.Aircraft / 3 200 10.0 30.0 2 182 0.0 18.2 2 4 182 364 7 9 26.9 7.7 346
3-Light Phenom. 0 0.0 0.0 0 00 O 00 0
4-Birds 0 2.0 0.000 O 0 00 00 0 0.0 / 1 3.8 0.0 38
5-Clouds, Dust, etc. 0.0 0.000 0 0 / 00 9.1 O 0.0
6 Insuffic. info. / 0 / 10.0 0.0100 2 0.0 182 Q 0 00 3 11.5 0.0 11.5
7-Psychological 00,00.0.00 0 0 0.0 00 0.0 00 / 1 3.8
8-Unkuno wm 1 / 1000.01003 3 27.3 273 2 2 18.2 0.0 9 0 9 34.6 34.6
9-0ther 1 011000.010.0202 182 0.0 18.2 0 3 3 00 27.3 0 / 38 0.0 3.8
Total 8 21080.020.000.10 11190.99.1100.56 11 454546100 24 2 26 92.3 27 100
MAY JUNE Ju44 AUGust
Per Cent Number Number Per Cent
Evaluation Doubtful Total Doubthul Certain Doubtful Total Dou btful
0-Balloon 6 2 8 19.3 6.5 25.8 6 / 7 20.7 3.4 24.1 19 14 33 14.4 10.6 25.0 10 12 22 14.9 17.9 32.8
1-Astronomical 0 2 0.0 6.5 3 34 6.9 10.3 4 0.8 2.3 3.1 / 2 1.5 3.0
2-Aircraft 3 6 9 97 19.3 29.0 5 9 17.2 13.8 31.0 20 14 4 15.1 10.6 25.7 10 14 14.9 6.0 20.9
3-Light Phenom. 0 0 ao 0.0 6 / 7 4.5 0.8 5.3 3 0.0 4.5
4-Birds 0 00 0.0 0 0
S-Clouds, Dust, etc. S-Clouds, Dust, etc. 0 0 00 0.0 2 0.0 0 ao a
6-Insuffic. Into. 4 4 0 12.9 12.9 0.0 0 0.0 13 13 9.8 00 3 4.5 4.5
7-Psychological 0 0.0 0 0.0 2 5 5 1.5 2.3 38 2 1 3 3.0 1.5 4.5 4.5
8-Unknown 6 6 19.3 19.3 0 7 7 24.1 0.0 24.1 33 25.0 18 26.9
9-0ther 2 0 2 6.5 0.0 6.5 3 10.3 10.5 10.3 3 0 2.3 02 30 3.0
Total 21 10 31 31 67.732.3100. 67.732.3 Voo. 22 7 29 15.9241 15.924.1 10097 100 97 35 132 13.5 26.5 100. 421 67 100. 4 21 67 168.7 68.7 31.3 100
SEPTEMBER SEPTEMBER OCToBER OCToBeR NOVEMBER DEeCcmBER DECcMBER
Per Cent Number
Evaluation Doubthu Doubthul Certain Doubtful Doubtful Dou btful Total Total
0-Balloon 5 5 8 8.3 13.9 13.9 222 4 6 77 7.7 15.4 23.1 0 2 2 250 0.0 25.0 / 3 3 11.1 5.6 16.7
1-Astronomical J-Astronomical / / 2 28 2.8 0 0 2 0.0 0.0 7.7 1.7 / 1 125 125 12.5 5.6 11.2
2-Aircraft / 12 13 2.8 33.3 36.1 3 8 11.5 19.2 30.7 0 0 0.0 0.0 / 4 5 5.6 22.2 27.8
3-Light Phenom. 0 0.0 0.0 0 / 00 125 O 00
4-Birds 0 0 0.0 0.0 0 00 0.0
5-Clouds, Dust, etc. 0 0 0.0 O 2 0.0 25.0 250 0.0
6-insuffic. Info. / 1 2.8 / 1 3.8 0.0 0 00 2 2 0.0 11.1
7-Psychological 0 0.0 e 0 2.0 0.0 0 00 00
&-Unknown 12 33.3 0.0 33.3 8 30.8 2 2 00 25.0 0 6 333 ao
9-0ther 0 0.0 / 3.8 0 00 0.0
Total 18 36 50.0 v0o. 15 1/ 26 51.7 42.3 100 6 2 8 15.0 25.0 12 6 66.7 33.3 100.
177

-
TABLE A115 EVALUATION OE UNIT SIGHTINGS FOR ALL YEARS BY OURATION OF SIGHTING
FOR MONTHS OF YEAC 51X TO THIRTY MINUTES -
JAnyaRY FEBRUARY MARCH APRIL
Number Number Per Cent
Evaluation Doubtful Total Doubtful Certain Doubtful Total
0.Balloon / 2 21 7.1 14.2 3 3 00 27.3 1 / 2 8.3 16.6 0 O 0 0.0 -
1-Astronomical 0 3 21.4 0.0 1 91 00 9.1 / Q / 8.3 83 2 2 15.4 00 15.4
2-Aircraft 2 / 3 14.3 7.1 214 0 00 18.2 182 / 2 83 16.7 250 4 0 4 50.8 0.0 30.8
3-Light Phenom. Q 0 0 0 0.0 0.0 00
4-Birds ao 0 0 0 00 0.0 O 00 a0 -
5-Clouds, Dust, etc. 0 0.0 0 0.0 Q O 00
6 Insuffic. info. 0.0 0 0 00 0 00 / 1 7.7 0.0 77
7-Psychological 1 7.1 0 0 0.0 00 0.0
&-Unkno wn 4 4 286 2 2 182 18.2 5 5 41.5 6 0 6 46.2 0.0 46.2 -
9-0ther 1 7.1 3 0 0.0 27.3 01 1 .83 8.3 0 0.0
Total 2 14 85.714.3100.9 2 1181.818.2100 8 4 12 66.733.3100 0 13 100.0 0.0 100
1
MAy JUNE Jucy AvGuSt 1
Number Per Cent Number
Evaluation Doubtful Total Doubtful Certain Total Certain Doubthul
0-Balloon 7 2 9 24.1 6.9 31.0 3 10 18.9 81 27.0 24 12 36 20.0 10.0 30.0 17 13 30 19.5 14.9 34.4
1-Astronomical 2 / 3 6.9 3.4 10.3 0 2 5.4 0.0 7 4 11 5.8 3.3 9.1 8 10 92 2.3 11.5
2-Aircraft 2 5 10.3 172 5 3 8 135 8.1 21.6 16 8 2 4 13.3 6.7 200 6 1/ 17 6.9 12.6 19.5
3-Light Phenom. 3 10.3 0.0 1 0 1 2.7 2.7 2 5 2.5 1.7 4.2 4 4 4.6 ao 46
4-Birds 4-Birds 2 2 0.0 O 0 0.0 0 0 0.0 00
5-Clouds, Dust, etc. 1 1 1 34 34 0 0 Q 0 0.0 O 1 / / 0.0 1.1 1.1 11 1
6-Insuffic. Into. 6-Insuffic. Into. 0 10.3 10.3 3 3 8.1 8.1 16 13.3 0.0 13.3 6 6 69 6.9
7-Psychotogical 7-Psychological 0 0 0.0 4 4 10.8 10.8 / 1 0.8 0.8 2 2 2.3 0.0 2.3
8-Unknown 2 2 2 6.9 9 9 24.3 0.0 0.0 22 0 22 18.3 183 12 12 138 13.8
9-0ther 2 3 3.4 6.9 6.9 10.3 00 0 0.0 0.0 / / 5 5 3.3 0.8 4.1 4 1 4.6 1.1 57 -
Total 22 7 29 75.9 24.1 100. 31 6 37 29 15.9 24.1 100. 31 6 37 83.8 838 16.2 100. 100. 9327 120 11.5 11.5 22.5 100 5928 59 28 87 67.8 32.2100
SEPTEMBER CTOBER NOVEMBER DeCeMBeR
Number Number Per Cent
Evaluation Doubtful Doubtul Certain Dou btful Total
0-Bailoon 0-Bailoon 3 2 5 10.0 6.7 16.7 0 6 6 0.0 30.0 30.0 4 6 8.7 8.7 17.4 17.4 26.1 2 / / 3 8.0 4.0 12.0
1-Astronomical 0 2 2 0.0 0.0 6.7 6.7 / 2 3 5.0 10.0 15.0 15.0 3 5 87 87 13.0 21.7 5 / 6 20.0 4.0 24.0
2-Aircraft / 8 9 3.3 26.7 300 1 2 5.0 10.0 15.0 0 3 0.0 13.0 130 2 3 4.0 80 12.0
3-Light Phenom. / 3.3 3.3 6.6 2 3 5.0 10.0 15.0 / 2 4.3 8.6 1 0 / 00 4.0
4-Birds O 0.0 0 / 5.0 0 0.0 0 0.0
5-Clouds, Dust, etc. O 0.0 0 0.0 O 0 0.0 1
0
6-Insuffic. Info. 3 3 10.0 0 50 0.0 5.0 / 0 1 0.0 4.3 2 80 0.0 8.0
7-Psychological 0 00 0 0.0 / 1 0.0 4.0
8-Unknown 7 7 233 0.0 23.3 3 3 15.0 6 6 26.1 0.0 8 0 32.0 0.0
9-0ther / 1 2 3.3 33 6.6 0 0 o.d 0 0.0 / 4.0 0.0 4.0
Total 1614 3053.346.7,00.713 20 35.065.0100. 1211 23 52247.8100.214 2584.0 16.0100
178

-
-
TABLEAUL6 EVALUATION OF VNIT SIGHTINGS EOR ALL YEARS BY DURATION OE SIGHTING
FOR MONTHS OF YEAR OvEe THIRTY MINUTES
JANUARY FEBRUARY MARCH ACRI
Number Number Per Cent
Evaluation Doubthul Total Certain Doubtful Certain Doubtful Total
0-Balloon / 250 2.0 25.0 0 / 50.0 00 5.0 2 2 0.0 40.0 3 3 33.3
1-Astronomical 1 2 25.0 25.0 500 0 50.0 / 20.0 0.0 O 22.2 0.0 222
2-Aircraft 0 0.0 0 0.0 1 0.0 11.1 11./
3-Light Phenom. 0 0.0 2.0 O 00 D 0 0.0 O 0.0
4-Birds 0 0.0 O 00 0 0.0
5-Clouds, Dust, etc. 0 00 O O 0.0 0 2.0 0.0
6-Insuffic. info. 00 0 O 0.0 0 0.0 / 1 11./ 11.1
7-Psychological 0 0.0 0 0.0 00
B- Unikno wn 0.0 0.0 o 00 00 0 2 40.0 400 2 22.2
9.0ther / 25.0 25.0 O 0 0.0 a0 200 0.0000 00
Total 3 14 150250100 2 0 2 10000.0400. 50 500.00.0100. 8 1 988911.1100
MAY JUNE J024 AUGUST
Number Number Per Cent
Evaluation Doubtful Total Certain Certain Doubthul Total Dou btful
G-Balloon 0 0 00 0.0 20 7 2 9 35.0 10.0 45.0 12 4 16 19.0 6.3 25.3 6 3 158 79 23.7
0 1-Astronomical 0 / 0.0 33.3 333 5 O 5 25.0 0.0 25.0 8 12 12.7 6.3 190 7 6 13 184 15.8 34.2
2-Aircraft + 0 0 2 2 0.0 10.0 3 U 7 4.8 6.3 11 2 / 53 2.6 29
3-Light Phenom. 0 0.0 0.0 O / 1.6 2.6 2.6
4-Birds 4-Birds O 0120000.0 0 0.0 O O 010000100 0 0.0 00 2 0010.00.0 0.0 2 00.0
5-Clouds, Dust, etc. / 0 2 / 33.3 333 0.0 000 0.0 0 00
6-Insuffic. Info. 0 0 0.0 000 5 0 5 5 o 5 7.9 0.0 79 1 01 / 2.6 2.6
7-Psychoiogical 0 0 0.0 00000 O 00 / 1 12 / 2 1.6 1.6 3.2 32 02 2 5.3 0.0 53
B-Unknown 8-Unknown 0 0 0.0 03 3 15.0 18 018 18 286 0.0 28.6 707 7 07 184 184
9-0ther / 0 / 33.3 0.0 33.3 1 0 1 0.0 33.3 1 01 5.0 0.0 5.0 2 0 2 0.0 5.0 32 32 3.202 2 3.20 2 2 10.0 5.3 5.3 53 53
Total 2 1 3 66.6 33.3 100.18 2 2040.010.0400.50 13 6379.420.6100. 25 13 3865.8 34.2 100. 2 1 3 66.6 33.3 100.18 2 2040.010.0400.50 13 6319.4 20.6100. 25 13 3865.8 34.2 100.
SEPTEMBER OCTOBER NOVEMBER DEcEMBER DECEMBER
Number Number Per Cent Per Cent
Evaluation Certain Doubthul Doubtful Tctal Doubtful Total Doubtful Total
0-Baltoon 0 2 0.0 8.0 8.0 3 3 / / 4 30.0 30d 10.0 10.0 40.0 0 0.0 O 00
1-Astronomical 1-Astronomical 3 1 4 4 12.0 12.0 4.0 16.0 / , 0 10.d 0.0 10.0 10.0 3 2 5 20.0 13.3 13.3 33.3 / 2 33.3 66.6
2-Aircraft 2 4 8.0 80 16.0 0 0.0 00 3 67 13.3 20.0 0 0.0
3-Light Phenom. / / 00 4.0 0.0 0 0.0 O 0
4-Birds / 2 1 0.0 4.0 / 10.0 O 0 0.0
0 5-Clouds, Dust, etc. 0 00 0 O 0 0.0 0.0
6-Insuffic. info. 2 0.0 8.0 0.0 13.3 /33 0 00
7-Psychological / 1 4.0 00 0 0.0 C.0 00 / 6.70.0 6.70 0 0.0
8-Unknown 9 9 360 0.0 36.0 3 30.0 00 0 3 20.01 0.020000 0
9-0ther / 0 1 4.0 0.0 00 10.0 01 6.7 0.0 6.7 1 0 1 33.3 33.5
Total 196 2510000.0100.8210 80020.0 100 114 1513.326.710021 366.7 33.3 100.
179

I
I
TABLE A117 EVALVATION a UNIT SIGHTINGS FOR ALL YEARS BY DURATION OF SIGHTING
EOR MONTHS OF VEAR DURATION NOT STATEO I
FEBRUARY 7 MARCH AeRu
JANvARY
Per Cent Number Per Cent Number
Evaluation Doubtful Certain Doubthul Total Doubtful
0-Balloon 0 0.0 2 9.1 91 0 6.8 00 2 3 2.4 48 7.2 -
1-Astronomical 7 6 13 280 24.0 520 4 12 18.2 36.4 546 8 14 18.2 13.6 3/.8 9 2 11 21.4 4.8 262
2-Aircraft 2 0 2 80 0.0 8.0 4 13.6 4.5 181 3 9 13.6 6.8 204 o 6 14/.3 0.0 143
3-Light Phenom. e 0.0 0 0 00
4-Birds O 0.0 0 1 D / 2.4 -
5-Clouds, Dust, etc. 0 00 O 0.0 0.0
6 Insuffic. Into. 5 200 0.0 20.0 / 0 / 4.5 0.0 14 0 14 31.8 3/.8 12 28.6 286
7.Psychological 2 0.01 00 0.0 0.0 0 0 2.4
8-Unknown 3 0 3 12.0 0.0 12.03 13.6 00 136 101 2.3 23 8 0 190 0.0 190 -
9.0ther 2 80 0.0 80 0 0 0 0.0 00033 0.0 6.868000 00.0.00.0
Total 19 6 25 160 24.0 100. 13 9 22 59.1 409 100. 32 12 4472.721.3100. 38 4 429059.5 100
1
MAY JuNe J024 AUGUST
Number Per Cent Per Cent 1
Evaluation Certain Doubtful Total Certain Doubthul Dou btful
0-Balloon 0 3 83 00 8.3 6 6 133 0.0 13.3 27 11 38 12.7 5.2 17.9 5 3 8 5.8 3.5 9.3
1-Astronomical 10 2 12 27.8 5.6 33.4 3 5 6.7 4.4 11.1 27 7 34 12.7 3.3 16.0 6 8 14 7.0 9.3 l6.3
2-Aircraft 3 4 7 8.3 11.1 9.4 / 5 8.8 2.2 11.0 27 15 42 12.7 7.1 19.8 10 7 17 11.6 8.1 19.7
3-Light Phenom. 0 / 1 0.0 2.8 0 0.0 3 1.4 1.4 2 O 2.3
4-Birds 4-Birds 0 1100282801 00000.00.0 1 1205 0510 0 0 00.00.00.0 0 1 00 28 2.8 O 0.0 / 2 0.5 05 10 0 0.0
5-Clouds, 5-Clouds, Dust, etc. Dust, etc. 0.0.0 0 0.00.0 0.0000 0.00.00 D 0 o0 0.0 0.01010.5 0.00500 0 0.5 0.0 05 O 0.0
6-Insuffic. Info. 06 6 16.70.016.712 012 14.70.016.712 0 12 26.7 0.0 26.7 38 0 38 17.90.0 17.9 19 26.7 0.0 26.7 38 0 38 17.9 19 019 19 22. 00 00 22./ |
6
7-Psychological 0.0 0 0.0.0.000 20 2 0 0 0.00.0001 2 440.0 4.41 2305 0.9 1.47 441 0.0 4.4 1 2 3 05 0.9 1.4 / 12 00 1.2
8-Unknown 6 06 16.70.016.713 0 13 2890.0 28.9 35 0 3516.50.016.5 22 6 06 16.70.016.713 013 289 0.0 28.9 35 0 35 16.50.0 16.5 0 22 25.6 00 00
9-0ther 0 0 0 0.0 0.0 0.0 2 0 2 4.4 0.0 4.4 16 0 16 7.5 0.07.5 2 13 0 00 0.0 0.00.02 0 2 44 0.0 4.416 0 16 7.5 0.0 7.5 2 1 3 2.3 1.2 3.5 3.5 |
Total 28 8 3617.8 22.2100. 42 3 4593.36.7100. 176 36 21283.0 17.0 100. 67 19 86 28  8 3617.8 22.2 100. 42 3 4593.36.7 100. 176 3621283.0 17.0 100. 67 19 8617.9 22.1100 17.922.1 100
| |
SEPTEMBER OCTobER OcrobER NOVEMBER DECEMBER
Number Per Cent Per Cent
Evaluation Evaluation Total Certain Doubthul Doubtful Doubtful Doubttul Certain Dou btful Total
0-Balloon 0 0 0.0 0.0 2 3 5.7 2.9 8.6 7 8 2.5 12.5 20.0 / / 1 2 34 34 3.4 6.8 —
1-Astronomical 10 10 3 13 13 23.2 70 30.2 30.2 2 6 8 5.7 17.1 17.1 22.8 7 7 4 4 17.5 10.0 27.2 la 207 241 448 448
2-Aircraft 1 / 2 ) 2.3 2.3 4.6 6 86 8.6 17.2 5 7 12.5 5.0 17.5 3 6.9 3.4 10.3
3-Light Phenom. 0 2 0.0 1 / 2.9 0 0.0
4-Birds 0 0.0 00 0 0.0
5-Clouds, Dust, etc. 0 0.0 00 D 00 0 0.0 0
6-Insuffic. info. 0 9 20.9 209 6 171 00 17.1 3 3 7.5 0.0 0 5 17.2
7-Psychological / 0 / 2.3 2.3 12.9 0.0 2.9 0 0.0 1 / 00 3.4
&-Unknown 11 11 00 25.6 822.900 2299 0 4 0.0 22.5 0 - 2 6.9 0.0 6.9
9-0ther 14.0 2.3 16.3 2 0 2 5.7 0.0 5.7 2 0 2 50 0.0 503 03 10.3 0.0 10.3
Total 38 5 4388.4 11.6 100 24 11 35 68.631.4 100.27 13 40 67532.5100.20 9 29 69.0 31.0100.
180

---
TABLE 9118 EVALUATION Of OBJECT SIGHTINGS EOK ALL YEARS BY DURATION Of SIGHTING
EOR MONTHS OF YEAE EIVE SECONDS OR LESS
JANUARY FEBRUARY MARCH APRr
Number Per Cent
Evalustion Doubtful Doubtful Certain Doubtul Total
0-Balloon 0 0 0 00 20 / O 91 0.0
1-Astronomical 9 11 14.3 643 786 3 8 335.3 55.6 88.9 2 5 7 22.2 556 778 5 0 455 0.0
2-Aircraft 0 00 O 0.0 00 0 21 9.1
3-Light Phenom. 2 0 00 2.0 0.0 0e 0 O a0 00
4-Birds 0 0.0 0.0 0 O 00.02000 / 00 9.191
5-Clouds, Dust, etc. 00 0.0 0 O 0.0 0 O Q 00 00 20 0.00.00.0
6-insuffic. info. 0 e.0 000.0 0 O 0.0 00 / 0111.10.011.101910.081
7-Psycho logi cal 1 0171 0.0 7.1 0 0.000·000 000.000000000.00000
8-Unknown 0 1 71 0.0 7.1 0 0 0 00 00 0.0 1 0 11.10.0 11.1 20 21820.0 18.2
3-0ther 0 110.07.1211 011.10.011.10 00000000000000.00.0
Total 4 10 14 28.6 71.4 100. 4 5 9 44455.6 100 4 5 9 44.4 55.6100 10 111 90.9 9.1 100.
MAY JUNE J42y AUbusT
Number Per Cent Number
Evaluation Certain Doubtful Doubtful Total Dou biful Total
0-Balloon 0 0 0.0 0.0 1 / 00 4.0 2 3 1.4 2.8 4.2 3 5.0 5.0
1-Astronomical 5 2 7 29.4 11.8 41.2 10 17 40.0 280 68.0 22 15 37 31.0 21.1 52. 13 20 33 21.7 33.3 55.0
2-Aircraft 4 / 5 23.5 59 29.4 3 0 12.0 0.0 12.0 1 9 16 9.9 12.1 22.6 6 50 10.0 15.0
3-Light Phenom. 0 200.0 0 0.0 00 1 1.4 14 21 / 0.0 17 1.7
4-Birds 000.0.0.0 20 0.000 d d 0 0 0 00 0.0 1 2 31.4 2.8 1.4 2.8 4.20000.0·0000 42 0 00
S-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 00.2.0.00.0000 0.0.0.0.0.0000 00 0.0 0.0 0 1 0.0 1.4 1.400 0 0.00000 0.0 1 10.0 1.4 1.400 0 0000
6-Insuffic. Into. 6-insuffic. Into. / 1 01 / 59 0.059 3 0 3 590.0593 0 3 12.00.0 12.0 0.0 12.0 12.0 2 0 22.80.028 4 2 0 2 2.8 0.0 284 04 0 4 6.7 00 6.7 6.7 00 6.7
7-Psychological 2 00 0.0 000.0000 0.0000.0000 0.0 0.0 0.00.00000000001 0.00.0 0000000001 01 0 17 0.0 1.7 1.7 0.0 1.7
8-Unknown 8-Unknown 2 02 11.8.0.0 1.8 00 00.0 0.000 6 0 485 0.08.56 04 2 0 2 11.8.0.01.80000.0 0.0 00 6 0485 0.08.56 04 10.0 00 10.0 10.0 00 10.0
9-0ther 2 0 2 11.8 0.0 11.8 1 0 1 4.0 0.0 4.0 2 0 2 2.8 0.0 2.82 1 3 2 0 2 11.8 0.0 11.810 1 40 0.0 4.0 2 0 22.8 0.0 28 2 1 3 3.3 1.7 5.0 3.3 1.7 5.0
Total 14 3 17 82.417.6100. 18 7 25 72.028.0 100 42 29 71 59.2408100. 29 31 6 0 483 51.7 100. 14 3 1782.4.17.6100. 18 7 25 72.028.0100 42 29 71 59.2408100 29 3160 483 51.7100.
SEPTEMBER SEPTEMRER OCTOBER OCTOBeR NOVEMBER DECEMBER DECeMBER
Number Number Per Cent Per Cent
Evaluation Certain Doubttul Doubtul Doubtful Certain Doubtful Doubtful Totai Total Doubtful Total Total Dou btful Total
- G-Balloon G-Bailoon 0.0 2 0.0 0 00
0
1-Astronomical 8 5 5 13 333 20.8 54.1 4 0 33.3 0.0 33.3 4 4 8 26.7 26.7 534 9 9 8 1747.442.189.5 17 47.4 4/2.189.5
2-Aircraft 1 4 42 12.5 16.7 1 2 3 8.3 16.7 25.0 2 13.3 6.7 20.0 0 O 0.0 0000
3-Light Phenom. 0 / 0.0 4.2 2.0 1 0.0 6.7 0 0.00.0
4-Birds 1 / 2 4.2 4.2 8.4 0.0 0 00 0.00.0
0 5-Clouds, Dust, etc. 0 0.0 00 0000 0 0.0 3 000.0
6-Insuffic. info. / / 4.2 00 4/2 2 0 2 16.70.0 16.7 0 00 0.0
7-Psychological 0 0000 O 0000.00.00 00 0.0 000.0 0.00 0.00.0
8-Unknown 3 03 /2.5 0.012.5 0 216.70.0 16.7 202 13.3 00 153 2 0 210.5 0.010.5
9-0ther 0 0000 0.000 01 10.08.38.31 016.70.06.7 0 0 00000 00
Total 14 10 24 58.3 41.7100.98 12 75.025.0 100. 10 5 15 667 33.3 100. 118 1957.9 42.1100.
181

1
-
TABLE A119 EVALURTION OE OBJECT SIGHTINGS EOR ALL YEARS By DURATION OF SIGHTING
FOR MONTHS OF YEAR S/X TO TEN SECONOS -
JANUARY FEBRUARY MARCH APRI
Number Per Cent
Evaluation Doubtful Doubtful Total Certain Certan Certain Doubtul Total
0.Balloon 0 0.0 00 00 0 0.0 -
1-Astronomical 0 / a.0 250 1 0 10od 00 1000 D 1 25.0 0.0 25.0 2 250 00
2.Asrcraft 0 1 25.0 260 0.0 0 00 00 1 2 12.5 250
3-Light Phenom. 0 00 0.0 0 00 0.0
4-Birds 0.0 o 0.0 00 0 0 O -
5-Clouds, Oust, etc. D o 20 00 0 O 0.0 00 O 0
6 insuffic. Into. / 0 1 250 25.0 0.0 0 2 00 / O 12.5 00
7.Psychological 00 2000 0 0 0.0 20 0.0 00
8 Unknown 01 2500025.0 0 00.000 0.0 3 0 3 150 00 150303 375 00 37.5 -
9.0ther 00000000.0 000000.00000 0 00,00000 00 00.0000
Total 2 24500500100101100000400.40 410000.0100 71887.5125100.
-
MAY Juse Jory AUGUST
Per Cent Per Cent Number Number -
Evaluation Certain Doubtful Doubtful Doubthul Total Certain Dou btful Total
G-Bailoon / 12.5 / 5.9 0 00 0.0 0 3 0.0 11.5 11.5
1-Astronomical 0 2 0.0 25.0 3 6 9 17.6 35.3 52.9 9 6 15 33.3 22.2 55.5 3 115 11.5 22.0
2-Aircraft 1 / 12.5 250 3 0 3 17.6 00 176 5 2 7 18.5 7.4 25.9 8 10 30.8 7.7 38.5
3-Light Phenom. 2 0.0 12.5 12 5 0 / 0.0 5.9 5.9 0 00 20 3.8 3.8
4-Birds 4-Birds 2.0 0.0 2.0 0.0 00.0 0.0 00 20 0.0 00 0 000 000d0 2.0 ad 0000 2.00.0 00
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0 0.0 00 0 00 a0ae 00000000.00.000 2 0.0
6-Insuffic. Into. 6-Insuffic. Info. 2 0 25.0 0.0 20 2 11.8 0.0 11.8 1 0 1 37003.7 1 0 138 00 3.8 37 0 138 00 3.8 | -
7-Psychological 0 20 00 a0 0.0 0.0 20000000000000 0 02000000 0000 0.000
8-Unknown 8-Unkno wn 0.0 000 0.00.0 1 01 0.00.01 0 5.9 59 3 0 3 11.1 00 11.1 4 0 4 15.4 0.015.4 0311.100 11.14 04 15.40.015.4
9-0ther 0000.0 0000000 0000 00000 00 0.00.0 1 013.70.0 3710 138 003.8 0.0 0.0 1 0 /370.0 3710 138 00 3.8
-
Total 6 2875025.0 100 10 7 1758.841.2100.19 8 2770.429.6 100.18 8 2669.230.8100 6 2 8750 25.0 100 10 7 1758.8 41.2100.19 827 70.429.6100. 18 8 2669.230.8100
SEPTEMBER SEPTEMBER OCTOBER OCTOBER NOVEMBER DECEMBER ECEMBER
Number Per Cent Number Per Cent
Evaluation Certain Doubthul Doubtful Doubtful Total Certain Certan Doubtful Total Dou btful Total
G-Balloon 0 / 1 11 111 0 0.0 00 0 00 0.0 -
1-Astronomical 2 0 22.2 22.2 00 222 3 3 20.0 20.0 40.0 40.0 60.0 2 46.7 46.7 0.0 667 66.7 0 / / 0.0 1000100.0 1000 100.0
2-Aircraft 2 2 222 222 00 0.0 0 0 O
3-Light Phenom. 0.0 0 00 0.0 0 O O
4-Birds 0 1 1 111 0 O O 00 0.0 20 0.0
5-Clouds, Dust, etc. 2 0 20 0.0 00 0.0 0
6-insuffic. into. 0 20 0.0 00 0 0.0
7-Psychological 0000000 0 0.0.00 2 0 00 0 0.0
&-Unknown 30 3 333 0.0333202400 0.0 400 1 0 / 53.3 0.0 33.3 0 00 0000
9-0ther 0000.0.0000 02 0 0d0.0·0.0 0 0 0.00 20 00 0 0.000 00.00
Total 5 4955644.4100.32 5400400100 3 0 3V0000.0100. 00.01000 100
182

(2)
description of th sighting;
(3 completeness of the report;
(4) Consideration of the observer's fact-reporting ability
and attitude, as disclosed by his manner describing
the sighting.
In cases in which insufficient information was available to make a judgment
of the observer report, none was made, but the report was accepted for
for objects m
were recognized as major categories. The less frequent, but common
objects, such as kites, fireworks, flares, rockets, contrails, and
11

TABLE A120 EVALVATIONOEOBJECT SIGHTINS FOR AUL YEARS BY DURATION OF SIGHTING
FOR MONTHS OE YEAR ELEVEN TO THIRTY SECONOS
JANVARY FGBRUARY MARCH APRn
Number Per Cent Number
Evaluation Total Certain Certain Doubtful Doubtful Total
0-Balloon 0.0 00 0.0 0 / 10.0 0 0 0.0 00
1-Astronomical 2 2 le6.7 467 0 500 0 0.0 0.0 / 3 182 9.1 273
2-Aircraft 00 0.0 e0 1 1 0.0 50.0 0 / 10.0 100 2 3 2.1 182 27.3
3-Light Phenom. 0.0 00 20 0.0 0 1 0 / 91 00 9.1
4-Birds 0 20 00 0.0 O 0 0 0.0 0 / 9.1 91
5-Clouds, Dust, etc. Q 0 0.0 0 00 O 0.0
6 Insuffic. Info. / / 333 0.0 333 0 00 0.0 0 00
7-Psychological 0 00 0 0.0
8-Unkno wn 0 0.d 0.0000 0 2.0 0.0 2 20.0 200202 182 0.0 182
9-0ther 0 2 o.d 0.0000 00 0.0 00 10.0 500 60.d1 0 19.1 0.09.1
Total 3 03 10000.0100 2 0 2 10000.0 100. 46 1040.060.0100 8 3 11 72.727.3 100.
MAy JUNE Jucy AUGUST
Number Per Cent Number
Evaluation Doubtful Total Doubtful Total Certain Certain Dou btful
0-Balloon 1 0 83 0.0 8.3 1 5.9 3 6 4.8 4.8 9.6 0 / 00 30 3.0
1-Astronomical / 0 83 0.0 8.3 2 3 5.9 11.8 172 6o 1 9.7 1.6 11.3 6 5 11 18.2 151 333
2-Aircraft / 2 8.3 83 l66 5 7 29.4 11.8 41.2 14 15 29 22.6 242 46.8 3 9 18.2 9.1 27.3
3-Light Phenom. 0 00 O 0.0 0 / 30 30
4·Birds 4-Birds / 83 0 0.0 00 2 0 0.0 00
5-Clouds, Dust, 5-Clouds, Dust, etc. etc. 0 0.00 00 0.0 0.0 0 00 00 O
6-Insuffic. Info. 6-Insuffic. Into. 4 0 0 4 333 00 00 33.3 3 0 317.6 3 317.6 17.6 2 3.2 0.0 2 61 6.1
7-Psychological 7-Psychological 0 0.0 00 0.0 000 0000 3 2 5 2 5 4.8 32 80 00
8-Unkno wn 8-Unknown 0 2 16.7 16.7 0.0 16730 317.6 0.0 1673 0 317.6 0017.612 0 12 20 17.6 12 0 12 194 194 0.018.490 0.0184 90 9 27.3 00 273 27.3
9-0ther / 0183 0083 0 0000000.0 101 183 00 83 0 0000 000.0 1 0 11.6 001.4 0 0 0 1.4e 00.6 0 0.0 00 00 0.0
Total 10 2 12 83.316.7 100. 13 41776.523.5100. 41 21 6266.133.9100 23 10 3369.730.3100.
SEPTEMBER OCTOBER NOVEMBER DECEMBER DECEMBER
Number Number Per Cent
Evaluation Doubthul Certain Doubtful Doubtful Total Doubtful Dau btful
0-Bailloon 0-Bailoon 2 2 20 14.3 14.3 0 0 0 0.0 0.0 00 22.2
1-Astronomical 0 / 1 00 0.0 71 Z1 7.1 2 3 8 22.2 33.3 33.3 500 0.0 50.0 50.0 1 / 2 11.1 00 11.1
2-Aircraft 4 3 7 28.6 21.4 50.0 / 2 11.1 22.2 33.3 2 50.0 00 500 0 3 0.0 33.3 333
3-Light Phenom. 0 00 0.0 0 00 0.0 0
4-Birds 0 0 20 0 00 0.0
0 5-Clouds, Dust, etc. 1 71 71 / 11.1 00 00 0 0 0.0
6-Insuffic. Info. 2 14.3 00 143 / 0 / 00 11.1 0 06 O 0.0
7-Psychological / 0 1 71 0.0 1.1 0 20 0.0 00 00
& Unknown 00 0 / 0.0 11.1 0 2 2 22.2
9-0ther 0 00 20 00 0.0 0.0 00 000 11.1 11.1
Total 1 7 14 50050.0100. 5 4 9 55644.4100. 404 100000100. 459 44.4 55.6 100
183

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TABLE A121 EVALUATION OF OBJEET SIGHTINGS FOR ALL YEARS BY DURATION OE SIGHTING
FOR MONTHS Of YEAR THIRTYONE TO SIXTY SECONDS 1
JANUARY FEBRUARY MARCH APRI
Number Per Cant Per Cent Number Per Cent
Evaluation Certan Doubtful Total Certan Certain Doub thul Doubtful Total Certain Doubthul Tota
0-Balloon 0.0 00 0 a0 / 1 0.0 14.3 0 / 83 8.3
1-Astronomical 00 0.0 0.0 I
00 0 0 0 ao 0.0
2-Atrcraft 0 1 2 3 20.0 40.0 600 0 1 14/.3 0.0 14.3 0 / / 0.0 8.3 8.3
3-Light Phenom. 0 Q 00 00 0.0 0 0 0.0
4-Birds 0 00 0.0 0.0 0 3 42.9 0.0 I
S-Clouds, Dust, etc. 0 0000 0.0 0.0 0 0 0.0
6-Insuffic. info. 0 0000 e 0 0.0 0.0 0.0 ao 00 2 0 2 16.7 16.7
7-Psychological 0 00 00.000 0 00 0.0 ao a0 0 0.0
8-Unkuno wn 0 1 100.0 0.0veod 1 01 20.0 0.0 20.0 / 0 14.3 0.0 143 8 66.7 0.0 lo6.7 1
9-0ther 0 0.0 00 0001 20.0 0.0 / / 0.0 14.3
Total 1 0 110080.0 100 3 2 5 600 40.0 100. 6 1785.7V4.3 yoo 10 2 12 833 16.7 100.
1
MAY JUNE Ju24 AUGUST
Number Per Cent Number Per Cent Number Per Cant |
Evaluation Certain Doubtful Total Certain Doubtful Certain Doubtful Total Doubthul Dau btful Total
0-Bailoon 0 0 00 0.0 ao 0.0 00 2 7 11.1 4.4 15.5 4 5 3.1 12.5 15.6
1-Astronomical 2 0 33.3 333 0 0.0 a.0 / / 0.0 2.2 3 6 9.4 188
2-Aircraft 0 2 33.3 0.0 3 2 5 375 25.0 62.5 12 10 22 26.7 22.2 489 3 2 5 9.4 6.3 •I
15.7
3-Light Phenom. 0 0 0.0 O 0.0 00 0 / 1 2.2 2.2 1 1 0.0 31 3.1
4-Birds 4-Birds O 0 0.0 0. 0. 0 00 00 e 0 0.0 ao ao 1 0 1 2.2 0.0 0
S-Clouds, Dust, etc. 0 2 2 0 0.0 0.0 O. O 0 00 O 0 O 0.0 00 a0
6-insuffic. Info. 6-Insuffic. Info. 0 0.0 0 3 0 3 3 6.7 0.0 6.7 4 4 12.5 12.5 1
7-Psychological 0 0.0 0.0 0 O 0.0 0 2 6.3 6.3
8-Unknown 8-Unknown 0 2 33.3 0.0 2 0 25.0 0.0 25.0 10 10 222 22.2 9 0 9 28.1 0.0 28.1
9-0ther 0 0 0 0.0 0.0 1 / 12.5 0 0.0 0.0
1
Total 6 0 1000 100.0 0.0 100. 5 3 8 62.537.5100.32 1345 62537.5100. 32 13 45 7/1 71.1 28.9100. 28.9 Voo. Z2 22 10 32/81 32 187 31.3 Voo. 100.
|
SEPTEMBER SEPTEMRER OCTOBER NOVEMBER DECEMBER DECEMBER
Number Per Cent Per Cent Per Cent Num ber Per Cant
Evaluation Certain Doubtful Total Doubthul Total Certain Doubtful Certan Doubthul Total Doubtful Doubthul Doubthul Total Certain Dou btful Dou biful
G-Bailoon 0 / 1 0.0 17 77 1 20.0 0.0 20.0 0 0.0 00 20 / 1 2 8.3 16.6 |
1-Astronomical 1-Astronomical 2 / 1 3 15.4 15.4 77 77 231 0 0 O 0.0 2 0.0 500 500 500 / / 8.3 83 166 166
2-Aircraft 3 / 4 23.1 7.7 308 1 0 1 20.0 0.0 / 0 25.0 0.0 250 3 / 4 8.3 33.3
3-Light Phenom. 0 0 0.0 0.0 0 00 0.0 0 0.0
4-Birds / / 0.0 17 0 0 00 0.0 0.0 0 O 0.0 ao
5-Clouds, Dust, etc. 0 0 0.0 0 ao 0.0 0 O 0.0
6-insuffic. into. / / 77 0.0 77 0 0 0.0 0 / 25.0 O 0.0
7-Psychological 0 0.0 0.0 0 0.0 ao 0
8-Unknown 3 0 3 23.1 0.0 23.1 0 60.0 60.0 O 0.0 0 2 16.7 0.0 167
9-0ther 0 0 0.0 0 a.0 Q0 0.0 O 0.0 2 0 16.7 167
Total 9 4 13 69.230.8100. 50 5 1000 0.0 100. 2 4 500 9 3 12 750 25.0100.
184

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TABLE A122 EVALVATION OF OBJECT SIGHTINGS FOR RLL YEARS BY DURATION OE SIGHTING.
FOR MONTHS OF YEAR S1XTY ONE SECONDS TO EIVE MINUTES
JANVARY FEBRUARY MARCH APRIL
Number Per Cent Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Certain Doubthul Total Doubtful Doubthul Tot
GBalloon / 2 10.0 20.0 0 0.0 100 11.1 0.0 2 7.7 00 7.7
1-Astronomical 2 0 2 200 0.0 20.0 / 10.0 10.0 0 0.0 00 00
2-Aircraft 2 / 3 20.0 100 30.0 1 0 100 0.0 10.0 2 4 222 22.2 444 7 2 9 26.9 7.7 34.6
3-Light Phenom. 0 0 2.0 0.000 O 0.0 o O 0 00 0.0
4-Birds 0 00 0000 0 0.0 0.0 1 3.8
5-Clouds, Dust, etc. 0 00 0d000.0 0 0.0 00 1 00 11./11 0 O 0.0 0.0
6-Insuffic. into. / 01 ved 00100 2 0 20.0 0.0 20.0 2.0 0.00.0 3 O 11.5 0.0
7-Psychological 0 0.00.000 0 00 0.00.0 00 00001 38 0.0 3.8
8-Unknown 011000.010d3 300 0.030.0 O 2 22.2 0.022.290 9 0.0 34.6
9-0ther 1 0110.00.010.02 02 2000020.00 110.0 11.1 11.1101 38 0.0 3.8
Total 8 2 1080020.0100 9 1 1090.010.0100 5 4 9 55.644.4100. 24 2269 9237.7 100
MAY JUNE Ju44 AuGust
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Total Certain Doubtful Doubtful Total Certain Dou bthul
0-Balioon 6 7 25.0 4.2 29.2 / 21.4 3.6 11 10 27 14.9 8.8 23.7 10 12 22 15.6 18.7 34.3
1-Astronomical 0 / 0.0 4.2 3 3.6 7.1 10.7 0 2 0.0 1.8 1.8 / 1 2 16 1.6 3.2
2-Aircraft 3 5 8 12.5 20.8 333 U 14.3 286 18 12 30 15.8 10.5 26.3 10 4 14 15.6 6.2 21.8
3-Light Phenom. 0 0.0 22 D O 0 0.0 5 1 6 4.4 09 5.3 0 2 2 0.0 3.1
4-Birds 4Birds 0 0 00.00000 0 00 O 0.0 0.0 20 0000.00.00.0 0 00 O 0.0
S-Clouds, Dust, etc. 0 0 0.0 0.00.0 O 0.0 a0 00 000 0 0.00.0000 00 0.d 0.000 0 0.0 00
6-Insuffic. into. / 0 1 4.2 0.042 0 0 0.0 0.012 012 0.012 /2 10.50.010.53 0 3 10.5 0.010.53 0 3 0.0 4.7 4.7
7-Psychological 0 0 0000 0.000 0 0.0 00 0.0 2 3 5 2 3 5 1.8 2.6 44 2 1.8 2.6 44 2 1 3 3 3.1 1.6 1.6 4.7
&-Unknown 6 0 6 25.00.025.0 7 0 25.0 0.0 0.0 25.029 02925.40.0 25.416 016 2925.40.0 25.416 016 25.0 0.0 25.0
9-0ther / 1 01420.04.2303107 01420.042 3 0 3 107 0.010.7 3032.60.0 2.6 2 02 0.0 10.7 30 3 2.60.0 2.62 0 23.10.0 3.1 0.0
Total 17 7 24 708 29.2100.21 2 28 75.025.0100. 86 28 114 75.424.6100.44 20 6468.8 31.2100. 17 7 24708 29.2100.21 2 2875.025.0100. 86 28 11475.4 24.6100. 44 20 6468.831.2100.
SEPTEMBER OCTOBeR CTOBER NOveMBER DECEMCER ECEMCER
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Total Doubtul Doubtful Certain Doubtful Total Doubthul Doubtful Total Certain Dou btful Dou bifu!
0-Balloon 3 5 8 8.6 14.3 22.9 2 4 6 8.7 17.4 26.1 2 0 0 250 250 0.0 25.0 / 3 11.8 11.8 5.9 17.7
1-Astronomical / 1 2 2.9 5.8 0 0.0 00 8.787 8.7 87 1 12.5 0.0 12.5 0 / / 00 5.9 59
2-Aircraft / 12 13 2.9 34.3 37.1 3 6 13.0 13.0 26.0 0 0 0.0 / 4 5 5.9 23.5 29.4
3-Light Phenom. 0 00 0.d 2.0 0 0.0 / 12.5 0.012.5 0.0
4-Birds 0 0.00.0 0 0.0 2.0 0 0.0 0.00.0 0.000
5-Clouds, Dust, etc. 2 0 0.0 000.0 0 O 2 0.0 25.0 250 2 0 000.0
6-insuffic. into. 0 1 2.9 0.02.9 / 0 / 4.3 0.04.3 0.00.00.0 2 11.8 0.0
7-Psychological 0 0.0 0.000 0 0.0 0.00.0 0.00.0 0.0 0 0 0.0
8-Unknown 1 0 11 31.4 0.031.4 7 30.40.0 30.4 2 0 2250.0.025.0 6 06 35.3 0.0 35.3
9-0ther 0 20 0.0.0.0.0.0 1 01 4.3 0.04.30000.00.00.000.0 0.00.00.0
Total 17 18 35 486 51.4 100. 14 9 2360.939.1100 6 2 8 75.025.0100. 11 6 1764.735.3 100.
---
185

-
1
TABLE 8123 EVALUATION OF OBJEET SI6HTINGS FOR ALL 4EARS BY OURATION OF SIGHTING
FoR MONTHS OF YEAR S/X 70 THIRTY MINUTES I
JANUARY FEBRUARY MARCH APRI
Number Per Cent Number Per Cent Number Per Cent
Evafluation Certain Doubtful Total Doubthul Total Certain Doubtful Total Doubthul Certain Tota
GBalloon / 2 7.7 154 2 0 250 00 25.0 / 100 10.0 200 0 0 00 0.0 00 1
1-Astronomical 3 e 3 23.1 0.0 23.1 1 0 / 12.5 0.0 12.5 / 0 100 0.0 2 15.4 15.4
2.Asrcraft 2 / 3 15.4 77 23.1 0 2 00 250 1 2 100 20.0 300 4 30.8 00 30.8
3-Light Phenom. O 0 0.0 O 0.0 0 0 0.0 O 00
4-Birds 0.0
0 e 0.0 0.0 0 00 0 00 O 00 -
5-Clouds, Dust, etc. 0 O 0 0.0 0.0 00 0 O 00 O 0.0 20
6 Insuffic. into. 0 0 00 a000 O 0.0 00 0 0.0 / / 2.7 0.0 7.7
7-Psychologi cal / 0 / 7.7 0.0 0 0 0.0 00 20 00 0
& Unknown 3 03 00 23.1 0 0 0.0 0.030 33000.0 30d 462 00 1
90ther 0127 0.0 7.7 3 0 3375 0.087.501100100100000 0.0 00·00
Total 1121384.615410062815025.0100.64106004001001301310000.0100
1
MA4 JUNE Jucy AUGuST
Number Per Cent Number Number Per Cent Per Cent |
Evaluation Certain Doubtful Total Doubthal Doubtful Total Certain Doubtful Total Certain Doubthul Dou btful
G-Balloon 7 2 9 26.9 77 34.6 1 9 20.6 5.9 26.5 21 11 32 196 10.3 29.9 10 27 21.3 12.5 33.8
1-Astronomical 2 / 3 77 3.8 11.5 2 0 5.9 00 5 4 9 4.7 37 84 8 10 10.0
2-Aircraft 2.5 12.5
3 1 4 11.5 38 15.3 U 7 11.7 88 20. 5 15 8 23 14.0 7.5 21.5 10 16 7.5 12.5 200
3-Light Phenom. 0 3 11.5 00 1 O 2.9 0.0 3 2 5 2.8 1.9 4.7 7 0 38 0.0
4-Birds 4-Birds 0010.00000 0 0.0 00 0.0 2000000·000000.00.0000 0 0 00 00 0.0 0
5-Clouds, Dust, etc. 3.8 0.0
/ 1 0 / 00 00 38 O 0.00.0000000.0 0.0 0.0 02 O 0 00 0.0 0 1 / 13 1.3
6-Insuffic. Info. 6-nsuffic. Into. 2 02 0 7.7 7.7 00 2.7 2 0 2 5.9 00 5.9 15 0 15 14.00.014.0 6 0 5.9 15 015 14.0 0.04.0 0 6 7.5 0.0 7.5 1 —
7-Psychological 7-Psychological 0 0.0 00 00404 0.0 4 8.8 8.8 00 88 10 1 01 0.9 0.9 0.00.9 0 0 2 2.5 00
8-Unkno w / 0 3.8 003890926.500 00 38 9 0 9 26.500 26.517 01715.90.0 15.910 0 26.517 01715.90.015.9 10 0 10 12.5 0.0 12.5
9-0ther 2 3 3.8 3.8 7.741.50 00000.00.0 4 15 37094.6 4 15 77 1.500.0000.0 0.0 4 15 3709 4.6 4 15 5.0 1.3 6.3
| 1
Total 20 6 26 76.923.1100. 29 5 34 85.314.7 100 81 26 107 75.7 24.3100.56 24 80 70030.0 100. 20 6 26 76.9 23.1100. 29 5 34 85.3 14.7 100 81 2610775.724.3100. 56 24 80 700 30.0 100.
|
SEPTEMBER OCToBeR NOVeMBeR NOVeMBER DECEMBER DECEMAER
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtul Total Doub thul Certain Total Doubtful Doubthul Certain Doubiu Total Doubtful Docu btful Total Dou biful Total
0-Balloon 3 / U 4 13.6 4.5 4.5 18.1 18.1 0 6 0.0 33.3 33 33.3 2 2 3 5 5 9.5 14.3 14.3 23.8 / 3 8.3 4.2 12.5 4.2 12.5
1-Astronomical 2 0 0.0 00 9.1 3 3 56 56 11.1 16.7 2 5 9.5 14.3 238 23.8 / 5 16.7 4.220.9 4.2 20.9
2-Aircraft 2-Aircraft / 4 5 4.5 18.2 22.7 2 5.6 11.2 0 3 0.0 14.3 143 2 4.2 8.3 12.5
3-Light Phenom. 3
/ / 2 4.5 90 56 5.6 11.2 2 4.8 4.8 4.6 42 00 4.2
4-Birds Q 0 0 00 0.0 0.0 / 5.6 0 00 00 0 0.0
5-Clouds, Dust, etc. 0 0 00 0.0 2 00 0 0.0 00 0.0
5-insuffic. into. 2 2 9.1 00 21 1 O / 5.6 0.0 5.6 0 / 4.8 00 48 2 2 8.3
7-Psychological 2 0 0 00 0.0 00 0 / 0 1 4.2 0.0 4.2
&Unknown 0 6 27.3 0.0 3 03 16.7 0.0 16.7 5 0 5 23.8 00 8 0 33.3 0.0 33.3
9-0ther / 01 4.5 0.04.500000000000000 00 0.01 01 0.0 4.2
Total 148 22 63.636.4 100.7 11 1838.961.1100. 11 10 21 52.4 47.6100.20 4 24833 16.7100
186

TABLE A124 EVALUATIDN OE OBJECT SIGHTINGS EOR AUL YEARS 8Y OVRATION OF SIGHTING
FOR MONTHS Of YEAR OrEe THIRTY MINUTES
JANUARY FEBRUARY MARCH APRIL
Per Cent Number Per Cent
Evaluation Certaen Certain Doubtful Total Doubthul Total Certain
0 Balloon / 0 1 33.3 0.0 / 50.0 2 50.0 00 500 S 3 333 00
1-Astronomical 0 1 0.0 33.3 333 O 50.0 1 / 250 00 26.0 2 0 22.2 22.2
------ 2.Aircraft 0 0.0 0 00 0.0 / 00 11.1
3-Light Phenom. 0 0.0 0 00 0.0
4-Birds 0 0 0.0 00 00 O 20 2 0.0
S Clouds, Dust, etc. 0 o 0 00 O 0.0 00
6-insuffic. into. 0 0 00 00 20 0.0 0.0 / 1 11.1 111
7.Psychological 0 20 0.0 00 00600 0 0.0
8-Unkno wn 0 0.0 00 0 0.00.01 01 25.000 25.0 2 22.2
30mer / 0 1 00 333 0 O e 000.0.00000 0.0000.00 0.0
Total 21 3 44.733 3100 2 0 2V00d0.0100.4 40000.0 10081988.911.1100
MAy JUNE J04y AUG051
Per Cent Number Per Cent
Evaluation Doubtful Certain Total Total Certain Doubtful Certan Doubtful Total Dou bitful
G-Balloon 0 0 0 0.0 0.0 6 2 8 37.5 12.5 50.0 1 4 11 14.0 80 22 6 3 9 162 8.1 24.3
1-Astronomical 0 0 0.0 E 25.0 25.0 6 4 10 12.0 80 20.0 1 13 18.9 16.2 35.1
2-Aircraft 0 0.0 00 O 2 12.5 0.0 6 4.0 8.0 12.0 3 5.4 2.7 8.1
3-Light Phenom. 0.0 0 O 0 0 / 2.0 2.7 2.7
4-Birds 0 a i2 2 0.0 0 0.000 00
5-Clouds, Dust, etc. 1 0 / 50.0 50.0 500 500 O 00 0.0 0 20 0.0000 0
6-insuffic. Info. 00 00 0 0 2 0.0 4 4 0 4 O 4 8.0 801 012.7 80 / 2.7 0.0 2.7
7-Psychological 7-Psychological 0 2 0.0 00 O 0 0.0 12 / 2.0 4.0 2 4.0 0 2 0 5.4 5.4
8-Unkno wn 8-Unknown 0 00 / 6.3 6.3 14 14 014 0 28.0 0.0280 0616.2 0.0 2806 6 16.2 0.0 16.2
9-0ther 1 1 0 50.0 00500 e 10 / 6.3 0.0 2 2 02 02 400.0 4.0 0 2 2.0.0 5.4 5.4 4000 40 02 2 0.0 5.4 5.4
Total 20 2 1000 0.0100. 14 2 16 81.512.5100. 37 13 50 74026.0100.24 133764.935.1100 2 1000 0.0100. 14 2 1681.512.5100. 37 13 50 740 26.0100. 24 133764.935.1100
SEPTEMBER OctoseR CToseR NOVEMBER DeceMBER DecEMBER
Number Per Cent Per Cent Number
Evaluation Doubtful Certain Doubtul Doubthul Doubtfu! Totai Total Doubtful Certain Doubithul Tatal Dau btful Dou btful Total
G-Bailoon G-Bailoon 2 2 00 8.7 3 3 1 / 4 30.0 10.0 40.0 40 C 0 0 0.0 0.0
1-Astronomical 3 3 1 / 4 U 13.0 43 17.3 0 0 1 10.0 0.0 10. 0 2 5 5 23.1 154 385 / 2 33.3 33.3 66.6 66.6
2-Aircraft 2 4 8.7 17.4 0 0.0 / 77 0.0 77 0.0
3-Light Phenom. O / 00 4.3 00 0 2.0 0.0 0 0.0
4-Birds / 0 1 00 4.3 10.0 00 O 0 0.0 0.0
0 5-Clouds, Dust, etc. 0 e0 0060 00 O 0 0.0 0.0
6-insuffic. into. 2 0 287 0087 2 154 001540 0 0.0
7-Psychological 0143 0.043 0 0.0 0.0 / O / 7.7 0.0 7.20 0 0 00
&-Unkno wn 7 0 7 30.40.0 30.4 3 03 300 30.0 3 23.10.0 23.1 0 0 0 0.0 0.00.0
9-0ther 1 014.30.0 4.30 1 1 0.0 10.0 100101 220.0 7.2 1 0 1 33.30.0 33.3
Total 17 6 23 73926.1100. 82 1080.020.0 100. 11 2 1384.4 15.4100. 2 1 3 66733.3100.
0
187

1
1
TABLE A125 EVALUATION OE QBJECT SIGHTINGS FOR ALL YEARS BY DURATION OE SIGHTING
EOR MONTHS OE YEAR DURATION NOT STATED -
JanyaeY FEBRUARY MAREH APRIL
Per Cent Number Number
Evaluation Doubtful Certain Doubtful Certain Doubthul Total
0-Balleon 2 0 0 0.0 11.1 3 3 86 8.6 1 / 2 2.7 2.7 5.4 -
1-Astronomical 5 1/ 27.3 22.7 50.0 6 10 22.2 38.3 555 7 12 20.0 143 34.3 6 2 8 16.2 5.4 21.C
2-Aircraft 0 91 0.0 / 3 11.1 5.6 16.7 3 6 8.6 17. 2 6 O 6 16.2 0.0 16.2
3-Light Phenom. O 0.0 e.0 00 00 0 0 0.0 a0
4-Birds D 0.0 0.0 O 0 00 / / 2.7 2.7 -
5-Clouds, Dust, etc. 0 0.000 00 0.0 0 2 0.0
6-Insuffic. Into. 5 05 22.1 0.0.227 0 1 5.6 0.0 5.6 10 286 28.6 12 32.4 00
7-Psychological 0.000 0 0 0.0 0.0 / 1 2.7
8-Unknown 2 91 0.0 91 2 11.1 0.0 11.1 / 2.9 00 7 0 18.9 0.0 189
9-0ther 2 02 9.10.09.1000 0.0 0.00.0 03 3 00 86 0
Total 17 5 22 77.322.7100 111 1861.138.9100.24 113548.631.4100. 34 33791.9 8.1100.
1
MAY. JUNE Jucy AUGUST
Per Cent Number Number 1
Evaluation Certain Doubthul Doubtful Total Certain Doubtful Dou btful
0-Balloon 2 0 5.9 00 5.9 6 0.0 15.8 20 9 29 12.3 5.6 17.9 5 3 8 6.7 4.0 107
1-Astronomical 10 12 29. 4 5.9 35.3 2 1 0.0 2.6 9 15 56 3.7 9.3 2 5 7 2.7 6.7 9.4
2-Aircraft 3 4 7 8.8 11.8 206 5 10.5 2.6 13.1 21 12 33 130 74 20.4 9 16 12.0 9.3 21.3
3-Light Phenom. 0 1 / 00 2.9 29 0 3 3 1.9 0.0 19 0 2 2.7 0.0
4-Birds 2110.0 2.9·2.9000 2 0.0 2.9 2.9 0 I 2 2 0.6 0.6 06 1.2 0 0.0
5-Clouds, Dust, etc. 0 00000.00.00 00 00 000.00.0 0 0.0 / 1 1 06 06 0.0
6-Insuffic. Info. 6 06 0 17.60.0 17.6120 17.60.0 17.6 12 31.6 0.0 3/.6 35 35 35 21.6 21.6 0 19 253 1
7-Psychological 0 d0 0 0.0.0.00.020 0.00.000 2 2 5.3 00 1 / 3 06 12 1.2 1.8 1.8 1 1.3 0.0 0.0
8-Unknown 5051470.0 14.7100 10 5 05 4.7 0.0 14.710 0 10 0.0 26.3 30 e 30 185 18.5 18.5 19 0 19 253 25.3
9-0ther 9-0ther 000000.00.0202 0 00 00 0.00.0202 0.0 0.0 53 5.3 1/ 011 2 11 6.8 0.0 6.8 2.0 / 3 2.7 1.3 4.0 - -
Total 26 8 3476.523.5100. 37 1 3897.42.6 100. 132 30 162 81.5 18.5 100.59 16 15787 21.3 26 8 34 76.523.5100. 37 1 3897.42.6 100.13230162 81.518.5 100.59 16 1578.721.3 100.
|
SEPTEMBER OETOBER NOVEMBER DECEMBER
Per Cent Per Cent Number
Evaluation Doubtful Total Certain Doubtful Total Certain Dou btful Total 1
0-Balloon 0 0 0.0 2 / 3 3 6.5 6.5 3.2 9.7 1 6 6 1 2.6 15.8 18.4 / 5.0 0.0 5.0
1-Astronomical 1-Astronomical 6 3 3 9 158 15.8 7.9 7.9 23.7 23.7 2 6 8 6.5 6.5 19.4 25.8 7 7 4 11 11 18.4 10.5 289 3 5 10.0 15.0 25.0 250
2-Aircraft 1 / 2 2.6 2.6 5.2 4 6.5 6.5 13.0 5 7 13.2 5.3 185 A 3 10.0 50 150
3-Light Phenom. 0 00 0 O D 0.0
4-Birds 2 00 0 2 0.0 O 0.0
5-Clouds, Dust, etc. 0 00 O 0.0 0 0.0
6-Insuffic. into. 9 0 237 23.7 6 6 19.4 19.4 0 3 0.0 7.9 5 5 25.0 0.0
7-Psychological 1 2 2.6 / 3.2 32 0 0.0 / 5.0 5.0
8-Unknown 010 26.3 0.0263 80 0.0 25.8 0 8 21.0 2 0 100 10.0
9-0ther 61 7 15.82.6 /84101 3.2 32 20 5.3 0.0 5.3 3 0 3 150 15.0
Total 335 3886.8 13.2 100.22 9 31 71.0 29.0100 26 12 38 68.431.6400. 16 4 20 80.0 20.0 100
188

TABLE A126 EVRLUATION OE ALL SIGHTINGS FOR PLLYEARS
BY SHAPE OF OBJECT ELLIPTICAL
Al YEARS 1947 1948 1949
Number Per Cent
Evaluation Doubtful Total Certain Doubtful Total Certin Total Certain Doubtful Total Certain Total
0Balloon 159 110 249 105 7.3 178 5 0 5 00 89 10 15 25 108 16/ 26.9 2 8 3.5 12 47
1·Astronomical 70 151 332 11.8 00 21.8 12 4 21.4 7.1 285 14 18 34 77.2 19.436619 65 84 11.0 37.6 486
2-Aircraft 81 141 322 1.9 93 21.2 / 2 18 1.8 3.6 6 6 6.5 00 65,3 4 22 7.5 5.2 12.7
3-Light Phenom. 16 17 33 1 1.122 2 36 003.6 0 5 50054540 0 0 00
4-Birds 10 414 0.2 03 1.00 o 20 00000 110011114 0 4 2.3 00 2.3
5 Clouds, Dust, etc. 3 4 7 0.2 03 05 0 O o 0000 000 0000000 C 0 0.0 00
6-Insuffic. Into. 134 0 134 88 0.0 88 6 0 6107 00107 7 0 7 7.50.07.5 19 0 19 1.0 0.0 110
7-Psychological 17 8 25 1.1 0.5.1.6 2 2 4 36 3672 1 0 1.1 0.01.1 2 0 2 1.2 00 1.2
&-Unknown 231 033121.8 0.0 21.8 9 0 9 14.1 0.016.1 10 0 10 108 0.0 10.8 31 0 31 17.9 0.0179
9-0ther 42 10 52 2.8 0.7 3.5 12 0 12 21.400214 2 2 4 2.2 2.2 4.4 3 0 3 1.7 0.01.7
Total 1072 455÷1517 70.729.3100. 44 75687.512.5 100. 52 41 43 55.944.1100. 97 76.173 54.43.9100
1950 1951 1952
Number Per Cent Per Cent
Evaluation Total Certain Doubtful Certain Total Doubtful Doubthul Total Dou btful Total
O-Balloon 18 2 20 13.3 1.5 148 5 / 6 10.9 2.2 13.1 1/5 90 205 11.3 8 9 20.2
. 1-Astronomical 13 7 20 9.6 5.2 14.8 4 2 11 43 23.9 110 55 165 10.8 5.4 162
2-Aircraft 15 2 17 111 15 126 4 / 5 87 2.2 109 142 128 270 14.0 12.6 26.6
3-Light Phenom. 0 0.0 0 1 / 00 2.2 14 11 25 1.4 1125
4-Birds 4-Birds 0 0 e 20.0.0.00011 00.0.0.00 2 / I 0.02.2 0.0 2.2 6 2 8 2 8 0.6 0.20.8 0.20.8
5-Clouds, Dust, etc. 0 0 02d00 0000.0 2d00·000 00 0.000 3 4 703,04 0.7 7 0304 0.7
6-Insuffic. Into. 33 0 244.0.0 24.440 244.0.024.44 0 4 8.7 0.0 8745 87 45 065 65 6.4 00 6.4 6.4006.4
7-Psychological 4 0 0 4 3000300 1 30 00300 / / 0.0 2.2 2.2 8 513 0.8051.3 0.8 05 1.3
8-Unknown &-Unknown 36 0 36266 0.0 26617 0 36 2660.0 26617 0 17 370 0.0 17 3700.0 37.0228 37.0 0228 0 228 225 0.0 22.5
9-0ther 3 2 5 2.21.5 22 0 0 00.00.000 22 6 28 2 52.21.5 32 0 0 00.00.000 22 6 28 2.2 0.6 2.8
Total 122 1313590.4 9.6 100.39 746 84.815.2100.713301 101470.329.7100 122 13135904 9.6 100. 39 746 84.8 15.2100. 713 301 1014 10.329.7100
TABLE A127 A127 EVALUATION EVALUATION OF ALL SIGHTINGS FOR ALL YEARS
84 8Y SHAPE OF OBJECT OBJECT ROCKET ANO ARCRAET ROCKET ANO ARCRAFT
ALL YEARS 1947 1947 1948 1948 194.9
Number Per Cent
Evaluation Doubtful Totai Doubtful Doubtul Total Doubtful Total Certain Dou btful Total
0-Balloon 3 6 2.0 40 0.0 0 / 0.0 21 7.1 / 0 6.2
1-Astronomical 1-Astronomical 4 16 16 20 2.7 2.7 109 13.6 0 0.0 00 2 2 00 00 14/314.3 14/3 14.3 0 3 3 0.0 18.7 18.7
2-Aircraft 21 28 49 143 19.0 33.3 0 0 0.0 0.0 0.0 5 / 6 35.7 7.1 42.8 2 3 12.5 6.2 187
3-Light Phenom. 2 / 3 13 07 2.0 0 0 00 0.0 0.0 O 20
4-Birds 0 0 0.0 00 Q.0 00 0.0 20
5-Clouds, Dust, etc. 0 / 0.0 07 07 02000 0.0 0 00 000.0 0.0·00
6-Insutfic. info. 10 010 6.8 0.0 6.8 0 00000.0 0d / 0 / 1.4 0.071 2 0 2 12.5 0.0/2.5
7-Psychological 1 7 48 20 4.8 2 00000.00.0 0 00 000000 01 6.2 0.0 6.2
&-Unknown 4/3 0 43 293 0.0293 6 0 60000.0 1000 30 3 21.4 0.0 214 6 0 6 37.5 0.0 31.5
9-0ther 718 48 07 5500 0002.00.0 1 01 700 2.1 0 00 0.0 0.0 0.0
Total 9750147660340100.60610000.0100. 1041471.428.6100. 12416 75025.0100
1950 1951 1952
Per Cent Number Per Cent
Evaluation Certan Total Certain Totai Doubtful Doubtful Certain
G-Balloon / 0 7.7 00 1.7 0 / 00 4.8 1 2 1.3 2.6
1-Astronomical / 6 7 17 46.2 53.9 0 / 4.8 00 48 2 5 7 2.6 6.5 9.1
2-Aircraft 0 0 0.0 5 4 9 23.8 19.0 428 22 3/ 11.7 28.6 40.3
3-Light Phenom. 0 0 00 20 20 ld 0.0 0.0 2 / 3 2.C 1.3 39
4-Birds 0.00.0 ed 0 00000.0 O 0.0
S-Clouds, Dust, etc. 0 10.00000 00000d / 0.0 1.3 1.3
6 insuffic. info. 1770.0.272 0 2 9.50.095 0.0 5.2
7-Psychological 2 00.00.00.00 00 0.00.00.04 06 7.8 0.0
&-Unknown 0323/0.0.231707 33.30.0 333 180 18 23.4 00 234
3-0ther 0220.0 7.72 4.8 0.0 4.84 1 55.2 1.3 4.5 1
Totai 7 6 13538 44.21001652/26.223.8100.4631 77 59.7403100
189

-
I
TABLE A128 EVALVATION OE ALLSIGHTINGS EOR ALLYEARS
BY SHAPE OF OBJECT METEOR OR COMET -
Acl Yenes 1947 7
1948 1949
Number Per Cent Per Cent Number Per Cent
Evaluation Certan Total Certain Doubtful Total Doubtful Certain Doubthul Total Doubthul Tetal Doubtful Total Certain Doubtful Total
0-Balloon e 0.0 4.3 2 O 00 O 0 00 0.0 O 0 1
1-Astronomical 48 25 13 511 26.6 77.7 2 0 10d e0 v0oe 5 8 13 31.2 500 81.2 2 5 7 25.0 62.5 87.5
2-Aircraft 2 4 2.1 2.1 4/2 0 edee 0 00 0.0 O 00
3-Light Phenom. Q / 0.0 0 ed0000 0 00 00 O 0.0
4-Birds 0 / / 00 1.11.1 0000 00 0 0.0 0.0 / 00 12.5 -
5Clouds, Dust, etc. 1 / 00 111 20 0 e0eclea 00 0.0 0 0.0 00
6 Insuffic. into. 2 2 2.1002.1 0 00000.000 00 0 00 0.0 00 0 0 20 0.0 20
7-Psychological 0 ed a0.00 0 o 0edad0d 00 0 0.0 00 0 0.0
8-Unknown 8 885,0.0850 00 000.000 30318.8 0.0488 1
00 00
90ther 0 0 000000.d0 0 0 20 a00d0 e 0 0.0 0000 00 0 00 0.0
Total 64 3094 68131.9 100. 2 0 2400.00.0 100 8 8 16 50050.0100 2 6 825015.0 100
1950 1951 1952
Number Per Cent Number Num ber Per Cent
Evaluation Doubtful Total Certain Doubtful Total Certain Total Doubtful Doubthul Certain Dou btful
0-Balloon / 0 500 0.0 50.0 0 00 20 0.0 3 3 4.7
1-Astronomical / 0 00 50.0 / 1 2 50d 1000 37 1/ 48 57.8 17.2 15.0
2-Aircraft 0 00 0.0 0 0.0 0.0 2 4 3.1 31 6.2
3-Light Phenom. 0 0 00 00 o 0.0 0 / 1 0.0 1.6 1.6
4-Birds 4-Birds 00010000000000000 0 0 20 00 00 O 0.0 20 0 0.0 0.000 00
5-Clouds, Dust, etc. 0 0000.0000 0 00 0.0.00 0 0.0 00 0.0 21 / / 1.6 1.6 1.6
G-insuffic. Info. 00.0 0.0 |
0.0 00000 0 0 00 00.000 00 00 00 2 0 2 2 0 2 3.1 0.0 3.1
7-Psychological 000 00 0000 d 0 0 0 0 0 00 00 00 d 00 0.0 000 0 00 2000 2.000
&-Unknown 0 000.000.00 00000 0000.000.00 0 0000 0.0 00 505 18 1.8 0078
9-0ther 00 000 0.00d00 00.0 0.0 00 0 00.0.00d0 000000 00000 0.00000 0.0.0000 | |
Total 2 0 210000.0100 11250.050.0100 4915 6476.623.4100. 20 210000.0100.112 50.050.0100 4915 6476.623.4100.
TABLE A129 EVALVATION OF ALL SIGHTINGS FOR ALL YE ARS -
84 SHAPE OF OBJECT OF OBJECT LENTICULAR CONICAL OR TEAROROP LENTICULAR, CONICAL OR TEAROROP
ALL YEARS 194.7 194.1 1948 1949 1949
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubthul Certain Doubtful Total Doubtul Doubthul Total Doubthul Total Dou btful
0-Balloon -
29 5 34 184 3.2 21.6 0 0 0.0 0.0 2 1 3 1829.1 182 9.1 2%.3 8 0 8 53.3 0.0 533
1-A stronomical 1-Astronomical 14 14 28 89 8.9 89 17.8 0 0 / / 1 20 00 8.3 4 4 4 36.40.0 36.4 0.0 36.4 0 2 2 00 13.3 13.3
2-Aircraft 17 16 33 10.8 10.1 20.9 0 0 0.0 00 0.0 0.0 5 5 33.3 33.3
3-Light Phenom. 0 / 0.0 06 0.6 0 00 0 0.0
4-Birds / 1 2 0.6 0.6 1.2 0 0 00 00 / 9.1 0.0 0 0.0 0.0
5-Clouds, Dust, efc. 0 4 00 2.5 25 0 0 0.0 00 0.0 O 0 0.0
6-insuffic. info. 15 0 9.5 00 4 4 333 0.0 33.3 0 0.0 O 0 O Q.0 0.0
7-Psychological 4 0 2.5 00 2.5 0 0 0.0 00 0 0.0 00 0.0
8-Unknown 0 32 20.3 0.0 5 0 541.7 00 417 20 2 18.2 000 0.0 0.0
9-0ther 41 5 2.5 0.6 3/ 2 0 216.70.0 167 101 91 0.0 9.1 00 0 0.0 0.0 0.0
Total 116 42158 134 26.6 100 11 1 1291.783 100 10 111 40.99.1 100.8 7 15 53346.7100.
1950 195/ 1952
Number Number Per Cent Per Cent
Evaluation Certaun Doubthul Certain Doubtful Total Doubtful Certain Doubitful Total Doubtul
G-Balloon 2 1 3 167 83 25.0 2 O 286 0.0 286 15 3 18 14.9 3.0 17.9
1-Astronomical 0 2 0.0 16.7 8 0.0 286 28.6 10 7 9.9 69 16.8
2-Aircraft 3 0.0 25.0 O 0 0.0 00 141125 139 109 248
3-Light Phenom. 2 0 00 2.0 O 0 0.0 / 0.01.0 1.0
4-Birds 0 2 0.0 00 0.0 0 00 / 001.0 1.0
S-Clouds, Dust, efc. 2 0 0.0 0.000 0 00 0.000 4 4 004.0 4/0
6 insuffic Inko. / 0 1 83 0083 2 79 0019
7-Psychological 0 0 20 0.0.00 .0 000.00.0404 4.0 0.04.0
& Unkuno wn 3 0 25000 25.0 1 0 / 1430.014.3 21 02120.8 0.0 208
30ther e 00 0000 000 0 0 00000.0121.01.0 2.0
Total 932150250100 252 771.4286100 73 28 10112.327.7100.
190

TABLE A130 EVALVATION OF ALL SIGHTINGS EORALL YEARS
84 SHAPE OF OBJECT FLAME
All YeneS 1947 ) 1948 1949
Number Per Cent Per Cent
Evaluation Doubtful Doubtful Total Certain Doubtul Tota
0-Ballaon 3 3 6 17 34 / 1 33.3 0.0 0. 0 0 00
1-Astronomical 57 44 101 32.8 253 581 2 0 66.7 0.0 661 7 & 1/ 41.2 23.5 64 8 21 35 17.0 57.4 74.4
2-Aircraft 19 10 29 10.9 5.7 16.6 0 2 00 1 1 0.0 .59 5.9 4 5 85 2.1 106
3-Light Phenom. / / 0.6 0.00.6 0 00 0.0 O 2.0
4-Birds 11 200.6 0.6 00 o 0 0.0 0d 0.0
5-Clouds, Dust, etc. 0 00001 O 0 2.0 O 0.0 0.0 00
6 Insuffic. into. 3 03 1.70.01.7 0 0 0.0 00 0 00 0.0 2 2 4.3 02
7.Psychological 2 22 1.1 0.0 1.1 0 0 0 e0 0.0 0 00 o 0
&-Unkuno wn 180181030.010.3000000000 101 59 0.0 5.950 5 10.6 00
9-0ther 85 13462.9 7.5 0 0 0 000000 0 4 40.023523.5 00 0 00 2000
Total 1116317463.8362100 30 3 100d00 100. 8 9 17 47.152.9100 19 2847 40459.6100.
1950 1951 1952
Number Per Cent Number
Evaluation Certain Total Doubtful Doubtful Total Dou btful
0-Balloon 0 0 0.0 00 2 3 5 2.4 36 6.0
1-Astronomical 11 3 14 647 12.6 82.3 / 3 4 14.3 42.9 51.2 28 7 35 33.7 84 42.2
2-Aircraft 2 0.0 11.8 1 0 / 14.3 0.0 14.3 12 8 20 14.5 9.6 241
3-Light Phenom. 0 80 20 0.0 1 / 1.2 00 1.2
4-Birds 0 000000 Q 0 0.0 00 0.0 / 1.2
5-Clouds, Dust, etc. 0 0.0 0.00.0 20 0.0 00
6-Insuffic. Into. 0 0.00.00.0 20 0 0.0 00 1 1.2 0.0
7-Psychological 0 00.00.000 0 0000 0.0 0 2 00 2.4
&-Unknown 0 15.9 0.0 5.9 2 0 2 286 0.0 286 9 10.8 0.010.8
9-0ther 00 20.00.00.0 0 0 000 0.000 8 19 00 2 0.00.00.0 0 0 0000.000 8 1 9 7.41.210.8 9.6 1.2 10.8
Total 14 3 1782.417.61004 37 57.142.9100.6320 8375.924.1100
TABLE A131 EVALVATION OF ALL SIGHTING5 FOR PLL ALL SIGHTINGS FOR ALL YEARS
BY BY SHAPE OF OF OBJECT OTHER OTHER SHAPES
ALL YEARS 1947 7 1948 1949
Per Cent Number Number Per Cent
Evaluation Certain Doubttul Doubtful Total Doubtful Certain Boubtful Doubtful Total Dou btful Dou btful Total
0-Balloon 35 34 19 19 53 10.4 5.8 16.2 162 0 0 0.0 00 2 9.1 9.1 91 / 3 4 4 2.4 7.1 9.5
1-Astronomical 43 28 28 71 13.1 131 8.6 21.7 3 2 42.9 28.6 28.6 11.5 3 5 9.1 136 13.6 227 22.7 13 4 17 31.0 9.5 9.5 405
2-Aircraft 39 33 72 10.1 22.0 0 0 00 0.0 / 3 4 4.5 13.6 182 5 2 7 11.9 4.8 16.7
3-Light Phenom. 4 4 8 12 12 2.4 0 0 0.0 / 1 00 4.5 4.5 0.0
4-Birds 4 0.6 06 12 O 00 / 2 4.5 45 9.0 0 0 0.0
5-Clouds, Dust, etc. 4 3 7 1.2 09 2.1 0 0.0 O 0.0 00 00.00
6-Insuffic. Info. 25 7.6 1.6 0 00 00 4 4 0.0 18.2 5 11.9 119
7-Psychological 6 C 1.8 0.0 18 0 0 00
8-Unknown 66 20.2 0.0 20.2 0 28.6 2 2 9.1 00 9.18 19.0
9-0ther 87 15 2.4 2.1 4.5 0 20 00 00 2 2 2 00 9.1 91 / 0 1 24 00 24
Total 2396 32770.6 29.4 100.5 21 71.428.6 100.12 10 22 54.545.5100 33 9 4278.6 21.4 100.
1950 1951 1952
Number Per Cent Number
Evaluation Doubtful Total Certain Total Doubtful Certain
G-Balloon 7 2 9 167 48 2.5 3 0 3 136 0.0 13.6 21 14 35 109 7.3 18.2
1-Astronomical 7 95 7.1 6 3 4 4.5 13.6 181 20 13 33 10.4 4.8 17.2
2-Aircraft 8 5 13 19.0 11.9309 4 182 4.5 221 21 22 4/3 109 11.5 224
3-Light Phenom. 0 002020 0 00 4 3 7 21 16 37
4-Birds O 000 00.00 0 0 0.0 0.0 / 2 0.5 05 1.0
5-Clouds, Dust, etc. 2 0 000·00·00 0 00 0.0 0.0 4 3 7 21 16 3.7
6-insuffic into. 5.0 5 11.9 00 11.9 2 0 2 11 00 9.1 9 4.1 0.0 4.7
7-Psychological 20 0000 0 0 00 00 6 063100 31
&-Unknown 5 0 5 1.9 0.2 11.9 6 213 0.021343 0 4322400 224
9-0ther 03 300 7.1 71202 9.10.0915 2 7261.03.6
Total 29 13 4269031.0100 18 4 2281.8182100. 13458 19269.8302100.
191

-
-
TABLE A132 EVALVATION OF ALL SIGHTINGS EOR YEARS -
BY SHAPE OF OBJECT SHAPE NOT STATED
ALL YEARS 1947 7 1948 1949
Per Cent Number Per Cent
Evaluation Certain Doubthul Total Doubthul Doubtful Total Certain Doubtful Tota
0-Balliaon 38 40 78 48 5.1 99 / / 32 00 3.2 3 6 9.4 9.4 188 0 0.0 00 -
1-Astronomical 131 63 194 16.7 80 241 13 / 14 41.9 32 45.1 2 4 6 6.3 12.5 188 26 58 34.0 29.7 61.7
2-Atrcraft 75 58 133 16 7.4 17.0 1 2 3.2 6.4 0 4 12.5 0.0 7 15 7.4 8.5 15.9
3-Light Phenom. 4 0 9 1.100 1 2 00 2 6.3 6.3 0.0 0.0 -
4-Birds 1 7080.10.9 0 0 00 0.0 / 20 31
5-Clouds, Dust, etc. 5 o 506 000.6 0 0 a0 O 00 0.0
6-Insuffic. into. 109 010913.90.0 139 4 0 12.9 00 7 0 7 21.9 0.0 8 8 8.5
7-Psychological 2 2 40.3 0.3 06 1 / 3.2 00 32 0 0.0 0 0.0 -
8-Unkuno wm 191 0 191 24.40.0 244 6 0 6 18.4 00 194 6 18.8 188 6.4 6.4
5-0ther 43 11545.5 1.46.93 0 3 91 00 9700 0 00 0.0007077.400 7.4
Total 609 175784 7%722.3100. 29 231 93.56.5 100 24 8 3275025.0 100 60 34 94 63.836.2100. 1
1950 1951 1952 1
Per Cent Number
Evaluation Total Doubtful Certain Doubthul Doubthul Total Dou btful
0-Balloon 4 6 4.1 2.4 71 0 2 0.0 3.6 36 30 33 63 6.2 68 13.0
l-Astronomical 19 4 23 22.3 47 27.0 12 18 21.8 32.7 53 22 15 10.9 45 15.4
2-Aircraft 11 8 19 12.9 9.4 22.3 2 2 U 3.6 7.2 50 39 89 10.3 80 183
3-Light Phenom. 20 0.0 2 0 2 3.6 00 36 0 5 1.0
4-Birds 4-Birds 0 0100 00 00 20 0 O 0.0 606/20.01.2 6 0.0 1.2
5-Clouds, Dust, 5-Clouds, Dust, etc. etc. 0 00 0 2 0.0 0.0 0.0 00 5 0 51.0 0.0 10 5 1.0 10 1
6-Insuffic. Info. 9 9 10.6 10.6 4 0 7.3 1.3 0.0 0.0 7.3 77 0 7715.80.015.8 17 17 15.8 0.0 15.8
7-Psychological 0 00 0.0 1 / 0.0 1.8 0 2 20.00.404 2 0.4 04
8-Unknown 8-Unkunown 0 0 23 27.1 00 0 19 19 34.5 0.0 34.5 131 0 131 26.9 0.0 26.9 26.9 0.0 26.9
9-0ther 3 2 5 3.5 24 59 59 505 5 9.1 00 25 9 345.1 1.8 6.9 25 9 34 5.1 1.8 6.9 -
Total 69 168591.218.8100.4510 5581.818.2100.38210548778421.6100. 69 16 8591.218.8100.45 10 5581.818.2100.382105 48778.421.6100.
0
192

- U
Director
-
Maxwell AFB, Alabama ATTN: Archives Branch Aerospace Studies Inst May 1955
RETURN TO:
SPECIAL
ANALYSIS OF REPORTS OF BJECTS
PROJECT NO. 10073
5 MAY 1955 5 MAY 1955
1.Title l.Title
O
- SMC
No copyright material is contained in this publication.
1003287

several known objects or natural phenomena. 1
No reports identified as INs NSUFFICIENT INFORMA-
TION contain authenticated facts or impressions
concerning the sighting that would prevent its
category was assigned to a report when,
although
server had seen something, it was also
UNKNOWNS)and the UNKNOWNS.
tain' and "Doubtful".
12

TABLE A183 EVALVATION Of UNIT SIGHTINGS FOR ALL YEARS
BY SHAPE Of OBJECT ELLIPTICAL
Ac YEARS 194.7 1948 1949
Number Per Cent Number Per Cent
Evaluation Certan Doubtful Total Certain Certain Doubthul Certain Doubtful Total Tota
0 Balloon 127 89 216 10.7 7.5 18.2 5 0 5 2.6 00 96 1 8 15 101 11.6 21.7 4 2 6 36 18 5.4
1Astronomical 150122 212 12.6 10.3 22.9 9 4 13 17.3 77 250 12 15 27 17.4 217 391 9 43 52 80 38.4 464
2.Aircraft 13/2 118 260 11.9 99 21.8 / 2 1.9 19 3.8 6 0 87 0.087 5 12 62 45 107
3-Light Phenom. 16 15 31 1.3 1.3 2.6 2 3.8 00 0 3 00 4.3 43 0 00 0.0
- 4-Birds 8 4 12 0.7 2.3 1.0 2 0.0 00 0 / 14 1.4 2
2 1.8 00 18
5-Clouds, Dust, etc. 0 3 00 03 a3 0 0 2 00 0.0 0000 000 0 00 0.0
6-insuffic. info. 111 0 93 00 9.3 6 0 4 11.5 0.0 11.5 6 87 008719 019 17.0 0017.0
7-Psychological 15 8 23 1.3 07 2.0 2 4 3.8 38 1.6 10 114001.42 0 2 1.8 001.8
- 8-Unknown 220 0 185 00185 8 08154
00 15.4 707 10.100 10.116016 14.3 20143
9-0ther 34 8 42 290.7 3.612 0 12 23.100 28.1 2 13 2.91.4 4.3 3 0 3 2.7 00 27
Total 823367119069.230.8100.45 7 5286513.510041 2869 59440.6100.62 5011255.444.6100
--
1950 1951 1952
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total Total Doubtful Certain Doubtul Totai Dou btful Total
0-Balloon .0 12.7 1.3 4 / 5 10.8 2.7 135 97 77 174 11.5 92 207
0 1-Astronomical 10 4 14 127 5.1 17.8 8 2 10 216 54 21.0 102 54 156 12.1 6.4 185
2-Aircraft 11 2 13 139 2.5 16.4 4 / 5 10.8 2.7 135 113 109 222 134 13.0 26.4
3-Light Phenom. O 0 0 00 / 0.0 2.7 2.714 11 25 1.7 1.3 30
4-Birds 4-Birds 2.0 2 000 0.0.00210.0 272.7 00 0.0 1 / 0.0 27 27 6 2 8 2 8 01 0.2 09
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 2 0 00 0000 00 00000.000 3 3 20 a0l 0.0 0.000 0 3 3 00 00 0.4
5-Insuffic. Into. 6-Insuffic. Into. 15015 150 15 19000190 190 00190 40 40.8 001081 0 61 4 0 10.80.0 10.8 61 0 617.3 0.0 7.3 0.0 7.3
7-Psychological 2 0 20 2 2.5 202.5 2.52025 0100 2.7 2.7 8 5 13 0 00 2.7 27 8 5 131.00.6 1.6 1.0 06 116
8 Unknown 8-Unknown 20 220 253,00 25.310 010 21000 21.0159 01591890.0189 20 220 253,00 25.3 10 0 10 21000 21.0 159 0 1591890.0 189
9-0ther 2 2425 2550 0 0 000000.0 5 5 201.80.6 2.4 2 2 42525 50 0 0 0 00000.0 5 5 20 1.80.6 2.4
Total 70 97988611.4100.30 73781.1189100.575:26684168431.6100. 70 9 7988611.410030 73781.1189 100.57526684168431.6100
TABLE A134 EVALUATION OF UNIT S/GHTINGS EOR ALL YEARS
B4 SHAPE SHAPE OF OBJECT, OBJECT ROCKET ANO AIRCRAFT ROCKETANO AIRCRAET
ALl YEARS ALL YEARS 1947 1948 1948 1949
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubthul Certain Doubtful Total Certain Doubitful Total Doubtful Total
G-Bailoon G-Balloon 3 2 5 2.4 2.4 16 40 0 0 00 00 20 0.0 00 / 0 / 71
1-Astronomical 3 8 11 11 2.4 2.4 6.4 6.4 8.8 8.8 0 0 00 00 20 2 2 0.0 0.0 182 182/82 1 / 7.1
2-Aircraft 2/ 23 44 16.8 184 35.2 0 0 0.0 00 5 / 6 45.4 9.154.5 2 3 14.3 1.1 21.4
3-Light Phenom. 2 1 3 1.6 0.8 2.4 2 0 00 2.0 00 0.0 0000 0
4·Birds 0 0.0 O 0 2 0.0 00 0 0000 0.0 00 e0
, 5-Clouds, Dust, etc. 0 1 00 08 08
O 0.0 00·00 0 00 0000 00
6-insuffic. info. 0 10 8.0 00 80 0 0.0 0000 1 0 / 9.100 91 2 0 2 14.3 0.0 14.3
7-Psychological 56 00 5.6 0 0 0.0 0000 00 00 0010 / 71 0.071
& Unkno wn 37 0 37 29.6 0.0 29.6 6 0 100000 1000 10 1 4.1 00 9.1 6 0 6429 0.0429
9-0ther 6 1 7 4.8 08 5.6 0 0 0 00,0000 1 0 19.1 0.0 9.1 00 0000000
Total 89 3612511.2 28.800.6 26 1000 0.0 100. 8 3 11 72.727.3100. 12 2 14 85.714.3 100
1950 1951 1952
Per Cent Number Number Number Per Cent
Evaluation Doubtful Certain Doubtful Total Total Doubtful Certain
GBalloon / 0 11.1 0.0 11.0 / 00 5.3 5.3 / 2 1.5 3.0
1-Astronomical / 2 3 1.1 222 333 0 0 0.0 00 2 3 5 3.0 4.5 7.5
2.Aircraft 2 0 0 0.0 0.0 5 4 9 26.3 21.1 474 17 26 13.6 25.8 39.4
3-Light Phenom. 0 00 0.0 0 0.0 00 72 / 3 3.0 1.5 4.5
4-Birds 0 00 0.0 0 00 0.0 O 0.0000.0
5-Clouds, Dust, etc. 2 0 0.0 00 0 00 / 100 15 1.5
6-insuffic into. / 0 1 111 11/ 2 10.5 00 4 0 4610.0 6.1
7-Psychological 0 00 0.0 0 0.0 00 6 0 6 9.1 00 9.1
& Unkno wn 3 0 3 333 0.0 333 6 0 31.6 00 3/.6 150 1522.70.0 22.7
3-0ther 0 11100 11.1 0 / 5.3 0.0 5.3 3 1 4 451.54.0
Total 1 2 9718 22.2100 14 5 19 13726.310042 24 66 63.636.4 100.
193

I
1
TABLE A135 EVBLUATION OE UNIT SIGHTINGS FOR ALLYEARS
84 SHACE OF CRJECT. METECE OR COMET -
Aul YERRS 1947 1948 1949
Number Per Cent Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Total Total Certain Total Certan Doubtful Certain Doubtful Total Total Doubtul
0-Balloon 2 0 26 0.0 2.6 0.0 0.0 0
1 Astronomical -1 21 62 539 27.6 815 4 4 8 40.0 800 5 6 143 71.4 85.7
2.Aircraft 2 4 2.6 26 5.2 0 0.0 00 O
3-Light Phenom. 6 0.0 0.0
0 1 0.0 1.3 0 0.0 0 0.0
4-Birds 2 / / 0.0 1.3 N 0 00 0.0 0 1 / 14314.3
5-Clouds, Dust, etc. 0 0.0 d 0 0.0 00 0 0.0
5 Insuffic. into. 2 1 1.3 0.0 0 0.0 00 0 0.0
7.Psychological 0 0 2.0 0.000 0.0 00 0 0.0 0.000
8 Unknown 5 0 5 66 0066 2 0 2 20.00.0 20.0 0.0 00.00 1
9.0ther 0 00000.0 2 0 000.000002 00 0.0·0.0
Total 51 257667132.9100. 641060040.0100167143857100
1
1950 1951 1952
Number Per Cent Per Cent Number Per Cent 1
Evaluation Certain Doubtful Total Doubthul Doubtful Total Certain Doubthul Total Doubttul Certain Doubtful
0-Bailoon 0 / 00 500 0.0 00 / 1.8 0.0 1.8
1-Astronomical / 0 1 50.0 0.0 50.0 / 2 500 50.0 100.0 34 11 45 61.8 200 81.8
2-Aircraft 0 00 0.0 0.0 2 O 4 36 7.2
3-Light Phenom. 0 0 0.0 0.0 00 2 0 2 / 1 0.0 1.8
4-Birds 2 O 2 0.0 0.0 O 0 00 00 0 0.0
S-Clouds, Dust, etc. 0 2 0.0 00 O 0 0.0 0 0o
6-insuffic. Info. 0 0.0 2 0 Q 0.0 00 1 0 11.8 1.8 1
7-Psychological 0 0 o0 0.0 00 0 000.0 00
B-Unknown 2.02 0.0 0000 00 0.0 354 00 5.4
9-0 ther 0 0 000 0.0 0.0 0 0 0 00 00,0.00 0000 000.0
/
Total 2 0 2100.00.0100.11250.050.0100.411455145255100
TABLE A136 EVALVATION OF UNIT SIGHTINGS FOR ALL YEARS EVALVATION OE UNIT SIGHTINGS FOR ALL YEARS
BY SHAPE BY SHAPE OFOBJECT LENTIEVLAR, CONICAL OR TEAROROP 1 |
LENTIEULAR, CONICAL OR TEAROROP
Ac YEARS 1947 1948 1949
Number Per Cent Per Cent Number Per Cent Number Per Cent
Evaluation Evaluation Certain Doubtful Total Certain Total Doubtful Total Doubthul Certain Dou biful
G-Balloon 26 4 30 190 29 21.9 0 0 0.0 00 2 2 0 26.0 00 25.0 0 5 5 55.6 556 556 |
1-Astronomical 00
13 26 95 9.5 19.0 0 O / / 0.0 16.7 16.7 IL 3 0 0 3 37.5 375 0.0 31.5 31.5 2 2 00 20 22.2 22.2
2-Aircraft 13 29 11.7 9.5 2/.2 O 0 0.0 00 0 O.0 2 0.0 22.2 222
3-Light Phenom. 0 1 00 07 0.1 0.0 O 0 20 00 0 0.0
4-Birds / 2 07 0.7 14 0 0.0 00 / 12.5 0 2 0.0
5-Clouds, Dust, etc. 0 2 00 1515 0 0.0 00 0 02 0.0 O
6-Insuffic. info. 13 0 13 9.5 0.0 9.5 2 0 33.3 0.0 333 0 0.0 00 0.0 00
7-Psychological 4 0 4 2900 2.90 0 0.0 00 0 20 0.0 0.0
B-Unknown 26 0 19000 19020 2 33.3 0.0 333 / 12.5 00 0 0 0.0 00
9-0ther 3 / 4 22 0.7 2.9 0 1 16.7 00 167 10112500 12500 Le 0.0 0.0
Total 102 3513214.5255100 516 833/.7 100. 8 0 8 10000.0 100 5 4 955.6 44/400.
1950 1951 1952
Number Per Cent Number Per Cent Per Cent
Evaluation Doubtful Total Certain Doubtful Certain Totai Total Certain Doubtful Total
0-Balloon 2 3 18.2 273 0 2 33.3 0.0 15 3 18 155 31 186
1-Astronomical 0 2 2 0.0 182 18.2 0 / / 16.7 10 1 17 10.3 7.2 17.5
2.Aircraft 3 0 273 0.0 21.3 0 0.0 00 13 1/ 24 13.4 11.3 24.7
3-Light Phenom. 0 0 2 00 0.0 / 0.0 1.0
4·Birds 0 0.0 00 2 0 0.0 00 1 20 1.01.0
5-Clouds, Dust, etc. 2 00 0.0 0 0.0 00 0 2 0.0 2.1 2.1
6insuffic into. 10 91 0.0 911 2 33.3 0.0 33.3 8 0 8 82 0.0
7-Psycho lo g cal 0 0.0 000.0 20 00 0 4 4.1 0.0 41
8-Unknown 2 0 182 0.01821 0 1/4.7 0.016.7 0 20 20.6 0.0206
30ther 00020 0.00.00000.0 0000 11/1.01.0 2.0
Total 8311 72.727.3100.51683.316.7 10071 2647 73.2 26.8 100
194

TABLE A137 EVALVATION OE UNIT SIGHTINGS EOR ACL YEARS
BY SHAPG Of OBJECT FLAME
AcL YEARS 1947 1948 1949
Per Cent Number
Evaluation Certain Doubtful Total Doubtful Total
0.Balloon 3 6 2.2 44 0 / 500 0.0 50.0 00 O 0 0.0
1-Astronomical 46 24 70 33.8 17.6 57.4 1 0 500 0.0 50.0 3 10 188 62.6 2 12 105 52.6 63.1
2-Aircraft 17 10 27 12.5 7.4 19.9 0 0 00 0.0 00 o 1 / 6.3 6.3 2 3 10.5 5.3 15.8
3-Light Phenom. / 0 07 07 0 O 0.0 0.0
4-Birds / 0.7 07 o 0 0 O 0.0 Q 00
5-Clouds, Dust, etc. 0000 0 0.0 00 Q 0 0.0
6-Insuffic. nfo. 3 2.2 0 0.0 00 00 0 0.0 2 2 10.5 10.5
7-Psychological 2 2 1.5 0.01.5 0 e 0.0 0.0 0
8-Unkno wn 15 0 11.0 0.011.0 00 0 / 0.0 6.3 2 2 10.5
9-0ther 65 11 4.4 3.7 8.10 0 0 0.0 0.00.0 0 4 25.0 00 Q 0.0
Total 934313668431.6100. 2 0210000.0400. 8 8 16 50.050.0100. 0.81119 42.157.9100.
1950 1951 1952
Number Per Cent Number
Evaluation Certain Doubtful Total Dou btful
0-Balloon 0 0 0.0 0.0 2 3 5 2.5 3.8 6.3
1-Astronomical 9 3 12 600 20.0 80.0 1 2 200 40.0 26 1 33 32.9 8.9 41.8
2-Aircraft 0 2 13.3 13.3 O / 20.d 0.0 20.0 12 8 20 15.2 10.1 25.3
3-Light Phenom. 0 0.0 O 0.0 / 1.3
4-Birds 0 2 0.0 00 O 0 / 1.3
5-Clouds, Dust, etc. e 0 0.0 D 00.0000.0 0 00 Q 0 0.0
6-Insuffic. Info. 0 0 0.0 000.0 00 0.0 / 0 1 1.3 1.3
7-Psychological 7-Psychotogical 0 0.0 00 00 0 0 0.0000.0 0.0 20 2 2.5 2.5
8-Unkno wn 0 16.7 1 00 6.7 2 0 2 40.00.040.0 2 0 2 40.0 0.0 9 11.4
9-0ther 9-0ther 2000.00.000 200 0.0 0.0·00 00 0 00 0.0 00 41 00000 0.00041 7 7.6 1.3 8.9
Total 123 15800200100. 12 3 15800200100. 41580020.0100 .4 1 5 80020.0100.59 20 1974725.3 100. 0.5920 1974725.3100
TABLE A138 EVALUATION OF UNIT5IGHTINGS UNIT SIGHTINGS FOR ALL YEARS
I 84 SHAPE OF OBJECT OTHER SHAPES
ALL YEARS 1947 1947 7 1948 1949 1949
Number Number Per Cent Per Cent
Evaluation Certain Doubtful Doubtful Total Doub tful Certain Dou btful Total
I 0-Balloon 32 15 47 12.0 5.6 17.6 176 0.0 0.0 2 0 0 13.3 / / 2 38 7.6
1-Astronomical 29 2/ 50 50 10.9 80 8.0 18.9 18.9 2 2 3 20.0 40.0 40.0 600 600 / / 0 00 6.7 6.7 6 3 9 23.1 23.1 11.5 34.1 34.1
2-Aircraft 31 29 29 60 t0 11.7 11.7 109 10.9 22.6 22.6 0 2 0.0 0.0 / 2 3 6.7 1.1 13.3 133 20.0 20.0 5 11.5 11.5 7.7 7.7 192 192
3-Light Phenom. 4 3 7 1.5 11 2.6 0. 0 O 00 0.0 0 0 00 0.0
4-Birds 2 4 0.8 0.8 1.6 0.0 0. 0 1 / 2 67 6.7 134 0 0.0
0 5-Clouds. Dust, etc. 1 / 2 0.4 0.4 08 0.0 ao 0 00 0 00
6-Insuffic. into. 0 21 80 0.0 00 00 0 3 20.0 200 4 15.4
7-Psychological 6 0.0 2.3 00 0 0.0 0 0.2
&-Unknown 55 0 20.1 00 207 2 0 40.00.040.0 2 13.3 0.0 13.3 5 192 0.0 19.2
9-0ther 8 6 14 30 2.3 5.3 2 00 000.00.0 021 2.0 13.3 01 380.0 3.8
Total 189 77266 71.128.9 100 3 2 5 60.0 40.0100. 10 5 15 66.7 33.3 100.20 6 26 76.923.1100.
1950 195/ 1952
Number Per Cent Number Per Cent
Evaluation Doubtful Totai Total Certain
0-Balloon 6 1 182 30 2/.2 0 3 14.3 0.0 14.3 20 13 33 12.0 7.8 19.8
1-Astronomical 3 6 9.1 2.1 18.2 / 4 4.8 14.3 19.1 17 10 27 10.2 6.0 162
2-Aircraft 7 3 10 21.2 9.1 30.3 / 5 19.0 4.8 23.8 16 21 37 96 12.7 22.3
3-Light Phenom. 0 0.0 0 0.0 4 3 7 2.4 1.8 42
4-Birds 0 0 0.0 0.0 00 1 2 0.6 12
5-Clouds, Dust, etc. 0 0.0 2.0 00 O 1 / 2 0.6 0.1 1.2
6-insuffic info. 0 3 91 0.0 9.1 0 2 9.5 0.09.5 9 9 54 00 5.4
7-Psychological 0 00 0.0·00 6 3.6 0.0 36
&-Uniknown 5 15.2 20 /5.2 0 5 238 0.023.8 36 36 00 21.7
9-0ther 0 2 0.0 6.1 k.1 2 02 950.0955 2 7 3.0 1.2 42
Total 249 33 72.727.310017 4 2181.0 19.0100. 115 51166 69.330.7100.
195

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1
TABLE A139 EVALUATION Of UNITSIGHTINGSEOR ALL YEARS
By SHAPE OF OBJECT SHAPE NOT STATED -
ALL YeARS 1947 1948 1949
Per Cent Number Per Cent
Evaluation Total Certain Doubtful Doubtful Certain Total
0-Balloon 35 38 73 5.6 61 11.7 / 38 0.0 3.8 3 2 5 12.5 8.3 20.8 0 0 0.0 -
1-Astronomical 101 47 148 16.2 1.5 237 8 / 9 30.8 3.8 34.6 3 4 4.2 12.5 16.7 16 32 321 32.7 65.4
2-Aircraft 63 40 103 6.4 16.5 2 38 38 7.6 3 0 3 12.5 00 12.5 1 5 82 2.0 10.2
3-Light Phenom, 9 0 9 14 00 1.4 2.0 2 8.3 0.0 83 0 00
4-Birds 21 3 03 02 05 0 00 / / 0.0 4.2 0 -
S-Clouds, Dust, etc. 2 0 2 0.3 03 00 0 ad 0 0.0 a0
6-Insuffic. Into. 102 eloe 16.3 /63 4 00 15.4 7 7 0.0 29.2 0 6 12.2 12.2
7-Psycho logical 2 1 3 0.3 02 0.5 / 3.8 od 000d0 0 0.0 00
8-Unkno wn 139 0139 22300 22.3 6 23100 23./ 20 283 008340 4 82 0.0 8.2 -
9-0ther 35 7 425.6 1.1 .73 0 3 1.5 0.0 1.5 00 0 000.0 0.0 2 0 2 41 00 4.
Total 490 134 624 18521.5100 24 226 92.3 7.7 100. 18 6 24 75.025.0 3 32174965.3347V00
1
1950 1251 1952 1
Per Cent Number
Evaluation Total Certain Doubtful Doubthul Doubtul Total Certain
0-Balloon 2 4 3.3 6.6 0 / 0.0 2.1 29 33 62 6.9 79 14.8
1-Astronomical 18 4 22 30.0 6.7 36.7 10 6 16 21.2 12.8 34.0 48 17 65 11.5 4.1 15.6 |
2-Aircraft 7 6 13 11.7 10.0 21.7 2 4.3 4.3 86 46 30 16 11.0 7.2 18.2
3-Light Phenom. 0 00 0.0 2 0 2 4.3 0.0 5 00 1.2
4-Birds PbirOS 100010000 00 0 0.0 020.50005 0 2 0.5
5-Clouds, Dust, etc. 0 0 2 2.0000000 00.00.00.0 2 0 20.5 000s 0.0 0 o.0 2 0.5 as
6-Insuffic. Info. 6 0 6 10.0 00100 4 0 4 8.5,0.0 85 75 075 17.9 0017.9 6 10.0 00100 4 0 4 8.5 0.0 85 75 75 17.9 00 179 |
7.Psychological 7-Psychological 002 0.00000 1 012.10.0·2.1 0 02 0.00000 / / 2.1 0.0 0110.0020.2 0.0·020.2
8-Unknown 11 0111830.018314 11 0 11 18.3 0.0 183 14 0 14 29.8 0.0 29.8 102 0102 2440.0 24.4 014 29.8 0.0 29.81020/02 244 0.0 24.4
9-0ther 3 1 4 5.0 1.7 6.7 5 0 5 10.6 00 10.6 22 6 28 5.3 1.4 6.7 3 1 4 5.0 1.7 6.7 5 0  10.6 00 10.6 22 6 28 5.3 1.4 6.7
Total 47 13 60 78.3 21.7 100. 38 9 47 80.9 19.1 100 331 87 41879.220.8 100. 4713 60 78.3 21.7 100. 38 947 80.9 19.1100 331 8741879.220.8100.
.
196

TABLE AI4O EVALVATION OF OBJECT SIGHTINGS FOR ALL YEARS
BY SHAPE OF OBJECT ELLIPTICAL
ALL YEARS 1947 1948 1949
Number Per Cent Per Cent
Evaluation Doubtful Total Doubtful Doubtui Total Certain Doubtful Total
0-Balloon 113 83 196 10.9 80 189 0 0.0 11.9 6 8 19 95 12.7 22.2 4 / 5 48 6.0
1-Astronomical 115 91 206 11.1 88 19.9 3 4 7 7.1 9.5 16.6 11 22 17.5 17.5 349 8 26 34 31.0 40.5
2-Aircraft 30 108 238 12.6 10.5 23./ / 2 2.4 48 6 0 6 9.5 00 7 5 12 8.3 6.0 14.3
3-Light Phenom. 16 30 1.5 14 29 2 480.0 3 00 48 4.8 0 0.0 00
4-Birds 07 04 1.1 0 0 00 1 1 1.6 2 2.4 0.0 24
5 Clouds, Dust, etc. 0 33 030.3 e 0 0000000 2 00 o.d a0 0.0 0.1 0.0
6 Insuffic. info. 96 0 96 9.3 0.093 0 6/4.3 004.3 0 6 9.5 0.0 95 14 16.7 0.0
7.Psychological 14 8 22 1.4 08 2.2 2 44.84.8 9.61 / 1.6 0.01.6 20 2 2.4 0024
& Unknown 195 0 195189 0.0189 8 0 819.000 190 70 7 11.1 0041.1120 12 143 0.014.3
90ther 30 6 362.90.6 35 8 0 890 00 180 2 1 3 3.2 1.6 4.8 3 0 3 36 00 36
Total 716 317 103369.330.7 100. 357 42 83.316.7 V00. 39 2463 61.9 38.1 100. 52 32 84 61.9 38.1100.
1950 1951 1952
Number Per Cent Per Cent
Evaluation Certain Doubtul Total Doubtful Doubtful Total Doubtful Total Certain
0-Balloon 10 / 11 14.3 1.4 15.7 3 4 10.7 3.6 143 85 72 157 11.4 9.7 21.1
1-Astronomical 9 3 12 12.9 4.3 17.2 3 2 5 10.7 7.1 17.8 81 45 126 10.9 6.0 16.9
2-Aircraft 8 2 10 11.4 29 14.3 3 0 3 10.7 0.0 10.7 105 100 205 14.1 13.4 21.5
3-Light Phenom. 2 0.0 e.0 0.0 0 / 00 3.6 36 14 10 24 19 1.3 3.2
4-Birds 4-Birds 0 0101000000 0.0 000.0 2 0 1003636527070.3/.0 / 36 36 5 2 7 0.7 0.3 1.0
S-Clouds, Dust, etc. 0 00000000 000 0000000 0 0000 00 03300 0.40.4 00 0.000 03 300 0.404
6-Insuffic. Info. 13 0 13 18.6 0.018.6 4 0 4 14.30.0 14.3 53 0 537.1 0.0 7.1 130 1318.6 0.0 18.6 4 0 14.3 0.0 14.3 53 0 537.10.0 7.1
7-Psychological 2 0 2 2.9 00 29 0 1 10.0 2 2.900 2.90 / 0.0 3.6 36 7 5 120.9 07 1.6 3.6 36 7 5 12 0.9 07 1.6
8-Unknown 19 0 19 27.100 27.1 90 932.1 0.032.1140 0140 18.80.018.8 0 192710027.190 932.1 0.032.1140 0 140 18.80.018.8
9-0ther 21 2 3 2.9 1.4 4.300 0 0.0 0.0 0.0 154 19 2.0 0.5 2.5 3 2.91.4 4.300 00.00.00.0 15 4 192.00.5 2.5
Total 63772 90.0100100.22 62878621.4100.50524174667.732.3100. 63772900100100.22 62878621.4100. 505241 74667.732.3100.
TABLE A141 EVALVATION OE CBJECT S/GHTINGS FOR ALL YEARS S/GHTINGS FOR ALL YEARS
BY SHAPE OF OBJECT, BY SHAPE OF OBJECT ROCKET ANO AIRCRAFT AIRCRAET
ALL YEARS 1947 194.8 1949
Number Number Per Cent
Evaluation Certain Doubthul Total Doubtful Doubtful Doubtful Total Dou btful
0-Balloon 3 4 2.7 2.7 09 3.5 0 0. 0 00 00 0.0 0.0 / / 27 27 0.0 17
1-Astronomical 6 8 18 5.3 53 7.1 0 00 2 0.0 18.2 182 / 0.0 0.0 7.7 7.7 17 17
2-Aircraft 20 40 1o 12.7 117 35.4 0 0.0 0.0 5 6 1 45.5 91 54.6 2 / 3 15.4 1.7 23.1
3-Light Phenom. 2 / 3 18 09 2.7 o 0.0 0 0 O 00 0.0
4-Birds 0 2.0 0.000 0 0.0 0.0 00 00 O
5-Clouds, Dust, etc. 0 1 / 0909 00 0.0·00 O 0 0.0 0.0 20
6-Insutfic. Info. 10 0 10 88 0088 0 0.0 0.0 / 9.1 00 91 2 15.4 15.4
7-Psychological 7 6.2 00 6.2 0 0 0.0 20 00 00001 / 7.7 0.0
8-Unknown 33 29.20.0 292 5 5 voad 0.0 V0a0 / 9100 915 0 38.5 00
9-0ther 6 / 7 53 0962 0 0 00 00 0 19.1 00 91 000 0.0
Total 83 30 113 18526.5100. 5 0 5 100.0 0.0 100. 8 3 11 72.727.3100. 11 2 13 84.6 15.4 100.
1950 1951 1952
Per Cent Per Cent Number
Evaluation Doubtful Certain Total Doubtul Totai Certain
0-Balloon / 0 0.0 12.5 0 / 00 6.3 17 1.7
1-Astronomical 0 2 25.0 250 0 0.0 0.0 2 / 3 3.3 1.7 5.0
2.Aircraft 0 0.0 0.0 5 3 31.3 18.8 50.0 8 15 23 13.3 25.0 38.3
3-Light Phenom. 0 00 0 0.0 0.0 2 / 3 3.3 1.7 5.0
4-Birds 0 0.00.000 00 O 0 0.0
5-Clouds, Dust, etc. 2 0 e 000000 0.0 0.0 0.0 1 00 1.7
6 insuffic into. 1 / 12.5 0.042.5 2 0 2 125 0.0 12.5 O 4 6.7 0.0 6.7
7-Psychological 0 0 00000.00000 0.00.0 ee 6 6 10.0 0.010.0
& Unknown 3 0 3 315 0.0.37.54 O 425.0 0.0 25.015 0 15 25.0 0.0 25.0
9-0ther 1 0 112.50012.5 014.3 0.0 6.3 3 1 4 5.01.7 6.7
Total 6 28 75.025.0100. 12416 75025.0100.41196068331.7100
197

-
-
TABLE AI42 EVALVATION Of OBJECT SIGHTINGS FOR ALL YEARS
BY SHAPE OF ORJECT METEOR OR COMET
All YEARS 1947 194.8 1949
Number Per Cent
Evaluation Total Certain Doubtful Doubtful Total Certain Doubthul Total Certan Doubtful Total
0 Balloon 2 34 0.0 3.4 0 00 0 20 -
1-Astronomical 28 18 46 47.5 30.5 78.0 4 4 8 40.0 80.0 1 3 20.0 600 80.0
2-Aircraft 2 L 34 6.8 0.0 00 0 0.0
3-Light Phenom. / 1.7 0 20 0.0 0.0 00
4-Birds 2 00 17 1.7 E 0 0.0 00 0 / 1 0.0 20.0 -
S-Clouds, Dust, etc. 0 0.0 0.00.0 N 0 00
6-Insuffic Into. 1 0 / 1.1 0.01.7 0.00.00.00 0 0.0 00 0.0
7-Psychological 0 00 0.000 0 00.0.0000 0.0
8-Unknown 4 4 6.8 00 6.8 N 2 0 20.00.020.00 0.0 00 -
9-0ther 0 0.0 0000 0 20.00.000000 0.0 00
Total 37 22 59 62.737.3100. 6 4 1060.040010014520.080.0400
-
1950 1951 1952
Number Per Cent Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total Dau btful
0-Balloon / 100d 00 100.0 0 0.0 0.0 0 1 24 2.4
1-Astronomical 0 0.0 00 / 2 50.0 100.0 22 10 32 537 24.4 78.1
2-Aircraft 0.0 0 0 2 4 4.9 98
3-Light Phenom. 2 0 0.0 0 0 0d0.0 00 01 / 2.4 2.4
4-Birds 4-Birds 0 2 2 00021001 0.0 00 0.0 Q 010.00.010.0010 0.d0.0 e 102.0 0 Q.01ao ao
5-Clouds, Dust, etc. 0 O 0.0 0.00.00.0 0.00.000 0 2 0.0 00 00
6-Insuffic. into. 6-Insuffic. Into. 0 0.000.00 0000 0 0 200.00.010 000.00.01 / 00 0.0 2.4
7-Psychological 0 0.00.0 0.0 20 0.00.00.00 00 0.00.00.0 0
8-Unknown 0 0 0000 0.0 0.0 0.00.0 02 2 0 0.00.00.0 2 0 2 4.9 0.00.00.02 0 2 4.9 0.0 4.9
9-0ther 0 0 20 00 00000 000.0 0.00000d000.0 2000 00 22 0000.0 00000 0d0000
Total / 1 0 / 100.00.0100. 11 250.050.0100.28 13 4/ 68331.7100. 0100.00.0100.1250.050.0400.28134/68331.7100
TABLE A143 A143 EXALVATION EVALVATION Of OF OBJECTSIGHTINGS FOR OBJECT SIGHTINGS FOR ALL YEARS
84 SHAPE OF OBJECT LENTICULAR CONICAL OR TEARDROP
ALL YEARS 1947 194.8 194.8 1949 1949
Number Per Cent Num ber
Evaluation Certain Doubtul Certain Doubthul Total Doubtful Doubtful Dou btful Total
0-Balloon 24 3 3 27 19.2 2.4 2.4 21.6 0 0 00 0.0 / / 16.7 0.0 C 5 55.6 55.6
I-Astronomical 12 12 24 9.6 19.2 0 1 / 16.7 O 333 0.0 33.3 0 2 0.0 22.2 22. 2 222 22.2
2-Aircraft 2-Airceaft 14 13 13 27 21 11.2 10.4 21.6 0 O 0.0 0 D A 2 00 22.2 A0 22.2
3-Light Phenom. 0 0.0 0.00.0 0 00 0.0
4-Birds 2 08 0.81.6 / 16.7 0.0 16 0 0.0
5-Clouds, Dust, etc. 0 2 20 1.6 1.4 0 0.0 0.0 0
6-Insuffic. into. 13 10.4 0.0104 2 0 2 0.0 33.3 2.0 0.00.0 0 D 20
7-Psychological 4 4 3.20.0 3.2 0.0 0 0 0.00.00 0 0.0
&-Unknown 22 0 11.6 0.0 17.6 2 0 2 33.3 0.0 0 / 1670.0 16.7000 00 0.0
9-0ther 3 / 4 2.4 0.8 32 1 0 1 16.70.016.7101 16.7.0.016700020 00
Total 933212514.425.6100. 5 1 6 53316.7100 6 0 6100.00.0 100. 5 4 9 556444100.
1950 1951 1952
Number Per Cent Number Per Cent
Evaluation Certain Total Certain Doubtful Doubtful Total
0-Balloon / 143 14.3 286 0 2 0.0 333 15 17 16.5 2.2 18.7
1-Astronomical 0 2 2 0.0 286 28.6 0 / 00 16.7 167 10 6 16 11.0 66 17.6
2-Aircraft / 2 / 14/.3 0.0 0 00 13 11 24 14.3 12.1 26.4
3-Light Phenom. 0 e 0.0 0.0 0
4-Birds 0 00 0 02 0.0 1.1 1.1
5-Clouds, Dust, etc. 0 0 0.0 00 2 2.2
6-Insuffic. into. 0 / 14.3 0.0 14.3 2 0 2 33.3 0.0 333 8 8.8
7-Psychological 0 0.00.0 04 0.0 4.4
&-Unknowm 0114.3 0.043 0 1 16.1 0.016.717 0 17 181 0.0 18.7
9-0ther 20.0 000.00000.0 0.00.00.0111 1.1 1.1 2.2
Total 4 3 7 57.142.9 100. 5 1 6 83.316.7100. 68 23 91 74.725.3 100.
198

TABLE A144 EVALUATION OF OBJECTSIGHTINGS FOR ALL YEARS
BY SHAPE OE OBJECT ELAME
ALl YEARS 1947 1948 1949
Number Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total Total
O-Balloon 2 3 5 1.9 28 4 1 100.0 0.0 0 0 00 0.0
1-Astronomical 32 17 49 30.2 16.0 44.2 0 0.0 0.0 20 1 3 43.8 18.8 624 2 8 10 13.3 53.3 66.7
2-Aircraft 16 8 24 15./ 7.5 22.6 0 0 0.0 0.0 1 6.3 2 / 3 13.3 6.7 20.0
3-Light Phenom. / 0 09 00 0.9 0.0 0 0.0 00
4-Birds / 1 0.9 09 0 00 2 0.0
5-Clouds, Dust, etc. 0 20 0.000 0.0 0.00.00.0
6-Insuffic. info. 3 0 3 2.8 0.02.8 0.0 0.0 10 000.000 0 2 13.3 00
7-Psychologi cal 2 0.0 00 000.00000 0 00 0.0
&-Unknown 10 010 8.40.0 9.4000 0.0 0010 1 6.3 006.300 0 00
9-0ther 6 5 11 5747104 0 0 0200.0 0.0 0 4 4 0.025.025.d 00 000 0.00.0
Total 723410667.932.11001 0  V00.00.0 100. 88 16 50.050.0100. 6 9 1540.060.0100.1
1950 1951 1952
Per Cent Number Per Cent Num ber
Evaluation Certain Doubthul Total Doubtful Doubttul Dou btful
O-Balloon 0 0.0 0 0.0 / 3 4 1.6 4.8 64
1-Astronomical 4 1 5 500 12.5 415 / 2 25.0 50.0 18 22 29.0 6.5 35.5
2-Aircraft 0 2 25.0 0.0 25.0 1 o / /1 6 17 17.7 9.7 274
3-Light Phenom. 0 00 2 0.0 0 / 1.6 0.0
4-Birds 0 0 0.0 100 2 0.0 / / 1.6
5-Clouds, Dust, etc. 000.0.00.0.0.000 0 0.0.0.0 0 000.00.0000 00 0.0 0 0.0 0.00.0
6-Insuffic. Info. 00 00.00.0·00 0 20 0.00.0 0.02 0 000.00.01 01 00000.01 01 1.6 0.0 1.6
7-Psychological 7-Psychological 2.02 0.0 00 0020 00 00.0 00000 0 0 0.0 0.00.02. 0.00.00.0 2 0 2 0 2 3.2 00 32 3.2
&-Unknown 1 0 1 12.50.0 12.51 0 1 10 /12.50.0 12.510 / 25.00.0 25.0 7 0 711.3 25.00.0 25.0 7 0711.3 0.011.3 0.0 11.3
9-0ther 2.00 00 00.2.0 00 0 0.0200 00.2.0000 0.0000.0 4 17 9.7 1.6 11.3
Total 7 1881512.5 100. 31475025.0100.47 156275.824.2100. 7 1881512.5100. 31 475025.0100.47156275.824.2100
TABLE A145 EVALVATION OF QF OBJECT SIGHTINGS FOR ALL YEARS EOR ALL YEARS
8Y BY SHAPE OF OF OBJECT OTHER SHAPES
ALL YEneS 1947 1947 1948 1948 1949 1949
Number Number Per Cent Per Cent Num ber
Evaluation Evaluation Certain Certain Doubtful Doubthul Doubthul Total Dou btful Total
0-Balloon G-Balloon 32 14 46 13.0 13.0 5.7 57 187 0 0 0.0 0.0 2 13.3 13.3 / 1 2 4.1 41 8.2
1-Astronomical 23 19 42 42 9.3 7.7 17.0 2 3 20.0 40.0 60.0 / 0 o / 4.7 6.7 0.0 6.7 60 lo 8 8 25.0 25.0 83 33.3
2-Aircraft 2-Aircraft 28 28 27 55 56 11.3 11.3 10.9 09 22.2 222 D D 0 0.0 0.0 20 / 1 3 6.7 47 13.3 12.3 20.0 ? 2 5 12.5 19.5 8.3 82 20.8 208
3-Light Phenom. 3 2 5 1.2 08 2.0 0 0.0 20 00 O 0 0.0
4-Birds 4 08 1.6 0 0.0 0.0 / 2 6.7 13.4 O 0
5-Clouds, Dust, etc. 1204 0.408 0 0.0 0.0 0 0.000
6-insuffic. info. 19 0 19 77 00 7.7 0 0 0.0 3 20.0 0.0 200 3 12.5
7-Psychological 062400 2.4 0 0 20 0.0 0.00.0
&-Unknown 54 0 54 21.9 0.0 21.9 2 40.0 2 13.3 0.0 5 0 5 20.8 0.020.8
9-0ther 8 6 14 32 2.4 56 00 0 0.0 0.000 02 2 00 13.3 13.3 101 4.1·00 41
Total 176 71 247 71.3 28.7 100 32. 5 60040.0 100. 10 5 15 667 33.3100. 19 5 24 79.2 20.8 100.
1950 1951 1952
Number Per Cent Number
Evaluation Doubtful Certain Certain Total Doubtful
D-Balloon 6 1 7 20.7 3.4 24.1 0 3 14.3 0.0 14.3 20 12 32 13.1 7.8 20.9
1-Astronomical 3 6 10.3 103 206 / 4 4.8 14.3 19.1 11 9 20 7.2 5.9 131
2-Aircraft 2 6 13.8 6.9 20.7 4 / 5 19.0 4.8 23.8 16 20 36 10.5 13.1 23.6
3-Light Phenom. 0.00.0 0.0 0 0.00.00.0 3 2 5 2.0 1.3 3.3
4-Birds 0 2 0 0.00.00.0 000.00.0 / 2 0.7 14
S-Clouds, Dust, etc. 0 O 0.00.00.0 / 2 07 01 14
6-Insuffic. into. 3 0 3 10.3 0.0 10.3 2 25 0.0 9.5 8 8 0.0 5.2
7-Psychological 0 0.00.00.0 0 0.00.00.06 6 0.0 3.9
&-Unknown 5 0 5 1720.0172 50 23.8 0.0 238 35 0 35 22.9 0.0 22.9
3-0ther 0 2 20.04.9 6.9 20 2 950.0 95527 3.3 1.3 4.c
Total 218 2972.427.6100.174 2181.019.0100.106 4715369.330.7100
199

-
-
TABLE 9146 EVALUATION OF OBJECT SIGHTINGS EOR ALL YEARS I
84 OfF OBJECT SHAPE NOT STATED
All YEARS 1947 1948 1949
Per Cent Number Number Per Cent
Evaluation Certan Doubtful Total Certain Doubtful Doubtful Total Doubthul
0-Balloon 31 28 59 6.0 5.4 11.4 1 50 00 5.0 3 2 5 136 91 22.7 0 0 0.0
l-Astronomical 62 42 104 12.0 81 20.1 4 / 5 200 50 25.0 0 3 3 0.0 136 13.6 12 13 26 333 36.1 69.4
2-Aircraft 55 31 86 10.7 6.0 16.7 / 2 50 5.0 10.0 0 3 13.6 00 136 4 / 5 11.1 2.8 13.9
3-Light Phenom. 8 0 0.0 16 00 2 0 2 91 20 21 00
4-Birds 2 / 04 02 0.6 20 / 0.0 4.5 45 0 -
5-Clouds, Dust, etc. 2 0 0.4 04 0.0 20 0 0.0 00 00
6 Insuffic. Into. 98 0 98 19.0 12.0 20.0 00 200 1 7 31.8 00 318 4 11.1 0.0 171.7
7-Psychological 2 1 3 04 0.2 0.6 / 01 5.0 0 0 0 00 20 0.0 0.0
&-Unkuno wn 116 22.50.0 22.5 5 250 0.025.01 2 450.045 0 00 1
0.0
9-0ter 32 5 376.2 1.0 722 0 2 1000.0 10.0 0 0 0 0000 00 20 2 5.6 0.0 56
Total 408108516 79.1209100. 182 20 90010.0 100. 166 2272.727.3 100. 22 14 36 61.138.9 100.
1950 1951 1952 1
Per Cent Number Per Cent
Evaluation Doubthul Certain Doubthul Total Doubtful Doubthul Total Dou btful
0-Balloon 2 1 3 4.3 2.2 6.5 0 / 00 2.3 25 24 49 7.2 6.9 14.1
1-Astronomical 9 3 12 19.6 6.5 26.1 10 < 16 227 13.6 36.3 27 16 43 7.8 4.6 12.4 •
2-Aircraft 7 5 12 15.2 26. 2 4 4.5 4.5 90 38 22 60 10.9 6.3 112
3-Light Phenom. 0 2.0 1 0 2.3 0.0 2.3 5 14 0.0 1.4
4-Birds 0.0 0.0 e 0 0 2.0 2 2 0.6
5-Clouds, Dust, etc. 0 0.0 0.0 00 0 20 2 00 0.6 1 1
6-Insuffic. Info. 6 0 13.0 00 40 4 0 4 9.1 0.0 91 730 73 73 21.0 21.0
7-Psychological 0 00 0.0 0/ 0 / 2.3 2.3 0.0 0/ 01 00 03 0.3
&-Unknown 8-Unknown 10 0 10 21.7 21.7/3 13013 0 13 29.50.0 29.5 870 87 0.0 25.0
9-0ther 3 0 36.5 0 6.5 0.06.540 49.10.0 0.06.5 404 9.10.0 9.1 21 5 26 9.1 21 526 6.0 1.47.4 1 1
Total 37 9 46 80.419.6 100. 35 9 44 79.520.5 100. 280 68 34880.519.5100. 379 4680.419.6 100.3594479.520.5100.280 6834880.519.5100.
1 1
i
200

TABLE A147 EVALVAIIONOE ALL SIGHTINGS EOR ALL YEARS BY REPORTER
SPEEDS OF QBJECTS STATIONARY
ALL YEARS 1947 1948 1949
Per Cent Number Per Cent
Evaluation Certain Doubthul Total Certain Doubtful Doubtful Total Doubtful Total
G-Balloon 89 √1 140 21.4 12.3 33.7 0 0 0.0 0.0 3 4 23.1 7.7 30.8 0 - 4.0 0.0 4.0
1-Astronomical 41 33 74 99 7.9 17.8 0 2 2 0.0 100.0 100.0 4 / 5 30.8 7.7 38.5 9 17 32.0 36.0 68.0
2-Aircraft 29 19 48 7.0 4.6 11.6 0 0 0.0 0.0 0 2 4.0 8.0
3-Light Phenom. 4 3 7 10 0.7 1.7 0 0 0.0 0.0 0 o o D
4-Birds 0 0.0 0 0 O o o
5-Clouds, Dust, etc. 4 6 10 1.0 1.4 2.4 0 0 0 0 0.0 o 0.0
6Insuffic. Into. o 26 6.2 0 0 0.0 2 2 15.9 15.4 8.0 0.0
7-Psychological 11 , 12 2.6 0.2 2.8 0 0 0.0 0 o 9 00 0.0 1 1 4.0
8-Unknown 0 79 19.0 19.0 0 0.0 0 2 o 2 8.0
9-0ther 13 7 20 3.1 1.7 4.8 0 0 , 2 77 7.7 15.4 0 0.0
Total 296,12041671.228.8100. 0 2 0.0 100.0100. 10 3 13 76.9 23.1 100. 15 102560040.0100.
1950 1951 1912
Number Per Cent Number
Evaluation Certain Doubtful Total Dou btful
0-Balloon 8 0 8 3.4 36.4 0 4 23.J 0.0 23.5 13 50 /23 21.2 14.8 36.5
1-Astronomical 0 5 22.7 0.0 2 3 11.8 17.6 29.4 22 18 40 4.5 5.3
2-Aircraft o 0 0 0.0 / A 5.9 5.9 11.8 27 17 44 8.0 5.0 13.0
3-Light Phenom. 0 o o 0 00 0.0 4 3 7 1.2 0.9 2.1
4-Birds 0 0 o 0.0 0 ill
5-Clouds, Dust, etc. 0 0 0 o 0 0.0 4 6 6 10 1.2 1.2 1.83.0 18 3.0
6-Insuffic. Into. 2 0 2 9.1 / L O 5.9 0.0 5.9 19 19 5.6
7-Psychological 7-Psychological 3 0 3 13.6 0.0 13.6 13.6 0 o 0 0.0 0.0 7 1 8 2.1 0.3 2.4
8-Unknown 2 0 2 9.10.09.1 9.1 0.09.1 √ o 5 29.4 0.0 70 o 70 20.8 0.0208
9-0ther 0220.0 9.1 9.1 0 9.1 9.1 0 0 0.0 0.0 0.012 4 124 16 3.6 1.2 4.8
Total 20 2 2290.9 9.1 100. 13 4 1776.523.5100. 23899 33770.629.4 100. 20 2 2290.9 9.1100.13 4 1776.5 23.5 100. 238 99337 70.629.4 100.
TABLE A148 EVALVATION OF ALL EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BY SIGHTINGS FOR ALL YEARS BY REPORTER
SPEEOS OF OBJECTS OF OBJECTS LESS THAN ONE HUNDREO MILES THAN ONE HUNDREO MILES PeR HOUR PEP HOvR
ALL ALL YEARS 1947 19.47 19.48 19.29
Per Cent Number Number Per Cent
Evaluation Doubtul Doubtful Doubthul Doubtful Total Certain Certain Dou btful Total
0-Balloon 0-Balloon 49 30 30 79 193 11.8 31.1 31.1 , 0 1 50.0 50.0 0.0 8 2 10 10 27.6 6.9 34.5 34 1 4 5 4.0 16.0 20.0 20.0
1-Astronomical 23 21 21 44 9.1 8.3 8.3 17.4 174 0 0 0 0.0 0.0 5 2 7 12 12 11.2 24.1 24.1 41.3 41.3 8 √ '3 13 32.0 20.0 52.0
2-Aircraft 020 20 23 43 7.9 79 9.1 9.1 17.0 170 0 0 0 0.0 00 e0 , 3.4 3.4 6.8 68 7 2 0.0 - 8.0 80 8.0
3-Light Phenom. 3 3 1.2 0 0.0 0 o 0 0.0
4-Birds 6 , 7 2.4 0.4 2.8 o o 0 0.0 0.0 0 O 0
5-Clouds, Dust, etc. 2 7 2.0 0.8 2.8 0 0.0 0 O 0.0
6-Insuffic. Info. 8 3.1 0 0 0.0 1 0.0 3.4 / 4.0
7-Psychological 0 2 0.8 0.0 0 0.0 0 00
B-Unkno wn 49 0 49 19.3 19.3 0 1 1 3.4 3 3 12.0 0.0 12.0
9-0ther 8 4 12 3.1 1.6 4.7 0 / 0.0 50.0 3 3 10.3 / 1 4.0 0.0
Total 170 8425466.933.1 100. 2 0 2 100.00.0100. 1C 13 2955.244.8100.14112556.044.0100.
I 1950 1957 1952
Number Number Per Cent
Evaluation Certain Doubtful Total Certain
0-Balloon $\ / 6 17.2 3.4 20.6 O - 20.0 0.0 20.0 33 23 56 20.1 14.0 34.1
1-Astronomical 0 1 3.4 0.0 3.4 , - 0.0 20.0 20.0 9 8 17 5.5 4.9 10.4
2-Aircraft 0 6 20.7 , 0 - 20.0 0.0 12 20 32 7.3 12.2 19.5
3-Light Phenom. 0 0.0 O o 0 3 3 0.0 1.8
4-Birds 0 0 0.0 0 o 6 , 7 37 0.6 4.3
5-Clouds, Dust, etc. 0 0 00 0 0.0 7 3.0 1.2 4.2
6-Insuffic info. , 1 3.4 34 0 0.0 J 0 5 3.0 0.0 3.0
7-Psychological 0 0 0.0 2 o 2 1.2 0.0 1.2
&-Unkno wn 14 0 14 48.3 0.0 48.3 2 0.0 40.0 29 o 29 17.7
9-0ther 1 3.4 0.0 0 0.0 6 3.0 0.6 3.6
Total 28 2996.6 3.4 100. 4 580.0 20.0 100 106 58 16464.635.4 100.
-
201

-
TABLE A149 EVALUATION OF ALL SIGHTINGS FOR ACL YEARS 8y REPORTED
SPEEOS OF OBJECTS ONE HUNDRED TO FOUR HUNOREO MILES PER HOUR -
Acl YEARS 19.47 19.48 19.49
Number Per Cent Number Per Cent Number
Evaluation Certain Doubtful Total Certain Total Doubtful Certain Doubtful Total Doubthul Doubthul Total
0 Balleon 26 10 36 8.2 3.2.11.4 3 0 150 0.0 150 1 6 4.3 21.7 26.0 2 0 2 0.0 5.1 1
1-Astronomical 16 19 35 50 6.011.0 o 0 0 00 0.0 00 3 , 4 13.0 4.3 17.3 o 10.3 10.3
2-Aircraft 72 3J 107 22.7 11.0337 / 0 - 50 0.0 5.0 5 17.4 4.3 21.7 6 12 154 15.4 30.8
3-Light Phenom. 4 2 6 1.3 0.6 1.9 1 I 50 0.0 5.0 4.3 8.6 0 o 0 0.0
4-Birds 1 0.0
1 0.0 0.3 0.3 0 0 0.0 1 4.3 4.3 o 0.0 0.0 1
5-Clouds, Dust, etc. 0 2 00 0.6 06 0 0.0 o 0 0.0 0 0.0
G insuffic. info. 26 o 26 6.2 0.0 8.2 0 I 5.0 0.0 50 O 2 8.7 0.0 8.7 0 8 20.5 20.5
7-Psycho logi cal 8 0.0
6 2 1.9 0.6 2.51 1 \0$ 5.0 10.0 0 0 0.0 0 00 0.0
B-Unkno wn 0 88 27.8 0.0 0 11 55.0 0.0 5.0 0 3 13.0 13 33.3 0.0 33.3 I
1-0ther 2 8 2.2 0.3 2.51 0 5.0 0.0 1.0 0 0 0.0 0.0
Total 245 7231777.322.7100.19 1 209.0 5.0100. 14 9 23 60.9391 100 29 10 39 74.4 25.6 100.
|
1950 1951 1952
Number Per Cent Number Per Cent Num ber Per Cant 1
Evaluation Doubtful Total Certain Doub thul Certain Doubtful Total Certain Doubtul Doubtful Doubthul Total Dau btful Total
0-Balloon 6 1 7 176 2.9 20.5 2 0 143 0.0 12 4 16 6.4 2.1 8.5
1-Astronomical / 3 4 2.9 8.8 11.7 / 2 7.1 142 11 10 21 5.9 5.3 11.2
2-Aircraft 0 6 17.6 0.0 176 4 1 5 28.6 7.1 352 27 78 27.3 14.4 41.7
3-Light Phenom. 0 0.0 o 0 0.0 2 1 3 1.1 0.5 1.6
4-Birds 0 0.0 0.0 0 o 0 0.0
S-Clouds, Dust, efc. 0 O 0 0.0 0.0 0 2 1.1
5-Insuffic. Into. S 0 5 14.7 0.0 14.7 0 0 0.0 10 5.3 $\r3}$
7-Psychological 1 0 2.9 00 0 0.0 0.0 4 , 5 2.1 0.5 2.6
8-Unknown 10 0 10 294 0.0 29.4 O 4 28.6 47 0 47 25.1 0.0
9-0ther 0 1 1 0.0 2.9 2.9 10 7.1 0.0 7/ v0 5 2.7 2.7
Total 295 3485.3 14.7100 12 2 14 85.7 14.3100 142 45 18775.924.1100.
TABLE A150 EVALUATION O ACL SIGHTINGS FOR ALL YEARS 8Y REPORTED
SPEEOS OFOBJEETS OvER FOURHUNDRED MILES PER PeR HOvR HOvR
ALL YEARS AL YEARS 1942 1948 1949
Number Per Cent Per Cent Number Numbier Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Doubtful] Total Certain Doubtful Total Doubthul Certain Doubtful Dou btful
G-Balloon 24 31 55 3.2 4.1 73 73 1 0 , 2.6 0.0 2.6 2 √ 7 40 10.0 14.0 0.0 1.5 1.5 15
1-Astronomical 98 98 74 74 172 13.1 13.1 9.9 23.0 23.0 10 4 14 26.3 10.5 368 368 7 14 14.0 28.0 3 25 2S 28 4.4 36.8 36.8 41.2 41.2
2-Aircraft 2-Aircraft 101 94 90 19s 14.- 13.5 12.5 26.0 2/ 0 1 2 0.0 5.3 -3 4.3 3 2 5 6.0 4.0 10.0 6 7 13 8.8 10.3 19.1
3-Light Phenom. 7 4 1/ 0.9 0.5 1.4 0 0 0.0 0.0 1 3 4 2.0 6.0 8.0 0 0.0
4-Birds 5 2 7 0.7 0.3 1d 0 0.0 2 2.0 4.0 2 1 3 2.9 15 4.4
5-Clouds, Dust, etc. / 0 / 0.1 0.0 01 0 0 0.0 0.0 o
6-Insuffic. Into. 54 0 7.2 0.0 0 2 5.3 0.0 2.3 0 10.0 0 74 0.0 2.4
7-Psychological 7 3 10 0.9 0.4 1.3 0 1 1 00 2.6 2.6 0 O 0.0 1 1.√t 1.5
8-Unkno wn 214 0 2850.0 28.5 13 0 13 34.2 0.0 34.2 1 0 11 22.0 220 15 22.1 0.0 22.1
9-0ther 27 4 31 3.60.54.105 13.2 0.0 13.2212 202.0 4.0 20 2 2.9 0.0 2.9
Total 538212 75071.728.3100. 31 7 38 81.618.4 100. 31 19 5062.0 38.0 100. 34 34 6850.0 50.0 100.
19.d0 19s1 1912
Number Per Cent Number Per Cent Per Cent Number Per Cent
Evaluation Doubtful Certan Doubthul Total Certain Doubttul Doubthul Total Certain Doubtful Doubtful Tot al
G-Balloon 4 0 7.1 0.0 71 1 2 2.5 2.5 5.0 16 24 40 3.2 8 8.0
1-Astronomical o2 9 11 3.6 16.1 197 13 14 32.Jt 2.5 350 63 91 12.7 5.6 18.3
2-Aircraft S 4 13 16.1 2.1 23.2 4 2 6 10.0 5.0 11.0 79 27 156 15.9 15.5 31.4
3-Light Phenom. 0 0 0.0 0.0 1 0 2.57 2.5 √ 6 1.0 0.2 1.2
4-Birds 0 0.0 0.0 0 O 0.0 2 0.4
5-Clouds, Dust, etc. 0 0.0 0 0.0 10 / 0.2 0.2
6-Insuffic inko. 2 0 7 125 0.0 125 0 00 3t0 35 17.0 0.0 7.0
7-Psychological 0 0.0 0.0 0 , 1 0.02.5 2 6/2 1.2 0.2 1.4
8-Unknown 17 0 30.4 0.0 13 O 13 32.5 0.0 32.5/45 0 145-29.1 0.0 29.1
9-0ther 2 4 36 3.6 7.2 3 0 3 7.0.0 7.5 14 1 15 2.8 0.2 3.0
Total 41155673.226.8100. 35 5 4087.512.5 100.366132498 73.526.5100.
202

planation because of the importance assumed by the identification as a basis
for statistical treatment. As was mentioned, a conference of four qualified
at ATIC, periodically, as reports became ready.
decision was not made within a reasonable time, the report was put aside
of
opinions. If, after this, disagreement continued to exist, the report of the
sighting was identified as UNKNOwN.
13

TABLE R151 EVALVATION OEALL SIGMTINGS FOR ALL YEARS BY REPORTED
SPEEDS OF OBJECTS METEOR-LIKE SPEEDS
ALL YEARS 1947 1948 1949
Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtul Doubtful Certain Doubtful Tota
0.Balloon 0 3 3 2.0 0.0 0.0
1-Astronomical 52 34 91 39.3 22.8 6/1 3 3 1000 V00.0 6 7 13 37.5 43.8 81.3 0 6 0.0 100.0 100.0
2-Aircraft 10 2 12 6.7 1.3 8.0 0 00 o 0.0 0 0.0
3-Light Phenom. 0 0.0 o 0 O 0.0
4·Birds 0 / J 0.7 0.7 0 o 0.0 00 0.0
5-Clouds, Dust, etc. , / 0.7 0.0 0 0.0 0
6 Insutfic. into. 9 6.0 6.0 0.0 0 0 0.0
7-Psychological / 0.7 0 0 0.0 o 0.0 00
&-Unknown 0 27 18.1 0.0 o 0 3 18.7 /8.7 0.0
9.0ther 4 4 2.7 0.0 2.7 00 0 0.0
Total V084114972.527.5100.30 3 10000.0 100. 97 16 56.243.8100.0 6 6 10.01000100.
1950 1951 1952
Number Per Cent Number Per Cent
Evaluation Certain Total Doubtful Doubthul Dou btful
0-Balloon 0 0.0 0 0.0 3 3 3.1 31
1-Astronomical 9 7 16 56.2 43.8 100.0 3 3 6 30.0 60.0 36 11 47 36.7 11.2 41.9
2-Aircraft 0 0.0 0.0 10 2 12 10.2 2.0 12.2
3-Light Phenom. 00 0 0.0 0.0 0
4-Birds 4-Birds 0 O 0.0 O 0 o 0.0 00 00 D / 1 1 1.0 10 1.0
5-Clouds, Dust, etc. 00 0 0 / 0.0 1.0 10
Ginsuffic. Info. 6-insuffic. Info. 0 0 00 0.0 / 1 10.0 10.0 8 8 8.2 0.0 8.2
7-Psychological 0 0.0 D 0 1 1 / 0.0 10 1.0
8-Unknown &-Unknown 0 00 00 0.0 2 2 0 20.0 20.0 200 22 22 22.4 0.0 224 224
9-0 ther 9-0ther 0 0.0 1 1 / 10.0 0.0 100 30 3 3.1
Total 9 7 9 7 1656.243.8100. 1656.2438 100. 7 3 1010030.0 100. 80 18 988.618.4 100. 731010030.0 100.8018 9881.618.4100
TABLE A152 TABLE A152 EVALVATION OFALL EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BY REPOETED
SPEEOS SPEEOS OF OBJEETS SPEED NOT STATED
ALL YEARS 1947 1948 1948 19.49 1949
Number Per Cent
Evaluation Doubtful Total Doubthul Doubtful Doubtul Certain Dou btful Total
G-Balloon G-Balioon 82 55137 55 137 6.2 4.2 4.2 10.4 2 2 0 O 2 3.8 0.0 3.8 3 7 10 4.1 9.5 13.6 12 0 12 8.2 0.0 2.2
1-Astronomical 241 241 160 401 V8.3/2.2 18.3 12.2 30.5 19 2 21 36.5 3.8 40.3 11 16 27 22 14.9 21.6 36.16 36.1 55 83 138 23.7 23.7 35.8 59.5
2-Aircraft 122 115 237 9.3 87 18.0 , 1 1.9 0.0 19 9 10.8 1.4 12.2 18 10 28 7.8 4.3 12.1
3-Light Phenom. 17 12 29 1.3 0.9 2.2 / 1 19 0.0 1.9 2 2 2.7 22 0 0.0 00
4-Birds 8 √ 13 0.6 0.4 1.0 0 O 0.0 00 1 / 2 14 1.4 2.8 0.9 0.0 0.9
5-Clouds, Dust, etc. 1 3 4 0.1 0.2 0.3 0 00 0.0 O 0 0.0
6-Insuffic. Into. 75 175 13.3 00 /3.3 11 0 11 21.1 9 0.0 12.2 20 20 8.6 0.0
7-Psychological 12 3 1s 0.9 02 1.12 2 38 00 3.8 1 1 1.4 141 0 , 04 0.0 0.4
&-Unknown 232 232 17.6 0.01764 4 0.0 7.7 0 9 12.2 12.223 0 23 9.9 0.0 9.9
9-0ther 53 19 12 40 1.4 5.410 0 10 19.2 0.0 19.2 2 3 \ 2.74.1 6.8 8 3.4 0.0
Total 943372131571.728.3100. 50 2 5 5296.23.8 100.4430 7459.5-40.5100.V39 93 23259.9 40.1100.
1950 1957 195-2
Per Cent Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Total Certain
G-Balloon 10 15 6.7 3.4 10.1 3 2.7 4.1 68 53 40 93 7.2 5.4 12.6
1-Astronomical 31 6 37 20.8 4.0 24.8 6 8 14 8.1 10.8 189 119 41 164 16.2 6.1 22.3
2-Aircraft 18 // 29 12.1 7.4 19.5 6 4 10 8.1 J.4 13.5 71 89 160 9.7 12.1 21.8
3-Light Phenom. 0 0 0.0 0.0 1 2 14 2.8 159 24 2.0 1.2 3.2
4-Birds 0 0.0 1 1 0.0 1.4 1.4 √3 8 07 0.4 11
5-Clouds, Dust, etc. 0 0.0 00 00 0.0 4 0.1 0.4 05
6insuffic. into. 34 0 34 22.8 0.0 22.8 12 0 12 16.2 0.016.2 89 0 8912.10.0 12.1
7-Psychological 0 0.0 1 0 1 1.4 0.01.4 7310 1.00.4 1.4
&-Unknown 0 28 0.0 18.8 26 26 3.5.0 0.0 35.1142 0 14219.3 0.0 19.3
9.0ther 4 2 6 2.7 1.3 4.0 4.1 0.0 4.1 26 14 40 3.5 1.9 5.4
Total 125 2414983.9 16.1100.57 17 7477023.0100.52820673471.928.1100.
203

-
TABLEA153 EVALUATIONOF UNIT SIGHTINGS FOR ALL YEARSBY REPORTED 1
SPEEDS Of OBJECTS STATIONARY
ALL EARS 1947 19.48 1949
Per Cent Number Per Cent
Evaluation Certan Certain Doubtful Certain Total
G-Balloon 45 13.1 O 16.7 8.3 250 0 1 5.6 -
71 116 20.6 33.2 00 0.0 2 , 3 0.0 5.6
1 Astronomical 36 24 60 10.5 7.0 175 0 2 e.0 100.0 4 √ 33.3 8.3 41.6 5 10 27.8 22.8 55.6
2-Aircraft 25 17 42 7.3 4.9 12.2 0 00 0.0 0 0.0 1 2 5.6 5.6 11.2
3-Light Phenom. 4 3 7 1.2 0.9 2.1 0 00 0.0 D 0.0 |
4·Birds 0 0 0.0
5-Clouds, Dust, etc. 4 √ 0.3 12 1.5 0 0 00 0.0 0.0 00
6 Insuffic. into. 26 76 7.6 0 0 0.0 2 2 16.7 0.0 1.7 2 111 11.1
7.Psychological 9 1 10 26 0.3 2.9 0.0 0 0 0.0 0.0 5.6
8-Unknown 0 62 18.0 180 0 0.0 2 2 11.1 0.0
9-0mher 10 6 16 2.9 17 4.6 0 0 0 0.0 0.0 / 2 8.3 166
Total 24410034470.929.1100. 0 2200100.0100. 9 3 12 75.025.0100.12618 66.7 33.3100.
1910 19.11 1952
Number Number Per Cent Num ber Per Cent
Evaluation Certain Doubtful Total Doubtful Certain Dou bt ful Total
O-Balloon 0 6 313 0.0 35.3 3 O 3 25.0 0.0 25.6 59 44 103 20.9 H.S 36.4 1
1-Astronomical 5 0 J- 294 0.0 294 - 3 16.7 8.3 25.0 20 15 35 7.1 5.3 12.1
2-Aircraft 0 0 0.0 0.0 2 8.3 1.3 16.6 23 15 38 8.1 5.3 13.4
3-Light Phenom. 0 0 0.0 0.0 4 3 7 14 1.1 2.5
4-Birds 0 0 0.0 00 0.0
5-Clouds, Dust, etc. 0 0.0 0.0 0 / 4 4 √ √ 0.4 1.4 1.8
6-Insuffic. info. 0 2 2 11.8 0.0 11.8 1 0 1 8.3 8.3 19 19 6.7 0.0
7-Psychological 1 1 J.9 0.0 5.9 0 0 0.0 7 , 8 2.5 0.4 2.9
8-Unknown &-Unknown 2 2 1/8 0.0 11.8 11.8 3 3 25.0 0.0 √ √ 0 55 19.4 19.9 19.9
9-0ther 9-0ther 1 / 0.05.9 5.9 0 0.0 0.0 9 4 9 4 13 3.2 1.4 4.6
Total 16 1 1794.159 100,10 2 1611794159 100,10 2 1283.316.7100.V97 86 1283.316.7100.V978628369.6 283696 304100. 30.4100.
TABLE A154 EVALUATION Of UOUT VNIT SIGHTINGS FOR ALL YEARS BY REPORTED SIGHTINGS FOR ALL YEARS BY REPORTED
SPEEOS SPEEDS OF OBJECTS OBJECTS LESS THAN ONE LESS THAN ONE HUNDRED MILES PER HOUR HUNDREDMILES PEE HOUR
ALL YEARS 1947 1948 19.49
Number Number Per Cent Per Cent
Evaluation Doubtful Doubtul Total Certain Certain Dou bttul Dou bttul Total
G-Balloon 0-Balloon 47 27 74 22.9 13.2 36.1 36:1 / / 0 50.0 50.0 0.0 8 8 1 9 9 42.1 1.3 47.4 2 3 5.6 11.1 11.1 16.7
1-Astronomical 20 11 37 3/ 9.8 1.4 15.3 15.2 O 0 0.0 4 4 / 5 S 21.1 d3 2C.9 6 2 8 33.3 11.1 11.1 44.4
2-Aircraft 18 11 21 39 2.9 8.8 88 10.2 19.0 0 0 0.0 / 1 2 5.3 12 S.3 C7 10.6 LA 7 0.0 111 11.1 111
3-Light Phenom. 0 3 1.5 6 0.0 0.0 o 0
4-Birds 3 4 1.5 0.5 2.0 O 0.0 0.0 0 0 0
5-Clouds, Dust, etc. 1 2 0.5 1.0 0 .0 0 00 0.0 0 0.0
6-Insuffic. into. L 6 2.9 0 0 0.0 0.0 00 / / 5.6 6.6
7-Psychological 2 0 10 1.0 0 0.0 0.0
&-Unknown 33 0 /6.1 161 00 0.0 0 1 √.3 0.0 5.3 3 O 3 16.7
9-0ther 8 3 11 3.9 1.55.9 1 0 / 50.0 50.0 2 2 0.0 10.5 10.st 1 0 5.6 0.0
Total 138 67205 67.332.7 100. 20 2 V0000.0 100. 14 5 1973.726.3 100.12 6 18 66.733.3 100.
1950 1951 1952
Number Per Cent Number
Evailuation Certain Doubtful Total
0-Balloon 4 1 5 21.1 5.3 26.9 0 / 25.0 0.0 25.0 32 23 55 22.4 16.1 38.5
1-Astronomical / 0 / 5.3 0.0 0 / 7 25.0 9 2 16 6.3 4.9 11.2
2-Aircraft 5 0 5 263 00 26.3 / / 25.0 0.0 25.0 11 18 29 7.7 12.6 20.3
3-Light Phenom. 0 0 0 0.0 3 3 0.0 2.1
4-Birds 0 0.0 0.01 0 00 3 4 2.1 0.7 2.8
5-Clouds, Dust, et- 0 0 0.0 0 / , 2 0.7 19
6-Insuffic into. 1 0 53 5.3 0 0.0 4 y 2.8 0.0 2.8
7-Psychological 0 0 00 0 0.0 2 2 1.4
&-Unksown 0 6 31.6 0.0 31.6 / 250 25.0 22 15.4 0.0 15.9
9-0ther 0 / 5.3 0.0 5.3 √} 1 6 3.5 0.7 4.2
Total 18 119 94.7 5.3 10. 3 1 4 75.0 25.0 100. 89 54 14362.237.8 100.
204

TABLE A155 EVALVATION OF UNIT SIGHTINGS FOR ALL YEARS BY REPOETED
SpEEOs OF OBJECTS ONE HUNDRED TO FOVR HUNDRED MICES PER HOVR
ALL EARS 1947 1948 1949
Per Cent Number Per Cent
Evaluation Doubtful Total Certain Certain Doubtful Total
0 Balloon 21 8 29 8.0 3.0 120 3 0 3 18.8 0.0 188 4 5 5.0 20.0 250 2 0 2 8.7 0.0 8.7
1-Astronomical 16 17 33 6.1 6.4 12.5 0 0 00 0.0 3 4 18.0 5.0 20.0 2 2 2.0 8.7 8.7
2-Aircraft 64 27 91 24.2 10.2 24.4 0 6.2 0.0 6.2 4 20.0 5.0 25.0 4 2 17.4 8.7 26.1
3-Light Phenom. 4 , 5 1.57 0.4 1.9 1 O / 6.2 0.0 6.2 / 0 1 50 5.0 0 0.0
4-Birds 0 0.0 04 0.5 O 0 0.0 o / 5.0 5.0
5-Clouds, Dust, etc. 2 0.8 0.8 0 00 O 0 D o 0.0 0.0
6-Insuffic. info. 0 25 9.50.0 9.5 1 / 6.2 0.0 6.2 o 2 0.0 10.0 8 0 8 34.8 34.8
7-Psychological 6 2 8 2.3 0.8 3.1 2 1 2 6.26.2 12.41 o 0 0.0 O 0.0
- 8-Unknown 62 0 6223.50.0 235 70 7 43.8 0.0 438 2 10.0 0.0 √ s 21.7 0.0 21.7
9.0ther 7 1 8 2.7 0.4 3.1 1 0 16.20.0 6.2 0 0 0.0
Total 205 59 264 77.722.3 100. 15 1 16 93.8 6.2 100.13 7 20 65.035.0100. 19 4 2382.61 17.4/00
-
1950 1951 1952
- Number Per Cent Per Cent
Evaluation Certain Doubtful Doubtful Total Total Certain Dou btful
0-Balloon / 4.0 40 8.0 2 0 15.4 0.0 15.4 12 3 15 7.2 1.8 9.0
1-Astronomical 1 3 3 4.0 12.0 16.0 1 7.7 15.4 11 10 21 6.6 6.0 126
2-Aircraft 6 0 6 24.0 0.0 X , 5 308 7.7 28.5 44 23 68 26.9 13.8 40.7
3-Light Phenom. 0 0 o 0.0 0.0 2 1 3 12 0.6 1.8
4-Birds 0 00 0 0.0
5-Clouds, Dust, etc. 0 0 0.0 o 0 O 00 0.0 0 2 20.0 2 1.2 1.2 1.3
6-Insuffic. Into. 5 5 20.0 0 0 00 0.0 0.09 0 95.4 9 5.4 0.0 59
7-Psychological 1 0 / 4.0 40 0 0.0 0.0 41 52.4 0.6 3.0 3.0
&-Unknown 8-Unkno wn 6 0 6 24.0 3 23.1 0.0 23/ 23.1 39 0 3923.4 23.4
9-0 ther 9-0ther 0 , 1 1 0.0 4.0 4.0 0 7.7 7.7 0.0 0.0 2.7 50 s3.0 0.0 s3.0 0.0 30
Total 20 5 2580.0 20.0 100. 11 2 20 5 2580.0 20.0 100.11 2 1384.615.400.27 40 16776.0 24.0100. 1384.615.400.274016776.024.0100.
TABLE A156 EVALUATION OF UNIT SIGHTINGS EOR ALL YEAES BY EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY REPORTED
SPEEOS OFOBJECTS OF OBJECTS OVER EOUR HUNDREO EOURHUNDREO MILES PER HOUR PERHOUR
ALL YEARS 1947 1948 1948 1949 1949
Number Per Cent Per Cent
Evaluation Evaluation Certain Certain Doubtful Doubtul Total Total
G-Balloon 20 to Yo 3.3 C.6 6.6 1 0 / 2 29 2.9 5.8 1 0.0 1.9 1.9
1-Astronomical 84 84 61 15 13.8 10.0 23.8 6 4 4 10 17.6 11.8 29.4 29.4 6 29.5 2 21 21 23 3.8 3.8 40.448.2 40.4 4Y.2
2-Aircraft 2-Aircraft 82 87 81 1C8 19 14.3 143 13.3 13.3 27.6 22 D 0 2 7 2 0.0 00 5.9 59 3 , 4 8.8 86 29 2.9 11.7 11.7 6 √ 1 11 11.5 9.6 96 21.1 71
3-Light Phenom. 7 3 10 1.1 0.5 1.6 O 0 0.0 2 2.9 5.9 8.8 0 0.0
4-Birds 3 2 5 0.5 0.3 0.8 0 00 1 / 2 2.9 2.9 5.8 0.0 1.9 1.9
5-Clouds, Dust, etc. 0 0.0 0 0.0 0 o
6-insuffic. info. 0 48 79 0.0 79 2 5.9 4 11.8 11.8 0 5 9.6 0.0 9.6
7-Psychological 7 3 10 1.1 0.5 1.4 / 0.0 2.9 2.9 0.0 / 0 1.9 1.9
B-Unknown 153 0 153 25.1 130 13 38.2 38.2 20 7 20.6 0.0 20.6 9 0 17.3 0.0
9-0ther 26 4 30 4.30.7 5.0 50514.7 0.024.7 1 1 2 2.9 5.8 10 / 19 0.0 1.9
Total 4355174 609 71.4 28.6100. 27 7 3479.420.6100. 22 12 34 64735.3100. 24 28 52 46.253.8 100
191-0 19s1 1952
Number Number Per Cent
Evaluation Doubtful Certain Doubtful Total
0-Balloon 3 0 7.9 0.0 2.9 3.4 0.0 14 18 32 3.3 4.3 7.6
1-Astronomical 2 4 6 4.3 1057 15.8 10 34.5 0.0 60 26 86 14.2 6.1 20.3
2-Aircraft 4 1/ 18.4 10.5 18.9 4 2 6 13.8 6.9 20.7 67 62 134 15.9 15.9 318
3-Light Phenom. 0 0 0.0 0.0 1 O 3.4 3.4 √ / Ce 1.2 0.2 1.4
4-Birds 0 00 O 0 0.0 2 Qs 0.5
5-Clouds, Dust, etc. 0 0.0 O 0 0.0
6 Insuffic into. 3 3 2.9 79 0 0 0.0 34 0 8.1
7-Psychological 0 0.0 00 0.0 / 34 3.4 6 71.4 0.2 1.6
&-Uniknown 11 // 28.9 0.0 28.9 7 7 24.1 0.0 24.1/06 0 10625.1 25.1
90ther 2 4 5.3 10.6 30 3 40.3 0.0 10.314 1 153.3 0.2 3.5
Total 28 10 38 13.726.3 100.26 3 29 89.7 10.3 100, 308 114 422 73.027.0100.
205

1
TABLE A157 EVALVATION OF UNIT SIGHTINGS FORALL YEAES .BY REPORTED
SPEEOS OF OBJECTS METEOR-LIKE SPEEDS -
ALL YEARS 1947 1948 1949
Number Per Cant Number Per Cent Per Cent Number
Evaluation Certan Doubtful Total Certain Doubtful Total Certan Doubthul Doubtful Total Certain
0-Balloon 0 2 0.0 1.6 1.6 0 0 0.0 C 0.0 I
1-Astronomical 48 31 79 393 25.4 4.7 / 0 1 100.0 00 100.0 6 12 429 42.9 858 6 6 0.0 100.0
2-Aircraft 100.0
6 2 8 4.9 1.6 6.5 0.0 0.0 00 0 0 0.0 O
3-Light Phenom. 0 0 0.0 00 O o 0.0 0 Q 0.0 00
4-Birds 0 1 , 0.8 18 0 0.0 0.0 0 0 0.0 -
5-Clouds, Dust, etc. 0 , 08 0.0 08 0.0 0.0 o 0 0 O
6insuffic Into. 9 74 0.0 74 0 00 0.0 0 0 00
7.Psychological 0 1 1 0.0 0.8 0.8 0 O 0.0 0 0.0 0 0.0
8-Unknown 0 18 14.8 0.0 148 0 2 2 14.3 0.0 143 0 0.0 -
9.0ther 3 o 2.5 0.0 2.5 0 00 0.0 0 0.0
Total 85 37 122 697 30.3 200.1 0 / 1000 0.0 100. 6 1457.142.900.06 0.0 100.0 100
1
1950 1951 1952
Number Per Cent Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubthul Doubtful Total Certain Total Certain Doubtful Doubtful Total Dou bi ful Total
0-Balloon -
0 0.0 0.0 0 2 2.6 2.6
1-Astronomical 9 5 1Y 64.3 35.7 100.0 2 3 6 22.2 33.3 55.5 30 11 41 38.5 14.1 52.6
2-Aircraft 0 0.0 0 o 0.0 6 2 8 7.7 2.6 10.3
3-Light Phenom. 0 0 0.0 00 0.0 o 0 o
4·Birds 4-Birds 0 0.0 0.0 00 o 0 0.0 o , / 1.3
5-Clouds, Dust, etc. 0 0 0.0 0.0 00 o 0.0 00 / 1 1.3 0.0
6-Insuffic. Info. 0 0 0.0 0.0 1 11.1 I |
o / M.1 M.1 8 0 8 10.3 0.0 10.3
7-Psychological 0 0 0.0 0.0 0 0.0 1 1 1.3 1.3
&-Unknown 8-Unknown 0 0 0 00 0.0 2 2 22.2 0.0 14 o 14 /79 /7.9 12.9 129
9-0ther 9-0ther 0 0 00 0.0 O 111.10.0 11.1 111.10.0 20 2.0 22.6 2 2.60.0 0.0 26
Total 95 1464.335.7100.6 14 64.3 35.7 100. 3 9 66.7 33.310061 17 7878.2 21.8 100. 3 966.733.310061 17 7878.2 21.8 100.
TABLE A158 EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY REPORTED EVALUATION OF UNIT SIGHTINGS FOR ALL YEARS BY REPORTED
SPEEOS OFOBJECTS OF OBJECTS SPEED SPEED NOT STATEP
ALL YEARS 1947 1948 1949
Nunber Per Cent Number Number Per Cent Number Per Cent
Evaluation Certain Certain Doubtful Total Doubthul Doubthu Doubtful Total Certain Doubtful Total Doubthul Certasn Doubtful Doubthul Total Certain Doubitful
0-Balloon 69 69 49 49 118 118 6.8 4.9 11.7 11.7 2 0 2 4.8 0.0 Y8 Y.8 3 5 3.7 3.7 5.6 9.3 7 0 59 0.0 59 5.9
I-Astronomical 179 112 291 17.7 177 11.1 28.8 12 2 14 14 28.6 4.833.4 7 4.8 33.4 7 19 13.0 22.2 35.2 35.2 21 44 65 12.6 12.6 37.0 37.0 54.6
2-Aircraft 92 87479 9.1 8.6 17.2 0 , 2.4 0.0 24 7 8 13.0 1.9 14.9 7 2 9 5.9 1.7 7.6
3-Light Phenom. 17 11 28 4.7 1.1 28 1 0 , 2.4 0.0 24 0 1 1.9 1.9 0 0.0
4-Birds 7 J 1207051.2 0 0.0 0.0 1 / 2 1.9 1.9 3.8 2 O 2 17 1.7
5-Clouds, Dust, etc. 0 0 0.0 0.0 0 0.0 0
6-Insuffic. info. 147 01471460.01469 0 9 21.4 0.0 21.49 0 9 16.7 167 12 17 14.3 0.0 14.3
7-Psychological 12 2 14 1.2 0.2 142 0 2 , 1.9 0.0 1.9 1 0 0.8 0.0 0.8
B Unknown 169 016916.70.016740 49.5 0.0 95 4 0 4 7.4 0.0 7.9 14 0 14 11.8 0.0 11.8
9-0ther 38 14 523.8 14 52 90 9 21.4 0.021.4 2 3 5 3.7 5.6 9.3 4 0 4 3.4 0.0 3.4
Total 730280101072.3 27.7 100.140 2 4295.2 4.8 100. 33 21 5461.1 38.9100. 73 46 11961.3 38.7100.
1950 1951 1952
Number Per Cent Number Per Cent
E valuation Doubtful Total Certain Doubthul Total Certain Doubtful Doubtful Total Certain
G-Balloon 8 3 11 8.3 3.1 11.47 2 2.9 4.3 7.2 48 40 88 7.6 6.4 14.0
1-Astronomical 24 6 30 250 6.3 31.3 6 8 14 8.6 11.4 20.0 109 40 149 7.3 6.4 23.7
2.Aircraft 12 2 19 12.5 7.3 19.3 6 4 10 8.6 57 14.359 73 132 9.4 116 210
3-Light Phenom. 0 0 00 0.0 / 1 2 1.4 1.4 2.815 9 24 2.4 3.8
4-Birds 0 0 0.0 1 / 0.0 1.4 7 0.6 0.5 1.1
5-Clouds, Dust, etc. O 0 0.0 0.0 00 00.0.0
6 insuffic into. 15 0 15 156 15.6 12 171 0.0 17.1850 8513.5 0.0135
7-Psychological 0 0 0.0 / 1 14 1.472 911 03 1.4
&Unknown 170 17 177 0.0 127 22 0 22 314 3.41080 10817.20.0 7.2
9.0ther 3 14 3.11.0 4.d 30 3 4.3 0.0 431710272.7 1.6 4.3
Total 79 17 96 82.3 17.7 100. 53 17 70 75.7 29.3100, 452 177 629 71.928.1 100.
206

TABLE A 159 EVALVATION OE OBJECT SIGHTINGS FOR ALL YEARS BY REPORTED
SPEEOS OF OBJECTS STATIONARY
ALL EARS 1947 1948 1949
Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total
G-Bailoon 63 39 102 209 12.9 338 0 00 2 3 20.0 100 30.0 / 6.2 0.0 62
1-Astronomical 33 Y0 53 10.9 66 17.3 0 2 0.0 100.0 o 300 00 30.0 3 8 3/2 18.8 50.0
2-Aircraft 23 1Y 35 1.6 4.0 11.6 0 0.0 o 00 / 2 6.2 62 21
- 3-Light Phenom. 4 2 6 13 0.7 2.0 0 0.0 o e 0.0 00 O
4·Birds Q 0 0.0 00 o 0.0 o O 0 00
5-Clouds, Dust, etc. 1 4 5 03 1.3 14 0 0.0 00 o 0.000 0 0.0
6-Insuffic. into. 0 24 7.9 0.0 0 2 200 0.0200 2 12.5 0.025
- 7.Psychological 8 1 9 26 0.3 29 0 0.0 00 0.00.0 6.2
&-Unknown 53 0 17.5 00 17.50 0 6.0 0.0 0.0 0.00.0 2 2 12.5 0.0/25
90ter 10 5 15 3.3 0.0 0.0 2/00·10.0200 0 00
Total 219 83 30272.521.5100.0 220.0 1000100 8 2 1080.0200100.12 41615025:000.
1950 1951 1952
Number Per Cent
Evaluation Certain Total Doubtful Doubtful Total Dou btful
O-Bailoon d 0 5 3/2 3/.2 3 3 27.3 0.0 27.3 $\srt2 }$ 38 90 21.1 15.4 36.5
1-Astronomical 0 5 31.2 0.0 3.2 2 , 3 18.2 91 27.3 18 14 32 7.3 5.7 13.0
2-Aircraft 0 0.0 00 1 0 9.1 21 11 32 8.5 45 /3.0
3-Light Phenom. 0 0.0 0 4 2 6 16 0.8 2.5
4.Birds 4-Birds 0 0 O 00.00.0.0.00 0 0.0 0.00.0 o 0.0 0.0 O 000 00 0000
5-Clouds, Dust, etc. 0 0 00 000.00 00 00.0.00 O 0 0.0 1 4 4 5 5 0.4 0.4 1.6 2.0 2.0
6-Insuffic. Info. 6-Insuffic. info. 2 0 225 0.012.5 1 K25 0.012.51 1 / 9.1 0.0 .0 17 6.9 69 6.9
7-Psychological 0 1 6.2 0.06.2 0 / 6.20.06.20 0 0.0 0.0 6 1 7 24 04 04 2.8 2.8
8-Unknown 2 0 21250.0/2.53 0 2125 0.0/2.5 3 0 3 27.3 00 46 0 18.6 18.6 0.0
9-0ther 9-0ther 0 1 10.0 6.26.200 1 0.0 6.2.6.20 0 0 0.0 00 9 3 9 3 12 3.6 1.2 4.8
Total 15116938 6.2100.10111 15116938 6.2100. 10 111 90.9 91100. 909 91 100.174 732477.41296100. 174 7324770.41296/00.
TABLE A160 EVALUATION OF OBJEET SIGHTINGS FOR ALL YEARS BY REPORTEO
SPEEOS OE OBJECTS LESS THAN ONE HUNDRED MILES PEE OF OBJECTS ,LESS THAN ONE HUNDRED MILES PEE HOUR
ALL YEARS 1947 1948 1949
Per Cent Per Cent Number
Evaluation Evaluation Doubtful Total Doub tul Doub tful Doubthul Certain Dou btful
0-Balloon 43 25 68 23.9 13.9 37.8 / / 0 0 500 5a0 0.0 50.0 6 1 7 37.5 6.2 43.7 1 2 2 3 7.1 7.1 14.3 14.3 21.4
1-Astronomical 1-Astronomical 16 10 26 8.9 5.6 14.5 0 o 0 00 0.0 0.0 3 / 4 18.8 6.225.0 6.2 26.0 < \ 1 1 6 35=2 352 7.1 42.8
2-Aircraft 13 19 32 7.2 10.6 11.8 0 / 2 6.2 6.2 12.4 0 2 0.0 143 14.3
3-Light Phenom. 0 3 3 17 1.7 0.0 O 0 O 0.0
4-Birds 3 , 4 1.7 0.6 2.5 a 0.0 0 00 o
S-Clouds, Dust, etc. 1 2 0.6 06 12 Q 0.0 000.0 0 0 0.0
6-insuffic. Into. 6 0 3.3 33 0 0 0.0 00 0.0 7.1 0.0 2.1
7-Psychological 2 0 2 /1 0.0 0 0.0 0.0000 0.0 0.0 00
8-Unknown 26 0 14.4 0.0 144 0 000010 6.2 0.06.2 1 7.1 0.0
9-0ther 8 3 11 44 1.7 6.1 10 150.0 0.050.002 2 00 12.5125 0 1 7.1 0.0 21
Total 118 62 180 65.634.4101.20 21000 0.0 100. 11 516 68.731.100.9 5- 14 64335.7 100.
1950 1951 1952
Number Per Cent
Eval uation Certain Totai Doubtful Total Certain Doubtful Doubtful Total
O-Balloon 4 1 5 23.5 5.9 29.4 1 0 250 0.0 25.0 30 21 51 23.6 165 Y0
I-Astronomical 1 0 1 5.9 0.0 5.9 / / 00 25.0 28.0 2 14 5.5 110
2-Aircraft 3 0 3 12.6 0.0 17.6 0 25.0 25.0 8 16 24 6.3 12.6 18.9
3-Light Phenom. 0 0 0.0 3 0.0 2.4 2.9
4-Birds 0 00 0.0 0 o 0.0 3 , 4 2.4 0.8 3.2
5-Clouds, Dust, etc. 0 00 0.0 0 0.0 , 2 0.8 1.6
6-Insuffic into. 1 0 1 5.9 0 00 0.0 4 3.1
7-Psychological 0 0.0 00 00 0 0.02 2 1.6 0.0
&-Unknown 6 353 00 / 0 125.0 0.025.017 17 13.4 0.0
1-0ther 1 0 1 5.9 0.0 5.9 00 00.0000.0-1 6 3.9 0.8 9.7
Total 16 1 17 94.15.9 100, 31 4 75.0 25.0100. 77 50 127606 39.4 100.
207

-
-
TRBLE A161 EVALUATION OE OBJEET SIGHTINGS FOR 3LL YEARS BY KEPORTED
SPECOS OF OBJECTS ONE HUNDREO TO FOUR HONDRED MILES PEB HOUR 1
ALL YEARS 1947 1948 1949
Number Per Cent Number Per Cent
Evaluation Certain Doubtul Total Certan Doubtful Totai Certain Total Certain Doubtful Doubthul Tota
0-Balloon 20 8 28 84 3.3 11.7 o 3 20.0 0.0 200 1 4 5 5.0 250 O 2 10.5 0.0 10.5 I
1-Astronomical 12 13 25 50 54 10.4 0 o 0.0 3 - 4 15.0 5.0 200 O 2 2 00 10.5 10.5
2-Aircraft 58 26 84 243 10.9 35.2 , 6.7 0.0 4 1 200 5.0 250 4 2 6 21.1 10.5
3-Light Phenom. 31.6
3 1 4 1.3 04 O , 6.7 0.0 0 5.0 00 50 0.0 0.0 4.0
4-Birds 0 1 1 0.0 0.4 0.4 o 0.0 0 00 50 |
o 0 00 0.0 0.0
S-Clouds, Dust, etc. 0 2 2 0.0 08 0.8 0.0 0 0.0 o 0
6-Insuffic. into. 0 22 9.2 80 92 / , 6.7 0.0 67 2 o 10.0 0.0 10.0 √ 0 26.3 263
7-Psyche logy cal 6 2 8 2.5 08 3.3 1 2 6.7 6.7 13.4 0 o 00 00 0 o 0.0 0.0
8-Unkno wn 5-8 0 58 24.3 0.0 27.3 o 6 40.0 yOu 0 2 10.0 00 10.0 4 -
21.1 0.0 2/.1
9.0ther 7 0 2.9 0.0 29 1 0.0 6.7 0 o 00 0.0 0.0
Total 186 53 23 778 222100141 15 93.3 6.7 100 13 7 20 65.935.0100. 15 4 19 789 211100.
|
1950 1951 1952
Number Per Cent Per Cent Number Number Per Cent |
Evaluation Certain Doubtful Total Doubtful Total Certain Doubthul Doubtful Total Certain Certan Doubthul Dou bthul Total
G-Bailoon 1 1 2 4.5 45 9.0 2 o 182 0.0 18.2 11 3 14 7.2 20 9.2
1-Astronomical 1 V 3 45 91 13.6 , 2 9.1 8.2 2 7 14 4.6 9.2
2-Aircraft 5 0 5 227 00 22.7 3 4 273 9.1 B6.4 41 22 63 27.0 145 41.3
3-Light Phenom. 0 O 00 0.0 0 , 2 0.7 07 1.7
4-Birds 0 00 0.0 0 O o 00 00 0.0
5-Clouds, Dust, etc. 0 0.0 0.0 0 o c 2 2 00 1.3 13
6-Insuffic. Into. 5 0 227 0.0 227 O 00 0 9 59 5.9
7-Psychological 1 0 45 0.0 45 0 4 , 5 2.6 0.7 3.3
B-Unknown 6 0 6 273 0.0273 2 0 18.2 0.0 18.2 38 38 25.0 0.0 25.0
9-0ther 0 o 0000.00.010 91 0.0 91 50 5 3.3 0.0 3.3
Total 119 9 3 2286.4 13.6 100 9 2 11 81.8 18.2 100.116 36 152763 237 100
TABLE A162 EVALVATION OF OBJECT SIGHTINGS FOR ALL YEARS BY REPOCTED — -
SPEEDS OF OBJECTS OFOBJEETS OvEREOUR OvER FOUR HUNORED HUNDREO MILES PEE HOUR
ALL YEARS 1947 1948 1949
Number Per Cent Per Cent Number Number Per Cent
Evaluation Evaluation Certain Doubtful Total Certain Dosbtful Dosbtful Total Doubthul Doubtful Doubtful Total Certan Certain Doubthul Dou btful Tutal
0-Balloon 18 18 36 36 3.3 3.3 6.6 66 0 1 3.2 00 3.2 , 2 2 30 3.0 60 0 0 0.0 1.0
1-Astronomical 63 49 112 1/2 11.5 8.9 20.4 20.7 5 4 9 9 16.1 12.9 29.0 3 6 9.1 9.1 18.2 18.2 27.3 2 16 16 18 47 37.2 41.9
2-Aircraft 82 217 157 150 13.7 28.2 0 2 0.0 6.5 6.5 3 4 91 3.0 12.1 6 √ 11 140 11625.6
3-Light Phenom. 7 3 10 /3 05 1.8 0 0.0 2 3 30 61 9.1 0 O 0.0
4-Birds 3 2 5 0s 04 0.9 0 0 0 0.0 0.0 1 2 3.0 60 1 0.0 2.3 2.3
5-Clouds, Dust, etc - 0 00 0.0 20 0 0.0 0
0 00 o 00 6.0 0.0
5 insuffic. into. 46 0 1.4 00 8.4 0 2 6.5 0.0 4 0 12.1 0.0 12.1 o 3 70 70
7-Psychological 7 3 10 13 0.5 1.8 0 / / 00 3.2 0 0.0 o , 2.3 0.0 23
8-Unknown 14s 0 145 26.50026513 13 41.9 0.0 41.9 7 0 7 21.2 0.0 21.3 0 8 18.6 0.0 18.6
9-0ther 23 4 27420.7 4.9 3.0 3 97 0.0 9.7 11 2 3.0 2.0 1 2.3 0.0 23
Total 394 154 5487/9 28.1 100.24 7 31 714 22.6 100. 2112 33 63636.4100.21224348851.2100.
1950 1951 1952
Number Per Cent Number Per Cent Per Cent Number
Evaluation Certan Doubtful Total Certain Doubtul Certain Certan Totai Certain Total Doubtful Total
0-Balloon 0 3 8.6 00 26 / 4.2 4.2 12 17 29 3.1 4.5 76
1-Astronomical / 4 5 2.9 11414.3 0 7 292 0.0 29.2 45 19 64 118 5.0 16.8
2-Aircraft 4 9 143 114 25.7 1 3 167 4.2 20.964 62 126 16.8 16.2 33.0
3-Light Phenom. 0 0 00 00 0.0 42 0.0 Y2 1 6 1.3 0.3 4.6
4-Birds 0 0.0 00 0 0 2 05 0.0 0.5
SClouds, Dust, etc. o 0 00 o 0 00 0.0
6Insuffic into. 3 0 86 00.86 0 0.0 00 34 34 8.9 8.9
7-Psychological 0 0 0.0 00 0.0 10 4.2 6 / 7 16 03 1.9
&Unknown 11 0 1/ 314 00 31.9 0 7 29.2 0.0 292 99 99 2.59 0.0 25.9
10ther 2 2 4 J.7 5.7 11.4 0 83 0.0 83/4 1 15 3.7 0.3 4.0
Total 25 10 3.5 71.4 286100. 22 2 2491.7 8.3 100. 281 101 382736 26.4 10.
208

TRBLE A163 EVALUATION QE OBJECT SI6HTIN6S EOR ALL YERRS BY REPORTED
OF OBJECTS METEOR-LIKE SPEEOS
ALL YEARS 1947 1948 1949
Number Per Cent
Evaluation Doubthul Certain Doubtful Total
0-Balloon 2 2 00 2.0 20 0 0.0 0.0
1-Astronomical 35 24 59 354 24.2 596 6 11 4.2 38.5 84.7 0 2 2 0.0 100.0 100.0
2-Aircraft 6 2 8 6.1 20 8.1 0 00 0 o 0.0 00
3-Light Phenom. 2 0.0 00 0 0.0
4-Birds , 1 20 1.0 0 0.0 0.0
5-Clouds, Dust, etc. o 1 10 1.0 N 0 00 0 0.0
6 Insuffic. Into. 8 o 8.1 0.0 0 0 00
7.Psychological 0 1 3.0 1.0 10 N 0 0.0 00
- 8-Unknown 26 0 16 16.2 0.0 2 2 15.4 154 0 00 0.0
9.0ther 3 3.0 00 3.0 0 0 0.0
Total 693099 697 303100 8 5 1361.538.5100 0 2 0.0 1000100
1950 1951 1952
- Number Per Cent Number
Evaluation Certain Total Doubtful Doubtful Total Certain Doubtful Total Dou bful
0-Balloon 0 0.0 00 0.0 2 3.0
1-Astronomical 4 9 55.6 44.4 1000 , 3 4 12.5 37.5 500 23 0 33 34.3 14.9 49.2
2-Aircraft 0 0.0 o 0.0 00 6 2 8 90 30 12.0
3-Light Phenom. 0 O 0.0 00 0 0 0.0 00
4-Birds 0 00 0.0 0 0.0 o J / 15 1.5
5-Clouds, Dust, etc. 0 00 0.0 0 1 15
6-insuffic. Info. 0 0 00 / 1 12.5 12.5 2 7 10.4 0.0
7-Psychological 0 0 00 0.0 1 / 0.0 1.5
B-Uniknown 0 0 0.0 2 2 25.0 00 0.0 250 12 12 17.9 /7.9 179
9-0ther 0 0.0 1 12.5 /2.5 00 2 2 3.0
Total 4 556 44.4 55644.4 100. 538 538 62537.5100.51166776.123.9100. 62.537.5 100.51 16 67 76.123.9100.
TABLE A164 EVALVATION OF OBJECT SIGHTINGS FOR ALL YEARS BY REPDRTED YEARS BY REPDRTED
SPEEOS SPEEOS OF OBJECTS SPEEO SPEEO NOT STATED
ALL YEARS 1947 1949 1941
Number Per Cent Number
Evaluation Certain Doubtful Total Doubthul Dou btful Dou btful
0-Balloon 63 40 103 48 48 12.5 2 0 6.9 6.9 2 3 5 3.9 3.9 98 7 0 7 7.6 0.0 7.6
1-Astronomical 1-Astronomical 115 89 204 13.8 10.7 10.7 24.5 3 2 2 5 10.3 6.9 17.2 7 7 10 17 13.7 196 33.3 33.3 17 31 48 48 18.5 33.7 52.2
2-Aircraft 8.3 75 158 10.0 90 19.0 0 / 3.4 0.0 8 13.7 2.0 157 7 2 9 76 2.2 98
3-Light Phenom. 16 9 25 1.9 11 3.0 0 1 3.4 0.0 / 0.0 2.0 2.0 O 0 00
4-Birds 6 5 11 0.7 0.6 1.3 0 0 o 0.0 0.0 20 2.0 4.0 2 2.2 00 22
0 5-Clouds, Dust, etc. 0 80 2.0 0 0.0 00
6-Insuffic. Into. 134 0 14.1 /6/ 9 0.0 310 0 9 17.6 124 0 14 15.2 00
7-Psychological 12 14 1.4 0.21.6 2 0 2 6.9 0.0 0 1 2.0 / 1.1 00
B-Unknown 0 136 16.4 0.0 /64 3 3 10.3 5.9 0.0 59 7 76 00
9-0ther 34 112 46 4.11.4 55 6 0 6 307 20.7 3 5 3.9 19 98 4 0 4 4.3 0.0
Total 599 232 831 72.1 27.9 100 27 2 29 93.1 69 100 32 1951 62.737.3100.59 33 92 64.1 35.9100
1950 1951 1952
Number Per Cent Per Cent
Evaluation Total Doubtful Total Certain Doubtful Total Certain Doubtful Total
O-Bailoon 8 2 10 11.4 2.9 14.3 3 4 1.6 4.8 64 43 32 75 8.2 6.1 143
1-Astronomical 12 4 16 111 5.7 22.8 8 13 7.9 12.7 20.6 7/ 34 105 13.5 6.5 200 .
2-Aircraft 9 5 14 12.9 7.1 20.0 6 4 10 9.5 6.3 158 S3 63 116 10.1 12.022.1
3-Light Phenom. 0 0 00 0.0 0.0 , 16 15 7 22 2.9 1.3 4.2
4-Birds 0 0 00 / 0.0 16 1.6 3 6 0.6 06/2
5-Clouds, Dust, etc. 0 0.0 0.0
6-insuffic. into. 0 13 186 0.0 18.6 12 0 12 190 00 22 77 14.6 0.0 14.4
7-Psychological 0 0.0 1 16 0.016 2 9 1.3 0417
&-Uniknown 14 0 20.0 0.0 18 0 286 0.0286 91 91 17.3 0.0 17.3
90ther 3 0 4.3 0.0 4.3 30 3 48 0.0 4.8 16 9 25 3.0 1.7 47
Total 59 11 70 84315.7 100. 46 1763 73027.0 100.376 15052671.528.5 100.
209

-
1
TABLE A165 EVALVATIONOFALL SIGHIINGS FORALLYEARS -
BY LIGHT BRIGHTNESS
SUNLIGHT ON MIRROR SUNLIGHT ON ALUMINUM SUNLIGHT ON PLASTER SUNLIGHT ON STONE
Per Cent Number Nuraber
Evaluation Total Total Certain Doubtful Total Doubtful Doubthul
0.Ballaon 2 5 7 2.4 5.9 8.3 31 23 54 12.7 9.4 22.1 // 8 19 12.2 8.9 21.1 4 10.5 10.5 21.0 1
1-Astronomical 19 14 33 22.4 16.5 38.9 12 10 22 4.9 4.1 9.0 9 18 10.0 200 2 / 3 105 5.3 15.8
2-Aircraft 9 3 12 10.6 3.5 14.1 42 34 76 17.2 13.9 31.1 6 13 19 6.7 14.4 21. 0 3 0.0 15.8
3-Light Phenom. 1 / 1.2 1.2 4 0.0 1.6 0 od 1.1 00 a0
4-Birds 0 o.d 0.0 00 / 2 0.4 Q.4 0.8 1 11 1.1 2.2 1 0.0 5.3 -
5-Clouds, Dust, etc. 0 0.0 00 2 2 0.8 0.0 0.8 3 1.1 2.2 3.3 0
-Insuffic. Into. 9 9 10.6 0.0 10.6 17 17 7.0 7.0 0 10.0 ad / 5.3
7-Psychological 2 2 2.4 24 4.9 4 0.8 1.6 0 ad O0 0 0.0
B-Unkuno wn 15 17.6 0.017.6 52 052 21.3 0.0 0 16 17.8 0.017.8 0 5 26.3 00 26.3 1
9-0ther / 4 1.2 3.5 4.7 9 211 3.7 0.8 4.5 3 0 3.3 0.0 3,3 20 2 10.5 0.010.5
Total 58 278568.231.8100./687624468.931.1100.56 3490 62.237.8100.12 71963.236.8/00. 1
SUNLIGHT ON SOIL BRIGHTER THAN Moex LIKE MooN DULLER THAN 1
Number Per Cent Number
Evaluation Certain Doubtful Total Doubthul Dou btful
0-Balloon 4 0 4 0.0 57.1 19 28 47 4.0 5.9 9.9 / 2 3 1.9 3.8 5.7 5 7 12 7.1 10.0 17/
1-Astronomical 0 / 0.0 14.3 130 69 199 225 14.6 42.1 4 // 15 7.5 20.8 28.3 6 17 23 8.6 243 32.9
2-Aircraft 0 0 0.0 0.0 27 52 79 5.7 11.0 16.7 14 2 16 264 3.8 30.2 3 3 6 4.3 8.6
3-Light Phenom. O 0 0.0 0.0 6 3 9 1.3 0.6 1.9 7 3 3.8 5.7 4 1.4 4.3 5.7
4-Birds 4-Birds 0000.00.00.01010.2 0 0.0 0.0 0.2 2.0 0.2 0.2 0 00 00 0.0 00 / 2 1.4 1.4 1.428 1.4 28
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0.0 14.314.3 ad 14.3 000 O 00 20 a0 a0 0 0 0 0.0 0.0 00 0000 00 1 1
6-Insuffic. Into. 6-insuffic. Info. 000 0 0.00.00.022 02247 22 47 0.0 4.7 0 0.0 3 0 3 3 4.3 0.04.3 H.3
7-Psychological 000 0 0 0.00.0 0.0 3 0 3 0.00.0 0.0 3 3 0.6 0.0 a / / 0.0 19 1.9 022 2 a0 29 29 2.9
8-Unknown / 0 1 14.3 0.014392 09219.5 1 14.3 0.014.392 92 19.5 0.0 19.5 150 0 15 28.3 2.0 28.3 15 01521.4 15 01521.4 0.0 21.4
9-0ther 00 00.00.0 0.0 144 6 203.01.3 00 00.0 0.0 0.0 14 6203.0 1.3 4.3000 4.3 0.0 0.003 3 0.0 03 3 0.0
Total 5 27 71.428.6100.314 158 47266.533.5100. 35 18 53 66.034.0 100. 3436 7048.651.4100. 5 2 7 71.428.6100.314158 472 66.533.5100.35 18 53 66.034.0 100. 34 36 70 48.651.4 100.
BARELY VISIBLE Nor STATED
Per Cent Number Number Per Cent
Evaluation Evaluation Doubtful Total Doubthul Certain Coubtful Certain Total Doubtful Total Doubtful Total Dou btful 1
0-Balloon / 1 2 8.3 8.3 16.6 194 104 104 298 9.0 4.8 13.8
1-Astronomical 2 0 2 16.7 16.7 0.0 292 292 209 501 501 13.6 13.6 9.7 23.3
2-Aircraft / 2 8.3 16.6 1 252 177 429 11.7 8.2 A 19.9
3-Light Phenom. 0 0 0.d 0.0 23 1/ 34 1.1 0.5 1.6 -
4-Birds 0 0 0.0 15 6 21 0.7 0.3 1.0
5-Clouds, Dust, etc. 0 od 0.0 9 10 19 0.4 0.5 0.9
6-Insuffic. info. 0 2 16.7 0.0 235 23510.9 0.0 10.9
7-Psychological 0 0.0 0.0 31 3 34 1.4 0.1 1.5
&-Unknown 44 0 4 33.3 0.033.3 4474 047422.1 0.022.1
9-0ther 00 0 0.00.0 0.083211043.9 1.04.9
Total 102/283.316.7/00.1608541214974.825.2100.
210

SINLIGHT ON MIBROR SUNLIGHT Or ArUMINUM SUNLIGHT ON PLASTER SUNLIGHT ON STONE
Number Per Cent
Evaluation Doubtful Certain Total Certain
0 Ballson 2 4 6 2.7 5.3 8.0 28 47 14.1 9.5 23.6 11 8 19 14.9 10.8 25.7 4 105 10.5 21.0
1-Astronomical 17 13 30 32.7 17.3 40.0 11 10 21 5.5 5.0 10.5 9 12 /2.2 4. 16.3 2 3 10.5 5.3 15.8
2-Aircraft 5 3 11 10.7 4.0 14.7 33 29 62 166/4.6 312 6 12 18 81 16.2 24.3 3 0.0 15.5 15.8
3-Light Phenom. / 0 1 1.3 0.0 0 3 1.5 1.5 00 1.4 1.4 0 0.0
- 4-Birds 0.0 00 2 05 0.5 1.0 0 / 0.0 1.4 1.4 0 5.3 5.3
5-Clouds, Dust, etc. 0.0 0.5 00 0 2 2 o.0 2.7 0 0.0
6 Insuffic. Into. 6 6 8.0 0.0 Y.0 17 8.5 0.0 9 0 9 12.2 0.012.2 / 5.3 5.3
7-Psychological 2 / 3 2.7 1.3 4.0 2 4 1.0 2.0 0 od 0000 0 0.0
- 8-Unknown 14 0 14 18.7 18.733 0 33/6.6 0.0 16.6 11 1114.9 0.014.9 5 26.3 00 26.3
90ther 4 1.3 4.0 5.3 7 2 9 3.5 1.04.5 11.70.01.4 2 0 210.5 0.0 10.5
- Total 51 247568.082.0 100. 133 6619966833.2100. 47 277463.536.5100. 12 71963.236.8100.
SUNLIGHT ON 01L RIGHTER THAN LIKE MooN DULLER THAN MooN
Per Cent Number Num ber
Evaluation Certain Doubthul Total Doubtful Dou btful
0-Balloon 0 4 0.0 571 15 24 39 3.9 6.210.1 0 2.6 0.0 5 4 9 9.3 7.4 16.7
1-Astronomical 0 / 0.0 14.3 102 56 160 26.5 15.141.6 3 9 12 7.9 23.7 31.6 6 1/ 17 11.1 20.4 31.5
2-Aircraft 0 0.0 00 22 44 66 5.7 114 17.1 8 2 10 21.1 5.3 26.9 3 5.6 11.2
3-Light Phenom. 0 0 D 0.d 00 6 9 1.6 09 2.4 2 3 2.6 5.3 7.9 1 / Z 1.1 1.9 3.8
4-Birds 0 0.0 0.0 0.3 0.3 0 00 00 / 2 1.91 1.9 3.8
5-Clouds, Dust, etc. / 14.3 143 0 0.0 D 0 ad 0.0 a0
6-Insuffic. Info. 0 21 2/ 5.5 0 0.0 0.0 3 D 5.6 S.6
7-Psychological 0 0.0 0.0 3 0 0.8 / 2.6 2 aa 3.7
8-Unknown 1 0 / 14.3 0.0 71 071 18.4 1/ 28.9 10 le 18.5 0.018.5
9-0ther 0 00.00.0 0.0 96 152.3 1.63.9 0 00 0.0 3 0.0 5.6 5.6
Total 5 2 771.428.6100.25013538564.935.1 100. 24 14 3863.236.8100. 2925 5453.7 46.3100.
BARELY VISIBLE NoT S TATED
Number Num ber Per Cent
Evaluation Total Certain Doubtful Doub thul Total Doubtful Certain Doubtful Total Dou btful Dou biful
0-Balloon / 1 / 2 125 12.5 12.5 25.0 25.0 159 89 8 9 248 9.5 9.5 5.3 14.7
1-Astronomical / 0 0 1 / 12.5 0.0 232 150 150 382 382 13.7 13.7 8.8 225 225
2-Aircraft / / 2 125 12.5 12.5 25.0 211 2.11 138 349 3449112.4 12.4 8.1 8.1 20.5 20
3-Light Phenom. 0 0 00 0.0 23 // 34 14 0.6 2.0
4-Birds 0 0 0.0 00 10 6 16 0.6 1.4 1.0
5-Clouds, Dust, etc. 0 00 0.0 2 4 60.1 0.2 0.3
6-Insuffic. info. 2 0 2 250 0.0 25.0 202 0 20211.9 0.0 11.9
7-Psychological 0 0.0 ao 29 3 32 /.7 5.2 1.9
&-Unknown / 0 125 a0 12.5 340 0 34028.1 0.020.1
9-0ther 0 0 00 0.0 00 72 14 86 4.2 0.8 5.0
Total 6 28 75.0 25.0 100.V280 415 169575524.5100.
211

-
TABLE A167 EVALUATION OF OBJECT SIGHTINGS FOR ALL YEARS 1
BY LIGHT BRIGHTNESS
SUNLIGHT ON MIRROR SUNLIGHT ON ALUMINUM SUNLIGHT ON PASTER SUNLIGHT ON STONE
Number Per Cent Number
Evaluation Doubtful Doubtful Total Certain Doubtful Total Doub*ful Total Certain Doubtful Total Doubtful Doubthul
0-Balloon 3 5 33 3.9 8.2 27 17 44 15.1 9.524.6 11 7 18 15.7 10.0 257 2 12.5 6.2 18.7 -
1-Astronomical 12 11 23 9.7 18.037.7 7 15 3.9 4.5 8.4 9 2 /1 12.9 2.9 15.8 0 a.d 6.2 6.2
2-Aircraft 7 2 9 115 3.3 14.8 32 27 59/7.9 15.133.0 6 10 16 8.6 14.3 23.9 3 0.0 18.8
3-Light Phenom. / / 1.6 1.6 3 0.0 1.7 0 1 I 00 1.4 0 0.0
4-Birds 0 0 0.0 0.0 / 2 0.6 0.6 1.2 1.4 1.4 6.2
5-Clouds, Dust, etc. 0 0 0.0 / 0.6 0.6 2 0.0 2.9 2.9
6 Insuffic. Info. 3 0 3 4.9 15 15 8.4 0.0 9 12.9 / 0 6.2
7-Psychological 1 3 3.3 1.6 4.9 2 2 4 1.1 1.1 2.2 ad 0.0 00 0 0 0.00.00.0
8-Unkuno wn 14 28.0 0.023.0 28 0 2815.6 0.0 15.6 11 1/1 15.7 0.0157 5 31.2 0.031.2 -
9-Other 2 3 1.6 3.3 4.9 62 81 3.4 1.1 1 14 0.0 1.4 202/2.50.0/2.5
Total 42 19 6168.9 21.1100. 1196017966.533.5 100. 47237067.132.9100. 10 616 62.537.500.
SUNLIGHT ON 012 BRIGHTER THAN MooN LIKE Moa DULLER MooN 1
Number Per Cent
Evaluation Certain Doubthul Doubtful Total Certain Doubtful Dou btful
0-Balioon 4 66.7 14 21 35 4.2 6.3 10.5 / 0 - 2.9 0.0 5 3 8 10.2 6.1 16.3
1-Astronomical 0 / 0.0 16.7 82 48 130 24.6 14.4 39.0 3 8 1/ 89 13.5 32.3 6 14 12.2 16.3 28.5 11
2-Aircraft 0 0.0 0.0 20 41 6.0 12.3 18.3 5 2 7 14.7 5.9 20.7 3 3 6 6.1 12.2
3-Light Phenom. 0 0 0.0 0.0 6 3 9 18 0.9 2.7 3 2.9 5.9 5.8 / 2 2.0 2.0 4.0
4-Birds 4-Birds 010 0 0 0.010.00.01 0.0 C 0.3 0.3 0.0 0.3 0 00 0.0 1 / 0.d 2.0 2.0
5-Clouds, Dust, etc. 01 / 0.016.716.7 0.0 16.7 16.7 0 0.0 00 00 1
6-Insuffic. info. 00 0 0.0000.0 20 020 6.0 0.0 0 0 0.0 30 3 6.1 6.11
7-Psychological 00 0 0.d00 o.0 0.0 2 0.6 / 1 0.0 od 2.9 0 2 4.1 4.1
&-Unkno wn &-Unknown 0 0 0.00.00.061 0.0 61 061 18.3 0.0 11 011 32.4 0.032.4 100 10 20.4 0.020.4
9-0ther 00 0 0 0.0000.096 15 0.0 0000 9 6 15 2.7 1.8 4.5 00 0 00 00.0 0.0 0.00.0033 0.00.00 3 3 1d 6.1 1.0 6.1 6.1 6.1 1 1
Total Total 4 2 6 66733.3100. 215119 334 64.4 35.6100. 21 13 314 61.8 31.2100.282149 57.1 42.9100. 4 2 666.733.3100.21511933464.435.6100. 21 1331461.8 31.2100.282149 57.1 42.9100.
-
BARELY V/SIBLE VISIBLE NoT StaTeD Nor StaTED
Number Number Per Cent Per Cent Num ber
Evaluation Certain Total Doubthul Totai Doubtful Total Doubtful Doubthu Total Dou btful
0-Balloon / 1 2 14.3 26.6 140 79219 79 219 9.7 5.5 15.2 15.2
1-Astronomical / 0 / 14.3 14.3 0.0 14.3 154118 272 10.7 8.2 18.9
2-Aircraft / 2 14.3 28.6 191/20311 13.2 8.3 21.5
3-Light Phenom. 0 0.0 0.0 21 29 1.5 0.6 2.1
4-Birds 0 0.0 00 0.0 10 0.7 0.4 1.1
5-Clouds, Dust, etc. 0 0 0.d 0.0 0.0 2 H 6 0.1 0.3 0.4 4
6-Insuffic. into. 1 0 / 14.31 0.0 143 188 0/88 13.0 0013.0
7-Psychological O 0 0.0 a.0 29 3 32 2.0 0.2 2.2
&-Unkuno wn / 0 14.3 1.0 14.3 293 20.3 0.0
9-0ther 0 0.00.0 0.0 88 11 77 4.6 0.8 5.4
Total 5 2271.428.6100.1094349144375.824.2100.
212

abstracts of reports of sightings. It was believed at the time, and later
would serve as a guide for the more sophisticated treatment involving
statistical methods.
Also, it was anticipated that any patterns or trends that might be
significant information relating to the characteristics of ers11
descriptions reported, are discussed in sections entitled - Frequency and
and "The 'Flying g Saucer' Model".
Le18M Frequency and Percentage Distributions by Characteristics
The original conception of this study assumed the availability of
sufficient data to describe adequately the physical a ppearance, maneuver
characteristics, range, direction, and probable path of
objects observed. However, familiarity with the data, acquired during the
14

---
TABLE A168 LOCATION OFOBSERVERS DURINGSIGHIING BY MONTHS
EOL ALL SIGHTINGS ALL YEARS
JANYARY FEBRUARY MARCH APRIL
Number Per Cent Number
Const Variable Const Variable Total
a
1'IN CAR 16 17 11.8 0.7 125 9 2 11 9.7 2211.9 / 11 60 0.6 6.6 24 3 27 12.0 1.5 13.5
2OUTDOORS 29 4 33 2.3 2.9 24.3 23 / 24 2x7 1.7 25.8 62 2 64 323 1.2 38.5 90 94 35.0 2.0 47.0
³IN PLANE 31 2 33 228 15 24.3 27 27 29.0 0.0 29.0 20 0 20 0.0 12.0 16 0 16 8.0 8.0
IN BLDG. 17 12.5 0.0 12.5 O 2 2.2 0.0 2.2 22 0 22 B.3 0.0 13.3 20 0 20 10.0
5
6
7.
&
$OTHER 0 2.2 0.0 2.2 5 0 5 0.0 5.4 3 0 3 1.8 0.0.1.8 0 0 2.0 0.0
NOT STATED 33 ,33 24.3 0.024.3 24 0 2y 25.8 0.0 25.846 046 277 0.0277 43 0 43 21.5 0.021.5
Total 129 7 136 93.9 5.1100. 90 93 96.9 3.2100. 163 3 166 98.2 1.8100. 193 7 200 96.5 3.5 Vo0.
MAY JUNE JyLy AUGUST
Number Per Cent
Variable Const /ariable Total
0.
1.IN CAR 15 0 16 77 0.0 7.7 21 2 23 9.2 0.9 10.1 72 12 84 7.8 1.3 9.1 61 3 64 11.7 0.6 12.3
2OUTDOORS 89 5 94 35.9 2.6 48.5 123 3 126 53.9 1.3 55.2436 4440 46.9 0.4 47.3266 8 274 51.1 1.5 5.2.6
3.IN PLANE 34 17.5 0.0 25 0 11.0 0.0 11.088 / 89 9.5 0.1 9.6 37 2 39 7.1 0.4 7.5
4 IN BLOG. 0 8 4.1 0.0 8 0 83.3 0.0 3.5187  3 90 9.4 0.3 9.7 38 9 42 7.3 0.8 8.1 P 3.5 0.0 3.5 87 3 90 9.4 0.3 9.7 39 H Y2 7.3 0.8 8.1
5-
6
7.
&
9.OTHER 0 2 1.0 0 2 1.0 0.01.0 2 0.0 1.0 2 O 2 2 0.9 0.0 0.0 15 0 00 1.6 8 8 1.5
NOT STATED NOT STATED 41 041 21.1 21.1 0.021.1 44 0.021.1 44 14 H4 19.3 0.0 19.3211 241 22.7 0.0 0 94 18.0 18.0
Total Total 189 5194 97.4 2.6100.223 2.6100.223 5228 2.2100. 909 909 20 929 97.8 2.2100. 504 17 521 96.7 3.3 100.
SEPTEMBER SEPTEMBEK OCTOBER NOVEMBER NOVEMBER DECEMBER DECEMBER
Number Number Per Cent Per Cent Per Cent
Const Variable Const Variable Total Total
0 a
1.IN CAR 1IN CAR 2 23 10.0 1.0 11.0 23 - / 24 12.0 0.5 0.5 12.5 10 10 4 H 14 6.1 21 2.4 8.5 25 7 32 14.9 4.2 4.2 19.1
2OUTDOORS 96 5 101 45.7 2.4 48.1 89 - 90 46.4 0.5 46.9 3 48 27.4 1.8 29.2 45 550 26.8 3.0 29.8
3.IN PLANE 26 0 12.4 0.0 12.4 27 27 0.0 14.1 34 34 28.7 227 45 1 46 26.8 0.627.4
*INBLDG. 11 2 13 5.2 1.0 6.2 25 26 13.0 0.5 13.5 33 0 33 20.1 0.0 20.114014 8.3 0.0 83
5
6
7.
&
OTHER - 0 0.5 0.0 0.5 7 3.6 2 2 1.2 0.0 1.2 1 0.0 0.6
NOT STATED 46 0 .46 21.9 0.021.9 18 18 0.0 9.4 33 23 20.1 0.020.1 25 25 14.9 0.014.9
Total 201 9 210 95.7 4.3100.189 3 192 98.4 1.6 100.157 7 164 95.7 4.3100.155 13168 92.3 7.7400.
213

-
TABLE A169 LXATION OE OBSERVERS DURING SIGHTINGS By MONTHS
FOR ALL SIGHTINGS 1947 -
JANUARY FEBRUARY MARCH APRIL
Per Cent Number Number Per Cent
Variable Const Total Variable Const Variable Total Total
a 1
'IN CAR
2OUTDOORS
3IN PLANE DATA DATA
IN BLDG. 1
5
6
7. x0 N
& 1
3OTHER
NOT STATED
Total
1
MAy JUNE July AUGUST
Number Per Cent er Cent Number 1
Total Variable Variable Const
0.
1IN CAR 1 7.7 77 15.4 0 109 10.9 2 12.5 0.0 12.5
?OUTDOORS 6 0 46.2 27 0 0.0 49.1 7 43.8 43.8
3·IN PLANE 3 0 323.1 0.0 23.1 11 011 20.0 3 18.8 0.0 19.8
4IN BLOG. DATA 0 d 0.0 01 1,9 0.0 1.8 / 0 6.3 6.3
5-
6 P 1
7.
&
9 OTHER 0 0 0.0 0.0 00 0 0 0 20 0.0 0.0 0 0 0.0 0.0 0.0 0.0
INOT STATED 2 2 0 215.4 0.015.4 10 0 1018.2 0.018.2 3 0 3 18.8 0.018.8 -
Total Total 12 12 1 1392.3 7.7100. 55 0 55400.0 0.0100.16 1 1392.3 7.7100. 55 0 55400.0 0.0100. 16 016400.0 0 16100.0 0.0900. 0.0100.
-
SEPTEMBER OCTOBER NOVEMBeR NOVEMBER DECEMBER
Number Per Cent Per Cent Number
Const Varabie Total Total Variable Total Const Variable
0
1IN CAR 0 O od do 8 0 8 42.1 42.1 0.0 o 33.3 33.3 - 0 - 20.0 0.0 230 2à0
?OUTDOORS 2- 0 3 2 50.0 540 0.0.50.0 4 0A 8 8 421 N21 0.0 AD H11 42.1 O 0 AN 0.0 0.D - 1 0 20D 20D 00 200 200
3-IN PLANE 1 1 16.7 0.016.7 0 0.d 0 0D 0.0 3 600 60.0
4IN BLDG. ol 0.00.0 0 0.0 - 33.3 0.0 33.3 O
5
6
7.
&
9 OTHER 0 00.0 0020 0 0 0.0 0.0 0.0 1 I 33.3 33.3 O 0.0
NOT STATED 2 233.3 0.033.3 3 3 15.9 0.0 15.9 0D 00 0 0.0 ao
Total 6 100.0 3 0 0.0400. 5 100.01 0.0100.
214

-
i
TABLE A170 LOCATIONOF OBSERVERS DURING SIGHTINGS BY MONTHS
FOR ALL SIGHTINGS 1948
JANVARY FEBRUARY MARCH AeRIL
Number Per Cent Number
Const Variable Total Variable
a
IM CAR - 6.3 00 0 0 0.0 ao 00 O 0s a0
2OUTDOORS 1 - 6.3 6 0 0.0 66.7 2 222 ao 22.2 0 14 77.8
3IN PLANE 2 5 189 12.5 31. 0 III 0.0 II.I - - 11.0 11.1 3 o 3 16.7 0.0
*IN BLDG. 0 5 31.3 0.0 11.0 U. - 0 11.1 11.1 - 5.6 5.6
5 a
6
7.
&
9 OTHER 0.0 02 O 0.d 000.0 0 0.0 0.0 0.0 0.0 a0
NOT STATED 0 4 25.2 0.0 25.0 1 11.11 0011.1 5 55.6 0055.6 0 0.0 0.0
Total 14 2 16 81.2 18.8100. 9 0 9100.0 0.0100. 0 100.0 0 18 180.0
MAY JUNE JuLY AUGUST
Number Number Per Cent Per Ceni
Variable /ariable Total Const
0
0 1In CAR - 9.1 ao / 16.7 a0 167 3 77 2.7 0 27.3 0.0
2OUTDOORS 0 5 45.5 0.0 45.5 5 0 83.3 ao 17 43.6 2.6 46.2 9 8 72.7 0.072.7
3IN PLANE O 4 36.4 36.4 0 0.0 00 5 5 12.8 12.8 0.0 0.0 0.0
*IN BLDG. FIN 0 0 010.01 0.000 00010.0 0.00.0 91 09123.1 0.0 23.11 0001 0.0 0.0 00 O 0 0.0 00 0.0 9 23.11 23.1 0.000
5. 5-
6
7.
8 &
9.OTHER 9OTHER O 0.0 0.0 0 0.0 0.0 0.0 1 0 1 2.6 00 2.6 00 2.6 00.0 0.0 0.0
NOT STATED - 9.11 0.0 9.1 0 0.0 0.0 0.0 3 3 2.7 2.7 0.07.7 0.0 7.7 0 0.0 0.0 0.0
Total 11 O 11 V00.0 II Voo.0 6 0 100.0 0.010.38 0.0100.38 1 39 97.4 2.6100.11 2.6100. 11400.0 0.0100.
SEPTEMBER 5 EPTEMBER OCTOBER NOVEMBER DECEMBER
Number Number Per Cent Number
Variable Total Variable Total Const Total Const Variable
0 a
1IN CAR IN CAR 0 0.D O.D 00 as 2 0 2 0.06.7 0.0 6.7 1 a0 50 5.0 6 - 7 21.4 21.4 3.6 25.0 25.0
2OUTDOORS 5 0 5 62.5 0.062.5 13 114 43.3 3.346.6 8 - 9 40.0 5.045.0 10 1I 35.7 3.6 39.3
3IN PLANE 1 12.5 0.012.5 3 10.0 0.010.0 5 5 25.0 0.0 0 7 0.0
*IN BLDG. 0 O 0.0 00 8 26.7 0.026.7 4 20.0 2 7.11 0.0 7.1
5
6
7.
&
3 OTHER 0 0.0 0.0 00 1 33 00 33 0 0 0.0 0.0 0 0.0 0.0
VIOT STATED 2 0 225.0 0.025.0 2 02 6.7 0.0 6.7 1 50 0.05.0 1 0 1 3.6 0.0 3.6
Total ·8 0 8400.0 0.0100. 29 1 3096.7 3.3400.18 22090.010.0100.26 2 28 92.9 7.1100.
-
215

-
-
TABLE A171 LOCATION OF OESERVERS DURING SIGHTINGS BY MONTHS
FOR ALL SIGHTINGS 1949
JANYARY FEBRUARY MARCH APRIL
Number Per Cent Per Cent Number
Const Varable Total Variable Total Total Const Variable Variable
a -
IN CAR 1 9 13.6 1.7 15.3 3 16.7 a0 2 - 3 3.8 1.9 5.7 9 - 10 19.1 2.11 21.2
2OUTDOORS 0 18 30.5 0.0 305 9 50D 0.0 50.0 36 36 69.2 0.069.2 19 - 20 yQ4 2.1 42.5
2IN PLANE O 11.9 0.0 11.9 3 0 16.7 00 167 H 4 77 0.0 7.7 2 0 2 4.3 4.3
IN BLDG 10 0 10 16.9 0.0 16.9 O 0 o 0.0 7 7 13.5 0.0 13.5 4 H 85 0.0 8.5
6
7.
8 I
OTHER 0 0 0.0 0.0 0.0 2 2 II. 0.0 141 0 0 0 0.0 0020 0 0.0 0.0 0.0
NOT STATED 15 0 15 25.4 0.0 25.4 5.6 0.0 5.6 2 0 2 3.8 0.0 3.8 I 0 |I 23.4 0.023.4
Total 58 1 59 98.3 1.7100. 18 018100.0 0.0 100.51 152 88.1 1.9100. 45 2 H7100. 4.3100.
1
MAY JUNE JuLy AUGUST
Number Per Cent Number Number Per Cent |
Variable Total Const /ariable Total Const Variable Const Variable Total
0
1IN CAR - 0 2.2 0.0 2.2 3 12.0 120 4 H 20.0 0.0 200 11 0 11 21.2 0.0 212
OUTDOORS 30 3 33 66.7 6.7 73.4 18 0 18 72.0 0.0720 9 45.0 0.0 0 32 61.5 61.5
3IN PLANE 3 0 67 0.067 / 0 I 4.0 0.0 4.0 1 — 5.0 0 0.0 0.0
*INBLDG. 0 0 0.0 0.0 0.0 0.00.0 0 0.0 0
5 5
6 1 |
7. 7.
&
9OTHER OTHER 0 0.0 0.0 0.0 0.0 0.0 0 0.0 0.0 ad 0 o 0.0 ad 0 0 0.0 0.0 0.0 0 0 0.0 0.0 |
NOT STATED 8 0 17.9 0.017.8 0.0 17.8 3 0 312.0 0.0 12.0 6 0 6 30.0 0.030.0 9 0 9 17.3 00 17.3
Total 42 3 45 93.3 93.3 67100.25 67100. 25 0 25400.0 0.0100.20 0 20400.0 0 25400.0 0.0100.20 0 20400.0 0.0100.52 0 52100.0 0.0100.
1 1
SEPTEMBER SEPTEMBER OCTOBER OCTOBeR NOVEMBER DECEMBER ECEMBER
Number Per Cent Number Number Per Cent
Const Total Variable Total Const Varable Total Variable Const Totai
0 -
IN CAR INCAR 0 33.3 00333 - 0 7.7 0.0 77 2 2 5.9 00 7 1 7 25.9
2OUTDOORS 0 0 2 4/7 66.7 0.0 66.7 117 5 < O 38.5 301 0.0 38.5 AA 39.5 9 9 26.5 2/.5 0.026.5 6 1 3 a 22.2 22.2 11.1 11 33.3 222
3IN PLANE 0 O 0.0 0.0 0.d 3 3 23.1 0.0 23.1 6 6 17.6 0.017.6 H 0 4 14.9 14.8
IN BLDG 0 O 0.0 0.0 0.0 0 O 0.0 0.0 0.0 0 2.9 2.9 0 0.0
5
6
7.
&
OTHER 0 0.0 00 0.0 0 0 0 0.0 0.0 0.0 0 2.9 0.0 2.9 0.0 0.00.0
NOT STATED 0 0 0.0 0.0 00 4 0 430.9 0.0 30.9 15 15 44.1 0.044.1 7 0 1 25.9 0.025.9
Total 3 0 3400.0 0.0100.13 0 13100.0 0.0100. 34 0 00.0 0.0100.24 3 27 88.9 11.1100.
216

-
-
TABLE A172 LOCATION OE OBSELVERS DURING SIGHTINGS RY MONTHS
FORALL SIGHTINGS 1950
JANUARY FEBRUARY MARCH APRIL
Fer Cent Per Cent Number
Variable Variable Total Const Total Variable Total
a
'IN CAR 2 0 105 0.0 10.5 4 12.1 0.0 2.1 5 5 6.9 0 0.0
2OUTDOORS 2 - 3 10.5 5.3 5.9 16 15.2 3.0 18.2 0 18 25.0 0.0 0 8 27.6 0.0.27.6
3IN PLANE 1 o 42.1 0.042.1 4 04 12.1 0.0 12.1 8 0 8 11.1 0.8 11.1 5 17.2 0.0
IN BLDG. 0.0 0.0 0.d 1 01 3.0 0.03.0 5 6.9 0.06.9 4 0 13.8 0.0 13.8
5
6
7.
&
OTHER 0 0.0 0.00.0 1 0 13.0 0.0 3.0 2 0 22.8 0.02.8 0 00.0 0.0 0.0
NOT STATED 6 o 6 3/.6 0.031.6 17 01751.5 0.051.534 0 3447.2 0.047.2 12 0 1211.4 0.041.4
Total 18 1994.7 53400.32 13397.0 3.0100. 72 0 72100.0 0.0100.29 0 29400.0.0.0400.
MAY JUNE Jucy AUGUST
Number Number Per Cent
Variable Total Const Total Const Totai
0-
IIN CAR 2 0 2 10.0 0.010.0 0 14.3 0.014.3 4 5 9 16.7 20.8 37.5 - O 4.0 0.0
2-OUTDOORS e 0 0.00.0 / 0 1 14.3 0.0 H.3 H 16.7 0.016.7 10 40.0 0.0 40.0
3·IN PLANE 2 210.0 0.010.0 2 0 28.6 0.028.6 2 8.3 0.08.3 3 0 3 0.0 12.0
*IN BLDG. O 00.0 0.00.0 0 0.8 0.0 0.0 2 8.3 0.0 8.3 8.0 0.0 8.0
5 5-
6
7.
&
9OTHER 0 0 00.00.00.0 0 0 0 00.0 0.00.0 0 0 00.00.00.0 1 0 0 0.0 0.00.0 1 0 1 4.2 0.0 4.2 3 0 3 12.0 0012.0 0012.0
NOT STATED 16 01680.0 0.080.0 3 16 01680.0 0.080.0 3 0 3 42.9 0.042.9 0 3 42.9 0.0 42.9 0 625.0 0.025.0 6 0 6 24.0 0.024.0
Total 20 0 20400.0 0.0100.7 20 0 20400.0 0.0100.7 0 7400.0 0.0180.19 52479.2 20.8100.25 0 7400.0 0.0100.19 524 79.2 20.8100.25 0 25400.0 25400.0 0.0100.
SEPTEMBER OCTOGER OCTOBER NOVEMBER DECEMBER
Number Per Cent Per Cent
Const Variable Variable Const Total Total
0 0.
IIN CAR 4 H 4 30.8 0.0.30.8 J 10.0 10.0 0 O 0 0.0 6 6 3 3 9 19.3 19.3 9.7 29.0
2OUTDOORS ?OUTDOORS 2 0 0 15.4 15.4 0.0.15.4 0.015.4 50.0 00 50.0 5 C 21.7 21.7 0.02.7 0.0 6 6 A.3 A9.3 0.019.3 19.3
3·IN PLANE 3 23.1 0.023.1 ] 0 10.0 0.0 $ 0 8 34.8 0.0 3 9.7
4IN BLDG. 1 0 7.7 0.0 17 0 10.0 5 21.7 0.021.7 2 2 6.5 0.0
5
6
7.
&
9OTHER 1 0 7.7 007.7 0 I 10.0 0010.00 0 00.0 0.00.0 0 0 0.0
NOT STATED 2 0 15.4 0.015.4 1 10.0 0.0 10.0 5 0 521.7 0.021.7 m 0 11 35.5 0.035.5
Total 13 013100.0 0.0100.10 0 10400.0 0.0100.23 0 23100.0 0.0100. 281 3 31 90.3 9.7100.
I
--
217

-
1
TARLE 8173 LOCATION DE OBSERVERS DURING SIGHTINGS By MONTHS
FOR ALL SIGHTINGS 1951 -
JANVARY FEBRUARY MARCH AeRIL
Number Per Cent Number Per Cent Number Per Cent
Const Vanable Total Variable Variable Const Total Vanable Varable Total
a -
IN CAR 2 0 7.4 007.4 - 2 3 6.7 13.3 20.0 0 0.0 0.0 - 33.3 0.0
OUTDOORS 2 8 22.2 7.429.6 0 2 133 0.0 13.3 3 - 4 50.0 16.7 66.7 2 0 66.7 0.0
3IN PLANE 0 9 33.3 0.033.3 a 60.0 0.060.0 0 16.7 0.0 16.7 0
*IN BLDG / 3.7 0.0 3.7 0 0.0 0.0 0.0 0 0 00 0.0 1
5
6
7.
& 1
$OTHER 0 1 3.7 0.0 3.7 - 0 6.7 0.06.7 0.0 0.0 00 0 0.0 0.00.0
NOT STATED 6 22.2 0.022.2 0 0D 0.0 0.0 1 1 16.7 0.0 16.7 0 0 0.0
Total 25 22792.6 7.4100. 13 2 15 86.7 13.3100. 5 6 83.3 16.7100. 3 0 3100.0 0.0100. -
MAY JUNE JyLy AUGuST
Number Number Nunber Per Cent Number Per Cent
Const Variable Total Const Variable Corst Variable Total
,0.
1IN CAR 0 D 0 0.0 0.0 00 0.0 0.0 11.1 11.1 3 4 15.0 5.0 26.0
2OUTDOORS 3 0 600 0.060.0 100.0 0.01000 0 2 22.2 0.0 12 13 600 5.0 65.0
3.IN PLANE 0 01 0.0 00 0.00.0 0 11.1 0.0 U.I 2 2 10.0 10.0
*IN BLDG. 1N 810G.1 010 01 0.0 0.0 0.01 0 0 9100 0.0 0.01 41 0 4144.4 0414.4 11 01 11 5.0 0.0 5.0 0l 0.0 0.00.0 0 O 4 0 H 44.4 00 4H.4 0 5.0 0.0 5.0
5. 5-
6
7. 7.
8 --
9OTHER 0 0 00.0 0.0 0.0 0.0 000 0.0 0.0 000 0.0 0.0 0 0.0 0.0 0.0 0.0 000.0
NOT STATED 2 0 40.0 0.040.0 C 0.0 0.0 0.0 0 11.1 0.0 11.1 0.0 0000 0000
Total 5 0 5100.0 0 5100.0 0.0100. 0 1100.00.0100.090 1900.0 0.0100.0 9 9 100.0 0.0100.18 2 2090.0 10.0100.
SEDTEMBER OCTOBER NOVEMBER DECEMBER
Number Per Cent Per Cent Number
Const Total Const Variable Variable Total Const Variable
0.
IN CAR - - 2 5.6 11.2 2 0 7.1 0.0 0.0 2.1 / 3 11.8 11.8 5.9 5.9 17.7 17.7 0 27.3 00 27.3 27.3
2OUTDOORS oc U ^ 0 4 H 21.2 0.0 40 22.2 32.2 15 A 15 621 0.0 AA 53.6 H N 0 4 23.5 23.5 I 36.4 A 36.4
3 IN PLANE 0 9 50.0 0.0 500 5 17.9 0.0 17.9 7 G 41.2 20 3 3 27.3 0.0 27.3
4IN BLDG 2 0 11.1 0.0 11.1 - 3 1.1 3.6 10.7 0 0.0 5.9
5 1
6
7.
8
OTHER 0 0 0.0 0.0 00 3 0 3 10.7 8.0 10.7 0 0.0 0.00.0
NOT STATED 1 0 15.6 0.05.60 0 0.0 11.8 0.011.8 - 0 9.11 0.0 9.1
Total 17 11894.45.6100.27 1 28 96.4 3.6100.16 1 17 94.1 5.9100. I1 0 111000 0.0100.
218

I
TABLE A174 LOCATION OF OBSERVERS DURING SIGHTINGS 84 MONTHS
FOR ALL SIGHTINGS 1952
JANVARY FEBRUARY MARCH APRIL
Number Po uent PerTent Number Per Cent Per Cent
Const Variable Variable Total Const Total
a
1IM CAR 3 20.0 00 20.0 0 - 5.6 5.4 3 0 11.1 0.0 14 2 16 13.6 1.9 15.5
2OUTDOORS 2 1 3 13.3 6.7 20.0 / 0 - 5.6 0.0 5.4 3 - 4 11.1 3.7 14.8 47 50 45.6 2.9 48.5
3IN PLANE H 0 4 26.7 0.0 10 55.6 0D 6 22.2 22.2 0 5.8 0.0 5.8
IN BLDG 1 6.7 0.0 0 0 9 33.3 a0 11 10.7
5
6
7.
&
$OTHER 0 2 0.0 13.3 1 54 5.6 / 1 3.7 3.7 0 0.0 0.0 0.0
NOT STATEO 2 2 00 13.3 0 5 27.8 0.0 27.9 4 0 H 14.9 ao 14.8 20 19.4 0019.4
Total 14 1 15 93.3 6.7 100. 18 0 18 100.0 0.0100.26 I 27 96.3 3.7 98 5 103 95.2 4.8100.
MAY JUNE JULY AUGUST
Number Per Cent Number
/ariable Variable Total Const
0.
IIN CAR 0 11 9.7 0.0 15 - 16 8.5 0.6 9.1 54 7 61 6.9 0.9 7.8 41 2 43 10.3 0.510.8
2OUTDOORS 51 2 53 45.1 1.8 46.9 92 95 52.3 1.7 54.0 377 3 380 48.2 0.4 48.6 197 7 204 49.4 1.851.2
3IN PLANE 25 0 25 22.1 00 22.1 19 10.8 0.0 10.8 68 69 8.6 0.1 8.7 29 2 31 7.3 0.5 7.9
4IN BLDG. 4IN BLDG. 8 0 87.1 0.0 7.1 7.1 0 8 4.5 0.0 4.5 71 3 74 9.0 9 4.5 4.51 71 3 74 9.0 0.4 9.4 34 0.4 9.4 34 4 38 8.5 1.0 9.5 H 38 8.5 1.09.5
5-
6.
7.
8 8
9OTHER 9.OTHER 0 2 1.8 0.0 1.8 0 21.8 0.0 1.8 2 0 1.1 00 1.1 13 13 1.7 0.0 1.7 0 5 0.0 1.3 0.0 1.3
NOT STATED 14 0 14 12.4 014 12.4 0.0 12.4 36 0.0 12.4 36 0 36 20.4 0.020.4185 0185 23.5 0.023.5 76 76 19.1 0.019.1
Total VI/ 2113 98.2 2 113 98.2 1.8100.172 H 176 97.7 97.7 2.3100.768 14782 98.2 98.2 1.8100. 392 15 397 392 15 397 96.2 96.2 3.8400. 3.8100.
SEPTEMBER OCTOBER OCTOBER NOVEMBER NOVEMBER DECEMBER DELEMBER
Number rer uent rer Cent Number Per Cent
Const Total Variable Total Variable Total Variable Const Total Variable
0.
1IN CAR 1IN CAR 15 / 1 16 9.3 0.6 9.9 9 1 10 9.9 1.1 1.11 10.9 7 7 7.5 3.0 10.5 2 3 3 5 3.0 4.5 7.5
2OUTDOORS 90 95 49.4 3.1 52.5 43 46.7 00 46.7 19 2 21 28.3 3.0 31.3 18 27.3 1.528.9
3IN PLANE 12 0 12 7.4 0.0.7.4 15 0 15 16.3 11.9 0.011.9 25 124 37.9 1.539.4
4IN BLDG. 9 210 7.9 1.2 6.1 14 0 14 15.2 0.015.2 21 0 21 31.3 0.0 31.3 0 10 15.2 0.0 15.2
5.
6
7.
&
OTHER 0 0.0 00 2 0 2 2.2 0.0 2.2 0 0.0 0.0 0.0 / 0 1 1.5 0.0 1.5
NOT STATED 39 039 24.1 0.0 24.1 8 0 88.7 0.0 8.7 10 0 10 14.9 0.014.9 5 0 5 7.6 0.0 7.6
Total 154 8162 95.1 4.9100. 91 1 9248.9 1.1100. 63 4 6794.0 6.0100. 61 5 66 92.4 7.6100.
--
219

-
TARLE A 175 EVALVATION OF ALL SIGHTINGS FOR ALL YEAES BY COLDES REPOETED
FOR QUCATION OFSIGHTING. WHITE OR CLDWING WHITE OBJECTS I
5 SECONDS en Less 6-10 SECONDS 11-30 SECONDS 31-60 5CCONDS
Number Per Cemt Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total Doubthul Total Certain Doubtful Doubthul Tota
0-Bailoon 1 5 6 0.8 4.1 49 0 2 00 4.7 47 2 4 6 3.0 6.0 90 0 1 / 0.0 2.0
1-Astronomical -
36 40 76 29.3 32.5618 10 9 12 23.2 20.9 44.1 13 3 16 19.4 4.5 23.9 2 4 41 4.1 82
2-Aircraft 7 11 18 √2 8.9 146 4 9.3 11.6 209 I1 8 19 164 11.9 28.3 10 4 14 20.4 8.2 286
3 Light Phenom. 0 2 2 16 1.6 / 1 2.3 00 2.3 1 0.0 15 1.5 0 00 0.0
4-Birds 1 2 08 16 0 00 2.0 00 D e 0.0 0.0 4 5 82 2.0 -
S-Clouds, Dust, etc. 102
0 00 00 e a.d o.d 0 00 0.0
6-insuffic. info. 3 0 3 2.4 00 24 o 70 7.0 5 0 5 7.5 0.0 7.5 6 0 12.2 0.0 12.2
7.Psychologi cal 0 00 2.0 0.0 0 1 1 00 1.5 0 00 0.0
&-Unknown 1λ 0 12 9.8 00 98 O 9 209 0.020917 0 17 25.4 0.0 25419 0 19 38.8 00 38.8 -
3-0ther 3 1 4 14 08 52 0 00 00 00od20 2 2000 3000 0 00 0.0
Total 63 6012351.248.8 100.27 164362.837.2100.50176774.625.4100.41 849 83.716.3100.
1
61 SESONDS-5 HNUTES 6-30 MINUTES OvER 30 MINUTES DURATION,NOT STATED
Number Per Cent Number Number Per Cent 1
Evaluation Certain Doubtful Total Certain Total Doubtful Doubtful Certain Total Dou btful
0-Balioon 20 19 39 16.1 15.3 3.4 21 20 41 124 16.5 33.9 16 3 19 20.0 3.8 23.8 17 9 16 10.4 5.5
1-Astronomical √ 4 15.9
9 4.0 32 7.2 13 √ 18 10.7 4.1 148 12 5 17 15.0 6.2 21.2 26 I5 41 16.0 9.2 252
2-Aircraft 12 9 21 97 7.3 11.0 4 14 18 3.3 11.6 14.9 √ 12 17 62 150 21.2 12 6 18 7.4 3.7 11.1
3-Light Phenom. 0 0 00 0.0 00 2 \ 1 17 41 5.8 0 0 0.0 0.0
4-Birds 0 O 0.0 00 0 0.0 00 0 / 0.6 0.0 0.6
5-Clouds, Dust, etc. 1 4 5 0.8 3.2 4.0 0 0.0 00 0 0.0 2 O 1.2
6 Insuffic. info. 6-Insuffic. Info. 0 5 4.0 4.0 0.0 9 100.00000210121/2 0.01.2
9 0 9 7.4 0.07.4 1 0 1 1.2 0.01.2 25 0 25 0 9 7.4 0.07.41 0 1.2 0.01.2 2 25 15.3 0.0 15.3 1
7-Psychological 7-Psychological / / 2 08 08 /.6 1.6 50 5 41 0.0 4.1 0 0 0 000.00.0 2 1 √ 0 5 41 0.0 410 0 0.0 0.00d 2 1 3 3 1.2 0.6
B-Unknown 39 3/.5 0.6 1.8 1.8
0 0.0 31.5 21 0 31.5 121 0 21 174 00 17.422 0 22 27.5 0.0 21.536 0 1740017.4220 22 27.5 0.0 21.536 0 36 22.1 0.0 22 0.0 22
9-0ther 4 0 0 4 3.2 3.2 00 32 2 0 21.70.01.7 404 32 5.000 5.011 011 5.00.0 5.0110 11 6.7
0.0 6.7 0.0 6.7 |
|
Total 87 3712470.229.8100.77 4412163.636.410060208075.0 25.0100V323116381.019.0100. 87 37 12470.229.8,00. 77 44 12163.636.410 60 2080 75.0 25.0100V32 3116381.019.0100.
TABLE A176 EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BY COLDRS FOR ALL YEARS B4 COLDRS REPORTED REPORTED
FOR OURATIONOFSIGHTING OURATION OF SIGHTING METALLIC OBJECTS 1
5 SECOND on Less 6-10 SECONDS 6-10 SECorrDS 7 11-30 SECONDS
31-60 SECONDS
Number Per Cent Number Per Cent
Evaluation Certain Certain Doubtful Total Doubtful Total Doubtful Total Total Doubtful Certain Dou btful
0-Balloon 0-Bailoon 2 1 1 3 77 3.8 11.5 0 0 2 2 0.0 105 105 / 1 4 4 5 1.8 71 8.9 8.9 2 4.4 8.8 8.8 - -
1-Astronomical 1 2 3 3 3.8 7.7 11.5 0 0 2 0.0 10.5 10.5 2 3.6 00 3.6 44 44
2-Aircraft 2 2 6 8 8 7.7 23.1 308 1 1 9 42.1 5.3 47.4 47.4 19 16 35 35 33.9 28.6 625 625 17 7 24 24 37.8 15.6 15.6 53.4
3-Light Phenom. / 1 0 3.8 0.0 00 3.8 28 / 00 0.0 5.3 1 1.8 10 1.8 / 0.0 2.2
4-Birds , 0 1 0.0 3.8 e 0.0 0.0 0 / 2.2
5-Clouds, Dust, etc. 0 0 2.0 0.0 00 0 0 0.0
6-insuffic. into. 0 1 380.0 3.8 1 / 5.3 0.0 5.3 0 1.8 0.0 1.8 2 2 4.4 0.044
7-Psychological 1 0 3.800 38 O 0 4.O 0.0 2 / 3 36 1.8 5.4 0 0.0 0.0.00
&-Unkuno wn 6 0 6 23.100231 4 0 4 21.1 0.0 21.1 9 16.1 0.016.1 0 10 22.2 0.0 22.2
9-0ther 20 2 77,0.077 0 0 0 0.0 0.0 00 0 e 0.00.0001 2.20.02.2
Total 17 9 2665:434.6100 13 6 19 68.4 31.6 100 34 225660.739.3 100.33 12 45 73.3 26.7 100.
61 SECONDs-5 MINUrES 6-30 MINUTES OvER 30 MINyres DURATION NeT STATED
Number Per Cent Number Per Cent Per Cent
Evaluation Certan Doubtful Total Certain Doubitful Doubt ful Doub tul Total Certain Doubtul Doubtful Totai
G-Balloon 21 10 31 17.6 8.4 260 26 12 38 25.7 11.9 37.6 11 4 15 19.3 7.0 26.3 16 20 12.6 3.1 15.7
1-Astronomical / 0 / 0.8 0.0 0.8 1 0.0 1.0 3 5.3 1.8 7.1 4 3 7 3.1 2.4 55
2.Aircraft 20 15 35 16.8 12.6 29.4 10 20 30 99 19.8 29.7 2 4 3.5 7.0 23 8 31 18.1 6.3 244
3-Light Phenom. 1 / 2 08 0.8 1.6 0 0.0 1.0 0 0.0 / 0.8 0.8
4-Birds 0 1 0.8 0.8 0 00 0.0 20 0.0 00 1 / 08 0.8
S-Clouds, Dust, etc. 0 0.0 0.0 0 00 3 5.3 0.0 53 0 00 0.0
6-Insuffic. info. 17 0 14.3 0.0 143 0 9 8.9 0.0 8.9 0.0 20 0 28 22.0 00
7-Psychological 1 0 1 0.8 0.0.08 / 0 1.0 0.0 2 35 0.0 3.5 / 0 1 0.8 08
&-Unkno wn 26 0 218 0.021.8 15 15 14.9 0.0149 2 27 474 0.0 47.429 0 29 22.8 00
3-0ther 23 5 1.7 2.5 4.2 42 4.0 2.0 6.0 02 2 0.0 7.1
Total 9029 119 75.6 24.4100 65 36 101 64.435.6100 48 95784.215.8100 111 16127 87.412.6 100
220

TABLE R177 EVALVATION OE ALL SIGHIINGS EORALL YEBRS BY COLORS REPORTEO
EOR RVRATION OF SIGHTING OBJECTCOLOR NOTSTATEO
5 SECONAS OR LEsS 6-10 SECONDS 11-30SECONpS 31-60 5ECONDS
Number Per Cent Number Per Cent
Evalustion Doubtul Doubtful Total Doubthul Certain
0-Balloon 0 , 00 2.5 2.5 2 5.0 10.0 0 1 00 2.2 2.2 3 5 9.7 6.5 16.2
1-Astronomical 15 11 26 37.5 27.5 65.0 8 1 9 400 5.0 45.0 6 7 13.3 2.2 15.5 2 3 6.5 3.2 9.7
2-Aircraft 4 6 5.0 150 2 100 10.0 200 5 11.1 8.9 20.0 12.9 6.5 19.4
3-Light Phenom. 0 0 2 2 10.0 00 O 0.0
4-Birds O 0 00 o 0.0
5-Clouds, Dust, etc. 2.5 0 0.0 00 0 / 2.2 0.0
6-Insuffic. into. 5 0 12.5 00 12.5 0 / 50 50 15.4 0.0 156 2 6.5 0.0 65
7-Psychological 00 20 0 0 0.0 0.0 00
8-Unknown 1 0 / 0.0 2.5 2 2 100 10.0 10 10 22.2 00 14 14 45.2 45.2
9.0ther 0.0 0.0 20 0 0.00.000 28 10 4.4 17.8 222 / 00 32 3.2
Total 26 144065.035.0100.146 20 70030.0100.301545-66.733.3100.25 63180.619.4100.
61SECONDS-5 MINUTES 6-30 MiNuTeS Oven 30 MinureS DURaTION NoT STATED
Per Cent Number Number Per Cent
Evaluation Certain Total Doubtful Dou btful
0-Balloon 14 √ 19 156 5.6 21.2 9 12 21 11.2 15.0 26.2 7 1 8.5 12.0 13 10 23 4.9 3.8 8.7
1-Astronomical 0 2 0.0 2.2 5 7 6.2 2.5 87 9 / 10 110 1.2 12.2 44 15 59 16.5 5.6 22.1
2-Aircraft 16 7 23 17.8 7.8 25.6 13 6 19 16.2 7.5 23.7 3 4 1.2 3.7 4.9 46 8.6 17.2
3-Light Phenom. 2 1 3 2.2 1.1 3.3 00 0.0 0 0 2 6 0.8 0.8 16
4-Birds 0 0 0.0 / 1.2 3 3.7 0.0 3.7 41 1.5 0.4 1.9
S-Clouds, Dust, etc. 0 0 0.0 0.0 1 / 0 / 1.2 1.2 30 3 3 3.1 0.0 37 1 0 1 0.4 3.1 0.0 37 0.4 000.4 0.4
6-Insuffic. info. 7 7 0.0 7.8 12 0 12 15.00.015.0 15.0 0.015.0 14 14 17.10.0 17.1 55 0 55 20.7 17.10.0 17.1 55 0 55 20.7 0.0 20.7 0.0 20.7
7-Psychological 0.0 0.0 0 2 2.5 0.0 2.5 2.5 3 37 0.0 3.7 3 1 4 1.1 0.4 1.5 3.7 0.0 3.7 3 1 4 1.1 0.4 1.5
& Unknown 8 Unknown 31 0 31 0.0 0.0 344 10 0 12.50.0 12.526 0 12.57 12.5260 2631.70031.7490498.40.0 18.4 26 31.70.0 31.749 0 49 18.4 0.0 18.4
9-0ther 50 5 0.0 5.6 7 0 z 8.8 0.0 8.8 4 1 54.9 1.2 6.1 19 1 20 7.1 0.47.5 5 4.9 1.2 6.1 19 1 20 7.1 0.4 7.5
Total 75 15 90 83.3 75 15 90833 16.7100. 59 21 8073.826.2 100.70 12 8285.414.6100. 213 5326680.1 19.9 100 16.7100. 2.59 21 8073.826.2100.70 12 8285.4 14.6100.213 5326680.1 19.9 100.
TABLE TABLE A178 EVALUATION OF ALL SIGHTINGS EOR ALL YEARS BY COLORS REPORTEP EVALVATION OF ALL SIGHTINGS EOR ALL YEARS BY COLORS REPORTEP
FOR DURATION OF SIGHTING, ORANGE OR GLOWINGORANGEOBJECTS ORANGE OR GLOWING ORANGE OBJECTS
5 SECONDS or on Less 6-10 5CCoNDS 6-10 5CCONDS 1/-30 5ECONDS 11-30 SECONDS 31-60 5ECoNDS 31-605ECONDS
Per Cent Number Per Cent
Evaluation Evaluation Doubtful Total Certain Doubtful Total Doubtful Doubtful Total Doubthul Total Certain Dou btful Total
0-Balloon O-Balloon 0 0 0.0 0.0 00 00 0.0 2 Q 0 1 / 3 3 4 5.3 15.8 15.8 21.1
1-Astronomical 17 17 9 9 26 33.3 17.6 50.9 9 1 10 37.5 4.2 417 4 4 8 8 18.2 182 364 2 4 105 10.5 21.0
2-Aircraft 3 6 6 9 5.9 5.9 11.8 11.8 17.7 11.7 6 8 25.0 8.3 33.3 2 9.1 9.1 9.1 9.1 182 18.2 2 4 4 10.5 21.0
3-Light Phenom. 0.0 0 0 00 0.0 0.00.0 6
4-Birds 0 / 0.0 2.0 2.0 0 0.0 4.57 0.045 53 5.3
5-Clouds, Dust, etc. 0 0.0 2.0 0 0.00.00.0 0.0
6-Insuffic, Into. 4 0 4 7.8 7.8 2.0 0.0 0.0 0.00.00.0 / 5.3 53
7-Psychological 1 0 20 0.0 2.0 0.0 00 450.0 45 / 5.3
B-Unkno wn 5 9.8 0.0 9.8 √ 5 20.8 0020.8 7 7 31.8 0.0 31.8 4 0 4 21.1 0.0 21.1
9-0ther 41 7.82.0 9.8 1 / 4.2 0.042011 0.04545 00 0 0.0 20
Total 3417 51 66.733.3100. 21 3 2487.512.5100, 15 7 2268.231.8 100. 12 7 1963.2 36.8 100.
61SGCONDS -5MINOTES 6-30 MINaTeS OVER 3O MINUTES DURATION NOT STATED
Per Cent Number
Evaluation Certain Total Doubtful Certain
0-Balloon 9 7.0 8.8 15.8 6 2 8 16.2 54 21.6 0 3 14.3 0.0 145 4 / 5 5.8 1.4 7.2
1-Astronomical 0 4 0.0 2.0 7.0 1 4 8.1 2.8 10.9 3 7 14.3 19.0 33.3 11 6 17 15.9 8.7 24.6
2.Aircraft 2 8 15 12.3 14.0 26.3 4 5.4 10.8 0 3 0.0 143 14.3 11 6 1715.9 8.7 24.6
3-Light Phenom. 2 3.5 00 3.5 6 16.2 1 4.8 0.0 4.8 0 1.4
4-Birds 0.0 0 o 0 0.0 0.2
5-Clouds, Dust, etc. 0 20 0 O 0.0 0.0
6-Insuffic. info. 6 0.0 10.5 / 2.8 2.8 0 7 0 10.1 0.010.1
7-Psychologi cal 1 2 3 18 3.5 5.3 0 O 0 0.0 1 / 0.0 4.8 48 1.4 1.4
8&-Unknown 150 15 24.3 0.0 26.3 12 0 12 32.4 0.0 324 J 5 23.8 2.0 23.9 16 016 23.2
9-0ther 30 35.3 5.3 2 0.0 5.4 10 4.8 1.4 5.8 72
Total 38 19 5766733.3 100. 30 7 37 81.1 18.9 100. 13 8 21 61.9 38.1 100.52 17 6975.4 24.6100.
22.1

-
1
TABLE A181 EVALVATION OF ALL SIGHTINGS FOK ALL YEARS BY COCORS REPORTED
EOR OURATIONOESIGHTING YELLOW OR GLOWING YELLOW OBJECTS I
5 SECONDS, or LesS 6-10SECONDS 11-30 SECOnDS 31-60 SECONDS
Number Per Cent Number Per Cent
Evalustion Certan Doubtful Total Certain Doub thul Total Certain Doubtful Doubtul Total
G Balloon 0 00 00 8 0 O 0.0 2 3 10.0 50 15.0 0 0.0 0.0
1-Astronomical 11 5 16 407 185 59.2 6 0 6 46.2 10 4C.2 3 3 1.0 15.0 30.0 7 2 9 35.0 10.0 45.0
2-Aircraft 3 2 5 111 74 11.s , 3 154 7.7 28.1 o H.0 0.0 3 2 5 15.0 10.0 25.0
3-Light Phenom. / o 1 3.7 0.0 3.7 0 o 10 0.0 O 0 0 1 5.0 50
4-Birds 0 1 0.0 3.7 5.7 1 2 7.2 7.7 14 0 0.0 00 O 0.0 I
5-Clouds, Dust, etc. 0 0 0.0 o 6 , 1 0.0 5.0 50 0 00
6Insuffic. into. 0 1 3.7 0.0 3.7 o 00 0 3 15.0 150 / 0 1 5.0 0.0
7-Psychological 0 0 0.0 0.0 1 50 / 5.0 0.0 5.0
&-Unknown 3 0 11.1 0.0 111 2 O 154 0.0 15.4 3 0 3 150 15.0 3 0 15.0 0.0 I
1-0ther 0 o 0 0.0 0.0 00 0.0 D O 0
Total 19 27 70429.6100.11 2 1384615.4100.15 5 20 750 250 100 15 5 20 15.0 25.0 100
-
61 SECONDS. -5 MANUTES 6-30 Minures OveR 3O MiNureS DuRATION NOT STATED
Number Per Cent Per Cent Num ber Per Cent |
Evaluation Certain Doubtful Total Total Certain Doubtful Doubtful Total Certain Doubtul Certan Total Dou btful
0-Balloon / 0 0.0 2.8 3 9 16.2 8. 1 24.3 3 7 22.2 16.7 39.9 5 2 1 13.9 5.6 19.5
1-Astronomical 2 3 2.8 56 8.4 J 3 8 13.5 8.1 21.6 0 2 2 0.0 11.1 11 6 4 10 16.7 11.1 278
2-Aircraft 8 8 16 222 22.2 44.4 4 3 7 10.8 8.1 18.9 1 2 5.6 56 11.2 / 0 1 2.8 0.0 2.8
3-Light Phenom. 2 , 3 56 2.8 8.4 3 0 0.0 8.1 D O / 0 2.8 0.0 2.8
4-Birds O 0 0 0.0 0 00 0.0 1.0 4.0
0.0 0 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0 0.0 0 0.0 0.0 O 0.0
5-insuffic. into. 5-insuffic. info. 3 0 3 8.3 8.3 0.0 1 2.7 0.0 2.7 2 0 11.1 11.1 0.0 6 6 O 16.7 0.0 16.7 1
7-Psychological 0 0 0.0 0.0 0 0.0 O 0.0
8-Unknown 8-Unknewn 10 10 0 27.8 0.0 O 6 16.2 0.0 16.2 4 4 22.2 22.2 10 0 10 27.8 27.8
9-0ther 0 0.0 0.0
00 0.0 2 1 3 3 5.4 2.7 8.1 01 1 0.0 0.0 5.6 56 0 0 1 2.8 0.0 2.8
- -
Total 251136 694 30.6100.27 694 30.610027 103773027.010011 71861.1389100. 10 3773027.0100. 11 1 18 61.1389100. 30 636 30 6 36 83.3 16.7 100. 100.
TABLE TABLE A182 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY COLORS REPORTED EVALVATION OF ALL SIGHTINGS FOR ALL YEARS BY COLORS REPORTED
FOR OURATION OF SIGHTING FOC OURATION OF SIGHTING OBJECTS OF OTHEE COLORS OBJECTS OF OTHEecocoeS — -
5 SECONDS on LESS o LESS 6-105ECONDS 6-105ECONDS 11-30 5ECONDS 11-30 SECONDS 31-60 SECONDS 31-60 SECONDS
Number Per Cent Number Per Cent Per Cent Number Per Cent
Evaluation Certain Certain Doubtful Total Doubthul Doubtful Total Doubthul Certain Certan Certan Doubithul Total Doubttul Total Certain Dou btful
D-Balloon 0-Balloon 0 0.0 0.0 2 0 2 125 125 0.0 12.5 2 3 3 4.0 1.0 10.0 10.0 1.0 14.0 / 1 / 6.7 6.7 13.4 - |
1-Astronomical 19 14 33 38.0 28.0 66.0 √ 1 6 6 31.3 6.3 6.3 37.6 4 1 \ √ 20.0 5.0 25.0 0 o , 0.0 6.7 6.7
2-Aircraft √ / 6 10.0 2.0 120 0 2 0.0 12.5 12.5 1 6 25.0 50 30.0 3 5 13.3 20.0 33.3
3-Light Phenom. 0 0.0 0.0 0 , 6.3 6.3 / 5.0 0 O 0.0
4-Birds 0 / 1 0.0 2.0 2.0 0 0.0 0.0 0 , 1 5.0 O O 0
5-Clouds, Dust, etc. 0 1 0.0 2.0 O 0 0.0 O 0 0.0 1
6-Insuffic. info. 3 0 6.0 0.0 6.0 2 12.5 0.0 /2.5 0 0 O 0.0
7-Psychological 0 00 0.0 0 C.0 0 1 0.0 5.0 50 0.0
8 Unknown 6 0 120 12.0 o 2 12.5 12.J 0 3 15.0 0.0 1.0 6 0 6 40.0 0.0 40.0
9-0ther 0 0.0 1 6.3 6.3 0 0.0 / 1 6.7 67
Total 33 17 50 66.034.0 100. 4 1675.025:0100.14 6 20 70.0 30.0 100. 10 5 75 166.7 33.3100.
61SECoNDS -5 MiNures 6-30 MINUTES DVer 30 MitUTES DURATION NOT STATEP
Number Per Cent Number Number Per Cent Per Cent
Evaluation Certain Doubtful Total Total Doubtful Certain Doub tful Doubtful Total Doubtful Total Certain
D-Balloon / 2 3 2.9 5.7 8.6 3 3 6 9.4 9.4 18.8 1 0 5.3 0.0 1.3 , 4 5.2 1.7 6.9
1-Astronomical 2 1 3 5.7 2.9 8.6 J / 6 156 3.1 18.7 3 2 5 151 10.5 26.3 12 12 24 20.7 20.7 41.4
2.Aircraft 5 11 14.3 171 31.4 4 8 12.5 12.5 25.0 2 0 10.5 0.0 105 6 3 9 10.3 5.2 1s5
3-Light Phemom. 0 / 0.0 2.9 2.9 0 1 3.1 0.0 3.1 0.0 0 o
4-Birds 0.0
0 0.0 0 0 0.0 0.0
S-Clouds, Dust, efc. 0 3 3 0.0 8.6 8.6 0 0 / / 0.0 23 5.3 1.7
6-insuffic. Into. 0 1 2.9 0.0 2.9 1 3.1 0.0 3.1 5.3 6 0 10.3 0.0 10.3
7-Psychological 2 1 3 5.7 2.9 8.6 0 0.0 0 / 5.3 5.3 , 1.7 0.0 1.7
&-Unkuno wm 10 0 28.6 0.0286 9 0 9 28.1 0.0 28.1 7 36.8 0.0 368 12 12 20.7 0.0
5-0ther 0 0.00.00.001 1 0.0 3.1 0 / 53 1.3 1 0.0 1.7 1.7
Total 21 143560.040.0100.23 9 327 71928.1 100.154 1978.921.1 100. 40 18 58 69.0 31.0/00.
222

each phenomenon. To assure that the most nearly correct presentation S
was made, and to avoid the possibility of failure to uncover any pattern or
trend inherent in the data, the variables were studied on five different -E
bases or samples. These samples, and their numerical relation to each
other, were as follows:
there is no apparent
C basis to another, an
15

TABLE A179 EVALUATION OF ALL SIGHTINGS FOR ALL YEARS BY COLORS REPORTED
FOC DURATION OF SIGHTING RER OK GLOWING RED OBJECTS
5SECONDS, OR LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS
Number Number Per Cent Per Cent
Evaluation Doubtful Doubthul Certain Total Doubtful Total Certain Doubtful Total Tota
O-Balloon 0 0 0.0 ao 0 00 o0 1 4.8 0.0 48 2 4 18.2 18.2 36.4
1-Astronomical 13 10 2.3 48.1 37.0 851 0 5 520 0.0 50.0 7 3 33.3 14.3 47.6 9.1 9.1
2-Aircraft 2 0 2 7.4 0.0 7.4 2 10.0 200 / 4 5 4.8 19.0 238 1 3 9.1 182 27.3
3-Light Phenom. 0.0 00 ao O 0 a 0 o 0 20 o 0.0 00
4-Birds o 0 00 2 0.0 0 00 8 0.0
5Clouds, Dust, etc. 0 0 00 a0 20 0.0 o 20 0.0
6 Insuffic. info. 0 0 00 00 / 1100 0.010.0 O 0.0
7-Psychological o 0 0.0 v 0.0 00 1 0 / 4.8 48 00 20
&-Unknown 0 2 74 0.0 7.4 2 0 2200 00200 3 14.3 0.0 43 / 9.1 00 9.1
90ther 0 00 0.0 0 0.00.0 0.0 / 4.8 0.04.8 1 1 2 91 9.1 18.2
Total 12 10 2763.037.0100. 9 1 1090.010.0100.14 72166.733.3100. 65 1154545.5 100
61SECONDS-5 MINUTES 6-30 MINUTES Over 30 Minotes DURATION NOT STATED
Number Per Cent Per Cent
Evaluation Certain Doubthul Doubtful Total Doubtful Doubtful Total Certain Total Dou btful
O-Balloon 2 5 9.1 6.1 15.2 6 0 4.3 0.0 14.3 3 1 4 9.4 3.1 12.5 √ 6 1.8 6.6 7.9
1-Astronomical 2 6.1 6.1 12.2 10 o 23.8 0.0 7 3 10 21.9 9.4 31.3 18 11 29 23.7 14.5 38.2
2-Aircraft 9 11 27.3 6.1 33.4 3 6 9 7.11 143 21.4 2 4 6.2 6.2 124 7 8 9.2 1.3 10.5
3-Light Phenom. 0 / o 2.4 0.0 2 6.2 0.0
4-Birds 0 0 0.0 0.0 theod O C 0010e 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 00 e / 10.0 2.42.4 0.0 2.4 6 o 0 0 O
6-Insuffic. Info. 5-Insuffic. Info. 4 0 4 12.1 12.1 12.1 3 3 7.1 0.07.1 7.1 7.1 0 0.0 0.010 2.0 10 13.2 13.2
7-Psychological 0 0.0 0.00.0 1 / 2.4 0.02.4 2.4 2.4 o 1 3.1 0.0 3.1 0
B-Unknown 8-Unknown 0 52 152 0.0 15.2 15.2 11 26.2 0.026.25 26.2 0.0 O 5 15.6 20 15.621 20 15.6 21 21 276 276 27.6
9-0ther 4 0 4 12.1 00 12.1 00 12.1 0.00.00.05 0.00.00.0 5 , 6 15.6 15.6 3.1 18.7 18.7 2 26 2.6 0.0 2.6
Total 127 27 6 6 33 81.8 18.2 100. 35 7 42 83.3 16.7 100 23 9 32 81.8 18.2 100. 35 74283.316.7100 23 9 32 71.928.110059 17 7677.6224 100. 71.928.1 10059 17 7677.6224 100.
TABLE A180 TABLE A180 EVALUATION OF ALL SIGHTINGS EOR ALL YEARS BY COLOES REPORTED EVALUATION OE ALL SIGHTINGS EOR ALL YEARS BY COLOES REPORTED
FoR FoR DURATION OE SIGHTING, DURATION OF SIGHTING GREEN OR GLOWING GREEN OBJECTS GREEN OR GLOWING GREEN OBJECTS
5 SECONDS 5 SECONDS ec Less 6-10 SECONDS 11-305ECONDS 11-30 5ECONDS 31-60 31-60 SECONDS SECONDS
Number Per Cent Per Cent Number
Evaluation Total Doubtful Certain Doubtful Total Doubtul Dou btful
G-Balloon 0-Balloon 0 0 2.0 0.0 00 0 0.0
1-Astronomical 31 52 52 83 33.3 55.9 89.2 / 14 15 15 4.57 4.5 63.6 63.6 68.1 7 2 2 9 50.0 14.3 64.3 / 0 1 16.7 0.0 16.7
2-Aircraft 2.Aircraft 2 3 0 2.2 2.3 0.0 02 / 1 4.5 HI 8 , 1 7.1 11 H1 A O 0.0
3-Light Phenom. 0 2.0 0.0 0 0.0 00 o
4-Birds 0 O 0.0 O 0
5-Clouds, Dust, etc. 0 20 0 0.0 0.0
6-Insuffic. Into. 2 0 2.2 4.5 4.5 0 00 / 1 16.7 0.0 16.7
7-Psychological 0 0 0.0 00 0.0
8-Unknown 4 0 4.3 0.0 5 22.7 0.0 4 0 28.6 667 0.0 66.7
9-0ther 1 / 2 1.1 2.2 0.02.00.0 0 0.000 0.0 0.0
Total 4053 93 43.057.0 100. 8 14 2236.4 63.6 100 11 3 14 78.6 214 100. 6 0 6100.00.0100
61 SECONDS-5 MINUTRS 6-30 MINUTES QvER 30 MiNUTeS DURATIeY NeT STATED
Per Cent Per Cent Number
Evaluation Certain Doubthul Total Doubtful Total Certain Doubtful Doubtful Total
0-Balloon 1 / 0.0 7.1 9.1 0.0 16.7 16.7 0 0
1-Astronomical 0 1 / 0.0 7.1 2.1 , 3 4 9.1 22.3 36.4 / 0 16.7 0.0 17 16 27 43 281 47.4 155
2-Aircraft 0 6 0.0 42.9 429 0 18.2 0.0 182 0 / 16.7 16.7 2 3 1.8 3.5 5.3
3-Light Phenom. 0 00 20 2 18.2 0.0 0.0 0 0.0
4-Birds 0 00 0.0 0.0 0 o 2.0 20 0.0
5-Clouds, Dust, etc. 0 a0 o ao 0.0 0.0
6Insutfic into. / 0 1 7.1 7.1 0.0 0.0 6 10.5 10.5
7-Psychological 0 00 0.0 00000
8-Unknown 4 0 28.6 0.0 28.6 2 1820.0 18.2 3 0 3 50.0 0.0 50.0 4 70 0.27.0
9-0ther 1 1 7.1 00 7.1 0 0.02020 0 00.02.0 00101 1.8 0.018
Total 7  7 14 500 50.0 100. 8 3 1172.7 27.3 100. 60 6100.00.0100.28295749.150.9100.
223

I
I
TABLE AI8S EVALUATIQN OF VNIT SIGHTINGS FOC ALL YEARS BY COLORS REPORTED
FOR DURATIONOESIGHTING WHITE OR GLOWING WHITE OBJECTS I
5 SECONDS or Less 6:10 SGCONDS 11-30 S6coNDs 31-60 ECONDS
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Certain Doubtful Total Certan Doubitful Total Total Certain Doubtful
G-Bailoon 3 4 1.0 3.1 41 0 , 00 2.6 2.6 / 2 3 2.1 4.2 6.3 0 1 0.0 2.8 2.8 I
1-Astronomical 31 33 64 31.6 53.7 653 8 9 17 2/1 23.7 44.8 8 2 10 16.7 4.2 209 2 4 5.6 $\6}$ 11.2
2.Ascraft 4 7 11 4.1 7.1. 11.2 4 9 10.5 13.2 23.7 7 7 14 14.6 29.2 J 4 9 13.9 11.1 25.0
3-Light Phenom. 0 2 0.0 2.0 1 2.6 0 1 2.1 21 0 0 0.0
4-Birds / / 2 10 1.0 20 0 0.0 0.0 00 0 3 , 4 8.3 2.8 11.1 -
5-Clouds, Dust, etc. 0 0 0.0 00 0.0 0 O o 0.0 O 0 0.0
6 Insuffic info. 3 3.1 0.0 31 3 0 2.9 0.0 7.9 5 0 10.4 6 0 6 16.7 0.0 16.7
7.Psycho logical 0 0.0 0.0 0 1.0 00 0.0 0 0.0
8 Unkuno wn 8 0 8 8.2 0.0 72 0 7 18.4 0.0 184 13 27.1 0.0 27.1 12 0 33.3 0.0 335 -
90ter 3 1 4 3.1 1.0 41 0 0 0.0 0.0 ao 2 4.2 4.2 0.0
Total 514798 52048.0100. 23 1538 60.539.5100.36 12 48 75025.0100.28 8 36 77.8 22.2 100
1
61 SECOND5-5 Medvres 6-30 MINUTES OVER 30 MINUTES DuratiOd NOT STATED
Number Per Cent Per Cent Number Number 1
Evaluation Certain Doubtful Total Certain Doubtful Total Doubthul Total Certain Per Cent
Doubtful Doubthul Doubthul Total Dou btful Total
0-Balloon 16 19 35 15.4 18.3 33.7 18 15 33 6.4 13.6 300 10 3 13 20.4 6.1 26.5 1. 6 21 11.8 4.7
1-Astronomical 3 3 16.5
6 2.9 2.9 58 4 15 10.0 3.6 13.6 12 J 17 245 10.2 34.7 18 9 27 14.2 7.1 21.3
2-Aircraft 11 9 20 10.6 8.7 19.3 4 14 18 3.6 12.7 16.3 2 3 $√ 4.1 6.1 10.2 12 J 12 9.4 3.9 13.3
3-Light Phenom. 0 0 0.0 00 2 J 7 18 4.5 63 o 0 0.0 00 0
4 Birds 0 0.0 0.0
0 00 0.0 0.0 00100 0 0 0.0 00 0.0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 3 0.0 2.9 29 0 0.0 0.0 00 0 0 0.0 / 1 o 1 0.8 0.8 08 0.8
6-Insuffic. into. 5 0 0 5 4.8 0.0 0.0 489 48 0 9 8.2 82 0 0.0 23 | -
00 23 18.1 18.1 0.0 18.1
7-Psychological 1 , 1 2 1.0 2.0 20 N 0 5 4.5 0.0 45 0 0.0 2 1 , 3 1.6 0.8 2.4
&-Unknown 29 0 27.9 0.0 21921 0 21 19.1 191 0.0 19.1 12 24.5 245 0 29 22.8 0.0 22.8
9-0ther 9-0ther 4 0 3.8 0.03820 2 1.8 0.0 1.8 20 20 4.1 0.0 41 0 6 4.7
47 - -
Total 69 35 10466.333.7 100.72 38 110 65534.5 100. 38 11 49 77.622.4 100106 21 12783.5 16.5 100. 69 35 10466.333.7 100.72 38 110 65.534.5 100. 38 11 49 77.622.4 100106 21 12783.5 16.5 100.
TABLE A184 EVALVATION OF UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTEO EVALVATION OF UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTED
FOR FoR OURATION OF SIGHTING, OURATIONOF SIGHTING, METALLIC OBJELTS -
5 SECONDS oR Less OR LEss 6-10 5ECOND5 6-10 SECONDS 11/-305ECONDS 31.605coND5 31.605EcOND5
Number Per Cent Per Cent Number Per Cent Number
Evaluation Certain Doubttul! Total Doubtful! Total Doubtful Doubtful Total Total Certain Total Doubtful Certain
G-Balloon 2 1 1 3 3 9.1 9.1 4.5 136 0 0 2 2 0.0 10.5 10.s 105 105 1 / 4 4 5 1.9 7.4 9.3 2 49 4.9 9.8
1-Astronomical 1-Astronomical / 1 2 4.5 20 0 2 2 0.0 10.5 10.8 V0.5 0 3.7 0 1 1 0.0 2.4 24 2.4
2-Aircraft 2-Aircraft 2 .6 8 9.1 01 21.3 213 364 c , 9 42.1 5.3 42.4 19 16 35 35.2 29.6 648 N 2 22 366 17.1 53.7
3-Light Phenom. 1 0 4.5 0.0 45 0 / 0.0 5.3 53 0 00 2.4 2.4
4-Birds / 0 1 4.5 0.0 4.5 0 0.0 , O / 2.4 2.4
5-Clouds, Dust, etc. 0 0.0 0.0 00 0 0 0.1 0.0 O 0.0 00 1
6-Insuffic. Info. 1 0 , 4.57 0.0 4.5 0 1 5.3 53 / 0 - 1.9 0.0 1.9 2 4.9 0.0
7-Psychological 0 1 4.5 0.0 45 0 0 0.0 2 1 3 3.7 1.9 5.6 0.0
&-Unknown 3 0 13.6 0.0 13.6 4 0 21.1 0.0 21.1 8 0 8 148 148 9 0 9 22.0
9-0ther 2 0 9.1 0.0 9.1 00 0.0 0 0.00.01 0 / 24 0.0 2.4
Total 14 82263.6364100.13 6 19 68.4 31.6 10a 33 21 54 61.138.9100.30 11 41 73.2 26.8100.
61SECoNDS-5MaorOs 6- 30 MINUTES OVER3$ MINUTES DuRATIoN Nor STATEA
Number Per Cent Per Cent Number
Evaluation Certan Doubtful Total Certain Doubtful Total Certain Doubtful Certain Total Tota
G-Balloon 18 ? 25 21.7 8.4 30.1 21 10 31 25.3 12.0 37.3 8 3 11 26.7 10.0 36.7 13 3 16 14.4 33 17.9
1-Astronomical / 0 1 /.2 0.0 1.2 8 1 1.2 3 / 4 10.0 3.3 13.3 1 3 1.1 3.3 44
2.Asrcraft 13 10 23 15.7 12.0 27.7 9 19 10.8 22.8 2 0 6.7 0.0 6.7 20 4 24 22.2 4.4 26.6
3-Light Phenom. 1 2 .2 1.2 2.4 0 / 0.0 12 0.0 / 0 1.1 1.1
4-Birds 0 1 1.2 0.0 1.2 0 0.0 0 1 / 0.0 1.1 1.1
5 Clouds, Dust, etc. 0 0.0 0 0.0 00 - 3.3 0.0 33 0
6insuffic. into. 6 0 7.2 0.0 9 9 10.8 0.0 108 0 0.0 00 20 22.2 22.2
7.Psychological , 0 / 1.2 0.0 12 1 1 1.2 0 2 6.7 0.0 4.7 1 0 1 1.1 11
& Unkuno wn 0 20 24.1 0.0 1\ 15 18.1 0.0 181 9 0 9 30.0 300 16 0 16 17.8
9-0ther 1 3 4 1.2 3.6 42 6 4.8 2.4 7.2 01 / 0.0 3.3 70 7 7.8 0.0 7.
Total 6221 83 14.7 25.3100.59 24 83 71.1 28.9 100. 25 5 30 83.3 16.7 100. 79 11 90 87.8 12.2100
224

TABLE A185 EVALUATION OE UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTEO
Foe OURATION SIGHTING. OBJECT COLOR NOTSTATEO
5 SECON DS less 6-10 SECONDS 11-30 SECONDS 31-60
Number Per Cent Number Per Cent
Evaluation Total Certain Certain Doubtful
0-Balloon 0 1 / 0.0 3.4 344 2 7.1 7.1 14.2 0.0 2.9 3 12.0 8.0 20.0
1-Astronomical 11 6 17 37.9 20.7 58.6 , 357 7.1 42.8 4 1 5 11.8 2.9 14.7 2 1 3 8.0 4.0 12.0
2-Aircraft 4 1 5 13.9 3.4 17.2 2 - 3 14.3 2.1 21.4 4 9 14.7 11.8 265 5 12.0 8.0 20.0
3-Light Phenom. 00 0 0.0 0 0.0
4-Birds 0 0.0 D 00 0 0.0
5 Clouds, Dust, etc. 0 0 / 2.9 O 0 0.0 0.0
6 Insuffic. into. 5- 0 5 17.2 0.0 0 / 7.1 0.0 71 7 o Z 20.6 20.6 2 2 8.0
7-Psychological 0 1.0 00 0 0.0 0 0.0
&-Unknown 1 / 3.4 34 0 2 14.3 4 4 11.8 0.0 148 36.0 360
90ther 0 0.0 odo o 0.0 00 2 5759 14.720.6 01 1 4.0 Hil
Total 21 8 29 72.427.6 100. 11 3 14 78.621.4100.22123464.735.3100.19 62576.024.0100.
61SECONDS.-5 MINUTES 6-30 Minyres Qver 30 MinvteS DURATIeN Nor STATED
Number Per Cent Per Cent Number
Evaluation Certain Doubtful Total Dou btful
0-Balloon 12 \ 17 17.9 7.5 254 20 10.5 15.8 26.3 2 7 10.4 4.2 /4.6 13 2 6.2 3.3 9.5
0 1-Astronomical 0 1 1 0.0 1.5 1.5 2 6 55.3 2.6 79 5 10.4 2.1 2.5 29 12 41 13.8 5.7 195
2-Aircraft 9 7 16 13.4 10.4 238 12 5 17 /d:8 6.6 224 1 3 4 2.1 6.2 8.3 18 35 8.1 8.6 16.7
3-Light Phenom. 2 1 3 3.0 1.5 H.5 0.0 0 0.0 2 2 4 1,0 1.0 2.0
4-Birds 0 0.0 0 , / 1.3 1,3 2 4.2 0.0 4.2 2 3 1.0 0.5 1.5
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0.0 / 1.3 1.3 00 0.0 0
6-Insuffic. into. 6-Insuffic. Info. 0 5 5 7.5 7.5 0.0 75 75 12 12 15.8 0015.8 9 0 0.0 15.8 9 9 18.7 18.2 /87 187 530 53 25.2 00 25.2
7-P sychological 7-Psychological 0 0 0.0 0.0 00 2 2 2.6 26 0.0 26 10 2.1 21 21 3 , 4 1.4 0.5 1.9 1.9
8-Unknown &-Unknown 21 21 0 3/3 3/.3 0.0 31.310 31.3 10 o 13.2 13.2 0.013.215 0 15 0.013.2150 15 31.2 3/2 31233 0 3315.7 33 15.7 15.7
9-0 ther 9-0ther 4 04 0 4 6.0 0.0 60207 607 7 9.20.0 92 4 0 4 9.2 92 404 F.3 0.0 8.317 0 17 8.1 8.317 0 /78.1 0.0 8.1
Total 53 14 6779.1 20.9100. 56 20 7673.726.3 100. 42 6 4887.512.5/00.V69 41 21080.519.500 53 14 6779.120.9100. 56 20 7613.726.3100. 42 6 4887.512.5100.V69 41 21080.5 19.500
TABLE TABLE A184 A184 EVALVATION OE UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTEO EVALVATION OE UNIT SIGHTINGS FOR ALL YEARS BY COCORS REPORTEO
FOR DURATION OF SIGHTING EOR DURATIONOF SIGHTING ORANGE OR GLOWING ORANGE OBJECTS ORANGE OR GLOWING ORANGE OBJECTS
5 SEcoNDS oR LesS 5 SecoNDS oR LesS 6-10 550DS 6-10 SCONDS 1/-30 SECONDS 11-30 SECONDS 31-60 5ECONDS 31-60 SECONDS
Per Cent Number Per Cent
Evaluation Doubtfuil Total Total Doubtful Total Doubtful Certain Doubtful Total Dou bthul Total
0-Balloon 0 0 0 0.0 00 a0 0.0 1 1 2 3 J:6 J.6 111 /67
1-Astronomical 14 8 22 31.1 17.8 489 489 2 0 7 4.7 0.0 46.7 4 4 8 21.1 422 422 2 111 111 11.1 222
2-Aircraft 2 6 8 4.4 13.3 /77 177 3 3 1 4 4 20.0 6.7 267 267 1 / 2 5.3 10.6 10.6 4 111 H 11./22.2 111 222
3-Light Phenom. 0 0 0.0 0.0 0 20 00 O D 0.0
4-Birds 0 1 / 2.2 22 0.0 0.0 0.0 5.3 5.3 0 / 5.6 5.6
0 5-Clouds, Dust, etc. 0 0.0 0.0 0 00 0.0
5-insuffic. into. 4 0 8.9 0.0 8.9 0 0 0.0 / J.6 5.6
7-Psychological 0 2.2 22 0 0 0.0 2.0 0.0 / 5.3 53 / 5.6
&-Unknown 5 0 11.1 0.0 11./ 3 3 20.0 200 6 6 31.6 316 4 22.2 0.0 22.2
9-0ther 3 4 6.7 2.2 8.9 0 1 / 0.0 5.3 53 00 0 0.0
Total 29 164564435:.6100.14 11593.36.7100.13 619 68.4 31.6 100. 12 6 18 66.733.3100.
61SECONDS.-5 Muures 6-30 MeNuteS OveR 30 Mivres DuCatioN NeT STATED
Number Per Cent Number
Evaluation Doubtful Total Total Total Certain Doubtful Doubtful
G-Balloon 3 5 8 6.1 10.2 16.3 6 2 16.7 5.6 223 0 0.0 20.0 3 4 5.4 1.8 7.2
1-Astronomical 0 3 0.0 6.1 2 1 3 5.6 2.8 8.4 3 4 7 20.0 26.7 467 8 6 /4 14.3 10.7 25.0
2-Aircraft 4 8 12 8.2 16.3 24.5 2 H 4:6 5.6 11.2 0 / 0.0 6.7 67 8 5 13 14.3 8.9 23.2
3-Light Phenom. 2 0 2 0.0 4.1 6 16.7 0.0 /6.7 / / 6.7 1.5 1.8
4-Birds 0 0.0 0 0 o 0.0
5-Clouds, Dust, etc. 00 0.0 0 O 0.0 0 0
6-Insuffic info. 5 10.2 0.0 10.2 1 / 2.8 28 0 o 0 0.0 7 12.5 125
7-Psychological 2 3 2.0 4.1 6.1 0 0 0.0 0 / / 6.7 1.8 0.0 1.8
&-Unkno wn 13 13 26.50.0 26512 0 12 33.3 0.0 / / 6.7 6.7 11 1/ 19.6 0.0
9.0ther 30 3 6.1 0.0 6.10 2 2 56 5.6 10 / 6.7 0.0 4 5 1.8 218.9
Total 31 18 49 63.336.7100. 29 7 3680.6 19.4100. 9 6 1560.040.0 100. 40 16 5671.4 28.6 100.
225

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-
TABLE A187 EVALVATION OE UNIT SIGHTINGS FOR ALL YEARS BY COCOES REPORTED
FOR RVRATION OF SIGHTING RED OR GLOWING REO OBJECTS -
5 SECONDS on Less 6-1O SEGONDS 11-30 5ESONDS 31-6056CONDS
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Total Doubthul Certan Doubtful Doubtful Total Certain Doubtful Total Tot
0-Bailoon 8 0 0 0.0 00 0 0.0 00 5.6 56 2 4 18.2 34.4
1-Astronomical 10 9 19 45 40986.4 5 0 50.0 3 -
0.0 500 6 9 33.3 16.7 500 0 / 9.1 .0
2-Aircraft 2 0 9.1 0.0 9.1 1 10.0 20.0 / 3 4 56 16.7 22.3 2 3 9.1 18.2 27.3
3-Light Phenom. 0 00 0.0 0 0 0.0 00 0.0 2.0
4-Birds 0 0.0 00 D 0 0 0.0 00 8
5-Clouds, Dust, etc. 0 0.0 0.0 0 0 00 0.0 0.0 00
6-Insuffic. Info. 0 o 0.0 0 1 10.0 0.0 10.0 00 0 0.0 00
7-Psychological 0 0.0 0.0 00 0 / 1 5.6 0.0 56 0 0.0 00
&-Unkno wn , 0 1 4.6 0.0 2 0 200 0.0 20.0 0 2 111 11.1 o / 9.1 0.0 9.1
10ther 0 0.0 00 0 0.0 10 / 5.6 56 1 1 2 9.1 182
Total 139 22 59140.9 100. 9 1 10 90.010.0 100.12 6 18 6733.3 100. 6 5 11 54.5 455100.
1
61 SECONDS-5 Muutes 6-30 MiNUTeS OvEr 30 MiNeres DUeatied Ner STATEP
Number Per Cent Number Per Cent Number Per Cent |
Evaluation Certain Doubtful Total Certain Doubtful Total Total Doubtful Certain Certain Doubithul Total Doubtful Total
0-Balloon 3 2 5 11.1 7.4 185 4 0 11.1 0.0 11.1 3 , 4 143 4.8 19.1 0 \ 5 0.0 8.6 86
1-Astronomical / 2 3 3.7 2.4 11.1 6 0 6 16.7 0.0 16.7 8 2P6 9.5 38.1 15 5 20 259 8.6 345
2-Aircraft 7 2 9 21=9 2.4 33.3 3 6 8.3 16,7 25.0 1 2 3 48 9.5 14.3 2 8 12.1 1.7 I
3-Light Phenom. 188
0 0 00 0.0 2.8 0.0 2 9.5 9.5 0 0.0 0.0
4-Birds 0 0 0.0 O O 0.0 0.0 00 0 00 0.0 D 0 O
5-Clouds, Dust, etc. 00 20 0 O 0.0
0 0 0.0 0.0 / / 2.8 2.8 0 0.0 0 0.0
6-Insuffic. Info. 4 0 4 14.9 14.8 0.014.8 0.0 0 3 8.3 0.0 8.3 0 0.0 10 10 0 17.2 0.0 | |
7-Psychological 0 0.0 00 1 0 / 2.8 0.0 2.8 1 0 4.8 4.8 1.0 0.0
8-Unknown 4 0 41 4 148 148 0.0
0.0148 11 0 11 30.6 0.0 0.0 306 306 0 1 4.8 4.8 13 13 22.4 0.0 22.4
9-0ther 9-0ther 20 20 2 2.4 0.0 7.4 0 7.4 0.07.4 0 0.0 2. 2 4.8 4.6 4.6 9.6 20 2 0 2 3.4 0.0 3.4 3.4
- -
Total 21 6 2777.822.2 100. 29 7 3680.6 19.4100. 13 8 2161.9 38.1 100. 47 11 5881.0 19.0100. 21 6 2777.822.2100.29 7 3680.6 19.4100 13 8 2161.938.1 100.47 11 5881.0 19.0100.
TABLE A188 EVALUATION OE UNIT SIGHTINGS EOR ALL YEARS BY COLORS REPOETED EVALUATION OE UNIT SIGHTINGS EOR ALL YEARS BY COLOES REPOETED
FoR FoR OURATION OF SIGHTING OURATION OFSIGHTING GREEN OR GLOWING GREEN OBJECTS GREENOR GLOWINGGREENOBJECTS —
5 SECONDS 5 SECONDS or LESS or LEsS 6-10 SECONDS 11-30 SECONDS 31-60 SECONDS 31-60 SCONDS
Number Per Cent Number Per Cent a Number Per Cent
Evaluation Certain Doubtful Total Doubtful Doubtful Total Total Certain Certain Doubtful Total Doubtful Total Dou btful
0-Balloon 0 0 0.0 0.0 0 0.0 0 -
1-Astronomical 27 3s 62. 6 2. 37.5 486 86.1 / 10 11 6.7 66.7 13.4 73.4 7 2 9 63.6 63.6 18.2 18.2 81.8 81.8 1 0 0 / 50.0 0.0 50.0
2-Aircraft 3 2 2.8 0.0 2.8 14 / 0 1 6.7 0.0 6.7 0 / 00 9.1 9.1 0.0
3-Light Phanom. 0 0.0 0 0.0 00 0 0.0
4-Birds 0 0 0.0 0.0 0.0 0 D 00
5-Clouds, Dust, etc. o 0.0
0 0.0 00 0 0.0 0 00 0.0
5-insuffic. Info. 2 0 2 2.8 0.0 0 o 0.0 0 8 0.0
7-Psychological 0 O 0.0 0 0.0 0.0 0 00
B-Unknown 4 0 5.6 0.0 56 3 0.0 20.0 1 0 / 9.1 500 0.0 50.0
9-0ther / 2 1.41.4 2.8 00 0 0 0.0 00 0.0 00.00
Total 36 36 7250.050.0100. 510 15 33.366.7 100. 8 3 /1 72727.3 100. 0020.00.0400
61 SECONDS-5 MINUTES 6-30 MINUreS Dver s0 MINvreS DURATION NOT STATED
Number Per Cent Per Cent Number Per Cent
Evaluation Doubtful Totai Certain Total Doubtful Total Certain Total Certain Doubtful Tota
0Balloon 1 1 0.0 8.3 0 / 9.1 0.0 9.1 / 16.7 0.0 160.7 0 0 0.0
1-Astronomical 0 / 1 0.0 8.3 3 4 9.1 27.3 36.4 0 16.7 0.0 16.1 14 19 33 30.4 41.3 71.7
2.Aircraft 0 6 6 0.0 50.0 50.0 2 18.2 / 0 16.7 0.0 16:7 1 2 3 2.2 4.3
3-Light Phenom. 6.5
0 0 0.0 2 18.2 0.0 18.2 0 0 00 0.0
4-Birds 0 0 0.0 0.0 o 00 0 0.0
5-Clouds, Dust, etc. 0 00
00 00 2.0 6 0.0 0.0 0 0 0.0
6- Insuffic. into. 1 0 / 8.3 0.0 8.3 0 0.0 0.0 0 00 00 6 6 13.0 13.0
7-Psychological 0 0 0.0 0.0 0 00 0.0 00 0.0
8-Uniknown 2 0 2 16.7 0.0 16.7 0 2 18.2 0.0 3 0 50.0 0 6.5 0.0 6.5
9.0ther 1 0 / 8.3 0.0 8.3 0 0.0 0.0 10 2.2 2.2
Total 5 7 1241.758.3100.8 3 72.727.3V00. 606100.0.0100252146543457100
226

TABLE A189 EVALUATIONOF UNIT SIGHIINGS FOR ACL YEARS BY COLORS REPORTED
FOR PURATION of SIGHTING, YELLOW OR GLOWING YELLOW OBJECTS
5 SECONDS oK LESS 6-10 5ECONDS 11-30 SECONDS 31-60 5ECONDS
Per Cent Per Cent Number
Evaluation Doubtful Total Certain Doubtful Certain Total
O-Ballaon 0 0 0.0 00 e 0.0 2 6.3 6.3 12.6 O 0.0
1-Astronomical 10 5 15 40.0 20.0 60.0 √ O 55.4 1.0 k5.6 3 1 4 18.8 6.3 25.1 6 , 7 33 5.9 41.2
2-Aircraft 2 2 4 8.0 2.0 16.0 0.0 111 3 0 3 18.8 0.0 188 5- 126 11.8 29.4
3-Light Phenom. 1 0 4.0 0 20 0.0 0.0 O , 5.9
4-Birds 0 4.0 , , 11 11.1 0 0.0 o 0.0
S Clouds, Dust, etc. 0 0 0.0 00 0.0 6.3 6.3 6 o
6 Insuffic. Into. 0 1 4.0 0.0 4.0 0.0 3 3 18.8
7-Psychological 0 0.0 o 0 0.0 / 1 6.3 5.2 5.9
8-Unkno wn 0 12.0 12.0 2 0 22.3 22.2 12.5 12.5 3 17.6 0.0 176
9-0mer 0 0.0 1.0 0 0.0 00
Total 17 8 2568.032.0100. 8 1 9 88.911.1 100. 13 3 16 81.2 18.8 100. 13 4 17 76.5 23.5 100
61 SECONDS-5 Mirutes 6-30 MINUTES QveR 30 MINUTES STATED
Number Per Cent Per Cent
Evaluation Doubtful Total Certain Doubtful Total Doubthul Doubtfui Total Doubtul Total Certain
0-Balloon 1 0 / 3.0 00 3.0 6 3 9 /6.2 8.1 24.3 4 7 23.5 17.6 41.1 √ 2 7 16.1 6.5 22.6
1-Astronomical / 3 3.0 6.1 9.1 8 13.4 8.1 21.6 O 2 0.0 11.8 4 3 7 12.9 9.7 226
2-Aircraft 7 8 15 2/2 24.2 45.4 4 3 10.8 8.1 18.9 2 5.9 11.8 / 0 1 3.2 0.0 3.2
3-Light Phenom. 2 1 3 6.1 3.0 9.1 3 8.1 8.1 0 0 0.0 0.0 , 3.2
4-Birds 0 O 0 0.0 O
5-Clouds, Dust, etc. 0.0 0.0 0 0.0 0 00
5-Insuffic. Info. 6-Insuffic. Info. 3 0 9.1 0.0 9.1 , 1 2.7 2.7 2 0 2 11.8 11.8 5 √ 5 16.1 16.1 161
7-Psychological 7-Psychological 0 0.0 .0 0
8-Unknown 8 242 24.2 6 6 16.2 0.0 3 0 3 17.6 0.0 11.6 O 9 29.0 29.0
9-0 ther 0 0.0 21 3 5.4 2.7 8.1 8.1 01 0 1 / 1 1.9 5.9 O / 0.0 3.2
Total 22 11 33 22 11 33 66733.3 100.27 10 3773.027.0 100 667 33.3 100.27 10 37 73.0 27.0 100 10 7 1758.841.2100.26 53183.916.1100. 110 17 58.841.2 100.26 5 31 83.9 16.1 100.
TABLE A190 TABLE A190 EVALUATION OF UNIT SIGHTINGS EVALURTION OF UNIT SIGHTINGS FOR ALL YEARS BY COLORS REPORTED FOR ALL yEARS BY COLORS REPORTED
E0e E0e DURATION QF SIGHTING OBJECTS OFoTHEE COLORS OF OTHEE COLORS
5 SecoNps eR LeSS 5 SECoNDS eR Lass 6-10 SECONDS 11=30 11-30 SECONDS 31-60 SECONDS 31-60 5ECOND5
Per Cent Number Per Cent Number Num ber
Evaluation Doubtful Doubthul Total Doubtful Total Doubtful Total Certain Certain Dou btful Total
0-Balloon 0-Balloon 0 O 8 8 0.0 o 2 13.3 0.0 00 13.3 1 1 3 5.6 11.1 16.7 / / 2 2 7.7 7.7 154
1-Astronomical 12 12 9 26 39.5 20.9 20.9 604 5 1 / 6 33.3 6.7 40.0 40.0 4 4 1 5 5- 22.2 5.6 27.8 27.8 0 / 0.0 0.0 77 7.7
2-Aircraft 5 1 / 6 11.6 2.3 13.9 2.3 /3.9 0 2 2 0.0 0.0 13.3 13.3 4 1 22.2 22.2 5.6 27.8 3 3 J J- 15.4 23.1 38.5 15.4 23.1 38.5
3-Light Phenom. 0 / 0.0 6.7 6.7 1 56 56 0.0
4-Birds 0 1 / 00 2.3 0 o 1 0.0 56 5.6 0.0
5-Clouds, Dust, etc. 0 / 2.3 00 0 0 o 0.0
6-insuffic. into. 0 3 10 20 2 2 13.3 0.0 153 o 0 0.0 00
7-Psychological 0 00 I 1 0.0 5:6 5.6 0 0.0 00
8-Unknown 6 0 6 14.0 0.0 140 / 0 1 6.7 6.7 2 11.1 00 4 4 30.8 30.8
9-0ther 0 1 / 6.7 0.0 60.1 0 / 1 7.7 0.0 77
Total 3112 43 12.127.9100.11 4 15-73.326.7 100. 12 6 1866.733.3 100. 8 5 13 61538.5100
61 SECONDS-5MINUTES -30 MINYrES QveR 30 MINUTES D URATION NOT STATED
Per Cent Number
Evaluation Total Certain Doubtful
G-Balloon / 2 3 3.3 6.7 10.0 6 94 9.4 188 0 9.1 0.0 9.1 , 3 4.9 24 7.3
1-Astronomical 2 , 3 6.7 3.3 10.0 5 1 7 12 3.1 18.7 , 4 273 91 364 10 14 24.4 9.8 342
2-Aircraft 5 4 9 16.7 13.3 300 4 8 12.5 25.0 0 2 18.2 0.0 18.2 3 14.6 7.3 21.9
3-Light Phenom. 0 1 / 0.0 3.3 3.3 3.1 00 0 0.0 20
4-Birds 0 0 0.0 0.0 D
5-Clouds, Dust, etc. 0 O 0 00 0.0 D 0.0 0
6insuffic into. 3.3 / 3.1 31 0 0.0 6 14.6 146
7-Psychologital 2 1 3 6.7 3.3 10.0 0 0 0.0 / 9.1 0.0 9.1 1 2.4 2.4
8-Unknown 10 10 33.3 0.0 9 9 28.1 0.0 28.1 0 3 27.3 213 2 7 17.1 00 17.1
10ther 0 0 / 0.0 3.1 3.1 00 0.0 0.00 1 / 2.4 2.4
Total 21 9 30 70030.0 100. 23 9 3271.9 28.1100. 10 1 11 90.9 9.1 100. 32 9 41 780 22.0 100
.
227

-
TABLE A191 EVALUATIDN OE CBJEET SIGHTINGS FOR ACL YEARS BY COLORS REPORTED
Eoe QURATION OF SIGHTING WHITE OR GLOWING WHITE OBJEETS -
5 SECONAS ee Less 6-10SESONDS 11-30 SECONDS 31-60 SEC0ND5
Number Per Cent Number Per Cent Per Cent
Evaluation Certan Doubtful Total Certain Totai Total Certain Doubthul Total Doubtful Certain Doubtful
0-Balloon 1 3 4 1.3 3.9 5.2 0 0.0 3.1 2 3 2.6 √3 7.9 0 0.0 2.8 -
1Astronomical 21 2 46 27.3 32.57 J28 √ 9 14 1.6 28.1 43.7 2 7 13.2 5.3 18.5 2 4 5.6 5.6 11.2
2-Aircraft 4 7 11 52 9.1 14.3 3 2 94 12.5 21.9 6 11 13.2 15.8 29.0 4 9 13.9 11.1 25.0
3-Light Phenom. o 2 0.0 2.6 0 3.1 0.0 Q / / 26 O o 0 0.0 0.0
4-Birds , / 2 1.3 2.6 0 0.0 a 0.0 3 1 4 8.3 2.8 u.1
5-Clouds, Dust, etc. 0 0.0 0 0.0 o 0 0.0
6 insuffic. info. 0 1 1.3 1.3 0 3 9.4 0.0 94 4 10.2 0.0 105 6 o 6 16.7 00 16.7
7-Psycho logical 0 0.0 0.0 0 0 0 0.0 00
& Unkno w 2 7 9.1 0.0 6 0 6 18.8 0.0 18.8 0 10 26.3 0.0 26.3 12 33.3 33.3 |
3-0ther 3 1 4 3.9 1.3 5.2 0 O 0 0.0 20 2 √3 0.0 5.3 o 0
Total 38 39 7749450.6 100.18 14 3256.343.7100.27 11 3871.1289100.28 836 77.8 22.2 100.
1
61SECONDS-5 Minvres 6.30 MINUTES QUEE 3O.MINUTES DURATION KAT STATED
Number Per Cent Number Per Cent 1
Evaluation Certain Doubtful Total Certain Doubtful Number Per Cent
Doubtul Total Certain Doubtful Doubthul Certain Dou btful Total
G-Balloon 15 18 33 158$ 18.9 347 12 30 19.4 12.9 32.3 8 3 11 18.6 7.0 25.G 13 5 18 12.6 4.9 17.5
1-Astronomical 2 3 2.1 3.2 5.3 10 4 14 10.8 4.3 15.1 11 16 25C 11.6 31.2 10 8 18 9.7 7.8 175 |
2-Aircraft 10 8 18 10.5 8.4 189 3 10 13 3.2 10.8 14.0 2 1 3 4.7 2.3 2.0 9 4 13 8.7 3.9 12.6
3-Light Phenom. 0 00 0.6 2 4 6 2.2 4.3 o 0 0.0 0.0 0 00
4-Birds 0 0.0
s-Birds 0 0 00 0.0 0.0 8 0.0 0.0 O 0
5-Clouds, Dust, etc. 8 3 00 3.2 0 O 0.0 0.0 0 o 0 O 1 1.0 00 1.0
6-Insuffic. Info. 5 0 \r} 0.0 5.3 7 0 o 7 1.5 0.0 7.5 0 0 0.0 | 1
0.0 22 21.4
7.Psychological / 1 2 2 1.1 1.1 2.2 √ √r 0 5.4 00 54 0 0.0 0.0 2 1 3 1.9 10 10 2.9
B-Unknown 26 0 26 224 0.0 27.4 0 16 0.0 17.2 11 0 25.6 0.0 256 24 23.3 00 23.3
9-0ther 3 03 3.20.0 3.220 3.2 0.0 3.2 20 2 2.2 0.0 22 22 0 4700 4.7 47 4 0 0 4 4 3.9 0.0 0.0
|
Total 62 33 9565.334.7 100.63 3093 62 33 9565.334.7 100. 63 30 93 67.732.3100.34 9 4379.120.9100.85 1810382.517.5100 67.732.3 10034 9 43 79120.9 100.85 18 10382.517.5 100
TABLE A192 EVALVATION OE OEJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTED EVALVATION OE OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTED
Foe DURATION OE SIGHTING DURATIONOESIGHTING METALLIC OBJECTS
5 SECONDS, OC Lees 6-10 SECOND5 6-10 SECONDS 11-30 5ECONAS 11-305ECONAS 31-60 SECOND5 31-60 SECONDS
Number Per Cent Per Cent Number Per Cent
Evaluation Evaluation Certain Doubtful Total Doub tful Total Certain Doubtfu! Doubtful Total Certain Doubtul Doubtful Doubtful Total Doubtful Total Dou btful
0-Balloon G-Balloon 2 / 3 9.1 4.5 13.6 0 2 00 00 10.5 10.5 10.5 3 4 2.0 6.1 8.1 2 5.3 5.3 10.6
1-Astronomical / 2 45 45 9.0 0 0.0 0.0 10.5 / 1 2.0 2 2.0 0 0.0
2-Aircraft 2 A 6 8 0 9./ 27.3 27.2 364 21.4 8 / 9 42.1 5.3 47.4 18 1s 33 36.7 30.6 67.3 1√ 6 21 39.5 15.8 55.3
3-Light Phenom. / / 4.5 0.0 0 1 5.3 J.3 0.0 0 2.6 2.6
4-Birds / 0 1 4.5 0.0 0 o 0.0 0 00 O 1 26 00
5-Clouds, Dust, etc. 0 0
0.0 0 0.0 0 O 0.0
6-insuffic. info. / 0 1 4. 0.0 4.5 , 0 1 L3 5.3 / 0 1 2.0 0.0 2 2 5.6 0.0 5.6
7-Psychological / 0 4.5 0.0 0 00 0.0 2 / 3 4.1 2.0 6.1 0 0 0.0
8 Unknown 0 3 136 0.0 13.6 4 0 21.1 211 7 7 14.3 0.0 8 8 21.1 21.1
9-0ther 2 0 2 910.09.100 0 0.0 00 0.010 1 2.6
Total 14 8 2263.236.4 100.13 6 1968431.6100. 30 19 4961.2 38.8 10a 29 9 38 76.3 23.7 100
61SEcoNs,-5 MinUreS 6-30 MINUTES Qver 30 MINUTES DURATION der STATED
Number Per Cent Per Cent Number
Evaluation Certan Doubtful Total Certain Total Certain Doubt ful Doubtful Totai Doubtful Total Certain Doubtful Total
G-Bailaon 17 5 22 22.1 28.6 18 9 27 24.0 12.0 36.0 6 3 9 12.0 3.0 10 3 13 11.9 3.6 15.5
1-Astronomical 0 1.3 0.0 1.3 0 1 1 3 1 4 12.0 4.0 160 3 4 1.2 3.6 4.8
2-Aitcraft 13 10 23 16.9 13.0 299 9 19 120 13.3 253 1 O 4.0 0.0 40 4 23 22.6 4.8 27.4
3-Light Phenom. / 2 1.3 13 2.6 0 1 00 1.3 0 0.0 / 0 1 1.2
4-Birds 1 0 1 1.3 0.0 1.3 O 0.0 00 0 / 1 1.2
5-Clouds, Dust, etc. 0 0.0 00 0 o 1 0 / 40 00 4.0 0.0
5 insuffic into. 0 5 6.ut 0.0 61 & 8 10.7 0.0 0 O 0.0 20 23.8
7-Psycholagical 1 0 1.3 0.0 13 1 0 1.3 O 2 8.0 0.0 8.0 0 1.2
B-Unkso wn 20 0 20 26.0 0.0 26012 0 12 16.0 16.0 7 280 0.0 28.0 1s 0 15 7.9 0.0 17.9
9.0ther 1 2 1.3 1.3 2.6 6 5.3 2.7 8.0 6 1 0.0 40 4.0 6 7.1 0.0 7.1
Total 60177771.922.1100.52 237569330.700.2052580.020.0100.731184 86.9 13.1 100
228

TABLE A198 EVALVATION OE OBJECT SIGHTINGS FOR ALL YEARS BY COLORS REPORTED
Eae DURATIONOE SI6HTING OBJECT COLOR NOT STATED
5 SECONDS or Lass 6-10 SECONDS 11-30 SECONDS 31-60 5ECOND5
Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Doubtul Total Cortain Doubthul Total
0. Balloon / 5.0 5.0 2 11/ 11.1 22.2 0 0.0 3.1 3 - 4 13.0 4.3 17.3
1-Astronomical 8 3 11 4e0 1.0 55.0 , 3 22.2 1.1 333 1 4 9.4 3.1 12.5 2 8.7 4.3 13.0
2-Aircraft 4 / 5 20.0 2.0 25.0 2 U1 22.2 5 4 9 156 12.5 28.1 3 - 13.0 4.3 17.3
3 Light Phenom. 0 0.0 .0 0.0 0 o 0.0
4-Birds 0 00 0 D 0.0
5-Clouds, Dust, etc. 0 0 0.0 0.0 1 / 3.1 3.1 O
5Insuffic. Into. 3 0 15.0 150 / 1 11.1 7 21.9 0.0 2 e 8.7 8.7
7-Psychological 0 0.0 O 0 0.0
&-Unknown 0 0.0 / 1 11.1 0.0 4 O 4 12.5 0.0 12.5 9 39.1 39.1
9.0ther 0 0 0.0 O 2 4 6 6.3 12.518.8 0 1 / 4.3
Total 15 5 20 710 25.0 100 6 3 966.733.3100.21 11 3265.634.4100 19 4 23 82617.4 100
61 SECONDS -5 Midures 6-30 MNUTES Qyer 30 MurrteS DURATION NOr STATED
Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Total Doubtful Totai Certain Doubthul
0-Balloon 12 15 19.7 4.9 24.6 8 1/ 19 11.1 15.3 26.4 3 2 5 7.7 5.1 12.8 11 4 6.6 2.4 9.0
1-Astronomical 0 1 0.0 1.6 1.6 3 2 5 4.2 2.8 1.0 3 / 4 7.7 2.6 10.3 157 8 23 90 4.8 13.8
2-Aircraft 8 2 15 13.1 11.8 24.6 12 17 167 6.9 23.6 3 4 2.6 7.7 V0.3 16 28 1.2 9.6 16.8
3-Light Phenom. 2 1 3 3.3 1.6 4.9 o 0.0 0.0 0 2 1 0.6 1.8
4-Birds 0 0 0.0 0.0 O , / 1.4 1.4 2 51 5.1 2 / 3 1.2 0.6 1.8
5-Clouds, Dust, etc. 0 0.0 1 / 1.4 1.4 O 0 0.0 00
6-insuffic. Info. 6-Insuffic. Info. 3 4.9 4.911 4.9 0 11 "1 15.3 0.0153 153 8 8 0 8 20.5 20.55 0.0 205 20.5 48 287 28.7 0.0
7-Psychological 7-Psychological 0 0.0 a0 2 00 2 2.8 1 0 2.6 0.0 0.0 2.6 3 1 3 4 1.8 0.6 0.6 2.4
&Unknown 20 32.8 0.0 32.8 9 o 9 12.5 12s 0.0 12.5 0.0 11 0 28.2 0.0 28.2 28.2 290 29 0 29 17.4 17.4
9-0ther 40 4 0 660.0 6.62 07 660.0 6.670 7 9.7 9.7 4 10.3 10.314 0 14 8.4 0.0 8.4
Total 49 12 61 80.3 19.7 100 53 19 72 73.626.4 100. 33 6 39 84.615.4 100.136 31 16781.4 18.6 100. 49 12 61 80.3 19.7 100 53 19 7273.626.4 100.33 6 39 84.615.4 100. 136 31 16781.4 18.6 100
TABLE A194 EVALUATION DE OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTED EVALUATION DE OBJECT SIGHTINGS FOR ALL YEARS BY POLORS REPORTED
foR fOR OURATIONOESIGHTING QURATIONOESIGHTING ORANGE OR GLOWING ORANGE DBJECTS
5 SECONDS,0R 5 SECONDS,aR Less LEss 6-10 SESONDS 11-30 SECONDS 1/-305ECOND5 31-60 55COND5 31-60 S6COND5
Per Cent Per Cent Number Per Cent
Evaluation Certain Total Doubtful Doubtful Certain Doubtful Total Doubttul Dou btful Total
0-Balloon 0-Bailoon 0 0.0 0.0 0 0 0.0 1 2 2 3 3 6.7 13.3 13.3 20.0
1-Astronomical 11 6 17 275 275 15.0 42.5 √ √ 0 5 5 41.7 0.0 41.7 4 6 6 /2.5 25.0 25.0 37.5 1 2 3 3 6.7 13.3 20.0
2-Aircraft 2-Aircraft 2 6 8 5.0 15.0 3 O 250 0.0 25.0 / / 2 6.2 13 6.2 7 12.4 01 1 3 6.7 67 13.3 12.3 20.0 20.0
3-Light Phenom. 0 0 O 0.0 0.0 00
4-Birds 0 / 1 2.5 2.5 0 0 / 62 0.0 6.2
5-Clouds, Dust, etc. 0 0 ao 0.0 0 00
6-Insuffic. info. 0 4 10.0 0.0 0.0 / / 6.7
7-Psychological 1 0 1 2.5 C.0 0 0.0 / 6.7 0.0 6.7
& Unknown \ 5 12.5 3 25.0 0.0 6 37.5 0.0 4 0 26.7 0.0 26.7
9-0ther 1 4 2.5 2.5 10.0 0 / 8.3 0.0 83 01 0.06.2 6.2 0 00 0.0
Total 26 14 40 65.035.0 100. 12 0 12100.00.0 100. 10 6 16 62.537.5100. 9 6 15 60.0 40.0 100
-
6150C0NDs-5 MAUTES 6-30 MNUTE5 OveR 30 MIUTeS DURATIOd NOr STOTED
Per Cent Number
Evaluation Certain Doubtful Total Total Doubtful
G-Balloon 3 J- 8 6.7 11.1 17.8 J 2 1 7.9 2.1 25.0 0 200 0.0 20.0 3 4 6.0 2.0 8.0
1-Astronomical 0 3 0.0 6.7 2 3.6 7.2 4 20.0 267 467 7 J 12 14.0 10.0 24.0
2-Aircraft 4 6 10 8.9 13.3 222 2 3.6 7.2 0 / 0.0 6.7 2 1/ 12.0 10.0 22.0
3-Light Phenom. 0 2 4.4 44 6 21.4 21.4 / 6.7 0.0 6.7 / 0 1 2.0
4-Birds 00 0.0 a0 0 00 0.0
5-Clouds, Dust, etc. 0 00 6 0.0 0.0 O
6-insuffic. info. 4 0 4 8.9 0.0 89 1 0 L 3.6 0.0 D 7 14.0
7-Psychological 1 2 3 2.2 4.4 6.6 0 2 00 / 1 0.0 6.7 6.7 0 / 2.0
&-Unknsown 0 12 26.7 9 9 32.1 0.0 0 / 6.7 0.0 6.7 18.0 0.018.0
9-0ther 0 3 0.0 6.7 01 1 0.0 3. 3.6 1 0 / 6.7 6.7 1 4 5 2.0 8.010.0
Total 2916 45 64.435.6100. 23 5- 28 82.117.9 100. 9 6 1562.537.5100.35 15 50 70.030.0 100.
229

I
1
ABLE EVALVATION OF OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTEN
FOROURATIONOES/GHTING RED OR GLOWUNG RED OBJECTS 1
5 SECONDS OR LEss 6-10 SECONDS 11-30 SECONDS 31-60 SECOND5
Number Per Cent Number Per Cent
Evaluation Certain Total Doubtul Total Certain Doubtful Certan Doubthul Doubtful Total Ceriain
G-Balloon 00 0.0 02 0 0 0.0 00 6.7 2 2 20.0 20.0 400
1-Astronomical 8 2 15 444 389 83.3 4 0 0.0 444 4 2 6 26.7 13.3 400 / 10.0 0.0
2-Aircraft 2 0 2 141 00 111 1 11.1 22.2 / 3 4 6.7 26.7 10.0 10.0 20.0
3-Light Phenom. 0000 1e0 0 0.0 00 o 00
4-Birds 0.0.00·0.0 0 0.0 0 00 0.0 00
5-Clouds, Dust. etc. 0 0 0.002 0.0 ao o 00 D 0.0
6 Insuffic. Infto. 0 0000 1 1 11.1 00 0 0.0
7-Psychological 0 00.00 00 1 / 6.7 00 67 0 0.0
& Unknown 2 / 5.6 0.0 5.6 2 0 22.2 0.022.2 21330013.3 / 10.0
9.0ther 0.0 0.000 00 0 0.00.0001 16.70.0 6.7 1 2 100100 20.0
Total 11 7 1861.138.9100.8 1 988.911.1100. 10 5 1564.73331006 4100.0400100.
61 SECONDS-5MINUTES 6-30 Mudyres Quere 30 MiNUTES DURATIod noT STATED
Number Per Cent Number
Evaluation Certain Total Doubtful Doubthul Dou btful
0-Bailoon 3 2 5 13.0 87 21.7 0.0 11.4 3 / 4 15.0 5.0 20.0 0 4 2.0 8.2 8.2
1-Astronomical / 43 86 6 0 1.1 0.0 17.1 2 1 25.0 10.0 35.0 9 4 13 184 8.2 266
2-Aitcraft 7 26.1 4.3 30.4 3 1 8 8.6 22.9 / 2 5.0 10.0 15.0 7 / 8 14.3 20 16.3
3-Light Phenom. 0 0 0.0 / 29 00 2.9 2 10.0 100 D o
4-Birds 0 2 0.0 b.0 O 0.0 0
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0 000.00.0 0.0 1 1 0.0 2.9 2.9 0.0 2.9 29 0 O 0000 2.0
5-Insuffic. info. 6-Insuffic. info. 4 0 4 11.4 17.4 0.0174 0.0 17.4 3 o 3 8.6 8.6 0.08.6 0.0 8.6 0 10 204 0.0 204 204 204
7-Psychological 0 0 00 0.0 1 1 / 2.9 0.0 29 2.9 0.0 2.9 / 5.0 0.0 50 0.00.0 0.0 0.0
&-Unknown &-Unknown 3 3 0 313.00.0 3 1300.0 13.0 11 0 11 31.400 31.4 1 / 50 0.0 5.0 12 12 24.5 0.0 245 24.5 0.0245
9-0ther 2 2 8.7 0.0 87 2 8.70.0 87 0 0 0.00.00.0 00 000.0 1 / 50 50 5.0 5.0 10.0 2 024./0.0 41 024./0.04.1
Total 19 4 4 2382.617.4 100 29 6 3582.917.1100. 12 8 2060.040.0100 40 9 49 81.6 18.4100. 2382.617.41002963582.917.1100. 12 8 2060.040.010040 94981.618.4100.
TABLE A194 A196 EVALUATION DE OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTER
F0e PURATION OF SIGHTING, GREEN DR GLOWING GREEN OBJECTS PURATION OF SIGHTING. GREEN DR GLOWING GREEN OBJECTS
5 SECONDS SEcoNDS e1 Less Less 6-10 J6CONDs 11-30 5ECOND3 11-30 SECONDS 31-60 SECONDS
Number Per Cent Per Cent Num ber
Evaluation Evaluation Doubtful Total Doubtful Total Total Certain Certain Doubtul Doubitful Total Doubtful
0-Balloon 0-Bailoon 0 0 0.0 0 0.0 00 00
1-Astronomical I-Astronomical 223 23 29 52 37.7 47.5 85.2 7 8 9.1 63.6 63.6 72.7 6 6 1 7 lode.7 lode.7 11.1 77.8 778 1 0 0 1 / 50.0 0.0 50.0
2-Aircraft 2 2 3.3 22 32 1 9.1 00 91 / / 11.1 141 0 o 0 D 0.0 00 0.0
3-Light Phenom. 0 0 0.0 0.0
4-Birds 0 0 2 0.0 0.0 00 4
5-Clouds, Dust, etc. 0 0 0.0 0.0
6-Insutfic. into. 2 3.3 0 0.d00 0 0 0.0 0.0
7-Psychological e.0 0.0.0.0 00 0 0 0.0 0.000
8-Unknown 3 0 3 4.9 0.0 2 2 1820.0 18.2 1 111.1 0.0 11.1 / 50.0 0.0 50.0
9-0ther 11 21.6 1.6320 00 0.0 0.00.0 0 0.0 0000 0
Total 31 30 6150.849.2100.47 1136.463.6100.72 917.822.2100.20 2 10000.0100
61 SCONDS-5 MiruTeS 6-30 MiNUreS QUEK 30 MUdUTES DURATION NOT STATED
Number Per Cent Number
Evaluation Certain Total Doubtful Doubtful Certain Total
G-Balloon 0 / 12.1 0.0 11.1 9.1 0.0 9.1 1 0 20.0 00
1-Astronomical 0 / / 0.0 11.1 3 4 9.1 27.3 36.4 0 0.0 20.0 10 24 278 38.9 66.7
2-Aircraft √ 5 0.0 55.6 55.6 0 2 182 0.0 18.2 / 20.0 1 / 2.8 5.6
3-L ight Phenom. 0 0 20 2.0 2 182 k82 0.0
4·Birds 0 2 00 0.0 20 0.0 O 00
5 Clouds, Dust, etc. 0 00 00 0.0 0 2 o 0.0
6 insuffic. info. / 0 / 11.1 0011.1 0.000 0 0.0 0 6 16.7 0.0 16.7
7-Psychological D 0.0 0.000 0 0 0.0·0.0·0.0 a0 00 00
8-Unknown 0 0 0.0 0.0·00 2 182 0.0 182 40.0 0.0 40.0 3 3 00 8.3
9.0ther / 0 1 1.10.011.10 000.00.00.0 0 0.0000.01 2.8 0.0 2.8
Total 3 6 9 333 66.7100. 8 3 11 12.721.3 100. 5 0 5100.00.0100.21153658.341.7 100.
230

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TABLE A192 EVALUATION OE OBJECT SIGHTINGS FOR ALL YEARS BY COLORS REPORTEP
EOR DURATION OF SIGHTING YELLOWOR GLOWING YELLOW OBJECTS
5 SECONDS OR LESS 6-10 SECONDS 11/-30 SECONeS 31-60 SECONDS
Number Number Per Cent
Evaluation Certain Doubtful Doubtful Total Total
O-Ballaon 0 D 0 0.0 60 0.0 / 2 77 77 15.4 0 0 0.0
1-Astronomical 6 3 9 353 17.6 52.9 0 5 55.6 0.0 2 7.7 27 / 15.4 77 2.3.1
2-Aircraft 2 3 11.8 5.9 17.7 0 / 11./ 0.0 11.1 3 o 23./ 0.0 23 2 5 23.1 15.4 385
3-Light Phenom. / 0 5.9 5.9 0 0.0 00 0.0 0.0 0 77 77
4-Birds 0 , / 0.0 5.9 1 ae 11.71 0 0.0
5-Clouds, Dust, etc. 000.000 0 0.0 a0 / 77 0 0.0
6-Insuffic. into. 1 1 5.9 20 5.9 0 0.0 3 o 3 231 0.0 23.1 0
7-Psychological 0.00.00.01 0 0 0.0 00 1 / 7.7 0.0 77 , o 77
&-Unknown 2 0 211.9 0.0 11.8 2 0 222 0.02221 7 77 0.0 .0 3 23./
9.0ther 0000.00.000 0 00 000.0 0 0 0 0.000 0 0.0
Total 12 5 1770.629.4 100. 8 1 9 88.9 11.1100. 10 3 13 7.923.1100. 9 4 1369.230.8 100.
6/SECONDS 5 MINUTES 6-30 MINUTeS OVER 3OMINUTES OVRATION NOT STATED
C Per Cent Number Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Dou btful
0-Balloon / 0 / 3.3 0.0 33 6 8 18.2 6.1 245 4 3 7 23.5 176 4.1 2 6 14.8 7.4 22.2
1-Astronomical 1 2 3.3 6.6 5 3 8 15.2 9.1 24.3 D 2 00 11.8 11.8 4 3 7 14.8 11.1 25.9
2-Aircraft 7 8 15 233 267 50.0 4 2 6 12.1 6.1 18.2 / 5.9 59 11.8 1 0 1 37 0.0 3.7
3-Light Phenom. 1 33 0.0 3.3 2 0 2 6.1 0.0 61 0 / 3.7
4-Birds 0 0 0.0 0.0 0 2.0 Q
5-Clouds, Dust, etc. 0 0 0.0 0.0 0.00 0 C 20 0.00.d0 00 0.00.0
6-Insuffic. Info. 6-Insuffic. Info. 0 0 3 10.0 0 / / 3.0 0.0 2 2 11.8 0011.84 0 00 4 4 14.8 00 14.8
7-Psychological 6 0 0.0 00 od 0 0.0 0 0.0 0.00.00 0 0.00.0 00
8-Unknown 0 8 267 267 0.0 2675 \ 5 15.2 15.2 0 3 17.6 0.017.67 0 0.017.6 7 7 259 25.9 0025.9 20
9-0ther 0.0 0 0.0 0.0 21 3 6.1 30 9.1 01 0 1 / 5.9 5.9 1 0 / 37 0.03.7 0.0 3.7
Total 21 9 30 70.030.0 100. 25 8 3375.824.2100.10 7 17 58.8 41.2100.22 5 2781518.5100. 21 9 30 70.030.0100. 25 8 3375.824.2100.10 >1758.8 41.2100.22 5 2781518.5 100.
TABLE A198 EVALVATION OF OBJECT SIGHTINGS EOR ALL YEARS BY COLORS REPORTED EVALVATION OF OBJECT SIGHTINGS FOR ALL YEARS BY COLORS REPORTED
FOEOURATION FOe QURATION OF SIGHTING. OBJECTSOE OTHER OBJECTSOEOTHER coLeRs coLORs
5 SECONDS OR LESS 6-10 SECONDS 11-30 SECONOS 31-60 SECONDS
Number Per Cent
Evaluation Certain Doubtful Dau btful Dou btful Total
G-Balloon 0-Balloon 0 0 0 0.0 0.0 / 8.3 0.0 1 2 3 7.1 71 14.3 214 / 2 77 7.7 15.4
1-Astronomical 9 6 15 290 290 19.4 48.4 4 0 0.0 33.3 2 A 2 /43 /4.3 14.3 o 1 / 0.0 7.7 77
2-Aircraft 2-Aircraft 4 / 1 5 12.9 129 3.2 72 16.1 161 0 2 0.0 00 16.7 17 167 7 214 21.4 7.1 71 28.5 285 2 3 , 15.4 154 23.1 231 38.5 385
3-Light Phenom. 0 0.0 1 / 0.0 8.3 8.3 0 7/ 71 00
4-Birds 0 / / 3.2 32 0 00 0.0 7/ 71 0 0.0
5-Clouds, Dust, etc. 0 1 / 0.0 3.2 0 0 0.0 00 O 0.0
6-Insuffic. info. 3 0 3 9.7 0.0 97 2 2 16.7 0.0167 0 0.0 0.00.0
7-Psychological 0 0 0 0.d 0.0 / 00 7.1 0.0 0.0
8-Unknown 6 0 19.4 / 0 / 8.3 0083 2 2 0.0 14.3 4 30.8 a0 308
9-0ther 0 0 0.0 0.00.01 / 8.3 0.083 0.020 0.01 / 7.7 77
Total 22 9 317.029.0100. 93 12 75.025.0100. 9 5 1464.335.7100. 85 13 61.538.5100.
6ISECONDS-5MINVTES 6-30MINUTES OVER 3OMINUTES URATION NOT STATED
Number Per Cent
Evaluation Certain Doubtful Total Doubtful Certain Doubtful Total
0-Balloon / 2 3 3.6 71 107 3 2 5 10.3 6.9 17.2 0 / 125 0.0 12.5 3.1 94
1-Astronomical 2 3.6 7.2 5 / 6 17.2 34 20.6 3 0 3 0.0 375 8 18.8 6.3 25.1
2-Aircraft 4 4 8 14.3 144.3 28.6 4 13.8 13.8 276 2 0 25.0 0.0 3 8 15.6 94
3-Light Phenom. 1 / 0.0 3.6 3.6 , 34 3.4 0 o 0 00 0.0
4-Birds D 0 0 0.0 20 0.0 00
5-Clouds, Dust, etc. D o.d 0.0 6 0 0 00 0 00 0.0
6-insuffic. inio. , 0 / 3.6 0.0 3.4 34 0 0 00 6 18.8 0.0 18.8
7-Psychological 2 3 7 3.6 10.7 0 0.0 1 0 125 12.5 / / 0.0 3.1
8-Unikno wn 10 10 0.0 35.7 7 7 241 0024.1 0 / 12.5 0 5 15.6 0.0
3-0ther 0 0.0 e1/ 00 34 3.4 00 0 0.0 0.00.0 01 / 3.1
Total 19 92867.932.1100.2/ 8 2972.427.6 100.8 0 8 1000 0.0100. 25 + 3278.121.9 100.
231

I
1
TRBLE A199 EVALUATION OF ALL SIGHTINGS EOR ALL YEARS BY NUMBER OF OBJECTS
PER SIGNTING FOE DURATION Of SIGHTING ONE OBJECT
5 SECCNOS,OR LESS 6-10 SECONOS 11-30 SECONDS 81-60 SECONDS
Number Per Cent Number Per Cent
Evaluation Certan Doubtful Total Certan Certain Doubtful Total Certann Doubthul Certain Doubtful Total Total Doubtful Tota
G-Balleon 3 5 8 0.8 14 2.2 3 4 7 2.9 51 6 10 2.0 2.9 9 11 20 5.6 6.8 12.4 I
1-Astronomical 136 138 274 368 313 241 43 26 316 19.1 50.7 46 15 61 22.4 7.3 29.7 15 8 23 9.8 5.0 143
2.Aircraft 20 16 36 54 4.3 97 14 13 27 10.3 9.6 199 2828 56 131 137 274 30 18 48 186 11.2 29.8
3-Light Phenom. 2 0 050005 1 / 2 07 07/4 0.5 0 0.0 00 0.0
4-Birds 0 000020.00 0.000000 00 00.00 00 0.0 o0 I
5-Clouds, ,Dust, etc. / 1203 0306 O 0 0000.00 0 22 ee 10 1.0 00 00 00.00
6 Insuffic into. 12 012320.032 0 7 51005114 01468 0.06.8 12012 75 0.015
7-Psyche logical 2 0205·00.25 000.00000 3 14150.52.0 2 02 12001.2
& Unknow 23 023 62004222 0 221620016.244 04421.50.0 21551 05131.7 0.0 317 I
9.0ther 3 11 220.8 30 2 0 215 001.5 4 8 1220.3.9 5.9 3 2 5 19 1.2 31
Total 20716337055.9441100924413667.6324100. 1446/20570229.8100. 1223916/75.824.2100
|
61SECONDS -5MINUTES 6-30 MINVTES OVER 3OMiNUTES DURATION, NOT STATEU
Number Per Cent Number Per Cent Per Cent Number
Evaluation Certain Doubtful Total Doubtful Total Certain Doubtful Total Doubtful Total Certain Doubtful Total Doubtful Total Dau btful Total
G-Balloon 55 33 88 14.9 9.0 23.9 Y 42 110 19.8 12.2 320 37 17 54 18.0 83 263 49 29 78 79 4.7 12.6
1-Astronomical 10 13 23 2.7 3.5 6.2 40 12 52 11.7 35 152 28 13 41 136 6.3 199 118 86 204 19.0 13.8 32.8
2-Aircraft 46 38 84 125 10.3 228 28 32 60 82 9.3 17.5 9 15 14 4.4 7.3 11.7 52 3789 84 6.0 144 —
3-Light Phenom. 5 2 7 14 0s 1.9 4 // 2.0 1.2 32 0 7 2 00 10 1.0 1 4 0.5 0.2 0.1
4-Birds 0 00000000 0 0.0 00 0 0.0 0.00.0 1 1 2 02 0204
5-Clouds, Dust, etc. 0 7 7 0019 1.9 1 1 203 0.30.6 6 0 62.9 0.02.9 0 7 70019 1.91 / 2 03 0.6 6 0 6 2.9 102102109
0.029 1 1 202 0204 02 0204
6 Insuffic. info. 6 Insuffic. info. 34 034 9.20.09223 0 23 67 0.0 6712 012 67 0.06712 0 /2 5.80.0 5.8 101 010116.30.016.3 5.80.0 58101 010116.30.016.3 |
7-Psychological 4 2 6 1.1051.6 9 0 9 4 2611051.6 9 0 9 2.6 00 266 0 2.6 00 26 6 0 6 2900 29 290029 50 5080008 505080008
& Unknown 10401042830.028361 104 01042830.028361 06117.800 17848 048 06117800 17848 0 48 2330.0 233110 01101770.0 17.7 2330.0233110 011017700 17.7
9-0ther 12 315 33 08 41 11 4 15 321.244 8 5 133.9 2.4 63 22 4 263.5 06 41 12 315 33 08 41 11 415 32 1.2 44 8 5 13 3.9 2.4 6.3 22 4 263.5 06 4.1
Total 270 9836913.426.6100248 953432.3277100. 1545220674825.2100 46215962174.4256100 270 9836913.426.6100 248 95 343723277100. 15452 20674825.2100 46215962174.4256 100.
JOBLE A200 TOBLE A200 EVALUATION OE ALL SIGHTINGS FOP ALL YEARS BY NUMBER OE DBJECTS
PER SIGHTING FOR OURATION OE SIGHTING, PER SIGHTING FOR DURATION OF SIGHTIN6, TWOOBUECTS Iwo OBJECTS
5 SECONDS, OR LESS 5 SECONDS OR LESS 6-10 SECONDS 6-10SECONOS 11-30 SÉCONDS 11-30 SECONDS 3/-60SECONDS
Number Number Per Cent Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Certain Doubtful Total Total Doubtful Total Certain Certan
0-Balloon 0 0 a0 0.0 0 00 0.0 2 4 6 6.9 6.9 13.8 13.8 20.7 0D od Q.0
1-Astronomical 2 2 4 4 6 45 45 19.0 19.0 285 0 2 00 15.4 154 154 0 00 0.0 00 0 / / 11.1 11.7 11
2-Aircraft / 5 5 6 48 48 23.8 286 4 / 308 308 1.7 7.7 385 2851 7512 7 12 241 2d1 11.2 17.2 41.3 412 / 3 14 4 I 11.1 33.3 222 4U.4
3-Light Phenom. / 00 48 O 0 0.0 00 0 0 0.0 00 11.7 11A1
4-Birds 0 0 0.0 00 0 00 0 0.0 C.0
S-Clouds, Dust, etc. 0 00 0.0 0 00 0.0 D 0000 0 0.d 0.11
6 Insuffic. info. 2 0 295 0.045 / / 77 0.0 7.7 2 0 269 0.0 6.9 1 1141 0.011.1
7-Psychological 0 000.000 0 0.0 2 2 6.9 0.06.9 00 0 0d0.0
8-Unknewn 6 0 6 28600 286 5 0 5 385 003855 5 17.200 17.2 2 0 2 122 0.0222
9-0ther 00 000000.00 0 0000.0001123.4346800 0.d 0.0 0.0
Total 11 1021 524 47.6100..0 31316923/100 1910 29656345100 459 44.455.5100.
6/SECONDS-5MINUTES 6-30 MINUTES OVER 30MINUTES NOTS TATED
Number Per Cent Per Cent Number Number Per Cent
Evaluation Certan Doubtful Total Certain Certain Doubtful Total Certain Tota Doubtful Total
0-Ballioon 7 14 115 115 23.0 6 12 13.3 13.3 26.6 3 / 4 15.0 50 200 4 3 7 5.2 3.9 9.1
1-Astronomical / 0 1.6 00 1.6 2 3 5 4.4 6.6 11.0 0 5.0 0.0 5.0 6 9 1.8 3.9 11.7
2.Aircraft 17 // 28 219 180 459 6 8 14 13.3 17.8 311 4 10 200 30.0 50.0 13 H 17 169 5.2 22.1
3-Light Phenom. 0 0 0.0 00 3 6.6 0.0 00 / 1.3 0.0
4-Birds 0 00 0.0 0 0 0.0 00 00 0.0
5 Clouds, Dust, etc. 1 0 0.0 1.6 0 00 0.0 / 5.0 5.0 1.3 0.0 1.3
5insuffic. into. 20 2 3.3 0.0 33 2 0 2 4.4 4.4 0 10.0 0.010.0 707 9.1 0.091
7-Psychological 1/ 2 16 32 0 00 00 0 0.0 0d 0d d010 0.0 0.000
& Unkuno wn 110 11180 00 180 60 6 13.3 00 133 / 5.0 0.05.028:0 2836.4 0.0 36.4
3-0ther 26 23300 33 30 3 6.6 0.0 6.6 4 0 5.0 0.05.0 5 2 760.5 2.6 9.1
Total 42,96168931.110028174562.237.8100/2820600 40.0100.6512 7284.4156100.
232

tration of reports of BJECT SIGHTINGS in an area. No other interpre-
tation of the tables or remaining charts was deemed necessary.
Advanced Study of the Data
It was recognized that the lack of any patterns or trends, as shown by
the tabulations and graphs, provided an insecure basis for drawing definite
conclusions. Accordingly, shortly before the sorting and tabulation pro-
A program of computation was set up and carried out to obtain the
angle of elevation and the bearing of the sun for each sighting. All informa-
tion needed for this calculation was available on the deck of IBM cards.
16

-
-
TRBLE A201 EVALUATIDN OF ALL SIGHTINGS FOR ALL YEARS BY NUMBER OF OBJECTS
PER SIOHTING FOR DURATION OF SIGHTING, THREE TO TEN OBJECTS
5 SECONOS OR LESS 6.10 SeCONpS 11-30 SECONOS 3/-60SECONDS
Number Per Cent Number
Evaluation Certain Doubtful Total Certain Doubiful Total Certain Doubtful Total Certain Doubtful Total
0-Balloon 2 4.16.1 0 0 00 0.0 7 17 7.7 0.0
1-Astronomical 3 0 9.1 0.09.1 0 / 6.7 0.0 / 3.8 3.8 5.9 5.9
2-Aircraft 6 4 10 182 12.130.3 5 0 3 0.0 33.3 13 38.5 11.5 50.0 Z / 8 41.2 5.9 471
3-Light Phenom. 0 00 3030 3 20.0 20.d o 1 / 3.8 3.8 D / 0.0 5.9
4-Birds 2 4 6 6.1 121182 / 00 6.7 0 3.8 00 3.8 2 5.9 59 11.8
5.Clouds, Dust, etc. 0 0.0 0.00.0 0.00.00.0 01 O 0 00 0000 D 0.0.00
6-insuffic. into. 2 0 2 6.1 0.061 / O 6.7 0.04.7 a0 0.00000 0.0 0.0.00
7.Psychological 0 0 0 00 0.00.0 0.00.0.0.0 / / 3838 0.0 00.00
8-Unkno wn 7 21.2 0.021.2 4 0 26.7 0.0 26.7 70 26.9 0.0 26.9 5 5 29.4 0.0294
9-0ther 2 026.10.06.10 000.00.00.0 00 0 000000000 0.00.000
Total 22 11 3366.733.3 100 11 415 73.326.7100 18 8 2669.230.8100. 13 41716.523.5100.
6/SECONDS-5M INUTES 6-30 MINVTES OVER 3O MINUTES DURATION NOT STATED
Per Cent Number Number
Evaluation Doubtfui Total Certain Doubtful Doubtful Total Doubtful Total Certain
O-Balloon 3 4 16 48 6.4 6 4.8 4.8 9.6 6 0 00 12.8 5 0.0 5.3
1-Astronomical 2 2 00 3.2 32 0 0 0.0 5 7 4.3 10.6 149 / 3 4 1.1 3.2 4.3
2-Aircraft 12 10 22 194 35.5 8 15 23 2.9 24.2 371 / / 2 2.1 42 18 4 22 18.9 4.2 23.1
3-Light Phenom. / 3 14 3.2 4.8 2 4 3.2 44 l 0 0.0001 0 1 1.1 0.0 11
4-Birds 0 0.0.0.2000 / 00 1.6 D 0.0 0d 2 3 2.1 3.2
5-Clouds, Dust, etc. 000.0.0.0.00 00 O C 000.0000 0 0 0.0 20 0.0 0.0000 0.00.0 00000000 0 000000 000d0 00 0.0
6-Insuffic. Info. 6-Insuffic. into. 7 0 71.30.0 11.3 10 010 7 0 11.3 0.0 11.310 0/0 16.10.014120 16.1 0.016.1 202 2 420.0 4220020 21.1 0.021.1 42 0.0 4220020 21.1 0.0 21.1
7-Psychological 0 110.0 1.61.6 0 0 0 / 0.0.0.00.00 0.0.0.0 0.001 0.0 0.02.1 2.1 2.1 2.1 / / 2 .1 . 2.2 1.1 2.2
&Unknown 21 021339 0.0 33915 0 15 21 0 21 339 0.0 33915 0 15 24.2 0.0 24.2250 25 24.2 0.0 24.2 250 25 53.20053.224 0 244 25.3 00 253 53.20053.2240 24425.300 253
9-0ther 2 02 3.2 0.032 1 2 3 1.4 3.2 4.8 4 0 4 8.5 0.0 8.514 0 14 14.7 0.0 14.7 2 02 3.2 0.0 32 1 2 3 1.4 3.2 4.8 4 0 4 8.5 00 8.5/4 0 14 14.7 00 14.7
Total 44 18 6271.0 29.0100. 39 23 6262.937.1100. 40 7 4785.1149 100. 86 9 95 905 9.5100. 4418 621.0 29.0100.39 23 6262.937.1100. 40 7 4785.1149100.86 995 905 9.5100.
TABLE A202 TABLE A202 EVALVATION OE ALL SIGHTINGS FOR ALL YEARS BY NUMBEE DF OBJECTS EVALVATION OE ALL SIGHTINGS FOR ALL YEARS BY NUMBEE OF OBJECTS
PEe SIGHTING FOR DURATION, OF SIGHTING, ELEVEN DR MORE OBJECTS SIGHTINGEORDURATION OF SIGHTING, ELEVEN OR MORE OBJECTS
5SECONDS 5SECONOS ORLESS ORLESS 6-10 SECONDS 11-30 SECONDS 11/-30 SECONDS 3/-60 SecONOS 3/-60 SeCONDS
Per Cent Number Number
Evaluation Doubtful Total Doubtful Total Certain Doubtful Total Dou btful
0-Balloon G-Balloon 0 0.0 0 / / 33.3 333 O 00 00 0 0 0.0 20
1-Astronomical 20 10.0 10.0 0 0 0.0 / / 33.3 33.3 00 0.0 00
2-Aircraft 123/00200 / 2 3 10.0 20.0 30.0 30010 33.3 33.3 0.033.3 O D 0 0 D.0 0.0 D.D ad / 12.5 12.5 0.0125
3-Light Phenom. C O0 0.0 O 0 0.0
4-Birds 0 0.0 00 / 33.3 0.d 0 0.0 33.333.3 4 500 0.050.0
5-Clouds, Dust, etc. O 0 05 0000 D od 0.000 O 0.0 0.00.0 0.0 0.0 0.0
6-insuffic. info. 3 3 30d 0.0300 0000 a O 0.0 000.0 0 O 0.0 0.00.0
7-Psychological 0 0 0.0 00 0.d 020 0.000 0 7 0.0 33.333.3 00 00 000.0
8-Unknown O 3 30.0 0030.0 00 0 0.0 00 00 0 0 0 0.0 0.0 00 3 0 3 37.5 0.0375
9-0 ther 00 0 0.0000.0 00 0 00 0000 00 0 0.00.0000000.00000
Total 7310 70.030010021 366.733.3100.09 30.01000 100. 8 08 100000100.
4/ SECONDS-5 MINUTES 6-30 VER 30 MINUTES OVRATON NOT STATED
Number Per Cent Per Cent
Evaluation Doubtful Doubthul Total Certain Doubtful Certain Total Total
O-Balloon 2 0.0 00 / 0 12.5 12.5 0 0.0 00 D 0 00 0.0
I-Astronomical 0 / 9.1 a / 0.0 125/2.5 0 6 20.0 0.0200 O / 4.5 00
2-Aircraft O 2 0.0 18.2 18.2 00 0 0.0 0.d 0d / 3.3 3.3 / 00 4.5 4.5
3-Light Phenom. 0 0.0 0.0 0.0 20 2 25.0 0.0250 10 3.3 0.0 O 0 0.0
4-Birds / 0 9.1 0.0 00 O 000.0 0 0.0 0.0 02
5-Clouds, Dust, etc. D C 0000 0 0.0 0000 0 0.0 01 00
5-insuffic info. 0 I C ad 0.0.0.0 A 1250.012500 0.0 00 7 31.8 0031.8
7-Psychological 0 0.0 0.00.0 00 0 0.0 ad 0d 1 0 3.3 00 20 2 9.1 0.09.1
8-Unknown H 4364 0.036.4 30 33750.037.52002066.7 0.0 667 0 9 109 0.040.9
9.0ther 3 0 3273 0.027300 00.0 0000 01100333.32 0 2 4.12.0 9.
Total 8 3 11 72,727.3100.7 1 8 87.512.5100. 28 2 30 93.36.710021 1 2245.5 4.5100
233

1
1
TRBLE A203 EVALVATION OF ALL SIGHTINGS EOL ALL YEARS BY NUMBER OF OBJECTS
PER Eae OVRATION OF SIGHTING NUMBER OBJECTS NOT STATED -
5 SECONOS OR LESS 6-10 SECONOS 1-30 SECONDS 31-60 SECONOS
Number Per Cent
Evaluation Doubtful Total Doubtful Totai Certain Doubthul Total Total
0 Balloon 0 0.0 00 / 500 50.0 0 00 0.0 -
1-Astronomical 2 0 667 lole 7 0 00 0 O 0.0 00
2-Aircraft O / 00 333 335 / / sod 0.0500 0 0.0 0.0
3-Light Phenom. 1002000 41 0 odoood 0 0.0
0.0
4-Birds 00d0000 0 0 00 0.00d 1 0 / 1000 0.0 102.0 -
5 Clouds, Dust, etc. 00 0.020 00 0 0 00.00.00d 00 0.0
6 insuffic. info. 0.0 000000 0 000.00000 0.12 0.0 00
7-Psychological 0 00 000000 0 20.00.00000 0.0 00.00
&-Unkunown 2.0000000 0 00200000 0 0.00000 |
9-0ther O 02000000 000000000000 0.0,0000
Total 2 1 3 606.7333100 222400.00.010000000.0100.
1
61 SEcoNps 5 6-30 MINUTES OveR 30 OURATION NOT STATED
Per Cent Number Per Cant Number
Evaluation Certain Certain Doubtful Total Doubtful Doubtful Doubthul Total Dou btiul
G-Balloon 2 33 3 333 0 1 / 0.0 33.3 0.0 0 / 2.7 2.7
1-Astronomical 00 0 0 0.0 / 83 8.3 11 12 29.7 2.7 32.4
2-Aircraft 2 33.3 0.0 33.5 00 0.0 0 3 4 2.7 8.1 10.8
3-Light Phenom. 1 16.7 00 16.7 1 0.0 33.3 333 0 00 20 0 0.0 2.7
4-Birds 020 200.00.000 0 2 2.0 0.000 3 0 3 0.0 3 0 2500025.0 20 25.0 00 2 54 5.4 0.05.4 0.0 5.4
5-Clouds, Dust, etc. 0 00.0000.000 0.0.000.00 0 0 0.0000 2 0 0.0 0.0 1 0 1 2.7 2.7 0.02.7 1
6-insuffic. info. 6-insutfic. info. / 0116.70.046.7000 / 16.70.016.70 0 0.00.00.0 20 2 0.0 0.00.0 2 16.7 0.016.7 8 0 8 0.016.7 8 0 8 21.6 21.6 0.021.6 1
7-Psychological 0 0 0.0000.00 00 0.000 0.00 00.0.d00000 00.0.d000 0.0 0.00.00 0.00.0 01 1 / 1 00 2.72.7
8-Unknown 0 0 0.00.02.010 1 0.00.02.0 10 1 3330.033.3 5 05 41.7 3330.033.3505 41.7 0.0 41.7 6 0 6 0.0 41.7 6 0 6 16.2 16.2 0.016.2
9-0ther 0 0 0 0.00.00.0 0 0 0 0.00.0.0.0 1 0 830.083 1 0 1 2.1 0.0 2.7 0 000.00.0 0 0 0 0.00.0.0.0 1 0 83 0.0831 0 1 2.7 0.0 2.7
Total 6 0 6400.000100 2 134733.3100. 12 0 120000.0100. 31 6 3783.816.2100. 6 0 6 V00.000100 21 36733.3100. 12 0 12V0000.0 100. 31 6 3783.816.2100.
-
234

TRBLE 8204 EVALVATION OE UNIT SIGHTINGS FOR ALL YEARS BY NUMREE X OBJECTS
PEU SIGHTING EOR DURATION OF SIGHTING QNEOBJECT
5 SECONeS OR LESS 6-10 SECONDS 11-30 SECONeS 81-60 SECONDS
Number Number Per Cent
Evalustion Certain Certain Doubtful Total Doubtful Total
0-Bailoon 3 6 1.0 2.0 3 2.7 2.7 5.4 6 9 1.8 36 54 9 10 19 69 2.6 145
1-Astronomical 15 /01 216 38.5 338 723 36 2/ 57 324 189 513 38 12 50 22.6 1.1 29.7 14 6 20 10.7 4.6 15.3
2-Aircraft 16 15 31 5.4 5.0 10.4 13 10 23 11.7 90 20.7 25t 25 50 14.9 14.9 298 23 18 41 17.6 13.7 31.3
3-Light Phenom. 2 07 20 0.7 / 09 0.9 06 1.2 0 00 0.0 0.0
4-Birds 00 0000 0 00 0.00.0 0 0 0.0 0.0
5-Clouds, Dust, etc. 0 / / 00 0.3 0.3 0 0000 2 2 00 1.2 1.2 C 0.0 0.0
6-insuffic. info. 0 12 40 0.040 6 06 54 0054 14 O 14 83 0.08010010 7.6 0.0 76
7-Psychological 2 0 2 0.7 0.0 07 0 000.00.00.0 14 1.8 0.62.4 202 1.5 0.0
&-Unknown 0 19 6.4 0.04.41601614.40.04428 028 16.70016.7 34 0 34 26.0 0.0
9-0ther 7 310 231.0 33 2 0 21.80.01.8 4 5 9 2.4 3.05.4 32 5 2.3 1.5 3.8
Total 17612329958.941.1100 7734 11169.4306100.V165216869.031.0100.95 3613/72.527.5100.
61 SECONDS MINUTES 6-30 OVER 30 DURATION NOT STATEO
Number Per Cent Number
Evaluation Doubtful Certain Doubtful Certain Total Doubtful Total Dou btful Total
O-Balloon 46 30 76 15.6 10.2 25.8 57 37 94 18.3 11.9 30.2 27 1/ 38 21.4 6.7 30.1 42 23 65 8.8 4.8 13.6
1-Astronomical 8 10 18 27 3.4 6.1 32 11 43 10.3 3.5 13.8 26 // 37 20.6 8.7 29.3 84 55 139 17.6 11.5 29.1
2-Aircraft 36 33 69 12.2 11.2 23.4 26 2.7 53 8.4 8.9 17.3 7 6 13 5.6 4.8 10.4 4# 76 70 9.2 5.5 14.7
3-Light Phenom. 5 2 7 1.7 0.1 2.4 4 1/ 23 1.3 3.6 0 7 2 0.0 1.6 3 / 0.6 0.2 0.8
4-Birds DITUS 00 0.000 0 0.0 0 0 0.0 00 ld 1/2 -0.20.70.4 0.2 0.4
5-Clouds, Dust, etc. 0 3 3001.0 1.0 1 1 3 3 00 1.0 101 2 0.3 0.6 0.6 / 0.8 0.0 / 0.2 0.0 0.2 0.0 0.2
C C 6-Insuffic. Info. 21 0 21 7.1 0.0 7.1 23 0 23 021 1.1 0.07.123 0 23 7.4 7.4 0.0 74 60 0 6 6 4.8 4.8 90090 90090187 18.7 0.0187
7-Psychological 4 4 2 6 1.4 0.7 2.1 9 0 26 1.4 0.7 2.1 9 2.9 0.0 29 3.2 0.0 3.2 50 5 1.0 0.010
8-Unknown 82 82 082 2190.027961 0 61 2190.027961 061 19.6 0.0 19.6 /9 9 0 19 019 15./ 15.1 0.045.1790 79 0.025.179079 16.6 0.016.6 0016.6
9-0ther 9 3 12 31 1.04.1 11 4 153.5 3 12 37 1.0 4.1 11 4 15 3.51.34.8 4 2 6 3.2 1.6 4.819 3 22 1.3 4.8 4 2 63.2 1.6 4.819 322 4.0 0.6 4.6
Total 211 8329471.828.2100.227 84311 73.027.0100. 943212674.625.4100.36810947777122.9100 211 8329471.828.2100.227 8431173.027.0100.94 32 12674.625.410.36810947777122.9100
TABLE A205 TABLE A205 EVALUATION OE UNIT SIGHTINGS EOR ALL YEARS B4 NUMIBER OF OBJECTS EVALUATION OE UNIT SIGHTINGS EOR ALL YEARS BY NUMBER OF OBJECTS
PEe SIGHTING FOR DURATION OE SIGHTING TWO OBJECTS
5 SECONDS 5 SECONDS OR LESS 6-10 SECONDS 11-30 SECONDS 31-60 SECONOS
Number Per Cent Number Number Per Cent Per Cent
Evaluation Doubthul Doubtul Certain Doubtful Total Doubtul Total Certain Doubtful Total
0-Balloon 0 0 00 / / 3 3 4 4 4.2 125/6.7 C od 0.0 0.0
1-Astronomical / 4 5 6.2 25.0 31.2 0 2 0.0 0.0 16.7 D 0 1 / 11.1 11./
2-Aircraft 3 2 41 6.218.8 25.0 3 / 1 4 250 250 8.3 33.3 03.3 6 1 5/1 25.0 251 20.845.8 208.159 11./ 33.3 733 44.4
3-Light Phenom. O 1 / 6.2 0 D ad 0.0 OD 0 0D 0.0 111 11./
4-Birds 0.0 0 00 0 0.0
5-Clouds, Dust, etc. O 0 0.0 00 0 0.d 0.0
6-Insuffic. into. 0 2 12.5 0 83 0.0 8.3 1 2 8.3 / 11.1 11./
7-Psychological 0 0.00.0 a 0 2 8.3 0.0
B-Unkno wn H 0 4 25.0 0.025.0 5 41.7 0.04.7 3 312.5 0.01252 O 2 22.2 0.022.2
9-0ther 0 0 0.00.000 O D 00 od0.01 124.24.284000 0.0
Total 8 8 1650.050.0100. 9 31275.025.0100. 15 92462537.5100. 4 5 944.455.6100.
6l SECONDS - 5 6-30 OVER 30 MINUTES DURATON NOT STATED
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Doubtful Total Total Certain
G-Bailoon 6 7. 13 11.813.7 25.5 4 10 14.0 9.3 233 / 4 231 77 308 3 2 5 6.0 4.0 10.0
1-Astronomical 0 2 3 4.7 7011.7 / 0 1 7.7 0.0 77 5 6.0 4.0 10.0
2-Aircraft 13 // 24 255 21.6 471 6 8 14 14,018.6326 2 3 5 15.4 23.1 38.5 10 4 /4 20.0 8.0 26.0
3-Light Phenom. O 0 00 3 3 70 Z0 D 0.0 / 20 0.0 2.0
4-Birds O 0.0 00 C 0 0.d 0.0 00 0 O 2.0
5-Clouds, Dust, etc. O D 0.0 0.d 0.000 1 O 0 0.0
6-Insuffic. info. 023.9 0.0 3.9 0 2 4.7 0.04.7 0 2 D.0 15.4 7 7 14.0
7-Psychological 1 1 220204.0 0.d 0.00.0 2 0.00000 0 0 0.0
&-Unkuno wn 8 0 815.7 0.015.7 O1 14.0 0.0/4.0 0 77 0.0 7.712 012 24.0 00240
9-0ther 2 0 2 3.9 0.0 3.9 3 0 37.0 0.070 0 00 0.00.00.0 4 2 6 8.0 4.012.0
Total 32/95162737.310028154365.134.9100.941369.230.8100.40 7050 80.020.0/100.
235

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TABLE A206 EVRLUATION OE VNITSIOHTINGS FOR ALL YEARS BY NUMIREU OE OBUECTS
Pee S/6HTIN6EOR DURATION OE SIGHTING THREE TO TEN OBJECTS -
5 SECONOS OR LESS 6-10 SECONDS 11:30SECONOS 31-60 SECONDS
Per Cent Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Certan Doubthul Total Certain Doubtful
D-Bail aon 0 2 0.0 7.1 71 0 0D 00 / 4.8 4.8 0 0.0 -
I Astronomical 3 0 3 10.7 0.0 10.7 0 00 / 48 4.8 / 0.0 6.7
2-Aircraft 5 2 7 17.9 2.1 25.0 3 0 3 30.0 0.0300 8 1/ 38.1 14.3 524 6 / 7 400 6.7 46.7
3-Light Phenom. / 0.0 36 3.6 2 2 0.020020.0 0 D 0 00 0.0 0 / 0.0 6.7 67
4-Birds 2 4 6 7.1 14.3 214 / / 00 100100 1 0 4.9 0.0 4.8 1 2 6.7 6.713.4 I
5-Clouds, Dust, etc. 0 0.0 0 00 000d O 0.0 00 O 0.0
6-Insuffic. info. 2 0.0 71 0 7 10.0 210d O 00 00 0 0.0
7-Psychological 0 0 00 0.00.0 0.0 00.00 a0 0.0 0 00 00 0.0
8-Unkno wn 5 05 12.9 00179 0 3 30.0 0.03007 7 33.3 0.0 4 H 26.7 0.026.7
3-0ther 202210071 0 0 0.0 0.0 ad 0 0 0 0.0 000 0.00.0 0.0
Total 1992867.932.1007 3 10 7203.0100.1652176.223.8100. 11 41573.326.7100.
-
61 SECONDS.5 MINUTES -30 MINUTES OVER 30 MINUTES DURATION NOT STATEP
Number Per Cent Number Per Cent Number |
Evaluation Certain Doubtful Total Certain Doubthul Doubtful Total Certain Totai Doubitu Total Dou btful Total
G-Balloon 3 4 2.2 6.7 8.9 3 6 5.4 5.4 10.8 D 5 16.7 o.d 0 5 6.2 0.0 6.2
1-Astronomical 2 00 4.4 4.4 0 0 0.0 0.0 2 5 7 6.7 6.7 231 0 3 3 0.0 3.8 38
2-Aircraft 6 8 14 13.3 17.8 31./ 8 9 17 14.3 16.1 30.4 0 / 3.3 0.0 3.3 17 4 21 21.2 5.0 26.2
3-Light Phenom 2 3 22 44 6.6 2 4 3.6 3.6 7.2 O 0 0.0 0.0 00 0 / 1.2 0.01.2
4-8irds -orus 0 0.0 0 o0 1 1.8 1.8 00 0.0 / 2 2 12 12 1.2 1.2 2.4
5-Clouds, Dust, etc. 0 0 0.0 0.0 00 d 0 0 0.00.00.0 0.0 000 D 0 o0 od 00.00 00 D 0 a.0 a.d 0.0
6-insuffic. info. 6 06/3.3 0 6 13.3 0.013.310 0.0 13.310 0/017.90.0/7.91 01 0/0 17.9 0.017.9 / 0 3.3 3.3 0.0 0.0 /9 19 01923.8 O 23.8 23.8 | -
7-Psychological 0 0.0 222.20000.0 22 22000 0.00.0 0 / 0.0 3.3 3.3 1 2 1.2 1.2 24
8-Unkno wn 8-Unknown 140 /431.1 0.031.1150152680.026812012 0031.115 0/52680.026812 0 12 40.0 0.0400 18 0/8 18 18 22.5 0.0 225 225
9-0ther 9-0ther 1 0 1 2.20.02.2 1 231.83.65.4 3 0 3 1 0 1 2.2 0.02.2 1 231.83,65.4 3 0 3 10.0 0.0100 0.0 9 0 911.2 11.2 0.0 11.2
1
Total 29 164564.435.6100. 3917 5669.630.4100. 24 630 80.020.0100.71 98088811.2100 2916 4564.435.6 100.3917 5669.630.4100.24 63080.020.010071 98088811.2100
TABLE 9207 EVALUATION OF UNIT SIGHTINGS FOR ACL YEARS BY NUMBER OF OBJECTS EVALUATION OF UNIT SIGHTINGS EOR ALL YEARS BY NUMBER OF OBJECTS
DER DER SIGHTING FOR DURATION. OF SIGHTING, ELEVEN OR MORE OBJECTS SIGHTING FOR DURATION. OF SIGHTING, ELEVEN OR MORE OBJECTS |
5 SECONDS oR OR LESS 6-10 SECONOS 6-10 SECONDS 11-30 SECONDS 11-30 SECONOS 31-60 SECONOS 31-60 SEC0NOS
Number Per Cent Number Per Cent Number Per Cent
Evaluation Certain Certarn Doubtful Total Doubtfuil Certain Doubtful Total Doubtul Certan Doubtul Total Dou btful
0-Balloon 0 0 ad 0.0 0.0 00 0 00 D 0.0 00 — -
1-Astronomical 0 / / 0.0 0.0 10.0 10.0 50 0 50.0 1 33.3 333 a 0 0.0
2-Aircraft 2-Aircraft 2 7 3 2 10.0 200 30.0 C D 0 0.0 00 00 0 A0 0.0 / 1u3 14.3
3-Light Phenom. O 0 0.0 .0 / 0.0 50.0 0 00 0.0
4-Birds 0 0 2d od 00 0.0 / 33.3 O 3 42.9 0.0 42.9
5-Clouds, Dust, etc. 0 O 00 D od 0.0 0 00 0.0
6-insuffic. into. 3 0 30.0 0.030.d 0 0.0 0.00.0 O 0 O 00 0.0 0000
7-Psychological 0 0.0 0.0 0.d 0 0 000 000.0 0 / 0.033.3 333 a0 0.0 0.000
B-Unkno wn 3 0 3 30.0 0.03000 000.0 000.0 0 O 0.00.0 3 0 3 429 00429
9-0ther 0 00 00 0000 0 000.00000 0 00 0.00000 0 00 0.0 0.0 00
Total 731070030.0100.1 1250050.0100. 0 3 30.0100.0100. 7 0 7 100.0 0.0100.
61 SECONDS.5 MINUTES 6-30 MINUTES OveR 30 DURATION NOT STATED
Number Per Cent Number Per Cent
Evaluation Doubthul Total Certan Doubtful Certain Doubtful Total Certain Doubthul Doubtul Total Certain Doubthul
G-Balloon 0 00 0.0 0.0 12.5 12.5 O 00 00 a0 0 0 0.0
1-Astronomical 0 / 1 0.0 10.0 0.0 25 125 3 0 15.0 15.0 / 5.3 0.0 5.3
2-Alrcraft 0 2 2 0.0 20.0 20.0 0.0 00 0 / 5.0 50 5.3
3-Light Phenom. 0 0.d 0.0 2 2 25.0 0.0250 0 5.0 5.0 0 0.0
4-Birds / 100 0.0 10.0 0 D 0.0 00 0 00 D
5-Clouds, Dust, etc. 2 0 0.0 00.00 O 0.0 000.0 0 0.00.0 0 0.0
5-insuffic. into. 0 0 6 00 00 0 /1 1250.0125 0 D 0.0 0.00.0 6 31.6 0.031.6
7-Psychological 0 00 0.000 0 00 0.00.d 1 O 5.0 00.5.0 20 2 10.5 0.010.5
&-Unikuso wn 31 O 3 3000.030.0 0 33750.0375/3 13 65.0 0065.0 70 7 36.8 0.036.8
3-0ther 30 3 300 00 30.0 0 0 00.00.000 01 0.0 5.05.0 2 0 2/0.5 0.0/0.5
Total 7 3 1070.030.0100.7 1 8 67.512.5100.18 220 90010.0100./8 //994.7 5.3100.
236

8
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TARLE A208 EVALUATION OE UNIT SIGHZINGS FOR ALL YEARS BY NUMBER DF OBJECTS
Pee SIGHTING FOR DURATION OE SIGHTING NUMBER OF OBJECTS NOT STATED
5 SECONDS OR LESS 6-10 SECONOS U1-30 SECONDS 31-60 SECONOS
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Certain Certain Total Doubtful Doubtful Total
0.-Balloon 00 0.0 / 50.0 50L 0 0 0.0
1-Astronomical 2 2 667 66.2 0.0 00 C 0 7.0 0.0
2-Aircruft 0 o.d 33.3 33.3 / 0 50.0 0.0
3-Light Phenom. 2 0 00 0.0 V C 0.0 D O 00 0.00.0
4-Birds 0 0 0.0 20 N D 00 00 .0 100.0 00100.0
5-Clouds, Dust, etc. 0 0 od O 00 00 0.0 0.0
6-Insuffic. into. 0 00 a0 0.0 0 ad 0.0
7-Psychological 0 0d0.0 a 0 0.0 0.00.0 O 0.0
&-Unkno wn 0 00 00 00 2 O 0000 00 0.0
5-Other 0 00 0000 2 000.000 0 00 0.0 0.000
Total 366.733.3100. 202/0.000100.1 01 100.0 0.0/00.
41SECONOS-5 MINUTES 6-30 MINUTES OveR 30 DURATON Ner STATEO
Number Number Per Cent
Evaluation Doubtful Total Certain Doubthul Total Doubtful Total Doubtful Certain Total Doubtful Total Dou btful
0-Balloon 2 2 40.0 00 400 0 / ad 33.3 0 a0 00 0.0 7 3.0 3.0
1-Astronomical 0.0 0 0 0.0 00 / 12.5 // 1 12 33.3 3.0 363
2-Aircraft 10 20.0 0.020.0 0 0 0.0 00 D 0.0 3 4 3.0 91 12.1
3-Light Phenom. 20.0 0.020.0 00 0 0 0.0 0.0 / 3.0
4-Birds rbiros D C ao / 33.3 0.033.3 2 0 2 0.0 25.0 O 0 0.0
5-Clouds, Dust, etc. 0 0.0 0.00.0 0.00.0 0 D 0.0
6-Insuffic. into. 10/200 10 200 0.020.0 0.0200 0 0.0 0.000 00 2 0 225.0 2 25.0 0.0250 8 24.2 242
7-Psychological 7-Psychological 0000.0 0 0.0 0.00.00 00 0.00.00 0 00 00 0.000 3.0
&-Unknown 8-Unknown a0 0000.0 00.0 0.00.0 1 0 1 1 33.3 0.0 33.3 202 0 2 25.0 25.0 0.025.0 50 515.2 515.2 0.0 15.2
9-0ther 0 0 0 0.00.000 d 0 0 0 00 0.00.000 d 00 00 00 0.0 0.0 1 0 /12.5 0.012.5 1 0 13.0 10/ 12.5 0.0/2.5 10 13.0 0.0 3.0 0.03.0
Total 5 0 5 100 0.0100. 2 1 366.733.3100. 8 0 8 1000 0.0100.27 63381.8 18.2100 5 0 5 1000 0.0100 2 1 366.733.3100. 8 0 8 1000 0.0100,27 6 33818 18.2100
237

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1
TABLE A209 EVBLUATION OE OBJECT SIGHTINGS EN AUL YEARS BY NUMBER OEOBIECTS
peR SIGHTINGFOR QURATION OE SIGHTING OINE OBJECT -
5 SECONDS oR LESS 6-10 SECONDS 11-30 SECONDS 31:60 SECONDS
Number Per Cent a Number Per Cent
Evaluation Certan Doubtful Total Certamn Certain Doubthul Total Doubtful Tota
0-Ballcon 3 6 1.3 2.6 2 5 2.2 3.3 5.5 3 5 8 2.2 3.6 5.8 9 18 7.5 Z5t 15.0
1-Astronomical 82 77 159 35.0 32.9 67.9 26 17 43 286 18.7 473 24 9 33 17.3 6.5 238 5 14 75 4.2 11.7
2-Aircraft 15 14 29 64 6.0 12.4 12 8 20 13.2 8.8 220 22 23 45 15.0 165 32.3 38 19.2 125 31.7
3-Light Phenom. 2 0.9 1.1 11 1 0.7 27 144 0 0.0 D0 0.0
4-Birds o 0 00 a0o.d 0.0 O 0.000 0 a000 -
S-Clouds, Dust, etc. 2.40.40 0 0.0 2 141.4 0 00 0000
6 insuffic. Info. 100 10 4.3 0.01.3 6 6.6 0.0 13 0139.4 009.410 010 8.3 0.083
7-Psychological 0.9 0 a0 0.0 0.0 2 13 1.4 072.1 202 17 a01.7
&. Unkno wm 15015 0.4 0064 14 0 14 15.4 0.015.425 02518.00.018.033 033 27.5 00275
9.0ther 7 3 10 3.0 1.3 4.3 2 0 2 2.20.0 2.2 4 4 8 29 29 5.8 3 2 5 2.5 1.7 4.2
Total 1369823458.1 141.9100. 6328 9169.230.8 100. 944513967.632.4100 893112074.225.8100.
1
61 SECONDS-5 MINUTES 630 MINUTES OVER 30 DURATION NOT STATEO
. Number Per Cent Number Per Cent |
Evaluation Doubtful Total Doubtul Total Doubtful Total Doubthul Doubttul Certain Dou bthul
O-Balloon H4 29 73 164 10.8274 55 31 86 19.9 11.2 31.1 23 1/ 34 204 27 30.1 37 18 9.4 4.6 14.0
1-Astronomical 6 8 14 22 3.0 5.2 29 11 40 10.5 A0 14.5 23 10 33 20.4 8.8 29.2 49 41 90 12.4 10.4 22.8 .
2-Aircraft 32 31 63 11.9 11.623.5 26 23 49 9.4 8.3 17.7 7 4 // 6.2 3.5 97 37 25 62 9.4 6.3 15.7
3-Light Phenom. 4 / 5 1.5 04 1.9 6 2.2 1.1 3.3 2 2 0.0 1.8 3 0 3 0.8
4·Birds 4-BIlOS 0 U 0.0a0 0d 0 0 0 avau 1010.010.010.01 00 0.0 0 o0 1/ 2 031 0.31 0.6 0.3 0.6
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 3 3 0.0 1.1 1.1 1 1 2 0.4 0.4 0.8 1 3 0.0 1.1 1.11 2 0.4 0.8 01 / 0.9 0009 00 09 1 0/ 0.30.00.3 0 10.3 0.0 03
6-Insuffic. info. 18 18 0 18 6.7 0.06.720 0 20 72 0.07.2 5 0 5 018 6.7 0.06.7 20 0 20 7.2 0.07.2 5 4.4 0.04.4 0.0 870 8722.1 87 D 8722.1 0.022.1
7-Psychological H 2 6 1.50.72.2 9 0 9 3.2 0.03.2 4 6 150.72.2 9 0 9 3.2 0.03.2 4 043.5 35 0.03.5 50 5 0 51.3 5 1.3 0.01.3
B-Unknown 8-Unknown 76 0 7628.4 0.028448 0481730.017.317 017/5.0 7628.4 0028.448 04817.30.017.317 017/5.0 0.015.0 0.0 15.0 69 0 6917.5 0.017.5 69 06917.5 0.0175
9-0ther 9 1 10 3.4 0438 11 3 14 4.0 1.15.1 4 2 6 3.5 1.85.3 91 10 3.4 0.4 38 11 3 144.0 1.1 5.1 4 2 6 3.5 1.8 5.3 17 3 204.3 0.8 5.1 17 3 20 4.3 0.8 5.1
Total 93 75 26872028.0100.2057227774.026.0 100 84 29113 74.325.7100,306 8839477.722.3100 193 75 26872.0 28.0100.205 7227774,026.0 10084 2911374.325.7100,3068839477.722.3100.
TABLE A210 TABLE A210 EVALUATION OF OBJECT SIGHTINGS FOR ALL YEARS BY NUMIBER OF OBJEETS EVALUATION OE OBJECT SIGHTINGS FOR ALL YEARS BY NUMIBER OF OBJEETS
PEC PEU SIGHTING FOR OURATION OE SIGHTING SIGHTINGFOR DURATIONOE SIGHTING TWO OBJECTS OBJECTS
5 SECONDS OR LESS 5 SECONDS OR LESS 6-10 SECONDS 6-10 SECONDS 11-30 SECC4OS 11-30 SECCVOS 3/-60 5ECONOS 31-60 SECONDS
Per Cent Number Number Per Cent
Evaluation Total Doub thul Doub thu Certain Doubtful Total Certain Doubthul Totai Doubtful Doubtful Total Dou bihul Dou btful
0-Balloon 0 0.0 00 0 / 3 3 4 4 4.3 13.0 17.3 D 0 0.0 00
1-Astronomical / / 3 4 4 6.7 20.0 267 2 2 2 182 182 18.2 0 0.0 0 / 7 0.0 11.1 11
2-Aircraft / 3 67 6.7 200 20.0 26.7 262 3 / 11 27.3 27.3 9.1 91 36.4 36.11 6 5 // 1/ 26.1 26.1 21.7 217 47.8 4781 1 2 14 4 11.1 33.3 444
3-Light Phenom. 0 ed 6.7 67 00 0.0 0 0.0 / 11.1 1./
4-Birds 0 0 0.0 D 00 00 0.0 4
5-Clouds, Dust, etc. 0 0 0 0.0
5-insuffic. Into. 0 13.3 13.3 I / 9.1 0.09.1 2 8.7 0.0 0 / 11./ 11/
7-Psychological D 00 0.0 0.00.0 0 2 8.7 87 0.0
B-Unkno wn 40 4 267 0.026.7 41 e 36.4 0.036.4 0 2 8.7 0.0 97 O 222 0.0222
9-0ther 000 0.0 000.0 0 0 0000.0 0.0 1 1 2 4.3 8.6 0 0.0 0.00.0
Total 8 715 53.346.7100. 8 3 11 72727.3100. 14 9 2360.939.1V00. 4 5 9 44455.6100.
61 SECONDS 5 MINUTES 6-30 MINUTES Over 30 MINUTES DURATION NOT. STATEp
Number Per Cent
Evaluation Doubtful Doubtful Total Certain Certain Doubtful Total Doubitful Total
0-Balloon 6 // 13.6 11.4 25.0 5 3 8 13.9 8.3 222 / 4 250 8.3 333 2 H 4.3 43 8.6
1-Astronomical 0 0.0 5 5.6 8.3 139 0 00 3 2 65 4.3 10.8
2-Aircraft /3 8 21 295 18.2 477 5 5 10 3.9 13.9 270 2 3 16.7 25.0 417 9 12 19.6 6.5 261
3-Light Phenom. 00 3 0 3 8.3 0 0.0 0.0 2.2 2.2
4-Birds od 00 0 0.0 0b 000.0
5-Clouds, Dust, etc. O 0 0.d 0.0 O 00 0.0 00 D 0000 0
6 insuffic. info. 45 0.04.5 0 / 2.8 0.028 2 16.7 0.0167 70 7 0.0 15.2
7-Psychological 1/ 2 23234.6 a 0 0 0.0 0.0 00 0 0 0 0.000 080 0.0 00
8-Unknown 70 715.9 0.0 15.9 6/6.7 00167 10 8.3 0.08.311 0 1 23.9 0.0 23.9
1-0ther 101230.02.7 30 38.3 008.3 0 0 0 0.00.00.0 42 6 8.7 4.3/3.0
Total 30/44468.231.8100.2511 3669.430.6100.8412 66783.3100.37 94681.419.6100.
238

TablE A 211 EVALUATION DE OBJECT SIGHTINGS FOR ALL YEARS BY NUMBER OF DBJECTS
PEe SIGHIING FOR eURerON OF SIGHTING THREE TO TEN OBJECTS
5 SECONOS OR LESS 6-10 SECONDS 11-30.SECONOS 31-60 SECONOS
Number Number Per Cent
Evaluation Doubtful Total Doubtful Certain Doubtful Total Certain Doubtul
O-Balloon 2 0.0 7.1 0 00 00 0 1 5.3 D 00 0.0
1-Astronomical 3 0 101 0.0 102 0 0.0 5.3 O 00 6.7
2-Aircraft 5 7 179 7.1 25.0 0 2 222 0.0222 3 10 368 15.8 526 7 40.0 6.746.7
3-Light Phenom. / 00 36 36 0 2 0.022,2222 0 0.0 00 7 0.0 6767
4-Birds 2 7114.3214 0 / 0.011.1 11.1 / 5.3 00 5.3 6.7 6.7/34
5-Clouds, Dust, etc. 000.0 00 00 0 D 0.0 0.0 0.0 00 00 0.0
6 Insuffic. Info. 02210.0.21 0 / 11/ 0.011.1 O 0.0 00 00 0 0.d 0.00.0
7-Psychological 000.00.0.00 0 0.0 0.00.0 0 00 0.0 D
&-Unknown 5 0 5 17.90.017.5 3 0 3 33.3 0.033.3 O 6 31.6 0.0 3/.6 04 26.7 0.0267
9-0mer 202210.071000 0.0 00000 00 0.0 0000000 0.01.000
Total 19 92867932.110063966733.3100.14 51973726.3001141573.326.7100.
61 SECONDS- 5 6-30 MINUTES Over 30 MINUTES DueanoN Nor STATED
Per Cent Number Per Cent
Evaluation Doubtful Total Certain Doubtful Doubtful Total Certain Doubtful Total Dou btful Total
O-Balloon / 1 2 2.4 2.44.8 2 3.8 5.8 9.6 3 0 3 12.0 0.0 12.0 4 D 4 6.l 0.0 6.1
1-Astronomical C 2 4.94.0 0 00 0.0 0.0 2 5 7 8.0 20.0 28.0 0 3 4.54.5
2-Aircraft 6 8 14 14.6 19.5 34 7 9 16 135 17.3 308 0 0.0 13 4 17 19.7 6.125.8
3-Light Phenom. 2 3 2.4 4.8 1.2 4 3.8 3.8 7.6 0 0.0 0.0 0 1.5 001.5
4-Birds d 00 O l 0 000.0·000110.01.91.9 20 00·20 1/ 0.0 1.9 1.9 D 0 00 0.00.0 1 1 21.5 0.0 / 2 1.5 1.53.0 3.0
5-Clouds, Dust, etc. 0 D 000.000 0000.00.00.0 000.0.00 000 0.0 0000 00 O 0 0.0000.0 00 00.00.0 0.0 0.0 00 0.0
6-Insuffic. Into. 6-Insuffic. info. 5 05 12.20012.210 01019.20.019.2 1 01 4.0 0.040 150 1522.7 0.022.7 12.20.0 12.210 010 19.2 0.0 19.2 D / 4.0 0.040150 1522.7 0.0 22.7
7-Psychological 0 7 002424 00 0000.00.0 0 1 1 002424 0 0 0000.00.0 0 / 0.0 4.0401 121.51.530 0.0 4.0 4.0 1 1 21.5 1.5 30
8-Unknown 13 0 13 31.70.031.713 013 2500.0 25.010 010 40.0 0.040016 0 16 24.20.0 24.2 0 13 31.70.0 31.713 013 2500.0 25.0 10 010 40.0 0.040.016 0 16 242 0.024.2
9-0ther 0 12.40.02.4 1 231.9 3.8 5.7 303 12.0 0.012.06 0 6 9.10.0 9.1
Total Total 27 144/65.934110235 175267332.700196 2576.024.0100.57 9 6686.413.6100 27 14 4/65.9 341102. 35 175267.332.700. 19 6 25 76.024.0100.57 9 66 86.4 13.6100
TABLE A212 EVALUATION OE OBJECT SIGHTINGS FOR ALL YEARS BY NUMBER OE OBJECTS EVALUATION QE OBJECT SIGHTINGS FOR ALL SEARS BY NUMBER OE OBJECTS
PER SIGHTING FOR DURATION,OE SIGHTING ELEVEN OB MORE OBJECTS PER SIGHTING FOE DURATION,OE SIGHTING ELEVEN DB MORE OBJECTS
5 SECONOS OR LESS SECONOS OR LESS 6-10 5ECONOS 6-10 5ECONOS 11-30 5ECONDS 11-305ECONO5 31-60 SECONDS
Per Cent Per Cent Number Number
Evaluation Doubtful Total Doub tful Certain Certain Doubtful Doubtful Total Total Dou btful
0-Balloon 0 0.0 0 / 50.0 50.0 00 a 0.0
1-Astronomical a 00 o0 od0 0.0 0.0 1 / 33.3 33.5 33.3 0 0
2-Aircraft 2 3 14.3 28.6 H2.9 / 50.0 0 00 0 0.0 00
3-Light Phenom. 0 0.0 0.0 00 0
4-Birds 0 D 0.0 0000 0 1 / 0.0 33.3 2 40.0 0.040.0
5-Clouds, Dust, etc. C.0 00 0 0 0.0 C 0.0
6-Insuffic. Info. / 14.3 a 0 ad 0.0 00ad D 0.0 00
7-Psychological 0 00000 0 0.0 00 a / 0.033.3 33.3 0.00.0
8-Unknown 3 0 342.9 0042.9 0 00 0.0 01 0360.0 0.060.0
9-0ther 0 0 0 0.00.00.0 0 0 0 a0 0.0 0.0 0 0 0 0.0 0.00.d 0 0 0 00 0.0 0.0
Total 5 2771.428.6100. 1 1 250050.0100. 0330.0100.0100. 505100.0 0.0100.
GISERONOS -5 MINUTES 6-30 MINUTES OUER 30 MINUTeS DURATION NOT STATEO
Number Per Cent
Evaluation Total Certain Doubtful
0-Balloon Q 0.0 / 12.5 0 0.0 0 ao
1-Astronomical 0 / a.0 10.0 0.0 12.5 125 3 3 200 0.0 6.2
2-Aircraft 2 2 0.0 20.0 0 0 0.0 / 6.7 67 6.2
3-Light Phenom. 00 0.0 2 25.0 0.025.0 / 6.7 0.06.7 2 0 0 0.d ad
4-Birds 0 1 10.0 0.010.0 00 0.00.0 V 0.0 0.00.0 0 0.0 o.d
5-Clouds, Dust, etc. 0 0 0.0 0.00.0 000.0 a 00 0000 ad 00
6-insuffic. info. 0 0.0 0d00 O 112.5 0.0125 0.0ad 6 97.5 375
7-Psychological 0 0.d 0.00.0 00.0 0.00.0 6.7 0.067 2 0 2 12.5 1.0
&-Unkno wn 0 3 30.0 0.030.0 3 0 337.5 0.0375 8 6 53.3 0.053.3 5 5 31.2 0.0 31.2
9-0ther 3 0 330.0 0.030.00 0 a0.0 0.00.0 0 1 1 0.0 6.76.7 1 0 6.2 0.0
Total 7 3 10 70.030.0100. 7 1 887.512.5100.1321588.713.3100.15 71693.26.2100.
239

1
TABLE A213 EVALUATION OE OBJECTSIGHTINGSEOR RLL YEARS BY DUMBEK OE ORJECTS
PEe SIGHTING FOR DURATION, OE SIGHTING, NUMBER, DE OBJECTS NOT STATER I
5SECONOS ae Less 6-10 SECONDS 11-30 SECONOS 31-60 SECONDS
Number Per Cent Namber Per Cent Number
Evaluation Doubtful Doubtful Total Certan Doubthul Certain Doubtful Total
0-Balicon 0 0d ao - I 5D0 500 0 0 ad 0.0 -
1-Astronomical 0 / 500 50.0 0 20 0.0 0 0.0
2.Aircraft 0050.0 / 0 1 500 0.0 50.0 0 00 0.0
3-Light Phenom. 00 D 0.0 0 a0 00
4-Birds 0 30 00 6 O 0 0.0 0.0 1000 -
S-Clouds, Dust, etc. 0 0 0.0 00 O 0.0 00
6-Insuffic. inko. 0 0 a0 0.0 00 a0
7-Psychological 90 0.0 a 0 0 0.0 00
&-Unknown 0d 00 N 0 0 0.0 O 0.d
3-0ther 0 00 0.0 0.00.0 0 00 0.00.0
Total 12 50050.0100 2 024000 0.0/00 101V00.d0.0/00
1
61 SECONOS-5 MINVTES 6-30 MINUTES OVER 30 DURATON NOT STATEP
Number Per Cent Num ber -
Evaluation Certain Doubtful Total Doubthul Dou biful
0-Balloon 2 2 40.0 1 00 33.3 0 0 0.0
1-Astronomical 0.0 00 0 0 / 14.3 9 10 34.6 3.8 38.4 0
2-Aircraft / 20.0 0.0 0 0 20 O 00 0.0 2 3.8 7.6
3-Light Phenom. / 0 20.0 33.3 00 0 a.0 0.0 / 0.0 3.8 3.8
4-Birds 4-biros D 0.0 0 D a0 2 28.6 VUO 0 0 U.U 0.01
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 0.00.0 2 0.d a0 00 O ed 0 0 0.0 0.000 0.0 00
6-insuffic. Info. 1 / 0 / 20.0 20.0 0.0 200 0.d 0.0 2 2 28.6 0.0286 0.028.6 80 8 8 30.8 308 0.030.8 1 1
7-Psychological 0 0 0.0 0.0 0 0.00.0 d1 a / 1 ao 3.83.8 3.8 3.8
8-Unknown O 0 2 0 / 33.3 0.0 14.3 0.014.3 30 3 11.5 11.5 0.011.5 0.0
9-0ther O 0 00 0.000 0.00.0 0 0 0 0.0 101 101 14.30.014.310/ 14.30014.3 10 / 3.8 003.8
- -
Total 5051000 0.0100.2 1366733.3100.70 7 100.0 0.0100.2242684.615.4100. 5 051000 00100.2 1366733.3100. 70 7100.0 0.0100.224 2684.615.4100.
— -
240

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TABLE A214 EVRLVATION OE ALL SIGHIINGS EOR YERRS BY
GEOGRAPHIC LOCATION
TOTaL NORIA Sourn AMERICA EVROPE
Number Per Cent
Evaluation Total Doubthul Doubtful Total Certain Doubtful Total
O-Balloon 210 179 449 84 5.6 140 251 169 420 84 5.74.1 0 0.0 20 0.0 12 / 13 15.0 1.3 16.3
1-Astronomical 415 341 816 148 10.7 255 445 829 772 4911.1 26.0 0 4 0.0 40.0 3 7 3.8 5.0 8.8
2-Aircraft 354 288 642 11.19.0 20.1 34/3 260 603 11.6 88 204 0 2 20.0 00 5 11 16 6.3 13.8 20.
3-Light Phenom. 82 24 56 1.0081.8 31 23 54 1.00.8 18 0 0 0.0 20 0.d0 / 00 1.3
4-Birds 19 10 29 0.4 0.3 0.9 14 9 23 0.5 0.3 0.8 1 0.0 1.3
5-Clouds, Dust, etc. 12 1325 0.40408 9 13 22 0.3 0.4 0.7 e eeee.oede 0.0 0.0
6-Insuffic. into. 298 0.298 9.3 0.09.3271 027/ 2.1 0.0 9.1 2 0 220.00.0 20.0 16 014 20.00.020.0
7-Psychological 38 10 48 1.2 0.3 1.5 38 2 47 1.3 0.3 14 0 1 10.0 10.00.0 0 0 0 0.0 2.00.0
8-Unkno wn 689 0689 21.5 0021.5638 043821.50.0 21.51 0 1 10.00.010.0 14 014 17.5 0.0 17.5
9.0ther 112 35 147 3.5 1.1 4.6 97 22 119 3.3 0.74.0 0 0 0 0.00.0 0.0 3 9 12 3.8 11.3 15.
Total 2299900 3199 1.9 28.1100. 2135 834 2969 71.9 28.1100. 4 1 10 90.010.0100.53 27 80 66.3 33.8100.
*
4si4 AFRICA AUSTRALIA
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Doubtfu! Dou btful
0-Bailoon 1 8 15 6.1 1.0 13. 0 / 0.0 40 4.0
1-Astronomical 18 7 25 15.7 6.1 21.8 1 8 28.0 4.0 32.0
2-Aircraft 4 10 14 3.5 87 12.2 0 7 0.0 28.0 28.0 6
3-Light Phenom. 1 0 0.9 000.90 0 o.d 0.00.0
4-Birds 5 43 0.0430 0 0.0 0.0 0.0
5-Clouds, Dust, etc. 3 0 3 2.6 0.02.6 0 0 0 0.00.00.0 0 3 26 0.02.60 000.00.00.0
6-Insuffic. Info. 4 04 35 0.03.5 5 0520.00.020.0 4 04 35 0.03.55 0f 0
0520.00.020.0
7-Psychological 200 000.0 0.00 00 000·0.00.0 0000.d200.0 e 0e.dnd0.0
8-Unknown 320 3227800 27.8 4 0416.00.016.0 32 03227800 27.840 416.00.016.0
9-0ther 1241410.435 13.9000 0.00.00.0 12 4 1410.4 35 13.90 0.0 2.00.00.0
Total 84 29 1157825.2100. 16 9 2564.036,0100. 8429 11577825.2100.16 9 2564.036.000.
TABLE A215 EVALVATION QE UNIT SIGHTINGSEOR SIGHTINGS EOR ALL YEARS BY
GEOGRAPHIC LOCATION
TOTAL NORTH AMERICA SOUTH EvROPE
Number Per Cent Number Per Cent
Evaluation Doubttul Doubtful Doubthul Total Certain Dou btful Total
0-Balloon 228 228 150 378 6.9 59 148 214 143 143 357 90 6.0 0 0 0.0 00 7 8 8 10.9 1.6 12.5
1-Astronomical 1-Astronomical 382 256 638150 638150 10.0 359 246 605 15.1 10.4 10.4 25.5 0 2 25.0 250 0.0 3 3 4.7 47 6.3 110
2-Aircraft 292 235 52711.4 9.2 20.281 213 494119 49411.9 9.020.9 9.0 20.9 2 0 0.0 00 25.0 5 813 1.8 7.8 12.5 12.5 20.3 20.3
3-Light Phenom. 32 21 53 1.3 0.$ 21 3/ 20 51 1.3 0.8 2.1 0 0.2 / 0.0 1.6
4-Birds 13 10 23 0.5 0.4 0.9 11 9 20 0.5 0.4 09 0 0 0.0 0.0 00 011 1.61.6
5-Clouds, Dust, etc. 3 7 10 0.1 0.3 1.3 2 7 9 0.1 0.3 0.4 0 00.00.000000 0.0 0.00.0
6-Insuffic. info. 261 026/1020010.2236023610.00010.0 2 02 25.00.0 25.0 14 014. 21.9 0.0219
7-Psychological 36 9 45 1.40.4 1.8 36 8 44 1.50.3 1.8 0 1/ 0.012.512.50000.00.000
&-Unknown 497 049719.50.0 19.5455 045519.20.0 19.2 1 0 112.5 0.012.5 11 011 17.200 17.2
9-0ther 92 28 120 36 1.1 47 79 20 99 33 0.8 4.1 0 0 0 0.0,0.00.0 3 6 9 47 9.4 14.1
Total 1836 716 2552 71.9 28.1100.1704 666 237071.9 28.1100. 7 1887.5 12.5 100. 43 21 64 67.2 32.8 100.
*
ASIA AFRIEA AUSTRALIA
Number Per Cent Number Per Cent
Evaluation Doubtful Certain Doubtful Total Certain Total
O-Balloon 1 5 12 19 56 13.5 0 0.0 47
1-Astronomical 12 5 17 13.5 5.4 191 6 / 7 286 47 333
2-Aircraft 4 12 14 45 11.2 157 0 4 0.0 19.0
3-Light Phenom. 11 0011 0 0 0.0 00 VV
4-Birds 2 0 2 0.0 2.2 00.0 0.000
5-Clouds, Dust, etc. / 0 1./ 0.0 1/ 0.000 0.0
6-Insuffic. into. 4 0 4 4.5 00 45 0 523.8 0.023.8
7-Psychological 0 00 000 0 00.00000
&-Unkno wn 26 0 26 29.2 00 29.2 4 0 419.00.0 19.0
3-0ther 10 2 12 11.22.2 134000 0.000 0.0
Total 67 22 89 153247 100. 15 6 2171.4 286100.
* SEE FOOTNOTE ON NEXT PAGE.
241

1
1
TABLE1216 EVALVATION OF OBJECT SIGHTIN6S FOR ALL YEARS B9
GEOGRAPHIC LOCATION
TOraL NoRTH AMERICA SOUTH AMERICA EVROPE
Number Number Per Cent
Evaluation Doubtful Doubthul Certain Doubtful Total
0-Balloon 207 131 338 94 6.0 154 193 126 319 95 6.2 15.7 0 0 0.0 0. 0 7 8 11.5 1.6 13. -
I-Astronomical 274 205 479 12.5 9.3 21.8 255 197 452 12.5 9.7 22.2 0 2 25.0 0.0 3 Z 4.9 6.6 11.5
2-Aircraft 265 209 474 12.1 2.5 21.6 254 191 44512.5 9.4 21.9 2 0 2 25.0 0.0 25.0 5 7 12 8.2 11.5 197
3-Light Phemom. 30 18 48 140.8 2.2 29 14 0.8 2.2 0 0 0.0 0.0 / 1.6 4.6
4-Birds 12 10 22 05 0.4 0.9 10 9 19 05,0.4 0.9 0 od 00 0.0 1 / 1.6 16 I
5-Clouds, Dust, etc. 3 7 10 01 0.3 04 2 7 9 0.1 0.3 0.4 0 0 0.0
6 Insuffic. Info. 240 0.24010.9 0.0,10.9 25 0 215106 0.0 106 2 2 25.0 0.0 25.0 14 0 14 23.0 00 23.0
7-Psychological 35 9 44 1.6 04 2.0 35 8 43 1.7 0.4 2.1 0 1 1 0.0 12.5 12.50 e0 0.0
8-Unknown 434 0 434 19.7 0.0 18.7 395 0 395 19.4 0.019.4 1 0 1 12.5 00 12.510 0 10 116.4 0.0 /6.4 1
9-0ther 85 24 109 391.1 5.0 74 17 91 36 0.8 4.4 0 00 00 0.00.0 3 5 8 49 8213
Total 1585613 219812.127.9100 1462 5722039 71.928.1 100.7 1 887.512.5/100. 4219 61 68.931.1100
* 1
Asia RERICA AUSTRALIA
Per Cent Number 1
Evaluation Doubthul Doubtful Certain Doubthul Doubthu Total Dou btful
0-Balloon 7 3 10 9.3 40 13.3 0 / 20 5.0
1-Astronomical 3 12 12.0 40 16.0 5 / 6 25.0 5.0 300
2-Aircraft 4 7 11 5.3 9.3 146 0 4 4 0.0 20.0 20.0 t
3-Light Phenom. / 0 1 1.3 13 0.0 00
4-Birds 2 2 2.7 0.02.7 0 O 0.0 A
5-Clouds, Dust, etc. / 1 1.30.01.300000 1.3 0.01.3 0 O 00 0.0
6-Insuffic. Into. 4 0.4 4 530.053 5 0 5 53 0.0535 0 5 25.d 00 25.0 0 1 -
7-Psychological 0 00 0.0.000000 0 0.00.0000 20 0.0 0.0 N
8 Unknown 8-Unknown 24 02432.00.032.0 4 0420.0 02432.00.032.d40420.0 0.0 20.0
9-0ther 8 2 10 /0.72.713400 0 0.0 2 10 10.7 2.7 134 0 00 0.0 0.0
Total 60157580020.010014620700300100.
* TOTALS DO NOT AGREE WITH PREVIOUS TOTALS BECAUSE TWO SIGHTINGS OCCURRED AT UNKNOWN LOCATIONS. * TOTALS DO NOT AGREE WITH PREUIOUS TOTALS BECAUSE TWO SIGHTINGS OCCURRED AT UNKNOWN LOCATIONS.
I
242

-----
1947
117= 1948
3.7 % 205=
1947 6.4 %
97= 1948
3.8% 153=
194x 6.0%
79= 1948 1949 1949
3.6 395=
% 143= 236= 12.3%
6.5% 9.2 %
1949
0 186=
8.5 %
1950,
1950 209=
1952 1952 169= 8.2%
1501= 1501= 7.7%
68.3% 1951, 1951, 1950 1950
121= 5.5% 306= 306=
1952 1951, 9.6%
1722= 137=
67.4 % 5.4%
1952 1952, 1951,
I 2018= + 160=
63.0% 5.0% 5.0%
0
1
Object sightings All sightings Unit sightings
2199 =100% 3201 = 100% 2554=100%
FIGURE I FREQUENCY OF SIGHTINGS BY YEAR FOR OBJECT,
UNIT, AND ALL SIGHTINGS
A-7479
17

TABLE A217 EYALVATION DE ALL SICHTNGS FOR ALL YEARS BY
NORTH AMERICAN LOCATION
NORTH AMERICA UNITED STATES CANAeA Acaska
Number Per Cent
Evaluation Certain Doubtful Total Total Doubtful Certain Doub ful Tota
0-Balloon 251 169 420 8.4 5.7 141 241 163 404 8.6 5814.4 3 4 3.7 4.9 2 / 3 43 2.1 6.4
1-Astronomical 443 329 77214.911.121.0 40s 310 713 14.4 11.1 25.5 23 8 31 28.4 9.9 38.3 0 12 0.0
2-Aircraft 34326060511.688204329256 585 118 9.221.0 10 12 12.3 1.2 13.5 0 3 0.0 6.4
3-Light Phenom. 31 23 54 1.0 0.8 1.8 29 23 52 10 0.81.8 0 20 0.0 1 2.1 00
4-Birds 14 9 23 0.5 0.3 0.8 14 8 22 0.5 0.3 0.8 0 1 20 1.21.2 0 0 0.00.0
5-Clouds, Dust, etc. 91322030.4 0.7 9 12 21 0.3 04 0.7 0 0000 0.00.0 0 0 0.0 0.000
6-Insuffic Into. 271 0271 9.100 41261 0.26/ 93 0.0 9.3 4 0 44.9 00 492 2 4.3 0.043
7-Psychological 38 9 471.3 0.3 1.6 37 9 46 1.3 0.3 1.6 1 0 112 0.0 1.2 0 0 0 0.00.00.0
8-Unknown 638 0638 21.5 0.0 21.5 582 0 582 20.8 0.0 208 22 0 2227.2 0.0 27.2 22 022 46.8 00 46.8
9-0ther 97 22119 33 0.7 40 88 21 109 3.1 0.8 3.9 3 1 437 12 4.9 4 0 4 85 00 8.5
Total 2135 834 296971.928.1100.V9938022795713287100.166 15 8181.5 18.5100. 46  4797.9 2.1100.
MEXICO HAWALL
Number Per Cent Per Cent
Evaluation Certain Doubtful Total Doubthul Certain Doubtful Total
0-Bailoon 0 2 13.3 0.0 3 4 9.7 3.2 12.9
1-Astronomical 2 3 6.7 13.3 20.0 4 9 13 12.9 29.0 419
2-Aircraft 0 / 1 a0 67 6.7 2 3 3.2 6.5 9.7
3-Light Phenom. 1 0 / 4.7 6.7 0 0.0
4-Birds 0 2 0 0.0 00 20 O 2.0
5-Clouds, Dust, etc. 0 00 0.0 0.00.0 0 2.0 3.2
5-Insuffic. Info. 2 0 2133 2.0133 026.5 0.0 6.5
7-Psychological 00 0.00.00.00 0000 0.0
&-Unknown 0640.00.0 40.0 019.4 0.0 9.4
9-0ther 00 0000.00.0 2 0265 0.06.5
Total 123 1580.0 200100.18 13 31 58141.9100.
TABLE A218 EVALUATION UNIT SIGHTINGS FOR ALL YEARS B4
NORTH AMERICAN LOCATION
NORTH AMERICA UNITER STATES CANA0A ALASKA
Per Cent Number
Evaluation Doubtful Total Total Certain Doubtful Certain
O-Balloon 0-Balloon 214 143 357 9.0 60 15.0 205 137 342 22 6.1 15.3 3 4 4 7 50 6.7 1.7 11.7 2 / 3 5.9 2.9 8.8
1-Astronomical 359 246 605151 104 10.4 25.5 328 228 556 147 10.2 24.9 17 7 24 28.3 11.7 11.7 400 0 0 9 9 26.5 0.0
2-Aircraft 2-Aircraft 281 281 213 213 49411.9 9.0 208 49411.9 9.0208 272 272 210 482 12.2 9.421.7 0 5 83 8.3 0.0 8.3 3 0.08.3 3 8.8 0.0 0.0 88
3-Light Phenom. 3/ 51 1.3 08 2.2 29 20 491.3 0.92.2 000.00.d / 0 2.9 00 2.9
4-Birds 11 9 20 0.5 0.4 0.8  11 819 05 0.40.9 0 / 10.01.71.70 0 0.0 0000
5-Clouds, Dust, etc. 2 7 90.10.3 042 6 8 01 03 0.4 0 0 00.02.00.00 00 0.00.000
6-insuffic. Info. 236 023610.000100226 022610.10.010.14 04 6.70.06.72 02 59 0.0 5.9
7-Psychological 36 8 44 1.5 0.3 1.8 35 8 431.6 0.4 2.0 1 0 1 1.7 0.0 17 0 0 0 0.0 0.0 0.0
8-Unknown 455 045519.20.019.2418 0418 18.7 0.0 187 15 0 1525.00.025.0 13 013 38.20.0382
9-0ther 19 20 49 33 0.8 41 72 19 9/3.20.9 41 2 1 3 331.750 3 0 3 8.8 0.0 8.8
Total 1704 6642310 71.928.1 100. 1598 636 2234 71.5 28.5100. 47 13 60783 21.7 100. 33 1 34 97.1 2.9 100.
MEKICO HAWALL
Per Cent Number Per Cent
Evaluation Certain Total Total Doubtful Certain Doubtful Total Doubtful
G-Balloon 2 / 8.3 0.0 8.3 3 / 4 10.0 33 13.3
1-Astronomical / 2 3 8.3 14.7 25.0 4 9 13 15.3 30.0 433
2-Aircraft 0 / 0.0 6.3 1.3 1 2 3 3.3 6.1 10.0
3-Light Phenom. / 0 / 83 008.3 0 0.0
4-Birds 0 00 0000 0 00.8000.0
5-Clouds, Dust, etc. 0 0 0.0 00 00 0 1 0.0 3.3 33
6-Insuffic info. 2 16.7 0016.7 O 2 4.70.0 6.7
7.Psychological 2 0 0.0 0.00.0 0 00d0.000
8-Unknown 4 0 333 0.0 333 0516.70.0 16.7
9.0ther 000 0.00.00.02026.7006.7
Total 9 31215.025.0100.17 133056.743.3100.
243

6-Insuffic. Info. 2 0
7-Psychological 0 0.0 00
8-Unknown 0 395 19.40.0 19.4 359 0 359 18.7 00 18.7 14 0 14 29.20.0 29.2 13 0 13 433 0.0 43.3 1
395
9-0ther 74 17 91 36 08 45 67 16 833.5 0.8 43 2 1 3 4.2 2.1 2.3 3 0 3 10.0 0.0100
Total 1462512203471.9 28.1100. 1370546191671.5 28.5 100.38 10 4879.220.8 100. 29 130 96.73.3 100. 1
MEXICO HAWAU |
Per Cent Number Per Cent Humber Per Cont
Evaluation Doubtful Total Certain Doubtu Daw btful Total
0-Balloon 1 0 20 8.3 3 4 10.7 36 14.3 .
1-Astronomical / 2 3 8.3 16.7 25.0 3 8 1/ 10.7 28.6 39.3
2-Aircraft 2 / 0.0 8.3 / 3 3.6 1.1 10.7
3-Light Phenom. / 0 / 83 0.0 00
4-Birds 4-Birds 0 000.0000000 0 0000 O 20.0000.0 0.0
5-Clouds, Dust, etc. 0000000.001 20 200.0 0 10.03.6 36 / 0.0 3.6 36
6-insuffic. Info. 6-iInsuffic. Info. 202167 0.0 1.7 2 0 2 02 16.7 0.0 16.7 0 2 1.10.0 7.1 0.0
7-Psychological 0 00 0 000.00.00.0 0.00.00.00000.02.00.0 0.00.00.0
8-Unkno wn 8-Unknown 4 0 4 33.3 0.0 333 5 0 5 17.9 0.0 17.9 0433.30.0 333 5 0512.90.0 17.9
9-0ther 00000000.02027.10.07.1 00 000 000.0 2 0 2210.0 1.1
Total 9 3 12 15.0 250 100. 16 12 28 57.1 42.9 100. 9312150250100.16122857.142.9100.
1
244

TABLE 9220 EVALVATION QE ALL SIGHTINGS EOR ALL YEARS BY
UNITED STATES REGIONAL LOCATION
TOraL NORTH EAST CENTRAL EAST SoUrn EAST
Number Per Cent Number Per Cent
Evaluation Doubtful Total Certain Doubtful Total Doubtful Total Doubtful Total Certain Coubtful Doubthul
O-Balloon 241 163 404 86 58 44 9 / 10 20 12.6 52 39 91 89 67 15.6 0 3.1 0.0
1-Astronomical 403 310 7/3 4.4 11.1255 6 9 15 11.8 17.6 29.4 86 32 11848 5.520.3 5 / 15.6 3.1 18.7
2-Aircraft 329 256 585 4.8 222.0 5 6 11 98 11.8 21.6100 65 16517.2 112284 Z 4 1/ 2/.9 12534.4
3-Light Phenom. 29 23 52 1.0 0.8 181 / 2 20 2.0 4.0 4  1 12 0.7 1.4 2.1 1 2 31 3/6.2
4-Birds 14 8 20 05 03 0.8 0 0 0.0 0.00.05050.90009 0 0.00000
5-Clouds, Dust, etc. 9 12 21 03 0.4 0.7 0 0 000 0.0.00 0 9 9 0.01.51.5 00 0.0000.0
6-Insuffic info. 261 0261 93 0.0 9.3 3 0 35.9 0.05.9 44 0 44 7.60.0 7.6 2 0 2 6.3 00 6.3
7-Psychological 37 946 1.3 0.3 1.6 1 0 12.00.0 2.0 8 3 111.4 0.5 19 00 0 000.0.0.0
8-Unknown 582 058220.80.02.8 9 0 917.6 0.017.6112 01219.200 19.24 0412.5 0.012.5
9-0ther 88 21109 3.10.83.9 0 0 00.00.00.0 13 215 220.32.5 6 0 6188 0.0 18.8
Total 1993 802 279571.3 28.7 100.34 17 5166.733.3 100. 424158 58212.927.1100.26 6 3281.3 18.8100
NORTH MIOWEST CENTRAL MOWEST SOUTH MIOWEST
Number Per Cent
Evaluation Certain Total Total Doubtful Doubtful Total Dou btful
O-Balloon 3 10 13 38 12.7 16.5 39 35 74 81 7.3 15.4 33 36 69 52 5.7 10.9
• 1-Astronomical 13 6 19 16.5 7.6 241 94 36 132 20.0 75 27.5 81 105 186 12.9 16.7 286
2-Aircraft 5 4 9 6.3 5.1 1.4 45 41 86 9.4 85 17.9 76 59 135 9.4 21.5
3-Light Phenom. 0 2 00 2.5 25 11 8 19 2.3 1.7 40 5 / 6 0.8 0.21.0
4-Birds / 1 1.3 00 1.3 3 2 06 0.41.0 4 3 7 0.4 0.5 1.1
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 000000 00 02000 000.00 0000 0.00.0 0000 000 2.00.00.00.0000000.00.0
6-Insuffic. Info. 10 0102.7 00 12.7 62 0 62129 0.0 12.956 0 5689 0.0 89 01012.7 00 12.7 62 0 62129 0.0 12.9 56 0 56 89 0.0 8.9
7-Psychological / 0 1 1.3 0.0 1.3 12 0 12 2.5 0.0 2.5 3 3 6 050.5 1.0 1.3 0.0 1.3 12 0 12 2.5 0.0 2.5 3 3 6 050.5 1.0
8-Unknown 22 22 0 22 27.82.0 21.8 74 0 14 15.4.0.0 15.4 15/ 0 15/24.0 0.0 24.0 0 21.82.0 21.8 74 014 15.40.0 15.4151 015/24.00.024.0
9-0ther 2 0 2 2.50.0 2.5 15 2 17 3.10.4 3.5 8 5 13 1.3 0.8 2.1 0 2.50.0 2.5 15 2 17 3.1 0.4 3.5 8 5 13 1.3 0.8 2.1
Total 57 22 19 12.2 27.8100. 357 124 481 142 25.8 100. 417 212 62966.333.7 100 57 22 99 12.2 27.8 100. 357 124 481 14225.8 100. 417 212 629 66.3 33.7 100.
NORTH WEST NORTH WEST CENTRAL SoutIt SoUtH WEST WEST
Per Cent Number Num ber Per Cent
Evaluation Evaluation Certain Total Doubtfuil Total Doubtful Total Doubtful Total Doubitful Total Certain Doubtful Doubtful Total
0-Balloon 4 4 2 6 82 8.2 4.1 4.1 12.3 5 / / 58 1.2 1.2 20 20 38 10 48 48 98 2.6 2.6 12.4
1-Astronomical 1-Astronomical 10 / /1 // 20.4 2.0 22.4 29 11 11 40 337 12.846.5 12.8 44.5 44 82 /26 126 11.4 21.2 21.2 326 326
2-Aircraft 5 / 6 10.2 2.0 12.2 3 9 4 1 1 3.5 47 81 26 3.5 47 8/ 26 32 58 6.7 32 58 6.7 8.3 15.0
3-Light Phenom. 0 0 0.0 0.00.0 1.2 0.0 12 2 2 4 0.5 1.0
4-Birds / 2.0 0.02.0 0 1.2 120 2 2 0.0 0.5
. 5-Clouds, Dust, etc. 2 3 6.1 0.06.1 0 0.00.00.0 5 2 1 1.3 0.5 1.8
6-insuffic. info. 0 3 6.1 0.0 6.1 5 0 5 5.80.05.8 27.0 27 70 00 70
7-Psychological 0 2 410.0 41 6 04 .00.0 2.000 0 000000
&-Unknown 4 0 4 820.08.217 017 19.8 0.0 18.8104 0 10426.90.0 26.9
9-0ther 13 0 13 26.5 0.0 26.5 3 0 3 3.5 0.0 3.5 4 6 10 1.0 1.6 2.4
Total 45 44991.88.2100.69 17 86802 19.8100 250 136 38664.835.2.100.
NORTH FARWEST CENTRAL. EARWEST SOUTH FARWEST
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Doubtful Total Doubtful Total
0-Balloon 15 3 18 3.3 2.7 16.0 20 14 34 120 8.4 204 22 12 34 15.6 8.6 24.1
1-Astronomical 11 10 21 97 8.8 185 16 6 22 96 3.6 13.2 6 17 4.3 7.8 12.
2-Aircraft 13 1/ 24 1/.5 97 21.2 26 23 49 15.7 13.9 29.6 18 6 24 12.8 4.3 171
3-Light Phenom. 0 0 0.0 0.0 1 0.6 00 0.6 3 0 3 2.1 2.1
4-Birds 0 0.C 00 20 0 0000 0000 0.0
5-Clouds, Dust, etc. / 0.9 0.90 1120 060.4 0 0.0 00
6-Insuffic. info. 0 13 11.5 0.0 11.524 024 14.5·0.014.5 12 0 12 8.5 0.0
7-Psychological 0 0 00 000.0 1 23 06 1.2 1.83 1 4 2.1 0.7 2.8
&-Uniunown 0 23 20.40.0 204 28 0 2816.7 0.0 167 34 0 342 24.1 0.0 241
9-0ther 13 0 13 1.5 0.0 11.5 2 2 4 1.2 1.2 24 9 4 13 4.4 2.8 9.2
Total 8924 113 18.8 21.2100. 118 48 16671.1 28.9100 107 34 14175.9 24 1100.
245

-
TABLE 8221 EVALVATION OE UNITSIGNTINGS FOR ALL YEARS BY
UNITED STATES REGIONAL LOCATION -
TOrA4 NORTH  EAST CENTRAL EAST SoveH EAST
Number Per Cent Number Per Cent Per Cent
Evaluation Certain Doubtful Total Doubthul Certain Doubtful Total Total Deubthul No tful Total Certain Doubtul Tota
G-Balloon 205 137 342 9.2 61 15.3 7 8 184 2.6 21.1 44 30 74 9.3 6.3 15.6 0 / 40 0.0 60 -
1-Astronomical 328 228 556 147 10.2 249 3 7 10.5 79 18.4 73 29 102 154 6.1 2.5 5 6 20.0 40 24.0
2-Aircraft 272 210 482 12.2 94 2.6 5 8 19 13.2 21.1 76 57 133 16.0 12.0 28.0 lo 2 24.0 8.0 320
3-Light Phenom. 29 20 49 1.3 09 2.2 1 2 2.6 5.3 4 6 08 132/ 12 4.0 80
4-Birds 11 8 19 0.5 0.4 0.9 0 0 20 0.000 3030.6 0.0060 -
0 O 00 0000
5-Clouds, Dust, etc. 2 6 8 0.1 0.3 04 0 O 00 00000330.00.60.6000 2.0 0000
6-Insuffic. info. 226 0226 10.10.010.1 3 03 1.90.0 7.9 43 0 43 9.1 0.09.1 2 02 80 0.080
7-Psychological 35 8 431.4 0.42.01 01260.0 26 8 2 101.7 0.4 21 0 0 00.0 0000
8-Unkno wn 418 041818.7 0018.7 9 1
0 923.700 237 81 0 8117.10.0 17.1 404 1k.0 0.017.0
9-0ther 12 19 91 3.2 09 41 0 0 0 0.0 0.00.0 13 2 15 2.70.43.1 2 0 2 80 00 8.0
Total 1598636 223471.528.5100.28 10 3813.726.3100.345 12947412.8 21.2V00.21 4 2584016.0100
1
NORTH MIONEST CENTRAL MIOWEST SOUrH MIOWEST 1
Number Per Cent Number Per Cent
Evaluation Certain Doubtul Total Certain Doubtful Total Doubtful Total Certan Doubtul Certain Dau biful
G-Ballioon 3 7 10 4.3 10.0 14.3 35 31 66 62 1.2 15.4 26 32 58 56 6.8 124
1-Astronomical 12 5 17 17.1 11 24.3 79 27 106 18.5 6.3 24 8 69 73 142 14.7 15.6 303
2-Aircraft 5 4 9 71 51 12.9 43 40 83 10.0 9.3 19.3 55 47 102 11.8 10.0 21.8
3-Light Phenom. 0 2 2 0.02.9 2.9117 18 2.6 1.6 4.2 5 / 02 13
4-Birds 0 1 1.4 0.0 1.4 3 2 5 0.1 0 11.4 0.0 1.43 2 5 0.1 0.5 0.5 1.2 4 3 709 0.6 1.5
5-Clouds, Dust, etc. 0 0 0000000000000 00000000 000 0.0 0.000000 00 0.0 0.00.0 |
6-Insuffic. into. 6-Insuffic. Into. 8 08 1.40.0 11.4 58 0 58 8 0811.40.0 11.4 58 0 58 13.6 13.6 00 13.6 44044 94 0094 0094
7-Psychological / 01 14 00 1.412 0 122.8 01 14 00 1.4 12 0 12 2.8 00 0.0 28 336 3 36 106061.2 040.6 1.2
8-Unknown 8-Unknown 20 02028.40.0 28.665 0 451520.0 15.2 90 0 90 19.20.019.2 20 0 20 28.4 00 28.645 065 152 0.0 15.2 90090 19.2 0.0192
9-0ther 2 02 2.9 0.0 29 14 1 15 330.2 3.5 8 5 13 1.7 1.1 28 0 2 2.9 0.0 29 14 1 1533 0.2 3.5 8 5 13 1.7 1.1 2.8 |
Total Total 52 18 7014325.710032010842814825.2100.304164 468450350 100. 52 18 7014325.7100 32010842894825.2100.304164 468650350 100.
NORTH NORTH WEST CENTRAL CENTRAL. SOVTH WEST
Number Per Cent Per Cent Number Per Cent Num ber
Evaluation Certain Doubtful Total Total Certain Doubthul Doubtful Total Doubthul Total Certann Certan Doubiful Total Certain Doau bitful Dau biful
0-Balloon 4 4 2 2 6 12.6 6.3 188 3 / 4 46 15 62 31 31 7 38 118 2.7 145
1-Astronomical 1-Astronomical 7 7 / 8 21.9 3.1 31 250 14 11 25 25 21514.9 215 16.9 385 33 33 51 5/841 84 126 126 195 195 32/ 32
2-Aircraft 5 / 6 15.6 3.1 187 3 4.6 4.6 9.2 23 23 46 88 88176
3-Light Phenom. 0 00 0.0 e 15 00 15 2 2 40.8 08 1.6
4-Birds 0 0 000.0 ed 11 0.01.515 0 2 2 0.00.8 0.8 4
5-Clouds, Dust, etc. 0 0 00d0.000 000 0.00.0.0.0 1 2 30.4 0.81.2
6-Insuffic. info. 3 0 3 9.40.0 9.4 5 0 5 7.700 17 17 017 4.50.0 6.5
7-Psychological 2 0 26.3 0.0 6.3 4 0 44.20.0 6.2 0 0 0 0.0 0.0 0.0
&-Unknown 4 04 12.50.012516 016 24.600241 59 05922.50.0225
9-0ther 3 0 39.400 943 03 4.6 004.4 4 5 91.51.9 34
Total 284 3281.5 12.5 100.49166575424.6100. 1709226264935.1100
NORIH EARWEST CENTRAL.FARWEST SOUTH FARWEST
Number Per Cent Number Number Per Cent
Evaluation Certain Doubtful Total Certain Tatal Doubtful Total Certain Doubitful Total Dou btful Total
G-Bailoon 15 3 18 13.9 2.8 7 17 // 28 116 75 19.1 19 12 31 lk. 1 10.2 26.3
1-Astronomical 1/ 10 2/ 10.2 9.3 19.5 15 6 21 10.3 41 14.4 17 51 9.3 144
2-Aircraft 13 4 22 120 8.3 20.3 26 13 3916 89 26.1 14 20 11.9 51 170
3-Light Phenom. 0 0.0 0.000 0007 3 0 3 2.5 0.0 25
4-Birds 0 02 000000 0 d 00.00.00d 0 0 2 0.0 0.0 00
5-Clouds, Dust, etc. / 0109 0.00.9 0 1 10.0 0.1 0.70 2 0.0 2000
6-Insuffic info. 10 010 9.3 0.0 9.324 0 244.4 0.0 16.4 9 09 7.6 0076
7-Psychological 0 000.00.0 0.0 1 2 3 0.7 14 2.1 3 1 42.5 0.8 33
8-Unkuno wn 23 0 2321.30.0 21.3 25 0 2517.1 0.0 17.1 22 0 22 18.4 0.0 186
9-0ther 13 013 1200.0 12.0 2 2 4 14 14 2.8 8 412 6.8 3.4102
Total 86 2210879.6 20.4100.11135146760 24000.843411871.228.8100.
246

-- TABLE 4222 EVALVATION OF OBJECT SIGHIINGS EOR ALL YEARS BY
UNITED STATES REGLONAL LOCATION
TOTAL NORTH EaST CENTRAL East SOUTH EAST
Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Doubtful Total Total Certain Doubtful Tot
0-Balloon 184 121 305 26 6.3 15.9 / 8 8.9 2.7 21.6 38 63 27 69 16.6 / 0 65 i.c 4.5
1-Astronomical 237182419 /24 9.5 21.9 4 3 1 10.8 81 18.9 46 24 Z0 147 6.1 17.8 4 / 5 18.2 4.5 22.7
2-Aircraft 245 185433 12.8 9.8 22.6 3 8 8113.5 2/6 6250 112 15.8 12.7 285 5 / 6 227 46 27.2
3-Light Phenom. 27 17 44 1.4 0.9 2.3 1 2 2.7 2.7 5.4 3 6 90.8 15 23 / / 4.5 45 9
4-Birds 10 8 18 0.5 0.4 0.9 0 0.00.00.0 30 3080.008 0 O 0.0
5-Clouds, Dust, etc. 2 4  8 01 0.3 04 0 00.00.00.0 0 3 300080.8 0 0.0 0.000
6-Insuffic. mto. 205 020510.70.010.7 3 0 38.10.08.1 38 038 970.0 9.7 2 02 9.10 9.1
7-Psychological 34 8 42 1.8 0.4 2.2 1 0 1 2.7 0.0 2.7 7 2 9 1.8 0.5 2.3 0000.00.000
B-Unknown 359 0359187 0.0 18.7 8 0 8 21.6 0.021.669 069 17.40.0176 4 0 4 18.2 0.0/82
9-0ther 6716 8335 0.8 45 0 0 0 0.00.00.013 215330.53.8 2 0 291 0.1 2.1
Total 1370 546 1916 71.5 28.5 100. 27 10 3773.0 27.0100. 279 1143937.0 29.0100. 19 3 22 86.4 13.6 1c0
NORTH MIDWEST CENTRAL MIOWEST SOUTH MIOWEST
Number Per Cent Per Cent
Evaluation Certain Total Doubtful Doubtful Total Doubthul Total
0-Balloon 3 7 10 d8 11.3 16.1 30 28 58 60 7.5 15.5 25 53 6.4 7.2 13.6
• 1-Astronomical 8 3 11 12.9 4.8 1Z.2 53 24 17 142 6420.6 51 59 110 13.0 151 281
2-Aircraft 5 9 8.7 6.5 144 42 35 1711.2 9.420.0 50 4191 12.5 105 233
3-Light Phenom. 2 2 2 0.0 3.2 3.2 11 5 2.9 1.3424 0 4.22.01.0
4-Birds / 011.6 0.0 1.6 3 2 50.8 0.51.3336 28 08 1.6
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 000.00.0 0.00000.0 0.00002022 2.0 00 000.00.00.0 0 0 00.00.00.0 000262.0 0.0
6-Insuffic. info. 8 0 8 12.9 0.0 12.9 57 0 57 15.22.015.2 35 0 35 9.1 2.9.0 0 8 12.9 0.0 12.9 57 0 5715.22.015.2 35 0 35 9.1 2.:9.5
7-Psychological / 1 0 1 1.6 0.0 1.6 12 0 12 3.20.0 3.2 3 3 6 2.80.8 1.6 0 11.6 0.01.6 12 012 32.00 32 3 3 62.8 0.8 1.6
8-Unknown 18 0 18 29.0 0.0 29.0 52 0 57 15.20.0 15.2 14 0 7418.9 0.0 182 018 29.00.029.057 0 57 15.20.015.2 14 0 7418.9 0.0 187
9-0ther 2 0 23.20.0 3.214 1 15 37 0.3 40 84 12 20 1.< 30 0 23.20.0 3.214 1 15 37 0.3 40 84 12 20 1.< 3
Total 46 16 62 74.225.8100. 279 95374 146 254100. 253138 391647 35.3100. 46 16 62 74.225.8 100. 279 95374 146 25.4100. 253 138 391 647 35.3100.
NORTH NORTH CENTRAL CENTRAL WEST SOUTH 50414 WEST
Per Cent Number Number
Evaluation Certain Doubtful Total Doubtful Doubtful Doubtul Total Dou btful Total Total
0-Balloon 3 3 2 2 5 11.5 77 7.7 19.2 / / 4 51 1.7 17 6.8 28 33 33 12.6 12.6 ?2 ?2 168
1-Astronomical 1-Astronomical 3 / 4 11.5 3.8 3.8 15.3 11 1 9 20 20 18.6 153 33.9 31 34 34 65 139 15.2 21.1 22.1
2-Aircraft 5 5 / 6 19.2+3.8 19.243.8 23.0 3 6 5/ 5.1 10.2 21 2/ 424.4 42 4.4 9488 94 8.8
3-Light Phenom. 0 / O 0.0 17 2 2 4 0.9 291.8
4-Birds 0 0 00.0000.0 1 10.01.7170 2.0 0.919
5-Clouds, Dust, etc. 0 00.00.200 000 000.0 1 241 2.9 1.3
6-insuffic. info. 3 0 3 11.50.011.550 585 0.0 85 14 014 6.3 00 6.3
7-Psychological 2 0 2 22 0.0 2.74 0 46.80.06.80000.0 2.2 0.0
&-Unknown Q 3 11.5 0.011.5 15 0 1525.40.0 25.4 53 053 2351.223.5
9-0ther 3 0 3 1.5 0.0 11.5 3 0 3 5.1 0.0 51 4  3  7 1.8 13 3.1
Total 22 4 2684.6 15.4 100.45 1459 76.3 23.7 100 154 69 22369.130.9 100
NORTH FARWEST CENTRAL SOUTH EARWEST
Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Certain Total Doubthul
0-Balloon 13 3 16 13.6 3.2 16.8 16 9 25 12.2 6.9 19 1 10 27 6.5 2.7 26.2
1-Astronomical 10 8 18 10.5 189 11 6 17 84 46 13.0 .5 12 15 s9 2726
2-Aircraft 21 12.6 2.5 22.1 24 12 36 183 9.2 27.5 3 9 126 58 8.4
3-Light Phenom. 0 2 0.000 0 0.8 0.0 3 2.9
4-Birds 0 0.00.0 00 00 0.0 000.02 Q 0.0 0.2
5-Clouds, Dust, etc. / 11.10.01.10 41 0.0 0808 0 0 1 00 202
6-insuffic. Info. 10 0 10 10.5 0.0 10.5 22 2 2214.8 20 1.8 8 05 78 2.4 15
7-Psychological 0 0 0.0 0.0 00 1 2 3 0.8 1.5 2.3 317 29..0 39
&-Unknown 21 021 22.0.0 22.1 22 02216.80.0 1.85 0 5 14620 14.6
9-0ther 8 0 8 8.4 0.0 8.4 2 2 4 1.5 1.5 3.0 8  + 2 7.8 3.91.7
Total 1520 95189 21.1100. 9.9 3213/15.62.4 100. 72 3/103 69.930./100.
247
-

-
1
TABLE A223 EVALUATION OF ALL SIGHTINGS IN THE STRATEGIC AREAS
OF THE CENTRAL EAST RESION -
New YORK HARRISBURG NASHINGTON BALANCE OF CENTPAL EMT
Number Per Cent Number Per Cent
Evaluation Doubtful Total Doubthul Certain Doubtful Total Doubtful Tota
0-Balloon 16 25 90 5.1 9 6 15 107 Z.1 178 19 31 90 57 8 12 20 0.9 182 I
1-Astronomical 20 6 26 11.2 34 14.6 10 10 20 11.9 23.8 40 11 51 190 5.2 24.2 5 21 45 4.5 9.0
2-Aircraft 53 12 65 29.8 6.7 3.514 10 24 16.7 11.9 286 232750 10 12.923910 16 26 9.1 45 236
3-Light Phenom. 2 3 0.6 17 0 / 120.0 1.2 0 2 2 001.0 10 1 5 6 0.9 4.5 5.4
4-Birds 0 0 00 000.0 40 4480.04.81 05 0.005 0 0220 0.000 1
5-Clouds, Dust, etc. 0 00 0.0.0.000 00 0 0000000 818 0.0 3838 0 1 120 2909
6-Insuffic. Info. 21 021 1.8 0.0118 2 02 240.02.411 0 1520052 120 0 9 2091
7-Psychological 7 0.7 3900 89 1 011.2,0.0120 0 00.0 00 00 03 3 00 2.727
8-Unknown 26 0 26 14.600 14615 0 157.90.017.953 0 53 25.20.0 252180864 0016.4
9-0ther 5 0 5 2.8 0.0 2.8 2 0 22.40.0 2.4 3 0 3 1.40.0 1.4 3 2 5 27 18 4.5
Total 15028 17884.815.7100 58 26 8469.03,0100 150 60 210 714 28.6100.664410 600 400100.
1
TABLE A224 EVALVATION OF ALL SIGHTINGS IN THE STRATEGIC AREAS
OF THE CENTRAL MIRWEST RE6ION
CHICAGO DAYTON BALANCE OF CENTRAL MIOWEST |
Number Number Per Cent Num ber Per Cent
Evaluation Doubtful Doubtful Total Certain Total Certain Doubthul Dou btful
0-Balloon 2 5 7 2.3 5.7 80 21 9 30 11.2 4.8 V6.0 16 21 37 7.8 10.2 18.0
1-Astronomical 20 8 28 22.7 9.1 318 37 18 55 19.7 9.6 29.3 39 10 49 19.0 49 23.9
2-Aircraft 11 8 19 12.5 9.1 21.6 21 44 12.2 23.4 13 10 23 6.3 4.9 11.2
3-Light Phenom. 0 / 0.0 1144 6 4 10 32 2.15.3 5 3 8 2.4 1.5 3.9
4-Birds / 011.1 0.0 11 1 0 10.50.0.0.5 1 2 3 0.5 1.0 1.5 0 001110 0.50.00.51 2 3 0.5 1.0 1.5
5-Clouds, Dust, etc. 0 0 00.000.0.00000.000000000.00.00.0 000.00.00.00 0000 000d 0 00 0.0 0.00.0 —
6-Insuffic. Info. 11 0 11 12.5 0.012.5 20 0 20 10.6 0.0 10.6 31 0 3/ 15.10.015.1 11 0 11 12.5,0.0 12.5 20 0 20 10.6 0.0 10.6 31 031 15.1 0.015.1
7-Psychological 5 0 5 5.7 0.05.7 2 0 2 1.1 0.01.1 5 0 5 2.400 2.4 5 0 5 5.7 0.05.7 2 0 21.1 0.01.1 5 05 24002.4
8-Unknown 12 0 12136 0.013.6 18 0 18 9.6 0.0 9.6 44 0 44 21.5 0.0 21.5 12 12136 0.013.6 18 0 18 9.6 0.0 9.6 44 0 44 21.5 00 21.5
9-0ther 4 0 4 4.5 0.04.5 6 2 8 3.2 1.1 43 5 0 5 2.400 24 4 0 4 4.5 00 4.5 6 2 8 3.2 1.1 43 5 0 5 2.4 00 2.4 —
Total 66 22 8875.025.0100.13256188 70.2 29.8100159 46 20577.622.4 10. 66 22 88 75.025.0100.132 56188 70.2 29.8100 159 46 20577.622.4100.
TABLE A225 EVALVATION OF AlL SIGHTINGS IN THE STRATEGIC AREAS —
OF OF THE CENTRAL FARWEST REGION REGION
SAN FRANCISCO BALANCE Of CENTRAL FARWEST
Number Number Per Cent
Evaluation Certain Total Doubthul Doubtful Total Doubtful Dou bitful
0-Balloon 18 26 160 160 2.1 23.1 2 6 8 37 37 11.1 14.8 14.8
1-Astronomical l-Astronomical 11 3 14 9.8 2.7 12.5 12.5 5 8 93 5.6 14.9 14.9
2-Aircraft 17 1 28 15.2 9.8 25.0 9 12 21 22.2 389
3-Light Phenom. 0 00 0.0 1 9 0.01.9
4-Birds 0 0 0.0 0000d00
5-Clouds, Dust, etc. 0 0.0 00 0 1 0.01.919
6-Insuffic. Info. 16 0 00 14.3 8 814.8 0.014.8
7-Psychological / 2 3 0.9 18 2.70 0 00.0000.0
&Unknown 22 022 12.6 0.0 19.660611.10.0 11.1
9-0ther / 2 3 0.9 1.8 2.7 1 0  1.9 0.0 1.9
Total 86 26 11276.823.2100.32 225459.3 40.7100.
248

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TABLE A226 EVALVATION OE ALLSIGHTINGS IN THE STRATEGIC ARERS
OF THE SOUTH MIOWEST REGION
ATLANTA WASO SAN ANTONIO BALANCE Of SOUTH MowesT
Number Per Cent
Evaluation Certain Doubtful Total Certain Doubtful Total
0-Balloon 6 12 18 69 13.8 20.7 3 5 8 2.1 3.5 5.6 1 2 9 11.5 3.3 14.8 17 17 34 5.0 50 100
1-Astronomical 12 20 9.2 13.8 23.0 33 64 97 229 1444 67.3 6 8 14 28 131 22.9 34 21 55 101 6.2 16.3
2-Aircraft 10 11 21 11.5 12.6 24.1 4 2849 7.7 5 6 1/ 82 98 18057 35 92 16.9 104 27.3
3-Light Phenom. 2 1 3 2.3 1.1 3.41 010720 0.7 0 16 00161 0 1 03 00
4-Birds 0 0.0 000.0 4 1 528 0.73.50 000.00.0 022 0.0 0.6 06
5-Clouds, Dust, etc. 0 0 00 0.0 0.0000 000.0 000 0 00.00.000000000000
6-Insuffic. Into. 8 0 9.2 0.0 9.2 12 0 12 83 0.08.3 2 0 2 3.3 2.0 33 34 0 34 10.1 0.0 101
7-Psychological 0 2 00 2.3 2.3 0 0 0 0.00.000 0 00 00 0.0 0.0 3 1 4 0.9 0.3 12
8-Unknown 13 0 14.0 0.0 14.9 9 0 9 62 0.0 .2 21 0 21 344 0.0 34.4108 0 108 52.0 0.0 32.0
9-0ther / / 2 1.1 1.12.2 1 0 270.007 1 2 3 1.65.3 49 5 2 7 1.5 0.6 2.1
Total 48 39 87 55.244.8100.67 77 144 46553.5100 43 186170.529.5/00.259 78 33716 9 23.1100
TABLE A227 EVALVATION OE ALL SIGHTINGS IN THE STRATEGIC AREAS
OF THE SOUTH WEST REGION
ALBUQUERQUE BALANCE SQUTH WEST
Number Per Cent Number
Evaluation Certain Doubtful Total Doubtful Total Dou btful
0-Balloon 12 5 17 57 2.4 8.1 26 5 31 148 2.8 17.6
0 1-Astronomical 21 60 81 10.0 28.6 38.6 23 22 45 13.1 12.5 26.6
2-Aircraft 19 30 52 9.0 14.2 15 13 28 8.5 7.4 15.9
3-Light Phenom. 0 ad 0.0o0 2 4 1.1 1.1 2.2
4-Birds 0 // 000.50.5 0 / 1 0.0 0.6
5-Clouds, Dust, etc. 5 05 2.4002.40 2 0.0 1.1
6-Insuffic. Info. 16 016 760.01.611 0 11 6.2 0.0 6.2
7-Psychological 0 00 00 00.00 000 0.0 0.00.0
8-Unknown 53 0 53 252 00 25251 0 51 29.0 0.0290
9-0ther 1 6 7 0.5 2.9 3.4 3 0 3 17 001.7
Total 119 9121056.743.3100131 4517674.4256100.
TABLE A228 EVALUATION OF ALL SIGHTINGS IN THE STRATEGKC  AREAS
OF THE SOUTH FARWEST REGION
Los ANGELES BALANCE OF SOUTH FARWEST
Per Cent Number Per Cent
Evaluation Total Certain Doubtful Doubtful Doubtful Total Certain Doubtul Total
0-Balloon 21 10 31 18.3 87 27.0 / 2 3 3.8 27 11.5
1-Astronomical 5 8 13 43 10 11.3 / 3 4 3.8 11.5 15.3
2-Aircraft 14 5 19 122112 46 28 192
7-Psychological 2 / 3 1.7 0.9 2.6 1 0 138 0.038
8-Unknown 31 031 27.000 27.0 3 0 311.50.011.5
9-0ther 8 0 8 7.00.0 70 1 453.815.4 19.2
Total 91 24 11579.1 20.9100. 16 10 26 61.538.5100.
---
249

-
I
TABLE A 229 EVALVATION OE VNIL SIGHTING'S IN THE STRATEGN AR'EA'S
OF THE CENIRAL EASTREOON
New YorK HARRISBURG -
WASHINGION BALANCE O5 CentRa Eas
Number Per Cent Per Cent Number
Evaluation Certain Doubtful Total Certain Doubtful Total Certain Doubtul Totai Certan Doubful Total Certan Doubtful Total Certain Doubthul Doubitul Total Doubtful Totw
G-Ballcon 7 18 86 5.4139 6 3ks 1792 16 9 25 9.4 53 17 8 8 82 8.2 16.4
1-Astronomical 16 4 22124 47 12/ 10 88 /2.8 0.3 23.1 31 10 41 180 59 24 -
16 5 21 6.5 2.2
2-Aircraft 31 940 240 702014 10 2411.9 128 30721 25 4 lo /2.4 14727./10 13 23 10.3 34 237
3-Light Phenom. 2 131628241 01130.01.31022 0012213 4 10 3141
4-Birds 0 0 00.d0000 2 0 226 0.0 26 1 0 104 0.006 020 20 2.20.0
5-Clouds, Dust, etc. 0 0 00.00000 0 00000.0 20 0 220.0 12120 1 100 I
6 Insuffic. info. 1010
20 020 15.5,0.0155 2 02 2.620 2.6 11 0 11 6.500 45 10 0 100.3 0.0103
7-Psychological 7 0 540.0.54 1 011.300,130 0 0000000 0 2 2 002.12
8-Unknown 14 0 1410.920 10913 0 13 16700 10.7 39 0 39 22900 22915 0 15 15.50.0/5.5
9-0ther I
5 0 5 390039 2 02 2600 26 2 0 3 18 00183 2 5 312.15.2
Total 10 23129 8221781005424 78 69230.8100.22 48 170718 282100.63 34 974:9351100
1
TABLE A230 EVALUATION OE UNIT SIGHTINGS IN THE STRATEGIC akEn'
OF. THE CENTRAL DOWESTREGION
CHICAGO DAYTON BALANCE Or CENTRAL MONES
Number Per Cent Number Per Cent Number Per Cent Number Per Cent |
Evaluation Certain Doubtful Total Certain Doubthul Total Doubtful Total Certain Doubtful Total Doubtful Total Doubthul Total Certain Dou btful
0-Balloon 2 st 2.5 4.2 8. 20 9 29 12.0 5.4 14 3 17 30 7.2 9.4 16.6
1-Astronomical 16 22 19.8 7.4 272 29 11 40 174 66 2403410 44 189 5.6 245
2-Aircraft 136 2.9 235 1922 41 11.4 3.2 24.6 13 10 23 7.2 56 12.8
3-Light Phenom. 0 1  001.21.26 4 10 34 2.4 6.0 5 2 7 2.8 11 39
4-Birds 1211.2001.2 1012.40.0062 3 06 11 /7
5-Clouds, Dust, etc. 0 0000000d000000.0.0.00 0 0 00 000000d0000.00.0.0.000 0 000000 0.000.00
6-Insuffic. info. 110 11 1360.0·18.620 0 2012.00.02.0 270 27 11 0 111360.013.620 0 20 120 0.012.0 270 275.00.05.0 100050 |
7-Psychological |
5 2 5 6.20.0 4.2 2 0 21.200 1.2 5 05 28 25 6.20.0 4.2 2 0 21.2 00 1.2 5 05 2.8 00 2.8
&-Unknown 8-Unknown 11 011 136 0.013617 0 1710.20.010.237 0 37 11 011 136 0.013617 0 1710.20.00.237 0 3720.60.020.6 20.4 0.0 20.6
9-0ther 40 4 490.0494 173.40.642 4 042.20.02.2 4 0 4 49 0.0 494 17 3.4 0.4 42 4 0 4 2.2 0.0 2.2
Total 6120 8175324700.1204716771928.1100.13941180 77.2228100 6120 81153 247001204716771928.1100.1394118077.2228100 2
TABLE TABLE A231 EVALUATION OE VNIT SIGHTINGS IN THE STRATEGIC ALEA'S EVALUATION OE VINIT SIGHTINGS IN THE STRATEGIC HLEH'S
OE OF THE CENTRAL FAEWEST THE CENTRAL FAEWEST REGION REGION
SAN FeANCISCO FRANCISCO BALANCE OF CENTRAL FARWEST
Number Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Total Certain Doubtful Doubtful Doubtful Total Doubtful Total Certain Doubthul Total Certain Doubtful Total Doubthul Certan Dau biful Deaus biful Tot Tota
0-Balloon 15 8 8 23 146 7.8 22.4 22.4 2 2 3 5 5 471.0 11.7 471.0 11.7
1-Astronomical 1-Astronomical 10 3 13 13 9.7 2.9 12.6 5 3 8 116 1.0 186 184
2-Aircraft 17 8 25 lk.5 16.5 18 1.8243 243 9 9 511409116 825 5 14 209 11.6 32.5
3-Light Phenom. 0 0.de.000 0 / 2.3 00 2.3
4-Birds 0 00 0000.000 00 0.00.0
5-Clouds, Dust, etc. 0 e oed odoo o I 1 0.023 23
6-Insuffic. info. 16 1
016 1552.015.580818.60.018.6
7-Psychological / 2 3 10 1.9 29 0 0 0000.0 00
8-Unknowi 20 0 20 19.40.019.450 5 11.4 0.0 11.6
9-0ther 1 2 3 1.0 1.92.9 1 0 1 2.3 0.0 2.3
Total 80 2310317.722.3100.31 12 43 72.127.9100.
250

--
TABLE A232 EVALVATION OF UNIT SIGHTINGS IN THE STRATEGIC AREMS
OF THE SOUTK MIDWEST REGION
ATLANTA WACO SAN ANTONO BALANCE or SOUTH MowES
Per Cent Number Per Cent
Evaluation Total Certain Doubtful Doubtful Total Doubtful Certain Doubtul Total
0-Balloon 6 11 17 1.8 14.3 22. 3 5 8 27 46 7.2 2 4 48 9.6 15 14 29 6.3 5.9 12.2
1-Astronomical 7 10 17 9.1 13.0 22. 25 41 66 22.536.9594 6 5 11 143 1.9 26.2 31 7 48 13.0 71 20.1
2-Aircraft 9 18 11.7 11.723.4 4 711 3.6 6.3 9.9 10 9.5 143 23.8 38 26 63 16.010.5 26.5
3-Light Phenom. 2 / 3 2.6 1.3 39 21 090.009 1 0 2.4 002.4 101 040.004
4-Birds 0 0 0 0.do00d 4 1 5 360.94.50 0 0 0.0 2000 0 2 2 0.00.808
5-Clouds, Dust, etc. 0 2000000.d000 0d000.00000.0 2.000 00 0 0.00000
6-Insuffic. info. 8 0 8 10.40.010.410 010 9.0009.0 101240.02.425 0 25 10.5 0.010.5
7-Psychological 0 2 20.02.6.2.60 0 00.00.00.0 0 000.00.00.03 4 1.3 0.4 1.7
&-Unknown 10 010 13.00.0 130 9 09 8.1 0.0 81 12 0 2 2860.0 28659 0 59 24.800 248
9-0ther 1 1 2 1.31.3 2.6 1 0 1 0.9 0.0 0.91 2 3 2.4 4.8 7.2 5 27 2.10.8 29
Total 43 34 77 55.8442100 5754 111 51.448.6100. 27 15 4264.335.7100. 177 61 23874425.6100.
TABLE A233 EVALUATION OF UNIT SIGHTINGS IN THE STRAIEGIC AREAS
OF THE SOUTH WEST REGION
ALBUQ.VERQUE BALANCE OE S0UTH WEST
Per Cent Number Per Cent
Evaluation Certain Doubtful Total Certain Total Doubtful Doubthul Dou btful
0-Balloon 5 3 8 4.2 2.5 6.7 26 4 30 8.1 2.8 20.9
1-Astronomical le 37 53 13.4 31.1 44.5 17 14 31 119 9.8 21.7
2-Aircraft 9 10 19 16 84 16.0 14 13 27 9.8 9.1189
3-Light Phenom. 0 0 0000 0.02 1.4 1.428
4-Birds 4-Biros 0 11 O00810Y 0.00.8·0.8 01 1 110.00.70 0.0 0.7 0.7
5-Clouds, Dust, etc. 1 0 1 08 0.00.8 0 2 2 0.01.4 1.4 101080.00.8 022 001.4.4
6-Insuffic. Info. 6 0 6 50,0.0 50 11 0 11 7.7 0.0 7.7 06500.0 5011 0 11 7.7 0.07.7
7-Psychological 0 0 0 0.00.00.0 0 00 0.00.00.0 0 00 0.00.00.0 0 00 0.00.00.0
8-Unknown 25 0 2521.00.02.0 34 0 34 2380.023.8 25 0 25 21.0 0.021.0 34 0 34238 0.0 23.8
9-0ther 1 5 6 0.8 42 5.0 3  0 3 2.1 0.0 2.1
Total 63 56 11952.947.1100. 107 3614374.825.2100 63 56 119 52.947.1100. 107 3614374.8 25.2100.
TABLE A234 9234 EVALVATIONOF UNIT EVALVATION OE UNIT SIGHTINGS IN THE STRATEGIC SIGHTINGS IN THE STRATEGIC AREAS
OF. OF  THE SOUTH FARWEST THE SOUTHH FARWEST REGION
LOS ANGELES LOS ANGELES BALANCE OF, SOUM FARWEST BALANCE OF, SOUTH FARWEST
Number Number Per Cent Per Cent
Evaluation Evaluation Doubtful Certain Doubtful Total Doubtful Total Certain Doubthul Total Dou bithul Total
0-Balloon 18 10 28 28 18.2 18.2 10.1 28.3 / 2 3 5.3 10.5 V5.8 15.8
1-Astronomical 5 8 8 13 5.1 8.1 13.2 / 3 4 5.3 15.8 211 211
2-Aircraft 2-Airciaft 12 12 5 11 12.1 5.1 17.2 142 2 A 1 3 10.5 0 5.3 15.8
3-Light Phenom. 2 0 2.00.0 2.0 / 1 0.0 5.3
4-Birds 0 02000 00 O 0 0.0 0.0 a0
5-Clouds, Dust, etc. 0 000.000 0 0 0.0 0.0
6-Insuffic. Info. 8 0 8 81 0.08.1 0 / 5.3 0.0
7-Psychological 2 1 32.010301 / 53 0.0 5.3
- B-Unknown 21 02121.20.0 21.21 01 5.3 00 5.3
9-0ther 7 0 7710.01.1 14553 21./ 26.4
Total 15 24 99158 24.2100.9 10 19 41452.6100.
251

-
-
TABLE A235 EVALVATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREM'S
OF THE CENTRAL EAST REGION -
New York HARRIS BURG WASHINGTON BALANCE Of LENIRN ERs1
Number Per Cent Number Per Cent
Evaluation Certain Doubtful Total Doubtful Total Total Doubthul Certain Doubtful Total Doubtful Tota
0-Balloon 15 7.6 6.7 14.3 7 6 13 11.5 9.8 21.3 15 23 10.3 5.5 158 8 14 99 7.4 17.3 I
1-Astronomical 1 6 1710.5 5716.2 10 le 16 le.3 9.8 26.2 15 7 22 10.3 4.815/10 5 12.5 6.2 18.5
2-Aircraft 241 32 22.9 7.6 30.5 9 14.8 14.8 296 20 24 44 137 6.430192 18 111 22.2
3-Light Phenom. 1 210 1.0 2.0 0 1 1.6 0.0 16 0 2 20.0 1414 7 34 1.2 3.7 49
4-Birds 0 000000d 2 0 2 3300 33 1 0107 2.00700 0 2000100 -
5-Clouds, Dust, etc. 0000 00000 2.0 0.00.00 2 2 00 1.440/1 00 1.212
6-Insuffic. Into. 17 017 16.20.014.21 011.60.0 1.6 10 0 10 6.8 006.8 100 0 12 3 0.0133
7-Psychological 6 06 570.0.5.7 1 01 .6 0.0 1.4 0 0 0 00 0.0 00 0 22 002.5 2.5
8-Unknown 11 0 11 10.50.0.10.5 7 0 7 1.5 2.0 11.5 39 0 39 24.70.0 267 12 0 12 14.8004.8 |
9-0ther 5 0 5 4.8 0.0 48 2 0 2 3.300 3.3 3 0 3 2.1 0.0 2.1 3 2 5 3.7 2.5 4.2
Total 83 22105 19.0210400 40 21 6165.634.4100 10343146 70.529.5100 5328 81 654346100
1
TABLE A236 EVALVATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS
OF THE CENTRAL MIDWEST REGION
CHICAGO DAYTON BALANCE OF CENTRAL NIOWES
Number Number Per Cent Per Cent -
Evaluation Certain Total Certain Doubtful Doubtful Dou btful
0-Balloon 2 5 30 7.6 10.6 8 23 10.4 5.6 16.0 13 15 28 7.9 9.1 17.0
1-Astronomical 5 6 11 9.1 16.7 21 11 32 14.6 7.6 22.2 27 7 34 165 43 20.8 .
2-Aircraft 10 8 18 152 12.1 27.3 19 18 37 132 12.5 251 13 9 22 79 5.5 13.4
3-Light Phenom. 0 1 / 0.0 1.5 1.5 6 2 8 4.2 1.4 56 5 2 7 3.0 12 42
4-Birds 4-Birds 10 111.5001.5 1011070.0 07 1 213106 12 1.8 0 / 1.5 001.510 1 07 0.0 07 2 06 1.2 1.8
5-Clouds, Dust, etc. 5-Clouds, Dust, etc. 0 00 0 0.000.0000 00.00.0·0.000000·00·00 0.0000000 0000.0.0.00 0.0
6-Insuffic. info. 10 10 0.10 0 152 0.0 15.2 20 0 20 13.9 0.0 13.9 27 0 27 152 0.0 15.2 20 0 20 13.9 0.0 13.9 27 0 27 16.5 0.0 16.5 16.5·0.0 16.5
7-Psychological 5 0 7.4 0.0 7.6 2 0 214 0.0 1.4 5 0 5 3.00.0 30 7.6,0.0 7.6 2 0 2 1.4 0.0 1.4 5 05 3.0 0.0 30
&-Unknown 8-Unknown 0 9 13.6 0.013.6 14 0 14 2.7 0.0 9.7 34 034 20.7 0.0 20.7 0 9 13.6 0.013.6 14 0 14 2.7 0.0 9.7 34 03420.7 0.0 20.7
9-0ther 4 0 4 6.10.0 6.1 6 1 74.2 0.7 4.9 4 0 4 2.4 0.0 2.4
Total 46 20 6669730.3100.10242 14410.829.2100 129 35 164 78721.3100. 46 20 66 697 30.3100. 102 42144 10.8 29.2 100129 35 164 78721.3100.
TABLE A237 EVALVATION OE OBJECT SIGHTINGS IN THE STRATEGIC AREAS
OF THE CENTRAL FARWEST OF THE CENTRAL FARWEST REGION
SAN FRANCISCO BALANCE OF CENTRAL FARWES BALANCE OF CENTRAL FARWES
Per Cent Number Per Cent Number
Evaluation Certain Doubtful Doubtful Total Doubtful Total Certain Certan Certaen Total
0-Balloon 14 1 21 15.1 15.1 7.5 22.6 22 6 2 4 5.3 10.6
1-Astronomical 8 11 8.6 86 3.2 3.2 11.8 3 3 6 7.9 7.9 15.8 15.8
2-Aircraft 15 7 22 16.1 1.5 23.6 9 5 14 23.7 13.2 36.9
3-Light Phenom. 0 0.0 0 1 0.0 2.6
4-Birds 0 00 0.000 0 0.0 0.0
5-Clouds, Dust, etc. 0 000.d0.00.0 0 / 1 0.0 2.6
6-Insuffic. Info. 15 0 15 16.1 0.0 16.1 7 0 7/84 0.018.4
7-Psychological / 2 3 1.12.2 3.3 0 00 0.0 0.0 0.0
8-Unkno wn 18 01819.40.0 19.44 0 4 10.5 0.0 10.5
9-0ther 2 3 1.1 2.2 3.3 1 0 1 2.60.0 2.4
Total 1221 93 17.422.6 100.27 11 38 71.128.9 100.
252

-
-
-
-
-
-
689= 497=
21.5% 19.5% 639=
25.0% 817=
Unknown Astronomical 25.5% 1
434=19.7%
479= 21.8 %
•
2518 Other Other
305= 9.9% 305: 9.9% 233=10.3 % 233=10.3 % 1 1
Aircraft Aircraft
9.6% 474 =21.5% 474 =21.5%
Insuf. Insuf. info. info.
240 = 10.9 %
298= 261= Balloon 527= 642=
9.3% 10.2 % 339=15.4% 339=15.4% 20.6% 20.1%
379=14.8%
450=14.
4
Object sightings All sightings Unit sightings
2199=100% 3201= 100% 2554= 100%
FIGURE 2 DISTRIBUTION OF EVALUATIONS OF F OBJECT,
UNIT, AND ALL SIGHTINGS FOR ALL YEARS
A-7480
18

-
TABLE A238 EVALVATION OE OBJECT SIGHTINGS IN THE STRATEOICARERS
OE THE SOUTH MIOWEST REG1ON
AILANIA WACO SAN ANTONIO BALONCE Of Stn Monest
Per Cent Number Number
Evaluation Doubtful Total Doubtful Total Certain Doubtful Certain Doubtful Certain Doubtul Total Doubthul Certain Doubtful Tota
0-Balloon 5 8 13 7.9 12.720.6 3 37 9.8 2 4 54 5.6 11.2 15 13 25 71 62 33
1-Astronomical 6 10 1 9.5 15.9254 18 28 46220341561 5 10 13.9 278 22 lk 33 10.5 7.4 18
2-Aircraft 8 513 12.7 7920.6 3 7 10 37 85 12.2 4 6 10 114 16.7 273 35 23 55 10277
3-Light Phenom. 0 1140.01.61 0 1.20.0 1.2 11 e 28 0.0 2.812 05 0005
4-Birds 0 00.020203 14 371.2 49 0 0 0.0 2.02022 21.0 651.0
5-Clouds, Dust, etc. 0 0.00000.00 0 000000.00 00 2000200000 442.0
G-insuffic. Into. 1 0 71.1 0.011.1 4 06 7.3 0.0 7.31 012.80.0 2.8 2 02/0.0 2.2.
7-Psychological 2 20.032.3.200 000 0.00.0 0 00 0.0 2.02 314 . 1.51
8-Unknown G 0 9 1430.0 14.3 6 0 4 7.3 0.0 7.38 08 2220.0222 51 0 51243 20.3
9-0ther 1 1 21.6 1.4 3.2 1 0 / 12 2.0 1.2 < 2 2 2.8 2.8 5.6  2 7 2.412 30
Total 37 264358741.3100. 41 41 8252050.0100. 2214 3641/389100. 155 552013825.250.
-- TABLE 8 239 EVALVATION OF OBJECT SIGHTINGS SN THE STRATEGIC IREAS
OF THE 5OUTH WEST REGION
ALBUQUERQUE BALANCE QE SOUTH WEST
Number Per Cent
Evaluation Doubtful Total Certain Doubtfu! Doubtful Total Doubthul Certain Doubtful Total
0-Balloon 5 3 8 5.1 3.1 8.2 23 2 25 18.4 1.6 20.0
0 1-Astronomical 14 28 42 143 28.6 429 17 6 23 13.6 48 18.4
2-Aircraft 8 8 16 82 8.2 16.4 13 26 10.4 0.4 20.8
3-Light Phenom. 0 0.0 0.00.0 2 4 1.6 3.2
4-Birds 0 0010 10 0 1 0.0 0.8
5-Clouds, Dust, etc. 10 1.0 00 1.0 0 2 2 0016 1.6 / 01.000 1.002 00 1.6 1.6
6-Insuffic. Info. 5 0 5 5100 5190 9 5 0 55100 5.1 90 9 72 00 7.2 72 00 7.2
7-Psychological 0 0 00.0.0.0 0.000 00.0 0.0 00 0 0000 0.0 0.0222000.0 00
8-Unknown B-Unknown 21 0·21 214 0.0 21.4 32 0 32 21 0 21 2/40.0 21.432 0 32 25.600 25.6 25.400 25.6
9-0ther 13 4 10 31 4.1 3 0 3 2.40.0 2.4 13 4 10 3./ 4.13 0 3 2.40.0 2.4
Total 55 4398 56.43.9100.99 26 125 19.220.8 100. 55 4398 56.43.9100.99 26 125 19.220.8 100
TABLE B240 TABLE A240 EVALVATION OE CBJECT EVALVATION OE OBJECT SIGHTINGS IN THE STRATEGIC PREAS SIGHTINGS IN THE STRATEGIC PREAS
OF OF THE SOUTH FARWSST THE SOUTH FARWEST REGION
LOS ANGELES LOS ANGELES BALANCE OF SOUTH FARWEST
Number Per Cent Number Per Cent
Evaluation Doubtful Total Total Certain Doubtul Total Doubtful Doubtful Total Certain Doubthul Dou btful Tofal
0-Ballioon 0-Balloon 16 8 8 24 9.0 9.5 28.5 1 / 2 3 53 53 10.5 15.8 15.8
1-Astronomical 7 11 11 4.8 8.3 8.3 13.1 / 3 4 4 5.3 15.8 21.1
2-Aircraft 11 51631 5 16 13.1 62 6.0 19/ 213 19/ 2 / 3 05 10.5 52 5.2 15.7 157
3-Light Phenom. 0 2 2400 24 / 5.3 0.0 5.3
4-Birds 0 0 2 0.0000.0 Q 0.000 00
. 5-Clouds, Dust., etc. 0 0000.0000 0 0 0.00.0 00
6-Insuffic. info. 1 078.30.0831 01 5.3 0.0 5.3
7-Psychological 2 / 3 24 12 3.6 1 01 5.3005.3
8-Unknown 14 0 14 17.7 0.0 147 1 21 53 0.05.3
9-0ther 7 0 7 83 0.0 8.3 1 4 5 53 21.1 26.4
Total 63 21 8415.0 25.0100.9 10 19 47452.6100
253 and 254

APPENDIX B
WORKING WORKING PAPER PAPER FORMS FORMS
-
---
255 and 256

INDEX OF FORMS
Page
Exhibit Bl. Exhibit Bl. Tentative Tentative Observers Data Sheet 259 259
Exhibit B2. Tentative O Observers Questionnaire 267 267
Exhibit B3. U. S. Air Force Exhibit B3. U. S. Air Force T Technical Information Sheet. 277
Exhibit F B4. Codes for Work Sheet 289 289
Exhibit B5. Work Sheet . . Exhibit B5. Work Sheet . 297
Exhibit B6. Codes for Card 301
• Exhibit I Card Bible 309
Exhibit 313
---
257 and 258

--
I
-
-- EXHIBIT B1
TENTATIVE OBSERVERS DATA SHEET
---
259 and 260

TENTATIVE
OBSERVERS DATA SHEET
Where Choice is Given, Circle Proper
Answers, or Insert Answer
1. Date of your observation:
Day Month Year
2. Date you reported the eobservation:
Day Month Year
3. What time was it when you sighted the object:
Hcurs Minutes
A.M. P.M. Daylight Standard
Zone: Eastern, Central, Mountain, Pacific,
Other
4. 4. Length of t Length of time object was observed. time object was observed. Estimate: Estimate:
Hours Minutes Seconds
5. Where observed:
Postal ddress City or Town State Country Country
6Wnere were you at time of observation: 6. Wnere were you at time of observation: .
Inside building, In Car, Inside building, In Car, Outdoors,
Other Other
7. Were you moving at a time during this sighting:
Yes or No
8. Did you stop at any time during this sighting:
Yes or No
9. If you were moving - give and miles per hour.
Direction Speed
10.I How was object observed: Naked eye
Eye glasses
Other glass (Window or Windshield)
Binoculars, Telescope, Theodolite
Cther
11. How did you happen to notice the object:
- 261

i. Speed j. Other
from view: Gradually -
13. Suddenly or
Circle One
|
14. At any time did the object:
a. Change direction. b. Change speed. c. Move behind something; Cloud, 0
House, Tree, House, Tree, d. Blend Dieid wlcn backgr ground. aid. e Decrease Decrease
Other Other -
1
in size. f. in size. f. Decrease in brightness. itness. 2 8. g. Move in front of Move in front of something. something
I
h. Other Other
15. 15. ection were you facing?
16. object, what directi acing?
17. In the following Sketch A, draw lines 7.7
0
arc to show the apparent elevation of the Directly
object in the sky. Overhead
A. When first seen, label a
When last seen, label b.
Cbserver's H-rizn
Lye
SKLTCH A
262

18. On the following Sketch B, label a at
when first seen and b at point last Overhead
seen. Trace the apparent path of
the object between and b.
If possible label 1, 2, 3, etc.,
along the traced path to show the
successive positicns of the object Observer's Horizon
after equal intervals of time dur- Eye
ing the sighting. SKETCH B
19. In Sketch C please show the In Sketch C please show the
observed features of features J the object
such as;
A. A A. A Apparent shape, (were edges Apparent shape, (were edges
pointed or rounded),
B. Apparent direction of Apparent direction of motion motion
(snow by arrow), and
C. Other details, exhaust, trails,
tails, surfaces, etc. SKETCH C
20. 1
size. In this sketch D, show the apparent size of what you saw.
SUN OEJECT MCON
SKETCH D
263

—
-
-
21. In your own words please describe the sighting you observed. Use sketches -
Include a description of the weather, -
wind, and cloud conditions at the time of this sighting. I
-
/ -
264

22. Your full name:
23. Your address:
24. Your occupation:
25. I Last school you attended:
26. Y Year of last attendance at this school:
27. persons who discussed this sighting
with you. It is not necessary to the names of officials or investigators.
•
28. Further comsnts which you believe are important should be entered here.
Use additional sheets of the same size if nocessary.
---
265 and 266

--
,
EXHIBIT B2
TENTATIVE OBSERVERS QUESTIONNAIRE TENTATIVE OBSERVERS QUESTIONNAIRE
•
---
- 267 and 268

1952 8661
-
195
1950 Unknown 1952
434 = 19.7 % Astronomical
19
479 = 21.8 %
1952
Other 1947-51
233 = 10.3 % 233 = 10.3 %
1949-51 1949-51 Aircraft
1948 Insuf. info. 474 = 21.5 % 474 = 21.5 %
1947
240=10.9%
Balloon
1952 1952 339=15.4% 1952
48
1947
0 1952 1951
FIGURE 3 DISTRIBUTION OF OBJECT SIGHTINGS BY EVALU-
ATION FOR ALL YEARS WITH COMPARISONS OF
EACH YEAR FOR EACH EVALUATION GROUP
A-7481
19

TENTATIVE
OBSERVERS QUESTIONNAIRE
SECTION A
1.
1.1 Date: Day Month Year
--- 1.2 Time of Day: - A.M. or P.M. (Circle One)
Hrs. Min.
1.3 Time Zone: (Circle One):
a. Eastern d. Pacific
0 b. Central e. Other
c. Mountain
(Circle One): a. Daylight Saving Daylight t Saving
C C b. Standard Standard
1.4 Circle one of the following g to indicate how certain you are of to indicate how certain you are of
your answer to the above question l.2: your answer to the question l.2:
a. Certain c. c. Not very sure
b. Fairly certain Fairly certain d. Just a guess Just a guess
2. Where were you when you saw when you saw the object: the object:
Postal Address City or Town State Country
• Additional Remarks:
3. Where were you located when you saw the object:
(Circle One): Inside a building d. In an airplane
b. In a car e. At sea
c. Outdoors f. Other
3.1 Were you:
(Circle One): a. In the business section of a city?
b. In the residential section of a city?
c. In open countryside?
d. Flying near an airfield?
e. Flying over a city?
f. Flying over open country?
g. Other
269

-
1
4.How did you happen to notice the object?
1
1
5. had seen the object?
-
Day Month Year
1
1
SECTION B
6What were you doing at the you saw the object? -a
6.1 What had you been doing for the 30 minutes before you saw the object? 1 |
Try to list the activity or activities and the approximate amount Try to list the activity or activities and the approximate amount
of time spent on each.
1
7. Were you moving at any time while you saw the object? (Circle One): (Circle One):
Yes or No
IF you answered YES, then complete the following questions:
7.1 What direction were you moving?
(Circle One): a. North e. South
b. Northeast f. Southwest
C. East g. West
d. Southeast h. Northwest
7.2 How fast were you moving? miles per hour.
7.3 Did you stop at any time e while you were looking object?
(Circle One): Yes or No
8. first saw the object?
(Circle One): a. North e. South
b. Northeast f. Southwest
c. East g. West
d. Southeast h. Northwest
270

8.1).
a. Certain c. Not very sure
b. Fairly certain d. J Just a guess
9. Were you wearing eye object? (Circle One):
Yes or No
10. H 10. How was the object seen?
(Circle One): a. Through window glass Through window glass e. Through theodolite
b. windshield f. Through n sunglasses sunglasses
c. Through binoculars g g. Through open space
-- -- c. Through telescope h. Other Other
11. 11. What do you remember aboutt weather - ons at saw the saw the -
object?
I 11.1 CLOUDS (Circle One) 11.1 0 CLOUDS (Circle One) 11.3 WEATHER (Circle One) WEATHER (Circle One)
a. Clear sky a Dry
b. Hazy Fog, Mist, or light rain
• c. Scattered clouds Moderate or heavy rain
d. Thick or heavy clouds d. Snow
e. Don't remember e.
11.2 WIND (Circle One) 11.4 TEMPERATURE -
No wind a. Cold
b. Slight breeze b. Cool
c. Strong wind Warm
d. Don't remember d. Hot
e. Don't remember
2
SECTION
12. Estimate how long you saw the object?
Hours Minutes Seconds
271

-
12.1 Circle one of the following to indicate how certain you are of your -
answer to Question l2:
a. Certain c. Not very sure 1
b. Fairly sure d. Just a guess
13. Did the object look: (Circle One) Solid or Transparent -
14. 1
(Circle One for each question)
14.1 Change direction? Don't know 1
14.2 Change speed? Don't know
14.3 Change size? 39 2|||/ Don't know 1
14.4 Change color? Don't know
14.5 Break up into parts or Don't know
explode? M
14.6 Give off smoke? 313 Don't know
14.7 14•7 Change brightness? Change brgntness? 121811 Don't know Don't know
14.8 Flicker, throb, or Yes NO Don't know Don't know | -
pulsate? pulsate?
14.9 Remain motionless? Remain motionless? Yes No Don't know Don't know
15. 15. Did the object give off a light? ( Did the object give off a light? (Circle One): Yes No (Circle One): Y Yes No$ Don't know
-
16. Tell in a few words Tell in a few words th gs about the e object? object?
16.1 Sound
16.2 Color
17. IF there was MORE THAN ONE object, then how many were there?
direction they were traveling.
18. I Did the object at any time:
13.1 (Circle One) Yes No Don't know
what it moved behind.
272

19. Which the following the object
yous saw? (Circle One):
a. Pea f. Automobile
b. Baseball g. Small airplane
c. Basketball h. Large airplane
d. Bicycle wheel i. Dirigible
e. Office desk j. Other
.... 19.1 you are of your
answer to Question 19.
a. Certain c. Not very sure
b. • Fairly certain Fairly certain d. d. Uncertain Uncertain
0. 20. Try to tell the following Try to tell the following things about things about the object:
I 20.1 How high above the earth was it? How high above the earth n was it? feet. feet.
20.2 How far was it from you? feet or miles.
20.3 How fast was it going? How fast was it going? miles per hour. hour
20.4 Circle one of the following to indicate how certain you are of ou are your your
answer to the above questions: answer to the above questions:
a. a. Certain c. Not very sure
b. b.I Fairly certain Fairly certain d. Just a guess
2l. How did the object disappear from view?
.
(Circle One): Suddenly c. Other
b. Gradually d. Don't remember
SECTION D
22 In the following sketch, imagine your eye at the point showm. Place an "A"
on the curved line to show how high the object was above the horizon
(skyline) when you first saw it. Place a "B" to show where it was when
you last saw it. Overhead
I
R Horizon
You
273

-
-
23. when -
you first saw it, and a "B" at its position when you last saw it.
Overhead
I
1
Horizon
You 1
1
24. Draw a picture that will show the motion that the object made. Place an
"A" at the beginning of its path and a
1
1 1
1 |
| -
25. Draw a picture that will show the shape of the object. Label and include
in your sketch any details of the object that you saw and place an arrow
beside the draving to show the direction the object was moving.
274

-
SECTION E
seen an object like this?
(Circle One): Yes or No
26.1 IF you answered NO, then when, where, and under what conditions did
you see other ones?
I
—
27. In your opinic vou the object was and what might have caused
it?
--
28. Give the following information about yourself:
-
NAME Last Name First Name First Name Middle Name
ADDRESS Street Street City Zone Zone State
City
TELEPHONE NUMBER
What is your sent job?
Age
Sex
29. Was anyone else with you at the time you saw the object?
(Circle One): Yes or F No
(Circle One): Yes 8 0 or No
29.2 Please list addresses:
275

-
I
-
30. Please add here any further comments which you believe are important. Use addi tional sheets of the size paper, i cessary. -
-
-
1
1
| -
-
-
276

-
-
-
. 0
EXHIBIT B3
- U. S. AIR FORCE TECHNICAL INFORMATION SHEET
I
--
-
277 and 278

U.S. AIR FORCE TECHNICAL INFORMATION SHEET
This questionnaire has been prepared so that you can give the U. S. Air Force as much
information as possible concerning the unidentified aerial phenomenon that you have observed.
Please try to answer as mar questions as you possibly can. The information that you give will
be used for research purposes, and regarded as confidential material. Your name will not
be used in connection with any statements, conclusions, or publications without your permission.
We request this personal information so that, if it is deemed necessary, we may contact you for
further details.
When did you see the object? 2.Time of day:
Hour Minutes
Day Day Month Month Year (Circle One): (Circle One): A.M. A.M. αr or P.M. P.M.
3. Time zone:
Eastern (Circle One): a. Daylight Saving
b. Central b. Standard
c. Mounta in Mountain
d. Pacific
- e. Other e. Other
4. Where were you when you saw the object?
Nearest Postal Address City or Town State or Country
-
Additional remarks:
5. Estimate how long you saw the object.
Hours Minutes Seconds
5.1 Circle one of the following to indicate how certain you are of your answer to Question 5.
a. Certa in c. Not very sure
Fairly certa in d.Just a guess
What was the condition of the sky?
(Circle One): a. Bright daylight d. Just a trace of daylight
b. b. Dull daylight Dull daylight e. e. No trace of daylight No trace of daylight
c. c. Bright twilight Bright twilight f. Don't remember
7.1 7. IF you saw the object during DAYLIGHT, TWILIGHT, or DA IF you saw the object during DAYLIGh HT, TWILIGHT, or where was th SUN located as you looked at SUN located as you looked at
the object?
Circle One): a. In front of you (Circle One): a. I In front of you d. To your left To your left
.In back of you b. In back of you e. Overhead Overhead
c. To your right c. To your right f. Don't remember
-
279

No. of object sightings
2199 79 143 186 169 121 1501
100
90 Unknown 90
80 80
Other
70 70
Insuf.
60 T -info. 60
50 50 Balloon Balloon 50
Pen n
20 40 40
30 Aircraft
30
20 20 20
10 Astronom 10
fical
0 0
All years 1947 1948 1949 1950 1951 1952
FIGURE 4 DISTRIBUTION OF OBJECT SIGHTINGS BY EVALUATION FOR ALL YEARS AND EACH YEAR
A-7482
.

-
I
IF you saw the object at NIGHT, TWILIGHT, or DAWN, what did you notice concerning the STARS and MOON?
8.1 STARS (Circle One): 8.2 MOON (Circle One): -
a. None a. Bright moonlight
b. A few b. Dull moonlight -
c. Many c. No moonlight - pitch dark
d. Don't remember d. Don't remember -
Was the object righter than the background of the sky? -
(Circle One): a. Yes b. No c. Don't remember
-
IF it was BRIGHTER THAN the sky background, was the brightness like that of an automobile headlight?:
(Circle One) a. A mile or more away (a distant car)? (Circle One) a. A mile or more away (a distant car)? |
b. Several blocks away?
c. A block away? c. A block away?
d. Several yards away?
e. Other
1 |
Did the object: Did the object: (Circle One for each question)
a. Appear to stand still at any time? a. Appear to stand still at any time? Yes Yes No Don't Know
b. Suddenly speed up and rush away at any time? Ce eL Yes Yes No Don't Know -
c. Break up into parts or explode? Yes No Don't Know
d. Give off smoke? Yes No Don't Know
e. Change brightness? Yes No Don't Know
f. Change shape? Yes No Don't Know
g. Flicker, throb, or pulsate? Yes No Don't Know
. Did the object move behind something at anytime, particularly a cloud?
( Circle One): Yes No Don't Know. IF you answered YES, then tell what
it moved behind:
. Did the object move in front of something at anytime, particularly a cloud?
(Circle One): Yes No Don't Know. IF you answered YES, than tell what
it moved in front of:
Did the object appear: (Circle One): (Circle One): a. Solid? b. Transparent? b. Transparent? c. Don't Know. c. Don't Know.
Did you observe the object through any of the following? 15. Did you observe the object through any of the following?
a. Eyeglasses Yes No e. Binoculars Yes
b. Sun glasses Yes No f. Telescope Yes No
c. Windshield Yes Yes No g. g. Theodolite Yes No
d. Window glass Yes No No h. h. Other
280

--
16. Tell in a few words the following things about the object.
a. Sound
.Color
17. Draw a picture that will show the shape of the object or objects. Label and include in your sketch any details
of the object that you saw such as wings, protrusions, etc., and especially exhaust trails or vapor trails. Place
an arrow beside the drawing to show the direction the obje ect was moving.
0
18. The edges of the object were:
(Circle One): a. Fuzzy or blurred e. Other
b. Like a bright star
c. Sharply outlined
d. Don't remember
1. IF there was MORE THAN ONE object, then how many were there?
Draw a picture of how they were arranged, and put an arrow to show the direction that they were traveling.
---
:
281

-
-
Draw a picture that will show the motion that the object or objects made. Place an "A at the beginning
of the path, a "B' at the end of the path, and show any changes in direction during the course. -
-
-
-
feet. -
22. How large did the object or objects appear as compared with one of the following objects held in the hand How large did the object or objects appear as compared with following objects held in the hand 1
and at about arm's length?
(Circle One): a. Head of a pin Head of a pin g. g. Silver dollar Silver dollar
b. Pea h. Baseball Baseball
c. Dime Dime i. Grapefruit
d. Nickel i. Basketball Basketball
e. e. Quarter k. k. Other 1
f. f. Half dollar
a. Certain c.Not very sure
b. Fairly certain d. Uncertain
23. How did the object or objects disappear from view?
24. In order that you can give as clear a picture as possible of what you saw, we would like for you to imagine that you could
construct the object that you saw. Of what type material would you make it? How large would it be, and what shape
would it have? Describe in your own words a common object or objects which when placed up in the sky would give the
same appearance as the object which you saw.
282

2Where were you located when you saw the object? 2Were you (Circle One)
(Circle One):
a. In the business section of a city?
a. Inside a building b. In the residential section of a city?
b. In a car c. In open countryside?
c. Outdoors d. Flying near an airfield?
d. In an airplane e. Flying over a city?
e. At sea f. Flying over open country?
f. Other _ g. Other
0
28.1 What direction were you moving? (Circle One)
a. North c. East . South g. West
b. Northeast d. Southeast f. Southwest h. Northwest
28.2 How fast were you moving? miles per hour.
(Circle One) Yes No
29. What direction were you
a. North c. East e. South g. West
b. Northeast d. Southeast f. Southwest h. Northwest
30. What direction were you looking when you last saw object? (Circle One)
a. North c. East e. South ii West
b. Northeast d. Southeast f. Southwest Northwest
If you are familiar with bearing terms (angular direction), try to estimate the number of degrees the object was
from true North and also the number of degrees it was upward from th horizon (elevation).
31.1 When it first appeared: 31.1 When it first appeared:
a.From true North .From true North degrees. degrees.
.From horizon b.From horizon. degrees.
31.2 When it disappeared: 31.2 When it disappeared:
a.From true North a.From true North degrees.
b. From horizon degrees. degrees.
S
283
-

-
In the following sketch, imagine that you are at the point shown. Place an "A" on the curved line to show how 1
32. high the object was above the horizon (skyline) when you first saw it. Place a "B" on the same curved line to
show how high the object was above the horizon (skyline) when you last saw it. -
-
-
-
/1
-C
0|
|
In the following larger sketch place an "A" at the position the object was when you first saw it, and a "B" at its
A
284

What were the weather conditions at the time you saw the object?
34.1 CLOUDS (Circle One) 34.2 WIND (Circle One)
a. Clear sky a.No wind
b. Hazy . Slight breeze
-- c. Scattered clouds c. Strong wind
d. Thick or heavy clouds d Don't remember
e. Don't remember
34.3 WEATHER (Circle One) 34.4 TEMPERATURE (Circle One)
a. Dry a. Cold
b. Fog, mist, or light rain b. Cool
c. Moderate or heavy rain Warm
d. Snow d. Hot
e. Don't remember e. Don't remember
3.When did you report to some official that you had seen the object? 3.When did you report to some officia I that you had seen the object?
Day Month Year Year
Was anyone else with you at the time you saw the object? 36 Was anyone else with you at the time you saw the object?
(Circle One) Yes No
36.1 IF you answered YES, did they see the object too?
(Circle One) (Circle One) Yes No
36.2 Please list their names and addresses:
Was this the first time that you had seen an object or objects like this?
(Circle One) Yes No
37.1 IF you answered NO, then when, where, and under what circumstances did you see other ones?
In your opinion what do you think the object was and what might have caused it? In your opinion what do you think the object was and what might have caused it?
- 285

-
1
(Circle One) Yes No
IF you answered YES, then what speed would you estimate? m.p.h. -
object was? -
(Circle One) Yes No
IF you answered YES, then how far away would you say it was? feet.
ollowing information about yourself: 1
NAME Last Name First Name Middle Name 1
ADDRESS ADDRESS Street Street Zone State - 1
City
TELEPHONE NUMBER TELEPHONE NUMBER
What is your present job? 1
Age Age Sex Sex
Please indicate any special educational training that you have had.
a.Grade school e.e. Technical school
High school _ (Type)
c. College f. Other special training
d. Post graduate
42.Date you completed this questionnaire: Month Year
Day
286

U. S. AIR FORCE TECHNICAL INFORMATION SHEET
S1 DATA)
In order that your information may be filed and coded as accurately as possible, please use
the following space to w a short description of t ent that you observed. You may re-
peat information that you have already given in the questionnaire, and add any further comments,
statements, or sketches that you believe are important. Try to present the details of the observa-
tion in the order in which they occurred. Additional pages of the paper may be attached
if they are needed.
NAME (Do Not Write in This Space)
(Please Print)
CODE:
SIGNATURE
DATE
-
287
-

-
-
1
I
1
-
-
-
288

-
-
EXHIBIT B4 EXHIBIT B4
CODES FOR WORK SHEET
-
-
289 and 290

No. of object sightings
70 55 83 127 129 183 638 407 166 125 106 105 100
100
-un RMOUn
90 90
80 80
70 insuy oj! 70
60 suoo 60
50 50 50
12 2 40 40
Peeot b  u Js
30 30 30
+
20 20
10 10
0 0
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
FIGURE 5 DISTRIBUTION OF OBJECT SIGHTINGS BY EVALUATION WITHIN MONTHS FOR ALL YEARS
4-7483

-
-
CODES
CODE 1. GENERAL
---- a. Every column a must have at least one entry. If no data are
available for any column, the Y should be used.
b. If a number in any column
Code fo the specific
column.
CODE 25 DURATION UNITS CODE 28 LATITUDE CODE 32 LONGITUDE
X South h latitude X East longitude
Y MO
0 Days O
1 Hours
2 Minutes
3 Seconds Sec nds
HNmor∞ HNM∞
or∞ vnor∞ nor∞ nor∞a
9 9 9
CODE 41 POSITION CODE 41 POSITION CODE 42 MOVEMENT OF OBSERVER
X Variable Variable X
Y
0 Wasn't moving
1 In car Was moving - stopped
2 Outdoors Was moving
In plane
In building
mtnor∞ NmtnorMa
9 Other
CR
-
291

I
-
CODE 43 OBSERVATION METHOD CODE 44 SOUND
X Variable |
Y
Naked eye O Motors
H Eye glasses Jet or 1 rockets 1
2 Window Explosion
3 Windshield Unlike e aircraft
4 Binocular Hiss, swishing, whining 1
5 Telescope Rumbling
6 Theodolite Humming or buzzing
7 Radar None 1
8 Photographic Not stated
9 9 Other
1
CODE 45 COLOR CODE 46 NUMBER CODE 47 LIGHT-COLOR
X Variable X X Variable
Y Y
0 Metallic Metallic O White 1
1 1 Light-glow-luminous III III 1 Black
2 2 Red Grey
3 Orange oNNMAO ONNMO - 1 Red
4 Yellow Yellow - - Orange
5 Green 1 Yellow
6 Blue - 7 - 10 Green Green
7 Violet Violet 7 - 11 - 20 Blue
8 Black Black 8 -20 -30 8 -20 - 30 8 Violet
White - 31 31 or more 9 Other
CODE 48 SPEED CODE 49 SHAPE
X Variable Variable
Y Y
0 Hovering, stationary Ellipse
Less than 100 m.p.h. 1 Rocket
100-400 m.p.h. 2 Conventional aircraft
More than 400 m.p.h. 3 Unconventional aircraft
Meteor like Meteor, comet
Not stated Lenticular
vnor∞a Conical
Tear drop
Flame, tails, fire
9 Other
292

---
CODE 51 SUBTENDED VISUAL ANGLE
CODE 50 SHAPE PARAMETER a/b (Referred to sun diameter)
X - Variable in size
Y Y
0.0 0- 0.1
- 0.05 1 -0.2
2 - 0.1 0.5
3 - 0.2 3 - 0.75
0.3 - 1.0
5 0.5 456 - 1.5
6 0.75 -2.0
7 - 0.9 - 4.0
8-1.0 8 - 4.0 to 10.0
9 Other - Other
CODE 53 ANGULAR VELOCITY
X Decreased Variable Variable
Y
0 Sunlight on mirror mirror Zero
1 Sunlight Sunlight on on aluminum Very slow, 10 slow, 1o per second
AHOHNMUN Sunlight on on plaster plaster Slow, 3° per Slow, 3° per ' second second
Sunlight on stone on stone Moderate, 6 per second
Sunlight on soil on soil Rapid, 120 per Rapid, 12o per second
Brighter than moon than moon Very fast, 300 Very fast, 30o per second per second
Like moon Extremely fast, 90 per second Extremely fast, 9oo per second
Duller than moon More than per second per second
Barely visible Barely visible 8
9 o Other Other Other
CODE 54 ANGULAR ACCELERATION
(Change in Angular Velocity) CODE 55 APPEARANCE BEARING
Variable X
Y
Zero, V=constant O-N
Increasing slowly 1 - NE
Decreasing slowly 2 - E
Increasing fast 3 - SE
Decreasing fast 4 - s
I Increasing very fast 5 - SW
Decreasing very fast 6 - W
7 - NW
∞ 8
9 9
293

-
-
1
CODE 57-58 ELEVATION
CODE 56 DISAPPEARANCE_BEARING WITH RESPECT TO GROUND. DEGREES
X - Disappeared suddenly - Initial Final
Y Variable X Variable
O-N Y 1
1 - NE 0 0-9
2 - E 10-19
3 - SE 20-29 1
4 - S 30-39
5 -SW 40-49
6 - W 50-59 1
7 -NW 60-69
8 70-79 1
80-89
9
•I
CODE 61 OBJECT ORIENTATION CODE E 61 OBJECT ORIENTATION
Apparent inclination of principal 1 |
axis of axis of object from horizontal rom horizontal CODE 62-63-64 CIVILIAN OCCUPATION
X Variable Dictionary of Occupational ccupational Titles, |
Y Vol. II, 2nd Edition, pp. XIX-XXVI. Vol. II, 2nd Edition, pp. XIX-XXVI.
0 +90 to 60 +90 to 60 U.S. Department of Labor, Bureau of f Labor, Bureau of
1 +60 to 30 +60 to 30 Employment Security. U.S. Government Employment Security. U.S. Government
2 +30 to 10 Printing Office, Washington, D. Printing Office, Washington, D. C., 1949. ,1949.
3 +10 to 0 See pp. See pp. XIX-XXVI. XIX-XXVI
vn 0
mvnor∞ 0 to -10
-10 to -30
-30 to -60
-60 to -90
9
CODE 65 SERVICE CODE 66 DUTY
X
Y
0 Army Pilot
1 Navy Weather tech.
2 Marine 2 Radar tech.
3 Air Force 3 Tower op.
Coast Guard 4 Balloon obs.
Merchant 5 Tech. spec.
Commercial Air 6 Guards, lookouts
7 CAA Ground or deck crews
8 Gov't. Contractor Navig. or bombardier
9 Other
294

CODE 67 RANK EQUIVALENT CODE 76 EVALUATION OF OBSERVER RELIABILITY
X Officer X
Y MOH
O Lt. 2nd 0 Private Complete
l Lt. lst 1 Private, lst Cls. Quite
2 Capt. Corp. Fair
Maj. 3 Serg. Doubtful
A Lt. Col. 45 S. T. Serg. Poor
5 Col. M. Serg. ~mvnor∞a Not
6 Brig. Gen. 6 Warrant Off.
7 Maj. Gen. 7 Chief Warrant
8 Lt. Gen. ∞
9 General Can't be judged
CODE 78 PRELIMINARY IDENT IFICATION
X X Possibly Possibly
Y Y NO NNON
0 0 Complete Complete Balloon Balloon
1 Quite 1 Astronomical Astronomical
2 2 Fair 2 Aircraft
3 Doubtful Light phenomenon
4 4 Poor Birds
Not Nmvnor∞ Clouds, dust, etc. Clouds, dust, etc.
nor∞ mvnor∞a Rocket or missile
nor∞a Psychological manifestations
Electromagnetic phenomenon
9 Can't be judged 9 Other Other
CODE 79-80 FINAL IDENTIFICATION
x Probably
Y
0 Balloon
1 Astronomical
Aircraft
Light Phenomenon
Birds
~mtnor∞ Clouds, dust, etc.
Reeket-er-miesile Insufficient information
Psychological manifestations
Eleetremagnetie-phenemenen Unknown
9 Other
295 and 296

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-
EXHIBIT B5
WORK SHEET
297 and 298

WORK SHEET
Observer's
Data Punched
--- Sheet Card
Question Column Code Description
1*
Incident serial
Serial No. number
ms
Serial No. Insertion
7
8 Day
9
1. 10 Month
11 11
12 Year Observed
I 13 13
14 14 Day Day
15 15
2. 16 16 Month Reported
17 17
18 Day
19
20 20 Month Rec'd ATIC
21
22 Hrs. Hrs. Time of observation
23 Greenwich C. T.
3. 24 Min.
' 25 Time Units Duration of
26 observation
4. 27 Duration
28*
29
30
31 Latitude
32*
Location
5.
Longitude
Cosine latitude
Denotes separate code key is needed.
299

1
1
1
Observer's 1
Data Punched
Sheet Card
Question Column Code Description
--
6. 41* Where observer was
7.8. 42* Moving - Stopped
10. 43* How observed
12a.44* Sound
12c.45* Color 1
12e.46 Number
12. 12g. 47 Light-color Appearance 1
12i. 14b. 48* Speed Description
12b. 19 49* Shape
12b. 19 50* a/b
12d. 14e.20 51* Size
12f. 14f. 52* 12f. 14f. 52 Light brightness
53* 53 Angular velocity
4.12h. 14. 18.19 54* Angular acceleration Motion Motion
15. 55* Describe appearance
13.14.16 56 56* Describe disappearance Describe disappearance 1
57* Initial elevation
17. 58 Final elevation Elevation
59
12i. 21. 60 Altitude, l000 ft. Altitude Altitude
18.19. 61* 61* Object orientation
62* 62
63
24. 64 Civilian occupation
65* Observer
66*
24. 67* Service occupation
68
69
70
71
72
73
74
75
76 Observer
77* Report Evaluation
78 Preliminary
79* Identification
80* Final
* Denotes separate code key is needed.
300

-
:
-
EXHIBIT B6
CODES FOR CARD BIBLE
•
-
am
E
C 301 and 302

Information Sheet
are available for any column, the Y (or 12 punch) should be used.
b.
46,47,48,49, , 50, and 5l are calculated from data appearing in the
U. S. Air Force Technical Information Sheet (Form A). If the basic
data for these calculations are not available, the appropriate columns
are left blank.
c. If a number in any column is used to enter data, then X (or 11 punch)
data as indicated in the Code for
CCDE 7 SIGHTING IDENTIFICATION
(This (This column may or may not column may or may not CODE 22 CODE 22 LOCAL SUN TIME LOCAL SUN TIME
contain multiple punches) contain multiple punches) (Refers to date (Refers to date of G.C.T. observation)
×
0 Same day Same day
All sightings Previous day
Unit sightings, Unit sightings, all observers
Unit sightings, single observers
Unit sightings, Unit t sightings, multiple observers multiple e observers
Object sightings
P
CODE 23-26 LOCAL SUN TIME
(Calculated from G.C.T.,
date, latitude, and longitude) CODE 27 LATITUDE CODE 31 LONGITUDE
South Latitude X East Longitude
9
303

TABLE OF CONTENTS
Page
SUMMARY. . . vii
INTRODUC TION 1
ORIGIN AND NATURE 3
REDUCTION OF DATA ORM 4
Questionnaire . . . . 4
Coding System and Work Sheet . . 6
Identification of Working Papers. . . 7
Evaluation of Individual Reports . . . 10
ANALYSIS OF THE DATA. . 14
Frequency and Percentage Distributions by Characteristics . . 14
- . . . 16
Advanced Study of the Data . . . 16
Position of the Sun Relative to the Observer . . . 16
Statistical Chi Square Test . . . 60
The "Flying Saucer" Model . . 76
0
CONCLUSIONS . . 94
APPENDIX A. TABULATION OF FREQUENCY CRCENTAGE
DISTRIBUTIONS BY CHARAC TERISTICS 95
APPENDIX B. WORKING PAPER FORMS 255
LIST OF ILLUSTRATIONS LIST OF ILLUSTRATIONS
Figure I Frequency of Sightings by Year for Object, Figure 1 Frequency of Sightings by Year for Object, Unit, and All Sightings 17
Figure 2 Distribution of Evaluations of Object, Distribution of Evaluations of Object, Unit, and All Sightings for and All Sightings for All Years All Years 18
Figure 3 Figure 3 Distribution of Object Sightings by Evaluation for Distribution of Object Sightings by Evaluation for All Years With Comparisons All Years With Comparisons
of Each Year for Each Evaluation Group of Each Year for Each Evaluation Group 19
Figure 4 Distribution of Object Sightings by Evaluation for All Years and Each Year 20
Figure 5 Figure 5 Distribution of Object Sightings by Evaluation Within Months for All Years . 2 21
Figure 6 Distribution of Object Sightings by Certain and Doubtful Evaluations for
0 All Years and Each 22
Frequency of Object Sightings
Months, 1947-1952 . : 23
Figure 8 Distribution of Object Sightings by Sighting Reliabili Groups With
Evaluation Distributions for Each Group 24
Figure 9 Distribution of Object Sightings Among the Fc Reliability
Groups for All Year 25
Figure 10 Distribution of All Sightings by Sighting Reliability Groups, Segregated
by Military and Civilian Observers, ribution
for Each Segregation 26
Evaluation Distribution for Each 27
Figure 12 Distribution of Object Sightings by Number of Objects Seen per Sighting
With Evaluation Distribution for Each Group 28
Figure 13 Distribution of Object Sightings by Duration of Sighting With Evaluation
Distribution for Each Duration Group 29
iii

1
20 10 30
1 Astronomical 1
All years
-
- 0-
1
Aircraft 1
All years
- 1
O-N
-
- 1
Balloons
All years 1
-
- -N •|
-
- -
1 952
1 1
Insuf. info.
All years
1 1
--- ---- 444554 0- 0-N
1
-
Unknown Unknown 1
All years
7
I
- ∞0-2
-
I
Other
All years
I
I
- S44554 0-
-
-
-
30 20 10 0 I0 30
Certain Per Cent Doubtful
FIGURE 6 DISTRIBUTION -
DOUBTFUL EVALUATIONS FOR ALL YEARS AND EACH YEAR
A-7484
22

-
1
1
Punched
U. S. Air Force Technical Card 1
Information Sheet Question Column Code Description
1
Hour -
Angle
42*
43* Angle of 1
Elevation
of the
Sun
47* Group Classification
48 Sun
49. Bearing
50 50 Angle Angle
51*
52* Time Units I
Duration Duration
5. of Observation 1
55* Group Classification Group Classification
15. 56* How Observed
16a. 57* Sound
16b. 58* Object Color
16b. 17. 59# Light Color Physical
60% Color Group Color Group
Classification Classification
19. 61* Number
lla. 11b. 39. 62* Speed
17. 18.24. 63 Shape Description 1
11f. 21. 22.24. 64* Size
10. 1le. 65* Light Brightness
5.11, 17. 20. 66÷ Angular Velocity Motion
33. 67* Angular Acceleration
2.31.1. 68* Appearance Bearing
2. 30.31. 2. 69* Disappearance Bearing
31. 32. 70% Initial Elevation Description
71* Final Elevation
72* Orientation
73* Maneuvers
41. 74* Observer Occupation
75* Observer Rating Observer
76* Report Rating
77* Reliability Group
Classification
78* Final Identification
* Denotes that separate code key is needed.
304

CODE 48-51 SUN BEARING ANGLE
CODE 47 GROUP CLASSIFICATION (Calculated)
(Derived from the angle of elevation) CODE 51 SUN BEARING ANGLE
East of the Meridian
0
1 -79.99° to + 79.99°
2 +80.00° to +89.99°
3 +90.00° to +100.00°
+100.01° to 130.00°
+130.01° to +180.00 and -180.00° to -100.01°
-100.00° to -90.01°
7 -90.00° -80.00°
8
9 9
CODE 52 DURATION TIME UNITS CODE 55 DURATION GROUP CLASSIFICATION
X X
H Y Y
0 O Days Days 0 5 second and less
1 1 Hours 6 - 10 seconds 6 - 10 seconds
2 Minutes 11 - 30 seconds
Seconds Seconds 31 - 60 seconds seconds
OHNMUNN 61 seconds - 5 minutes
6 - 30 minutes
Over 30 minutes
9 9
CODE 56 OBSERVATION METHOD CODE 57 SOUND CODE 58 OBJECT COLOR
Variable X Variable X
Y
Naked eye 0 Motors Metallic
Eye glasses 1 Jets or rockets 1 Light, glow, luminous
2 Window Explosion 2 Red
3 Windshield Unlike aircraft Orange
Binocul ar Hiss, swishing, whining Yellow
56 Telescope Rumbling Green
Theodolite Humming or buzzing Blue
7 Radar None Violet
Photographic 8 Black
Other Other 9 White
305

-
-
CODE 59 LIGHT COLOR CODE 6O COLOR GROUP CLASSIFICATION CODE 61 NUMBER -
Variable Light glow
1
White XHOH White
Black Metallic
Grey 2 Red -
Red Orange
Orange Yellow
Yellow Green -
Green Blue 7 -10
Blue Violet 7 11-20
Violet Black 8 21-30 -
9 Other 9 Other 31 or more
1
CODE 64 SUBTENDED VISUAL ANGLE
CODE 62 SPEED CODE 63 SHAPE (Referred to sun diameter)
Variable X A Variable varlable Decreased in size Decreased in size
Y Y -
Hovering, stationary 0 0 Ellipse 0.1
Less than 100 mph 1 1 Rocket Rocket 0.2
100 - 400 100 - 400 mph 2 Conventional aircraft Conventional aircraft 0.5 0.5 —
More than 400 mph Unconventional aircraft 0.75 0.75
Meteor-like Meteor, comet 1.0
Not stated Lenticular 1.5 1.5 -
Conical Conical 2.0
7 7 Teardrop Teardrop 4.0 4.0
8 8 Flame, tails, fire 4.0 to 10.0
Other 9 Fire
CODE 65 LIGHT BRIGHTNESS (Intensity) CODE 66 ANGULAR R VELOCITY
X Decreased Variable
Y AHON
0 Sunlight on mirror Zero
1 Sunlight on aluminum Very y slow, 1o per second
2 Sunlight on plaster Slow, 3° per second
Sunlight on stone Moderate,6 per second
Sunlight on soil Rapid, 12° per second
Brighter than moon Very fast, 30 second
Like moon Extremely fast, 90 per second
Duller than moon More than 90° per second
Barely visible 8
9 Other Other
306

-
CODE 67 ANGULAR ACCELERATION
(Change in angular velocity) CODE 68 APPEARANCE BEARING
Variable
Zero, V- constant N
Increasing slowly NE
Decreasing slowly E
XHOHNUN Increasing fast SE
Decreasing fast s
Increasing very fast SW
08 Decreasing very fast W
NW
CE 9 9
0 ELEVATION
CODE 70-71
CODE 69 DISAPPEARANCE BEARING WITH RESPECT TO GROUND DEGREES
X Disappeared suddenly Disappeared Initial Final
N X Variable X Variable
Ne XHO Y XNO
E 0 O 0-9
Se 10-19 1 10-19
S 2 20-29
SW SW 30-39 30-39
W 40-49 3356
NW 50-59 50-59
60-69 60-69
7 70-79
80-89 8
. 9
CODE 72 OBJECT ORIENTATION
Apparent inclination of principal
axis of object from horizontal CODE 73 MANEUVERS CODE 74 OBSERVER OCCUPATION
Variable X
Y Civilian, occupation not stated
0 +90° to 60° 0 Army, military
1 +60° to 30° 1 Navy, military
2 +30° to 10° Marine, military
+10° to Air force, military
0° Coast guard, military
0^°to -10o Nmo∞ Merchant marine, military
-10^°to -30^ Commercial air, civilian
7 -30° to -60° CAA, civilian
8 -60° to -90° Government contractor, civilian
9 Civilian, other
307

I
1
CODE 76 EVALUATION OF R&PORT RELIABILITY 1
DE 75 EVALU..TION OF OBSERVER R*LIABILITY
X X 1
Y
Complete 0 Complete
Quite 1 Quite 1
Fair 2 Fair
Doubtful Doubtful
Poor Poor 1
Not Not
-
Cannot e judged Cannot be judged
1
CODE 77 RELIABILITY GROUP CLASSIFICATION .
(Based on observer and report ratings) CODE 78 FINAL IDENTIFICATION
X X Probably Probably
Excellent (Observer O or 1 and Reort O or 1) Excellent (Observer 0 or 1 and Reoort O or 1) Y —
Good (Observer 0 Good (Observer O 1, Report 2, 3, or 4; O Balloon
Observer 2, 3, or Observer 2, 3, or Repo: Repc or l; Observer Astronomical
2, Report2 2, Report Aircraft
Light phenomenon Light t phenomenon
- Birds
Clouds, dust, etc.
or 9, Report 0, 1, 2, 3, or 4) Insufficient information
Poor (Observer 5, 9, or Y, Report 5, 9, or Y) Poor (Observer 5, 9, or Y, Report 5, 9, or Y Psychological manifestations Psychological manifestations
Unknown Unknown
9 9 Other Other
4
308

•
EXHIBIT B7
CARD BIBLE CARD BIBLE
0
--
309 and 310

-..
CARD BIBLE
Punched
U. S. Air Force Technical Card
Information Sheet Question Column Code Description
1
Serial
No. Identification
m Serial
Sub- Number
Serial No.
738 Sighting Identification
8
9 Serial Incident
10 No. Serial
11 Number
12
Day
1. 1.
Month Observed
17 Year
18 18 Time of
19 Hours Hours Observation
20 Greenwich Greenwich
23. 2.3. 21 Minutes C.T.
22* Key
23 Local
24 Hours Hours Sun
25 Time
26 Minutes
27*
28
29 Latitude
30
313F Location
4. Longitude
36* Regional Area
37 Strategic Area
* Denotes that separate code key is needed.
(or l1 Punch) in Column -'
311

-
-
I
Punched
U. S. Air Force Technical Card 1
Information Sheet Question Column Code Description
-
Hour I
Angle
42*
43* Angle of 1
Elevation
of the
Sun 1
47* Group Classification
Sun |
Bearing
Angle
51* —
52# 52* Time Units
53 Duration Duration
5. 5. 54 54 of Observation of Observation
55* 55* Group Classification
15. 56# How Observed
16a 57* Sound
16b. 58* 58* Object Color
16b. 17. 16b. 17. 59# Light Color Light Color Physical
60# Color Group
Classification
19. 61# 1# Number Number
1la.11b.39. 62# Speed
17. 18.24. 63 Shape Description 1
11f.21.22.24. 64* Size
10,11e 65* Light Brightness
66* Angular Velocity Motion
33. 67* Angular Acceleration
2.31.1. 68* Appearance Bearing
230312. 69* Disappearance Bearing
31. 32. 70* Initial Elevation Description
71* Final Elevation
72* Orientation
73* Maneuvers
41. 74* Observer Occupation
75 Rating Observer
76* Report Rating
77* Reliability Group
Classification
78# Final Identification
* Denotes that separate code key is needed.
312

-
EXHIBIT B8 EXHIBIT B8
EXAMPLE OF AN IBM CARD
C
-
313 and 314

-
Observed Lati- Angle of Duration Sound Shape
tude Eleva- of Obser- Number
Light Color Maneuvers
Serial Number Regional Area Strategic Area tion of vation Final Elevation
Subserial Number G. C. the Sun Light Brightness Blank - Unused
Angular Acceleration Observer Reliability Sighting Reliability
Time Disappearance Bearing
Day Month Year Group Group
Degrees Degrees Duration
Hundredths Time Units
Hours Minutes
18 19 24 7 29 31 32 BF 53 39 42 91 42 844 85 45 48 189 50 51 5R H0CC6U00 00 879
00
00OOOOCO0C0O0O 00OC 00OO0OOGE00OO 0 0 0 0 9 G C G O 0 5
1224 T6 31:22 4 814. 65 C 334583 2O 51 5 53 5 5S St 57 3 5t 51 + 1 Eu
11111 111111 11111 1 1 1 11 13111 1101 1101 111C1 11 111111110 1111111 11 11101011 1 11 11 1111 1 11 11 11 1) - 1 - -
2 2 22 2E2 2 22.22 2252 22.2 2253 22 22 22 2 22 223 2 2a2 22 22 222 22 229 222 20 2 2 22 2E2 2 22.22 2252 22.2 22E3 22 22 22 2 22 225 2 22 22 22 220 22 22 2 D 0 CV N C 2 2 C 18M
1:3 1: E 25 2E 1.930 29.30 31 39 40 1 42 4.48 56 50 55 55 233 CV53 C 22 11 3 E 6E GE 223 13 NE3 NN3 4 Te T CIm 73 73 ET EXAMPLE OF AN IBM CA
3 33 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3  3 3 3 3 3 3 3 3 3 3 3 3 5 3 3 3 3 2 0 3 3 3 3  3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 313 3 3 3 3 3  3 3 3 3 3 3 3 3 3 3 3 3  3 3 3 3 2  3 3  3 3  3 3 33 7 C2 C 27 27 M 3 2 C 3 142 L5 L 3 233
315 and 316 EXHIBIT B8 EXHIBIT B8
4 444 4 4444 44444 4444544444484 4444454 4 4 444434444 44 44 4 44 44 4 4 4 4 4 4444 4 4 44 4 4 4 44 F4 44 4 4 4B4 44 4 4 42 44 4 44 44 34 44 4 44 4 4 4 4 4 44 44 4 5 -r - -r 4 -T 4 -SERVICE BUPEAU
1: 578 3728 272 29.30 9.30 51 33 51 32 1e4 536 39 4 1 353 445 40 e4 505 36 38 4 41 3 43 445 40 7429 55 52 53 73 57 4 45 53 5 45 L 45 4 C LE OF AN IBM CARD
55 5 LD 5 5 $5 5) (5)
5 5 5 5 5 5  5 5 5 5 5 5 5 6 8 5 5 5 5.2 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5  5 5 5 5 5 5 5 8 5 5 5 15 55 5 55 55 555555 5 55 5 555555 5 55 51 5 5
666 56686 666S66E5 6550 E E 66 6 5 S 5 6EE6668626566666G6 6EE 6 a 6 E66666 66 S 6 Co CC C) CE) CE CD C CD E CL3 C3 CO CO 5 3 C C2 CED
E E8 E 10 IT IF iF a 51 352334 23 51 35 34 25 1453 43 55.40 1S 505H 5 63 S 12 Ta R 75
?7 77 7 77 7 7777 7 7 7 7 7 7.7 7 7 2 7 77 7 7 7 717 7 7 7 7 7 7 77 77 77 7 7 7 7 75 r 7 7 7 1
ES88 saea 8 ε85 C 2 0 8 a 3 on 8 S 888 ε CO 88 US NO CS co LO C cO
? F 1 36 4 42 :5 46 47 49 E! 33
999 3 c ^ 0 S 9 C 9 a 2 .0 C) 0 ta 7 4 ( - S 5
7
18M71727
Hundredths Hundredths
Hours Minutes Degrees Degrees
Key
Sighting Identification Incident Serial Number Observer Occupation Final Identification
Sun Angular Velocity Initial Elevation Report Reliability Blank - Unused
Local Bear- How Observed Object Color Color Group Initial Bearing
Orientation
Sun Longi- Hour ing
Time tude Angle Speed Size

500
400
300
200
'go
60
50
40
2
30 30
ALA
4
20 20
10
All object
sightings Unknown
object sightings
o
SON o
1947 1948 1949 1950 1951 1952
FIGURE 7 FREQUENCY OF OBJECT HTINGS BY MONTHS,
1947-1952 C-7485

-
1
Unknown Astro- Astro-
72=16.6% nomical Unknown nomical 1
99=22.8% 71=33.3% 52=24.4%
Other 213=
46=10.6 435= 1
100 % Aircraft 100 % Aircraft
Insuf. 69=15.9%
info. 0/0 41=19.2% 1
93=21.4% Balloon Other
=91 Balloon
56=12.9% 25= 1
11.8 %
Excellent
Poor Insuf. info. 1
213= 9=4.2 %
435= 9.7 % 1
19.8 %
•|
2199= -
100 % 100 % 757= 757=
34.5% 1
794= 794= -
36.0 %
1 -
Doubtful Good
Unknown Astro- Astro-
103= nomical Unknown nomical
Other 13.0% 154=19.4% 188= 174=23.0% .
97=12.2% 24.8 %
794= 757=
Insuf. 100% Aircraft Other 100% Aircraft
info. 198=24.9% 75=9.9% 166 =
III= 22.0%
4.0% Balloon Balloon
131 = 16.5% 127=16.8%
Insuf. info.
27=3.6 %
FIGURE 8 DISTRIBUTION OF OBJECT SIGHTINGS BY SIGHTING
RELIABILITY GROUPS WITH EVALUATION DISTRIBUTIONS
FOR EACH GROUP
A-7486
24

No. of object sightings
2199 79 143 186 169 121 1501
100 I00
Excellent
90 90
80 80
Good
70 -70
60 60F -60 760
Peee d Pee ad 50 -50
20
40 Doubtful Doubtful -40 40
30 30 30
20
10 Poor 10
o 0
All years 1947 1948 1949 1950 1951 1952
FIGURE 9 DISTRIBUTION OF OBJECT SIGHTINGS AMONG THE FOUR SIGHTING RELIABILITY
GROUPS FOR ALL YEARS AND EACH YEAR
A-7487

Astronomical info.
Aircraft Balloon Unknown
0 50 1000 25 75 100 50 75 1000 50
45 Per Cent.
40
35
20 2R0 30 30
cett ceatt 25 Civilian Civilian Civilian
20
15
10 Civilian
Civilian Military
5 Military
Military Military
O
Excellent Good Doubtful Poor
FIGURE IO DISTRIBUTION OF ALL SIGHTINGS BY SIGHTING RELIABILITY GROUPS. SEGREGATED BY
MILITARY AND CIVILIAN OBSERVERS WITH EVALUATION DISTRIBUTION FOR EACH
SEGREGATION A-7488

100 100
90 Unknown 90
80 80
Other
o 7
Insuf.
info.
60
50 Balloon 5 o
4
Aircraft
3 of 3 3
2 O o 20
Astro-
nomical
lot l0t 10
0
Not
White Metallic stated Orange Red Other
23.5 % 17.7 % 12.3 % 8.1% 28.4 %
FIGURE DISTRIBUTION OF OBJECT SIGHTINGS BY REPORTED COLORS
COLOR GROUP
A-7489
27

—
-
I00 -100
-
80- -80
-
60- 3-10 objects Il or more objects -60
255= 11.6 % 66=3.0% 1
-40
dnoog 1
20- 20
1
Cron  n d 2199=
100 % |
% 6'8=961 %12=96
I object 1
80- 1636 = 74.4 %
1636 = 74.4 % 1 1
60 6 O - Nqwnb -60 60
40- 40- -40 40
20- 100 100 -20
20- Unknown
Proon 80- 8 o Others Others
Insuf. info.
Balloon 0
40- Aircraft
20-
Astronomical
FIGURE 12 DISTRIBUTION OF OBJECT SIGHTINGS BY NUMBER OF
OBJECTS SEEN PER SIGHTING WITH EVALUA ON DISTRI-
BUTION FOR EACH GROUP
A-7490
28

100 Astronomical Aircraft Balloon Insuf. info. Other Unknown
90- Not
stated
80- 24.9%
Over 30 min
70- 7.8 %
60 6-30 min
17.1%
Pen at 50- Im
61 sec-
40- 40- 5 min
320 16.7% 16.7%
30- 30- 31-60 sec
6.8 %
11-30 sec
20- 8.5 %
6-10 sec
5.1 %
10- 5 sec or
less
O 13.0 %
Duration
10 20 30 40 50 60 70 80 90 100
Evaluations in Per Cent
FIGURE 13 DISTRIBUTION OF OBJECT SIGHTINGS BY DURATION OF SIGHTING WITH EVALUATION
DISTRIBUTION FOR EACH DURATION GROUP
A-7491

No. of object sightings
100 70 55 83 127 129 183 638 407 166 125 106 105 I00
90 90
Not
stated
80 80
7 O 70
30min Ovel
60 60
6-30
min min
50 50 50 50 Peee d
Pe ed
300 09-10 61sec 61sec
40 to to 40
5 min
Peeeot b  un Js
30 30 30
sec
6-10
sec 20
20
5 sec
10 and 10
less
0
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
FIGURE I4 DISTRIBUTION OF OBJECT SIGHTINGS BY MONTHS AMONG THE EIGHT DURATION
GROUPS FOR ALL YEARS A-7492

23.5% Astronomical Aircraft BalloonInsuf. info.- Other Unknown
90- Not
stated
80-
11.2%
70- Other
Flame 4.8%
60- Lenticular conica
or teardrop
cent Meteor Meteor or comel or come 5.7% 5.7%
c 50- ROcker Rocker and and
aircraft aircraft
Per
Cl CE 40- == I o
30-
Elliptical
20-
10- 47.0%
Shape
0 i0 20 30 40 50 60 70 80 90 100
Evaluation in Per Cent
FIGURE 15 DISTRIBUTION OF OBJECT SIGHTINGS BY SHAPE OF OBJECT(S) REPORTED WITH
EVALUATION DISTRIBUTION FOR EACH SHAPE GROUP
A-7493

1
1
LIST OF ILLUSTRATIONS
(Continued)
I
Page
Figure 14 Distribution of Object Sightings by Months Among the Eight Duration
Groups for All Yea 30 1
Figure 15 Distribution of Object Sightings by Shape of Object(s)
Evaluation Distribution for Each Shape 31
I
Figure 16 Distribution of Object Sightings by Reported Speed
Evaluation Distribution for Each Speed Group 32
Figure 17 Distribution of All Sightings by Observer Location for Years and Each Year 33 -
34
Figure 19 Comparison of Known and Unknown Object Sightings by Number of Objects -
per Sighting, 1947-1952 .. 35
1947-1952 36
Figure 21 Comparison of Known and Unknown Object Sightings by Duration, 37
.
38
39
Figure 24 Figure 24 Comparison of Monthly Distribution of Object Sightings Eva Comparison of Monthly Distribution of Object Sightings Evaluated Astronomical
Versus Total Object Sightings Less Astronomical. Versus Total Object Sightings Less Astronomical. 40 40 —
Figure 25 Comparison of Monthly Distribution of Object Sightings Evaluated as Aircraft Aircraft
Versus Total Object Sightings Less Aircraft Versus Total Object Sightings Less raft 41 41
Figure 26 Comparison of Monthly Distribution of Object Sightings Evaluate Cvaluated Balloon
Versus Total Object Sightings Less Balloon. . 42
Figure 27 Comparison of Monthly Distribution of Object Sightings Evaluated as Insufficient Figure 27 Comparison of Monthly Distribution of Object Sightings Evaluated as Insufficient
Information Versus Total Object Sightings Less Information Versus Total Object Sightings Less Insufficient Insufficient Information 43
Figure Figure 28 Comparison of Monthly Distribution of Object Sightings Comparison of Monthly Distribution of Object Sightings Evaluated as Other Evaluated as Other
Versus Total Object Sightings Less Other Versus Total Object Sightings Less Othe 44
Figure 29 Comparison of Monthly Distribution of Object Sightings Evaluated as Unknown Figure 29 Comparison of Monthly Distribution of Object Sightings Evaluated as Unknown
Versus Total Object Sightings Less Unknown U
45
Figure 30 Characteristics Profiles of Object Sightings by Total Sample, Known Evaluations,
and Individual Known Evaluations, With Unknown Evaluations 4 .
Figure 31 Frequency of Object, Unit, and All Sightings Within the U. S., 1947-1952, by
Subdivisions of One Degree of Latitude and Longitude
Figure 32 Distribution of Object Sightings by Evaluation for the Twelve Regional Areas of
the U. S., With the Strategic Areas Located 48
Figure 33 Comparison of Evaluation of Object Sightings in the Strategic Areas the
Central East Region .
49
Figure 34 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
Central Midwest Region
Figure 35 Comparison of Evaluation of Object Sightings in the Strategic Areas the
Central Farwest Region 5
Figure 36 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
South Midwest Region .
2
South West Region . .
• • 53
iv

100
Astronomical Aircraft Balloon Insuf. info. Other Unknown
90-
Speed
80-Inot-stated
37.8 %
70-
60 o KA
50- 50- Over
400mph
2 40- 24.9 % 24.9 %
30- 30- 100-400 100-400
mph
10.9%
20-Less than 20 Less than
100 mph
8.2%
10- Stationary
13.7 %
O_
Speed
0 10 20 30 40 50 60 70 80 90 100
Evaluation in Per Cent
FIGURE I6 DISTRIBUTION OF OBJECT SIGHTINGS BY REPORTED SPEED
EVALUATION DISTRIBUTION FOR EACH SPEED GROUP
A-7494

No. of all sighting
3201 117 205 164 306 160 2018
100- -100
Location
90- not -90
stated -
80- -80
70- -70
60- 60- Outdoors
-60 -60
50- -50
40- 40- -40
cent Cent 30- 30- In bldg. -30
Der 20- In plane -20
10- -10
In car -o
O_
All years 1947 1948 1949 1950 1951 1952
FIGURE 17 DISTRIBUTION OF ALL SIGHTINGS BY OBSERVER LOCATION FOR ALL YEARS AND
EACH YEAR
A-7495

.
TotalLess Unknown Unknown
Per Cent
25 20 15 5 0 10 15 20 25 30 L
White
Metallic
Not stated
Orange Orange
Red
Other
FIGURE I8 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY COLOR,I947-I952
A-7496
. -
- -- -

.
Total Less Unknown Unknown
Per Cent Per Cent
50 30 20 10 0 10 40 50 60 70 80
L
One
Two Two
3 Three Three
to
ten
Eleven
or
more
Not stated
FIGURE I9 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY NUMBER OF
OBJECTS PER SIGHTING,1947-1952
A-7497

Total Less Unknown Unknown
Per Cent Per Cent
40 35 30 25 20 15 10 0 5 10 30 40
Stationary
Less than
100 mph
100 to 400 100 to 400
3 mph mph
More than
400 mph 7
Meteor-like
Not stated
FIGURE 20 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY SPEED,I947-I952
4-7490

---- -----
Total Less Unknown Unknown
Per Cent Per Cent
30 25 20 15 I0 5 20 25 30
L
5 seconds
or less
6-10
seconds
11-30 11-30
seconds
31-60
seconds
61 seconds
5 minutes
6-30
minutes
More than
30 minutes
Not stated
4-7499

Total Less Unknown Unknown
Per Cent Per Cent
50 45 40 35 25 20 15 10 0 5 25 30
Elliptical
Rocket
and
aircraft
Meteor or
comet
Lenticular,
conical or
38 teardrop teardrop
Flame
Other shapes
Not stated
FIGURE 22 COMPARISON OF KNOWN AND UNKNOWN OBJECT SIGHTINGS BY SHAPE,I947-I952
A-7500

•
Total Less Unknown Unknown
Per Cent Per Cent
60 50 40 30 20 10 0 50
Sunlight on
mirror or
aluminum
Sunlight on
plaster,
stone or soil
Brighter
30 than moon than moon
30
Like moon
Duller
than moon
Not stated
FIGURE 23
1947-1952
A-7501

Total Less Astronomical Astronomical
Per Cent Per Cent
40 30 20 I0 O 10 20 30 40
J
January
February
March
April April nn
May -
O June
July July
August August
September
October
November
December
FIGURE 24 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS
ASTRONOMICAL VERSUS TOTAL OBJECT SIGHTINGS LESS ASTRONOMICAL
A-7502

Total Less Aircraft Aircraft
Per Cent
40 30 20 10 30 40
January
February
March n
April
May May
June
July
August August
September
October
November
December
FIGURE 25 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS
AIRCRAFT VERSUS TOTAL OBJECT SIGHTINGS LESS AIRCRAFT
A-7503

----
LIST OF ILLUSTRATIONS
(Continued)
Page
Figure 38 Comparison of Evaluation of Object Sightings in the Strategic Areas of the
South Farwest Region . . 54
Figure 39 Diagram of a Celestial Sphere. 56
n of the Sun, Intervals
of 10 Degrees 57
Figure 41 Frequency of Object Sightings Local Sun Time Intervals of One e Hour . 59
Table I Object Sightings 60
Table II Chi Square Test of Knowns Versus Unknowns on the Basis of Color 62
Table III Chi Square Test of Knowns Versus Unknowns on the Basis of Number . . 63
Table . 64
0 Table , 65
06
67
Table VIII Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Color 70
Table IX Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Number. . 71
Table 72
Table XI Chi Square Test of Revised Knowns Versus Unknowns on the Basis of XI Chi Square Test of Revised Knowns Versus Unknowns on the Basis of
Duration of Observation .. . 73
Table XII Chi Square Test of Revised Knowns Table XII Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Speed Versus Unknowns on the Basis of Speed 74
Table XIII Chi Square Test of Revised Knowns Versus Unknowns on the Basis of Light Brightness. . 75
0
-.
-
-
v and vi

Total Less Balloon Balloon
Per Cent
30 20 10 10 30 40
January
February
March
April —P..
May May
42 June
July July → ¬
August August
September Septemher
October
November
December
FIGURE 26 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED
AS BALLOON VERSUS TOTAL OBJECT SIGHTINGS LESS BALLOON
A-7504
.

Total Less Insufficient Information Insufficient I Information
Per Cent
40 30 20 I0 0 20 30 40
January
February
March o0nn
April
May
June
A E
July
August August
September Sept ember
October
November
December
FIGURE 27 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS
INSUFFICIENT INFORMATION VERSUS TOTAL OBJECT SIGHTINGS LESS INSUFFI-
CIENT INFORMATION
A-7505

Total Less Other Other
Per Cent
40 20 10 0 30
January
February
March
April
May May
A June June
July
August
September
October
November
December
FIGURE 28 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS
OTHER VERSUS TOTAL OBJECT SIGHTINGS LESS OTHER
A-7506
.

Total Less Unknown Unknown
Per Cent
40 30 20 10 0 I0 30 40
January
February A
March
April
May May
June
July ¬
August
September
October
November
December
FIGURE 29 COMPARISON OF MONTHLY DISTRIBUTION OF OBJECT SIGHTINGS EVALUATED AS
UNKNOWN VERSUS TOTAL OBJECT SIGHTINGS LESS UNKNOWN
A-7507

40 Unknown
20 1
B80
1
60
SuMous Gee ad 40
Unknown 1
20
88
60
1
40 Unknown
20 •|
88 88F
60 60 1 -
AIOO pean a
40 Unknown
-
20 20
88
B00l0g B0ol0g 60 60
40 40 Unknown
20
88
60 .
Othr Pee a
40 Unknown
20
more ic stated 2 e a/c less min
One WO to stated e Orange Red o ical cular her or sec sec
Three Eleven or Not 4 Meteor 4 Lent sec 0
100 6 11 61 Over
Number of Color Speed Shape Duration
objects
FIGURE 30 CHARACTERISTICS PROFILES OF OBJECT SIGHTINGS S BY
TOTAL SAMPLE, KNOWN EVALUATIONS, AND INDIVIDUAL KNOWN
EVALUATIONS, WITH UNKNO WN EVALUATIONS SUPERIMPOSED
B-7508
46

800 750 700 650
1300 125° 120° 115° 1100 1050 1000 950 900 850
22
0 1
2-
0
mm 3- F-O FFO --O CANADA
0 mmm
14 NN-
17 PAP
MMN NNN MMN 232 45
450 --- 1 -- -
AAA AA m 1 1
4 -- N- - A 1
AAA 1 -FO
- MMM 5- 444
- omm 1 3-- WNN NNN 4mm
NNN ~ 1
1 3mM 1 N-- mmo NNN EEN
OVM OnN TT 13 2N- NNN mm5 NNN 888
NNN NNN AAG 12 t ANA
4- --0 3 on4 -rO NNN mme NNN NN
FFO 1 1 NNN NNN en
400 - NN- 1 2- 9 NN- AAA NAA -FO
AAS 22 98 =0 MNN
8W3 - 2 4 4 282
O-- OVM 31 - 4 282
NN- NNN NNN NNN 31 28 00 8 80 ane aon
AAV NNN -- S 2 -99 NNN AAN 7 1 88 220 mmm 1 15
mMN MMN NNN NN NN- ono one 1 15 11 - 1 8 13 nm 5 22=
$2frac}$ $2frac2 4 }$ 44 NNN FFO 2N- NN- AAA -0 1 0 5 0 0 93 93 ANN 44 NNN
20 mmm 1 0 1 1 n 84 SSR S8R 0.00 D00 115 89 114 4
422 1 1 NNN 2 1 80004 8084 85 75 onn 74
37 AAA NNN mme - -- 1 2-- -00 -0O mmm EEE #1 1 1 NN - 3 1 -E-
- 1 11 1 mm 3 NN -- 1 229
NNN MNN - --- mmm 3mm 1 11 12 onm NNN 1 3
mmm NNN =a0 Y-- Y- NNN 1 7 1 MNN Fano nno 350
350 1 1 2 NNN 1 444 4- - 1
MM2 Mm2 mNN MNN - 1 2- F-- 88 08 1 1 1. NNN 1 12 -
1 S00 S00 - -- - i - 1 1 1' 1 -- F- 17 12 NNN NNN -i
-- 1 mmm 1 NNN ANA 1 - 2 NNN 1 11 5 onn
1 -- 34 - 1 1 1 0 0 i - i - mmm mmm NNN 44 4
1 $\frac{2}$ ¥82 - 1 1 2 MMN 2 3 10 156 3 ANN 4 8n6
1 0 N2 2 2 3 78 93 3m 33 AMN mmm AAA 44A 2 c0m com FFO PFO NNN 2N NN
-- - 13 13 13 An 1 2 1 PP- NNN
10 6 mmm 3 3 - 1 1 43 3 4 9 2- mMN mmN 1 o.
3 FFO F- 1 2 3 4 4 1 1 NNN 3mm 422 442 -- mmm mmm 1 $44ra F0O FOO -- 0mm
3 0 RR NNN NNN 1 - 13 1 2 3e 1 now non $48 36
MNN 1 1 1 6 5 2 4 3 AA 2- 2 mmN 3 NN- mmN MNN FFO
4 on 1 1 i 4 3m 4 0 1 onm mmn -
300 00∞ 12 6 10 $255 1 oum omN N-- 65P EAST OF MAINE 600
6 5 8 19 2- $1\rac}$ $20 mm NNN ar 3 NNN
iS 9 18 3 mm
1 16 - i 1 93 69 1 2-
9 46 0 1 28 =00
N-- 1 4 16 15 18
i 4 2-- C11 16
- 1 A 4 =0
1 i 47 33 9 15 11 53 4 1 3mm R22
30 A4 10 1 --
MEXICO 1 1 pom
1 -
1 1
250 KEY: IN EACH SUBDIVISION THE TOP FIGURE 3 4 20 450
INDICATES THE FREQUENCY OF ALL - an
SIGHTINGS, THE MIDDLE FIGURE UNIT
SIGHTINGS, AND THE BOTTOM FIGURE
OBJECT SIGHTINGS NNN
1200 1150 1100 1050 1000 950 850 800 65P
FIGURE 31 FREQUENCY OF OBJECT, UNIT, AND ALL SIGHTINGS WITHIN THE UNITED STATES 1947-1952, BY SUBDIVISIONS
OF ONE DEGREE OF LATITUDE AND LONGITUDE

130° 125 120° 115 110° 105 100 950 90o 85o 80° 75o 70o 65°
UNKNOWN ASTRO
CANADA 21.9% 18.9%
UNKINOWN ASTRO II
UNKNOWN 17.9% 17.8% OTHER
NORTH FARWEST 125% ASTRO 8.1% AIRCRAFT
95-100% 15.3% OTHER 21.6%
ASTRO D 10.0% 8.1%
450 UNKNOWN 18.9% OTHER AIRCRAFT X BALLOON
22.1% 19.2% AIRCRAFT 9.7% 28.5% INSUF. 216s
23.0% ASTRO INFO.
INSUF. BALLOON
OTHER AIRCRAFT TNSUF. UNKNOWN 17.7% INFO. 16.6% NORTH EAST
9.5% 22.1% INFO. BALLOON 29.0% 37 -100%
INSUF. VLS% 19.2% AIRCRAFT
INFO. BALLOON 14.6%
10.5W 16.8% OTHER
9.6% BALLOON NORTH MIDWEST
INSUF. 16.1% 62-100%
NORTH WEST INFO.
26-100% 12.9%
CENTRAL FARWEST ASTRO
40° 131 - 100% UNKNOWN 13.0%
16.8% 40
OTHER
6.9% AIRCRAFT
INSUF. INSUF. 27.5%
INFO.
16.8% 16.8% UNKNOWN ASTRO ASTRO
BALLOON 25.4% 15.2% 20.6%
19.1% 33.9% CENTRAL EAST CENTRAL EAST
OTHER 393-100% 393 - 100%
OTHER CENTRAL WEST 12.8%
15.3% AIR- 59 =100% 59=100% AIRCRAFT
CRAFT INSUF. INSUF. 20.6% 20.6%
INFO. 10.2 INFO.
80 8.5% 6.8% 6.89 15.2% BALLOON BALLOON SOUTH EAST
22-100% 22- 100% 350
BALLOON 15.5% 15.5%
CENTRAL MIDWEST
374-100% UNKNOWN UNKNOWN
SOUTH FARWEST 18.2% ASTRO
103 - 100% n2.u n2.r
OTHER OTHER
18.2%
UNKNOWN ASTRO AIRCRAFT
14.6% 14.6% UNKNOWN 27.2%
18.9% ASTRO
UNKNOWN ASTRO 28.1% INSUF 9.1 15%
30 OTHER AIRCRAFT 29.1% OTHER INFO. I
18.5% 23.8% 1.2% BALLOON 30
18.4% 55OEASTOF MAINE
INSUF 9.0%
BALLOON OTHER INSUF AIRCRAFT
INFO. 26.2% 7.11 SOUTH WEST INFO. BALLOON 23.3%
7.8% 6.3% AIRCRAFT 223-=100% 13.8%
INSUF BALLOON 18.8%
INFO. 14.8% SOUTH MIDWEST
391 -100%
25o MEXICO
45
120 115° 110 105° 100° 95 90° 85o
650
FIGURE 32 DISTRIBUTION OF OBJECT SIGHTINGS BY EVALUATION FOR THE TWELVE REGIONAL
AREAS OF THE UNITED STATES, WITH THE STRATEGIC AREAS LOCATED (STRATEGIC
AREAS WERE DETERMINED ON THE BASIS OF CONCENTRATION OF OB. SIGHTINGS)

--
. .
80 75 70 6 5
43
he
Unknown Astro
14.8% 18.5 %
Other
14.9% Aircraft
Unknown Astro
10.5% 16.2 % Insuf. 22.2%
Other info.
43 12.3 % 12.3 % Balloon
Unknown 17.3 %
11.5 % Insuf. info. Aircraft
Astro 16.2% 30.5 %
Other 26.2% Newltork
9.8% New/ctork Balance of Central East Balance of Central East
105 object sightings 105 object signtings. Balloon Region Region
Insuf. 61 object sightings 14.3 %
Info Info Balloon 8i object sightings 81 object sightings
1.6 % 21.3% Aircraft Harrisburg
0 60 29.5% 29.5%
Astro
Unknown 15.1 % 36 36
26.7 %
Washington
Aircraft
146 object sightin 146 object sighting Other 30.1%
5.5% Insuf
info. Balloon
6.8%
15.8%
36 80 75 70 6 5
FIGURE 33 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF THE
CENTRAL EAST REGION B-7511

105 95 9 80 75
1000
3
43
43
Chicago
66 abject sighings
Unknown Unknown Astro
13.6% 16.7% Day on Dayfon
Other Other 144 object sightings 144 object sightings
16.7% Aircraft
27.3 % 27.3 %
Unknown Unknown Astro Insuf. info. Insut. info.
20.7 % 20.8% 15.2% Unknown
Balloon 9.7% Astro
Aircraft 10.6% Other 22.2%
11.4 % 13.4 % 12.6% 36
Insuf. info. Balloon Insuf. info Insuf. info 75
16.5 % 17.0% 13.9 % Aircraft
25.7 %
Balloon
Balance of Central 16.0%
Midwest Region
164 object t sightings
36
100 95 90 80
FIGURE 34 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF
THE CENTRAL MIDWEST REGION B-7512

43
Un-
known Astro
6.6 11.6 %
Other %
19.4%
Aircraft
23.6 %
Insuf. info.
16.1% 43
Balloon
22.6 %
Unknown Astro
10.5%
Other 15.8%
7.8 %
Insuf. info.
18.4 % Aircraft
36.9 %
Balloon
10.6%
. Balance of Central
San Francisco
93 object sightings Farwest Region
12/5
38 object sightings 38 object sightings
36. 36
36
0
12/0 11/5
FIGURE 35 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS
IN THE STRATEGIC AREAS CENTRAL FARWEST REGION
B-7513
51

-
1
|
1
1
1
I
1
1 -
U | 1
1
-- |
1

8 o 5
100
36
7
36
Un-
known
Other 7.3%
Ansut 73%
info.
73% Astro
Balloon 56.1%
9.8% Atianta
Aircraft 63 object sightings 63 object sightings
12.2% 12.2%
Unknown
14.3 % Astro
Other 25.4%
8.0 %
82 object sightings 82 object sightings Insuf info Insuf. info.
o 11.1%
Waco Waco
Balloon Aircraft
20.6%
o Unknown Astro
San Antonio 24.3 % 18.1%
36 object sightings
Other Aircraft
6.8 % 27.7 %
Unknown Insuf.
22.2% Astro info.
27.8% 10.0%/Balloon
13.3 %
Other
8.4% Balance of South
Balloon Aircraft Midwest Regian
insuf. info 11.2% 27.8 % 2i0 object sightings
2.8 %
100 95 90 85
FIGURE 36 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS
OF THE SOUTH MIDWEST REGION
B-7514

- C
.
11/5 105
0
36
Astro 98 object sightings
Unknown 18.4% Albuquerque 36
25.6 %
Aircraft Aircraft
Other 20.8%
8.0 % 8.0%
Insut
info. info. Balloon Balloon
72% 20.0%
Unknown Unknown
G 21.4 % m
Balance of South Astro Astro
Other 42.9%
West West Region 6.1% 6.1%
125 object sightings Insuf.info Insuf. info
5.1%
Balloon
8.2% Aircraft
16.4 %
115 110 105 100
FIGURE 37 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN THE STRATEGIC AREAS OF
THE SOUTH WEST REGION A-7515

12/5 120 -
1
-
T
I
36 1
Unknown
5.3%
Astro I
21.1%
Other
36.9 % Aircraft
15.8% 36
84 object sightings
Balloon
15.8% 1
Insuf. Los Angeles
info. 5.3 % --
Balance of South
Farwest Region
19 object sightings
| -
Unknown Astro
16.7% 13.1% 13.1%
Other Aircraft
14.3 % 19.0%
Insuf.
info. Balloon
8.3% 28.5 %
.
120 11/5 11/0
FIGURE 38 COMPARISON OF EVALUATION OF OBJECT SIGHTINGS IN
THE STRATEGIC AREAS OF THE SOUTH FARWEST REGION
B-7516
54

depres-
E
Bwas ob-
tained from the formula:
was constructed (Figure 40). The UNKNOWN OBJECT SIGHTINGS were
then sorted out, counted in the same
(again see Figure 40).
55

-
1
-
-
Z I
90-Lat Ha B 1
90-9
S Equator 1
1
•|
Earth Horizon 1 I
|
—
.
-
A-7535
56

.
300
275
250
225 I 1
Sun,set
200 I I
I
175
150
125 All object sightings
No o Jqwn 100 100
Unknown object sightings Unknown object sightings
75 75 Suni rise I
I
50
25
oL
-90 -60 -30 0 +30 +90 +60 +30 0 -30 -60 -90
Angle of Elevation of The Sun
FIGURE 40 FREQUENCY OF OBJECT SIGHTINGS BY ANGLE OF ELEVATION OF THE SUN, INTERVALS
OF IO DEGREES OF ANGLE
A-7536

The Local Sun Time was computed as a step in the calculation of the
Local Sun Time (L.S.T.) = HA/15 + 12.00, where L.S. T. is in hours and
HA in degrees.
The cards were grouped on the basis of L.S.T. in intervals of one
hour. in each interval was counted. Again the
(Figure 41). I
The cards were then broken up into seven the basis of the
Group 1 - Daylight sightings for which the sun was more than
10° above the horizon.
Group 2 - Sunset sightings for which the sun was between 0°
and 10° above the horizon.
Group 3 - Sunset sightings for which the sun was between O°
and 10° below the horizon.
Group 4 - Evening sightings for which the sun was between
10° and 40° below the horizon.
58

•
300
275
250
225
200
175
150 Midnight Midnight Midnight
I
I
36 oo jo Jaqun 125 Noon Noon I
1 1 I
I I I
100 100 All object sightings 1 1
1 m
1 I
75 Unknown object sightings 1
50
25
0
0 0300 0600 0900 1200 1500 1800 2100 2400
Local Sun Time
FIGURE 4I FREQUENCY OBJECT SIGHTINGS TIME, INTERVALS OF ONE HOUR
A-7537

—
-
Group 5 - Night sightings for which the sun was more than 10°
below the horizon and which were not included in
Group 4. -
Group 6 - Sunrise sightings for which the sun was between 0°
1
and 10° below the horizon.
Group 7 - Sunrise sightings for which the sun was between O° 1
and l0° above the horizon.
These group numbers were p punched on the cards and incorporated -
for each identification was then tabulated and is given in Table I. -
TABLE I OBJECT SIGHTINGS |
Angle of Elevation Group
Identification 1 2 3 4 5 6 7
Balloon 156 17 28 83 40 0 2 1
Astronomical 52 43 236 118 9 6
Aircraft 187 23 49 144 60 5 2
Light phenomena 8 2 4 25 7 0 —
Insufficient information 72 12 26 76 28 2 0
UNKNOWN 134 14 25 150 86 6 7
Other 64 8 12 50 36 3 7
Total 673 82 187 764 375 25 24
balloons and which of the UNKNOwNS in Groups 4 and 5 might possibly be
balloons, aircraft, or astron objects.
project later.
Statistical Chi Square Test
In the meantime, mirror graphs had been constructed from the fre-
UNKNOWNS) and the UNKNOWNS were grouped according to one of six
characteristics, the percentage of KNOwNS and epercentage of
60

0 the same total number of elements.)
(2)
group.
(4) Divide the result of Step 3 corresponding number of
adjusted KNOWNS.
This is the chi square for the particular group. Summing the indi-
:lolohi
will indicate
that the two distributions are homogeneous. The term nomogeneity is used
here to indicate that two distributions could have come from the same
population.
61

Evaluation of sighting reports, a crucial step in the preparation of the data
for statistical treatment, consisted of an appraisal of the reports and the
A detailed description of this phase of the study stresses the careful
attempt to maintain complete objectivity and consistency.
cant. An attempt to determine the probability that any of the UNKNOwNS
small.
vii

1
1
1
1
-
-
TABLE II CHI SQUARE TEST OF KNOWNS VERSUS
UNKNOWNS ON THE BASIS COLOR 1
Adjusted $x2,
Number of (K-n)2}$
Color KNOWNS KNOWNS (K) UNKNOWNS (n) K
White 405 100 112 1.44
Metallic Metallic 313 313 77 77 76 76 0.01 0.01
Not stated 209 51 51 62 2.37 - -
Orange 172 42 49 1.17
Red 146 36 33 0.25
Yellow Yellow 128 31 31 0 - -
Green 130 32 14 10.13
Blue 67 17 26 4.76 - -
Other Other 195 48 31 6.02 6.02
Total Total 1765 434 434 26.15
Degrees of freedom 8
5% 15.5
1% 20.1
62

-
----
TABLE III CHI SQUARE TEST OF KNOWNS VERSUS
UNKNOWNS ON THE BASIS NUMBER
0 Number of Adjusted $x^{2$
Objects Per Number of Number of (K-n){2
Sighting Sighting KNOWNS KNOWNS (K) KNOWNS (K) UNKNOWNS (n) UNKNOWNS S (n) K
1 1339 1339 329 297 297 3.11
2 159 39 37 0.10
3-10 185 185 46 70 70 12.52
ll or more 41 10 25 22.50
Not stated 41 10 5 2.50
Total 1765 434 40.73
Degrees of freedom 4
0 5%
9.5
1% 13.3
63

-
-
-
-
-
|
TABLE IV CHI SQUARE TEST OF KNOWNS VERSUS
UNKNOWNS ON THE BASIS C OF SHAPE
1
Adjusted $x^{2
Number of Number of $(K-n)^{2}$
Shape Shape KNOWNS KNOWNS KNOWNS (K) KNOWNS (K) UNKNOWNS (n) UNKNOWNS (n) K K
Elliptical 838 838 206 195 195 0.59 -
Rocket and aircraft 80 80 20 33 33 8.45
Meteor or comet 55 55 14 14 4 4 7.14
Teardrop, lenticular, 103 103 25 22 0.36
or conical or conical
Flame Flame 96 24 10 8.17 - —
Other 193 193 47 54 1.04
Not stated 400 98 116 3.30 3.30
Total 1765 434 29.05
Degrees of freedom 6
5% 12.6
1% 16.8
64

TABLE V CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS
ON THE BASIS OF DURATION OBSERVATION
Adjusted $x^{2
Duration of Number of $(K-n)^{}$
0 Observation KNOWNS KNOWNS (K) UNKNOWNS (n) K
5 sec or less 5 sec or less 259 259 64 64 27 27 21.39
6-10 sec 6-10 sec 92 92 23 23 21 21 0.17
11-30 sec 11-30 sec 153 38 33 0.66
31-60 sec 31-60 sec 108 26 26 42 42 9.85
61 sec-5 min 269 66 99 16.50
6-30 min 305 75 71 0.21
Over 30 min 135 33 37 0.48
Not stated 444 109 104 0.23 0.23
Total 1765 434 434 49.49
Degrees of freedom 7
5% 14.1
1% 18.5
65

-
-
-
1
1
TABLE VI CHI SQUARE TEST OF KNOWNS VERSUS
ON THE BASIS O SPEED 1
Adjusted $x^{2
Number of $(K-n)^{}$
Speed Speed KNOWNS KNOWNS (K) KNOWNS (K) UNKNOWNS (n) K
1
Stationary Stationary 249 249 61 61 53 53 1.05
Less than 100 mph Less than 100 mph 154 38 26 26 3.79
100 to 400 mph 181 45 58 3.76 1
Over 400 mph 403 99 145 21.37
Meteor-like 83 20 16 0.80 1
Not stated 695 171 136 7.16 7.16
Total Total 1765 434 434 37.93 37.93 1 |
Degrees of freedom 5
5% 11.1
1% 15.1
66

-
TABLE VII CHI SQUARE TEST OF KNOWNS VERSUS UNKNOWNS
Adjusted $x^{
Number of Number of $(K-n){}$
0 Light Brightness KNOWNS KNOWNS (K) UNKNOWNS (n) K
Sunlight on mirror Sunlight on mirror 47 47 11 11 14 14 0.82
Sunlight on aluminum 151 151 37 37 28 28 2.19
Sunlight on plaster, 76 19 16 0.47
stone, or soil
Brighter than moon 273 67 61 0.55 0.55
Like moon or duller 68 68 17 22 1.47
than moon
Not stated 1150 283 283 293 293 0.35
Total 1765 434 5.85
0 Degrees of freedom 5
5% 11.1
1% 15.1
67

|
result in the tests made above:
(1) Color —
The major contribution to chi square in color is from the
color green. There is a large excess of green sightings
among the KNOWNS over the UNKNOWNS. Of the 130
known objects in this classification, 98 are astronomical,
and are due mostly to the green fireballs repor rom
These might
be familiar objects for which unusual maneuvers were
reported.
There is a higher percentage of KNOWNS in the flame
and in the meteor- category, which in
both cases appears
astronomical sigh ings.
68

astronomical phenomen easy to identify and there ery few left in
the UNKN OWNS ccordinaly.the astr nomical obiect sigbtings we
out that the reporting of these two characteristics is highly subjective and is
open to question
because of the impossibility of accurately determining it visually.
69

-
-
-
-
1
TABLE VIII -
UNKNOWNS ON THE BASIS OF COLOR
Adjusted $x^{2 |
Number of $(K-n){2$
Color KNOWNS KNOWNS (K) UNKNOWNS (n) K -|
White 281 95 95 112 3.04
Metallic 298 298 101 101 76 6.19 /
Not stated Not stated 189 64 62 0.06
Orange Orange 117 39 49 2.56
Red 92 31 31 33 0.13
Yellow Yellow 90 90 30 30 31 0.03
Green 32 11 14 0.82
Blue 29 10 267
Other Other 158 53 31 0.57
—
Total 1286 434 434 13.40
Degrees of freedom 7
5% 14.1
1% 18.5
70

I
TABLE IX CHI SQUARE TEST OF REVISED KNOWNS VERSUS
UNKNOWNS ON THE BASIS OF NUMBER
0 Number of Adjusted $x^{2
Objects Per Number of $(K-n){2$
Sighting KNOWNS KNOWNS (K) UNKNOWNS (n) K K
1 913 308 308 297 0.39 0.39
2 142 142 48 37 2.52
3-10 168 168 57 57 70 2.96
Il or more ll or more 34 11 25 15.36
Not stated 29 10 5 5 2.50
—
Total 1286 434 23.73
Degrees of freedom 4
0
5% 9.5
1% 13.3
-
C
71

considered to be highly improbabl objects examined in this study represent observations of technological -
is emphasized that there was a complete lack of any valid evidence con- developments outside of the range of present-day scientific knowledge. It
sisting of physical matter in any case of a reported unidentified aerial -
object.
I
I
1
1 1
|
|
-
1
viii

-
-
-
-
1
-
1
TABLE X CHI SQUARE TEST OF REVISED KNOWNS VERSUS
UNKNOW N THE BASIS OF SHAPE
1
Adjusted $x^{2$
Number of (K-n){2$
Shape Shape KNOWNS NNOWNS KNOWNS (K) KNOWNSK) UNKNOWNS (n) UNKNOWNS (n) K --
Elliptical Elliptical 632 213 213 195 1.52
Rocket or aircraft 72 72 24 33 3.37 3.37
Meteor or comet 9 3 4) 4
Flame 47 16 10 1.32
Teardrop, lenticular, 79 27 22 0.93
or conical
Other 151 51 54 1.76
Not stated 296 296 100 116 116 2.56
—
Total 1286 434 11.46
.
Degrees of freedom 5
5% 11.1
1% 15.1
72

TABLE XI CHI SQUARE TEST OF REVISED KNOWNS VERSUS UNKNOWNS
ON THE BASIS DURATION VATION
Adjusted $x^{
Duration of Number of (K-n){2$
Observation cro KNOWNS RIOWTD KNOWNS (K) 1NOWTS(T) UNKNOWNS (n) 1 K
5 sec or less 5 sec or less 92 31 31 27 0.52 0.52
6-10 sec 47 16 16 21 1.56
11-30 sec 118 40 33 33 1.23
31-60 sec 31-60 sec 92 92 31 42 3.90
61 sec-5 min 252 85 99 2.31
6 min-30 min 259 87 71 2.94
Over 30 min 91 31 37 1.16
Not stated 335 113 104 0.72
Total 1286 434 14.34
0
Degrees of freedom 7
5% 14.1
1% 18.5
-
-- 73

1
1
I
1
-
-
-
TABLE XII CHI SQUARE TEST OF REVISED KNOWNS VERSUS
UNKNOW N THE BASIS O F SPEED 1
Adjusted $x^{ 1|
Number of Number of $(K-n)^{2}$
Speed Speed KNOWNS KNOWNS (K) KNOWNS (K) UNKNOWNS (n) K
-
Stationary 196 66 53 53 2.56
Less than 100 mph 128 43 26 6.72
100 to 400 mph 156 156 53 58 0.47
Over 400 mph 291 98 98 145 1
Meteor-like Meteor-like 24 8 16 28.54
Not stated Not stated 491 166 136 5.42
Total 1286 434 43.71
Degrees of freedom 4
5% 9.5
1% 13.3
74

TABLE XIII CHI SQUARE TEST OF REVISED KNOWNS VERSUS
UNKNOWNS ON THE BASIS OF LIGHT BRIGHTNESS
Adjusted $x^{2
0 Number of $(K-n){2$ 2
Light Brightness KNOWNS KNOWNS (K) UNKNOWNS (n) K
Sunlight on mirror 24 8 8 147 14
Sunlight on aluminum 136 46 28S 2.67
Sunlight on plaster, 63 21 16 1.19
stone, or soil
Brighter than moon 143 48 61 3.52
Like moon or duller Like moon or duller 42 15 22 3.27
than moon
Not stated 878 296 293 0.03
Total 1286 434 434 10.68 10.68
Degrees of freedom 4
5% 9.5
1% 13.3
75

that would give a negligible chi square w
since it was felt that the inaccuracies in the reports would give a distorted
and meaningless result. I
The "Flying Saucer" Model
The importance of the problem dictated a second approach, should the
statistical results prove inconclusive. It was decided that an attempt
and other attributes (that is, construct model) of a class or classes of
of the UNKNOwNS might be ascribed to known phenomena. The second was
to obtain those UNKNOWNS which were described in sufficient detail that
they might be used to construct a model or models ving saucers".
It was decided to put any of the UNKNOwNS which r might be known
phenomena into a "possible KNOwN" category to denote the slightly lower
confidence level which could be ascribed to these new evaluations. The
76

distance,
This is a very important point. To put it differently, if these
.
were reported to have performed
mean, but the most logical explanation is that they are ground targets re-
flected by an atmospheric temperature inversion layer. The validity of this
statement cannot be established. It is felt that radar sightings in this study
are of no significance whatsoever unless a visual sighting of the object also
is made.
Taken in conjunction with the Chi Square Tests discussed earlier,
the results of the re-evaluation of reports identified as UNKNOwN
SIGHTINGS would seem to indicate that the majority of them
77

although no trace of it was found. 11
6' to 8' 6' to 8' Y +
T
.0
5%:98-
1-1/2' x 2'
.
→
-These are round cups which protrude
Case II (Serial 4508.00)
A naval aviation student, his wife, and several others were at a
drive-in movie from 2115 to 2240 hours on April 20, 1952, during which
time they saw several groups of objects fly over. There were from two to
nine objects in a group and there were about 20 groups. The groups of
78

objects flew in a straight line except for sor ne changes in direction
accomplished in a manner like any standard aircraft turn.
The objects were shaped like conventional aircraft. The unaccount-
able feature of the objects was that each had a red glow surrounding it and
was glowing itself, although it was a cloudless night.
Light glow
0
Fuzzy area
flying, and then in 2 or 3 seconds it slipped under them, and they did not
it was like an airplane with a cigar-shaped body and straight wings, some-
what larger than a B-29. No engine nacelles were observed c EEE wings.
I
79

-
-|
Case IV (Serial 4599.00)
A part-time farmer and a hired hand were curing tobacco at midnight
on July 19, 1952, when they looked up and saw two cigar-shaped objects. ——
One hovered while the other moved to the east and came back, at which
time both ascended until out of sight. time both ascended until out of sight. Duration of observation was 3 to 4 Duration of observation was 3 to 4 —
minutes. Both had an exhaust at one end, and neither had projections of f any any
kind. It was stated that they appeared to be transparent and illuminated
from the inside.
Lighted D
Exhaust
80

passed. The object seemed powered by rocket or jet motors shooting a
or other protrusion and had two rows of lighted windows.
-
Cockpit
0 windshield?
Pilot
Windows with
white light
0
Black
Copilot
81

which remained unidentified throughout this study. I However, the term
"flying saucers" shall be used hereafter in this report to
airborne phenomeno manifestation that is not a part of or readily ex-
Early in 1952, the Air Force's cumulative study and analysis of
reported sightings indicated that the majority of reports could be accounted
aircraft), a few as the result of mild hysteria, and a very few as the result
of unfamiliar meteorological phenomena and light aberrations. However,
(1)
L
1

off in level flight at a high rate of speed, during which maneuver it appeared 1
white most of the time, but apparently rolled three times showing a red
side. About halfway through its roll it showed no light at all. It finally
assumed a position to the south of the planet Jupiter at a high altitude, at |
which position it darted back and forth, left and right alternately. Total
time of the observation was 15 minutes. Apparently, the observer just 1
stopped watching the object.
1
1 -
White Whit No light
1
Deep red
82

saw it as it maneuvered near the sun.
0
Rotation
/ =
1
/ 1
-- 1 1 -
0
Black lines evenly spaced Proportion 7 to 1
-- (Dimensions are as
shown in observer's
original drawing)
83

-
-
Case VIII (Serial 0576.00)
An electrician was standing by the bathroom window of his home, -
He ran to his kitchen where he pointed out the object to his wife. Total facing west, at 0825 hours on July 3l, 1948, when he first sighted an object. -
time in sight was approximately 10 seconds, during which the object flew
-
-
1
|
-
Noted shadow
T
6' to 8' 6' to 8'
→ 1
'
20'
(Ratio approx. 3:1)
84

over.
No one saw object for more
than a few seconds.
Side view Side view
•
00
CO
End view
85

before it disappeared. Time of observation
was 2-1/2 to 3 minutes. -
1
•|
1
|
Something equivalent 1
to a patch Smoother in
front
Direction
of motion
Rough and wrinkled Surface appeared dirty
in rear and spotty in color
86

mately 3/4 of the distance from the center to the outer edge. Through these
lights. The object was traveling in a straight line without spinning. Con- lights. The object was traveling in a straight line without spinning. Con-
sidering the visibility, the length of time the object was in sight, and the sidering the visibility, the length of time the object was in sight, and the
distance from the object, the Reserve Air Force Captain estimates the from the object, the Reserve Air Force Captain estimates the
speed to be in excess of l000 mph. speed to be in excess of l000 0 mph.
87

1
--
-
Portholes
88

E
which
or mechanical, although it did not have a regular pattern of movement.
revolved in a horizontal plane along the edge of the object. The propellers
were r revolving at a high rate of speed.
Investigation of the area soon afterward showed some evidence of
taken indicated nothing unusual. Reliability of the observer was considered
good.
-
89

-
-
-
-
-
-
1
1
/ •|
00OO00O00O0 0O000O0000 20' to 25' height
reigh
⊥ --
Approximately 75' long
.
90

0 model, or models. The requirement that the description be detailed is an
gram. However, a good model ought to satisfy the following conditions as
well:
(1) The general shape of the object and the maneuvers it
and thus explain them.
(2) The observer a and the e report should be reliable.
(3) The report should contain elements which should have
, and which eliminate the
cases that will satisfy all of these conditions. The following case-by-case
discussion of the 12 good UNK NOwNS will illustrate this point:
(1) Case I does not satisfy Conditions I and 4. The reported
shape of this object is not
UNKNOWNS.
(2) Case II does not satisfy Conditions I and 3. There are
very few UNKNOwNS in the aircraft shape classification.
In addition, the unusual characteristic of this sighting
(i.e., the red glow) could have been reflection of the
lights of Flint from the objects if they were either birds
or aircraft.
91