PROJECT BLUE BOOK

objuct "lcoked like "aro"
Lurce CCO foot.
hovered and novod clowly at
.
2 7-3719
. 1
I
... .

.
2
.
Page 6
a
SECTION D
22. In the following sketch, imagine your eye at the point shown. Place an
"A" on the curved line to show how high the objeot was above the horizon
when you first saw it. Place a "B" to show where it was when when you
laet saw it.
Overhead
- : EHST
- . Horizon
Your eye Your eye
4
23. In the following sketch sketch place an MAN position position the object was the objeot was
when you first saw it, and a "] it, and a "E
a
Overhead
3 EAST
Horizon Horizon
O
I Your eye
.
24. Draw a pioture that will show the motion that the object made. Place Sc.
an "A" at the beginning of its path and a
95MILES
DUE EAST
A.W.S.
OBSV PoS1 TRaVsL pUE wsST
1.90
/1038
Reor
SERRANEYDI
-517 APR A000 FT. MTS.

E MRS
WIFE
.
30. Please add here any further comments which you believe are important.
Use additional sheets of the same Lze paper if necessary:
We served duning dhe last
wan and wee called back when dhe post cros
reastinated this
gulf.
boeatirn 2 those
rport it on wel. -
-
Cn ilopsu
i ^

26. Was this the I an objeot like this?
(Cirole One): No
26.1 IF you aps NO, then onditions
did you ones?
27. In your opinio t have
caused it?
'TowARDS
28. Give the following about yours
NAME Last Name First Name Middle Name
B
ADDRESS Street Csu
City
TELEPHONE NUMBER
What is your job? Y 1R
Age_43"
Sex MAl
Lest School Attended
Year of last attendance

whit. lights tronling noth -aouthditio.
they inn atbid uh
what we That sut Idn aant pew but
thnt i berew
thope this agwg
qun onsie. hilps in wagyour
innestzito.

2
1 - 1
:
.
1 .
.
ATIC POPM 3ND (REV 24 5EP 52)

.
RR JEPHQ JEDWP 222 5
DE JWPML 23F
R 2518192 R £51819Z O
- 4A
FM CG 28TH ADD HAFB CALIF e
TO JEPHQ/CG HQ USAF WASH 25 D C TO JEPHQ/CG HQ USAF WASH 25 D C
JEDWP/CG WRIGHT PATTERSON JEDWP/CG WRIGHT PATTERSON A CHIO ATIAA-2C C
ZEN/CG ENT AFB CCLO e
ZEN/CG WADF HAMILTON AFB CALIF 7RN
1. ONE CEJECT I CM RANGE OLOR CMA R RESEMPLING FLARE AND CIRCULAR
IN SHAPE PD.
•
2. 2245 PDT CMA 4 AUGUST 1952
3. VISUALLY FRON GROUND .
4 ONE OBSERVER AT MATHER AFB CMA CALIF PD CONTROL TOWER PD ONE AT
SACRAMENTO CONTROL TOWER PD ONE AT MCCLELLAN AFB CMA CALIF PD CONTROL 1 C
TOWER PD OBJECT HEA IMATED ALTITUDE OF
V
25,020 FEET 19
5. A/IC THOHAS THORTON CKA MCCLELLAN AFB COLLINS i
CHA MATHER AFB CKA CALIF PD MR PI
CMA SACR NTC CONTROL OWER PD

•
. ey, .
•
DESVET
. .
m

4686.
AUG 15 1352
Mr
Sacramento-Control Tower
Sacramento, California
Dear Mr. H
.
Your recent report of unidentified aerial phenomena has been
received by the Ar Technical Intelligence Center, Inclosed is a
questionnaire, which, when completed by you and returned in the
inclosed, self-addressed envelope, will aid in standardising the
data and will prov omplete record the urrence.
Your inter cepor tine the matter itad
desire to be o greatly
Sincerely yours,

1. When did you see the objeet:
1.2 Dt: To $e
1.2 Time of day: 19224950 M. or P.M. (Circle One)
Hrs. Min.
a. Eastern d. Pacifio
b. Central e. Other
c. Mountain
(Circle O Daylight t Saving
b. Standard
1.4 Circle one of the following to indicate how certain you are
of your answer to the above question l.2:.
a Certain c. Not very sure
b. Fairly certain d. Just a guess
2. Where did you see the object?
f. Flying over
g. Other
.

4 8 52
Day Month Year
-
SECTION B
object? Driecting
ai
6.1 What had you been doing for the 30 minutes
objeot? Try to list the activity or activities, and the
approximate amount of time spent on each.
+
samea6
-
(Circle One): a, North e. South
b. Northeast f. Southwest
e. East g. West
d. Southeast h. Northwest
-
7.3 Did you stop at any time while yc - object?
(Circle One): Yes or No

Building, Sacra California The ebject appeared approximately
milee remente, meving tewards the observer.
The ebserver Mr. et,
Sacramente, Califernia.
The weather efficer officer reports the area as clear with winds at winds at 180° at
10 knets. 10 knets ; at 20,000 fee t 20,000 feet winds were 190° at 24 knets. t winds were 190 at 24 knets.
Meteorelegical activity, physical Meteorelegical activity, physica zidonce sighting, sighting, - cation ation
actien taken and aircraft in the actien taken and aircraft in th negative.
?
Commente of Preparing Officer: Commente
1. Observers 1. Obse1 description scriptien be unidentified unidentified object cov obje ered by this by this
repert indicate a the ebject
Wetbrsok
M JAMES W. WESTBROOK
2d. Lt., USAF
Asst. Dir. of Intel.
Cemment 7.3719-5
— ORVILLE E. BIXEL
Captain USAF
Directer of Intelligence
.Ar Technical Intelligence Center
ATIAA-2c, Wright-Patte B, Ohie
B9TV THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, SO U. S. C.-
31 AND 32. AS AMENDED.ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES. EXCEPT BY PERMISSION OF THE DIRECTOR OF
BITELLIGENCE. USAF.
;

(Circle One): a. North e. South
b. Northeast f. Southwest
c. East West
d. Southeast Northwest
8.1 What direction were you facing when the object disappeared?
(Circle One): a. North . South
b. Northeast f. Southwest
c. East B: West
d. Southeast Northwest
8.2 Circle one of th following to indicate how certain are of
questions. (8 and 8.1).
@. Certain c. Not very sure
b. Fairly certain d. Just a guess
-
ircle One):
Yes or (NO
10.I How was the object seen?
(Circle One): Through window glass 8 Through thecdolite
d. Through telescope h. Other
enified
11. What do you remember about
the object?
11.1 CLOUDS (Circle Cne) 11.3 WEATHER (Cirele One)
@ Clear sky @! Dry
b. I Hazy b. Fog, Mist, or light rain
c. Scattered clouds Moderate or heavy rain
d. Thick or heavy clouds d. Snow
. Don't remember e. Don't remember
11.2 WED (Cirele One) 11.4 TEMPERATURE (Circle One)
a. No wind a Cold
6. Slight breeze b. Cool
c. Strong wind o. Warm
d. Don't remember d. Hot
e. Don't remember

Page 4
SECTION C
object? 28 .
Hours Minutes Seconds
12.1 Circle one of the follcwing to you are of
your answer to Question 12:
@ Certain 0. Not very sure
b. Fairly sure d. Just a guess
13. Did the object look: (Circle One) Solid or Transparent?
14. Did - ne:
14.1 Change direction? No Don't know .
14.2 Change speed? YeB No Don't know
14.3 Change size? Yes No Don't know
14.4 Change color? Yes No Don't know
14.5 Break up into or
explode? Yes No Don't know
14.6 Give off smoke? Yes Don't kncw
14.7 Change brightness? Yes Don't know
14.8 Flicker, throb, or

Page 5
18. Did the object at any time:
18.1 Move behind something? (Cirole One) Yes N Don't know
ved behind.
18.21 Move in front of something? (Circle Ore) Yes oD Don't knew
18.3 Blend with the background? (Cirele One) Yes  Don't kncw
19. Which of the following objects me actual size as as the
object you 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.
19.1 Circle one following to
of your answer to Question 19.
20.2 feet or 0- miles
20.3 How fast was it going? miles per hour.
20.4 Circle one of the following to indicate how certa are
of your answer to the above questicns:
a Certain c. Not very sure
Fairly certain d. Just a guess
2l. Hcw did the object disappear
(Circle One): Suddenly Other
Gradually d. Don't remember

Page 6
SECTION D
22. In the following sketch, imagine eyour eye at the point shown. Place an
"A" on the curved line to show how high the objeot was above the horizon
when you first saw it. Place a "B" to show where it was when when you
last saw it.
Overhead
50 Horizon
Your eye
23. In the following sketch place an "A" at the position the object was
when you first saw it, and a "B at its position when you last saw it.
0
Overhead
F

did you s
27. In your opinion what do you think the object was and what might have
caused it? AF wiathe
. ted 2.believe
28. Give the e follawing information about yourself:
NAME Last Name Middle Name
ADDRESS Street Zone State
TELEPHON
What job? Contiol tower eato
Age
Sex
Last School Attended _ ni

doun. Defint s.lven brilliane
sbserved b naked
ove Lake Cou cl. Th
a drectin
relative spiid. Ans wa
2
Fat. .0 lidnid fram theis
. 1 we had CTed ConTii

AUG 1 5 1952
S/Sgt Lee Collins.
Mather AFB
California
Dear Sgt Collina:
.
Your recent report of unidentified d aerial phenomena has beed
raceived by the Ar Technical Intelligence Center. Inclosed is a
questionnaire, which, when completed by you and returned d in the
inelosed, self-addressed envelope, will aid in standardizing the
data and will pro record of the o ICe.
Your intere the matter
deaire to be c eatly apprec Id.
Sincerely

.
. . 3
TENTATIVE
SECTION A
1. When did you see the objeot:
AUGUSX 1952
Day Month Year
1.2 Time of day: 20. (Circle One)
1.3 Time Zone: (Cirele One):
&. Eastern d.C Pacific
b. Central Other PACitic STANORED
c. Mountain
(Circle One ): Daylight Saving
Standard
1.4 following to indicate how cer l are
of your answer to the above question 1.2:
Certain C Not very sure
Fairly certain d. Just a guess
2. Where did you see the object?
Postal Address City or Town State Country
3. . I
(Circle One): a. Inside a building d. In an airplane
b. In a car At sea M.LTaRY AIR TR
c. Outdoors Other CONTRE OWEI
3.1 Were you:
(Circle One): I -. 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
g. Other M.ltaey AES
5. .

MAKING
LI
5. When did you report to some o:
5 AUGUST 1952
Day Month Year
SECTION B
T
6. What were you doing at the t: object? WORKING
INA NTeOL NWEK
6.1 What had you been doing for the 30 minutes before you saw the
object? Try to list the activity or activities, and the
approximate amount of time spent on each.
SAnE A ABOVE
=
b. Northeast f.
c. East g. West
d. Southeast h. A Northwest
7.3 Did you stop at ary time while you object?
(Circle One): Yes

(Circle One): a. North e. South
b. Northeast f. Southwest
. East g. West
d. Southeast Northwest
8.1
(Circle One): a. North 6. South
b. Northeast L. Southwest
e. East B West
d. Southeast h. Northwest
8.2 Circle one of th following to indicate how certair
questions. (8 and 8.l).
Certain c. Not very sure
Fairly certain d. Just a guess
object?
Yes or
10. How was the object seen?
(Circle One): Through window glass Through thecdolite
Through windshield sun glasses
Through binoculars Through space
the object?
11.1 CLOUDS (Cirele Cne) 11.3 WEATHER (Cirele One)
8. Clear sky @ Dry
Hazy b. Fog, Mist, or light rain
C. Soattered clouds c. Moderate or heavy rain
Thick or heavy clouds d. Snow
. Don't remenber e. Don't remember
11.2 WED (Cirele One) 11.4 TEMPERATURE (Circle One)
8. No wind a. Cold
Slight breeze b. Cool
c. Strong wind Warm
d. Don't remember Hot
e Don't remember
.
.

I
. * VsATTiAA
RAB08 MM
WPB024 LYDAOC3 2. Ari0
XYA014 AUG1952 11 42 3:C.7l0
XDB010 1952 AG
ACTION 0.4 46 )
JWPML 008 J.
RR JEDEN JEDWP J
DE, JWPML :5F . T1C
R 040325Z ZNJ 19
FMCG 2STH AD HAMILTON AFB CALIF 4
TU JEDEN/CG ENT AFB COLO SPRINGS COLO / 07:2.
JEDWP/CG WRIGHT PATTERSON AFB DAYTON OHIO - ,
JLPHQ/CG HQ USAF WASH 25 DC
ZEN/CG WADF HAMILTON AFB CALIF
8TH CID 265 F YOBRPT
*-
I ONE UNIDENTIFIED OBJECT LARGE IN SHAPE CNA AND RED IN COLOR. ^
LOOKED LIKE OBJECT WAS HANGING IN AIR PD L INLY
3
.

Page 4
SECTION C
object? 20 -
Hours Minutes Seconds
12.1 Cirole one to
your answer to Question 12:
Certain Not very sure
3 Fairly sure d. Just a guess
13. Did the object look: (Circle One Solid or Transparent?
14. Did
(Circle One for each question) F
- Don't know
14.1 Change direction? e8
14.2 Change speed? es Don't know
14.3 Change size? es Don't know
14.4 Change color? es Don't know
14.5 Break up into parts
explode? Yes Don't know
14.6 Give off smoke? Yes Don't know
14.7 Chango brightness? Yes Don't knew.
14.8
.

Q
+
Page 5
18. Did the object at any time:
18.1 Move behind something? (Circle One) Yes No) Don't know
behind.
18.2 Move in front of something? (Circle Ore) Les Don't kncw
t of.
.
18.3 Blend with the background? (Circle One) Yes No- Don't know
19. Which of the following objects is
object you saw? (Circle One):
Pea f. Automobile
b Baseball g. Small airplane
Basketball h. Large airplane
Bicycle wheel 1. Dirigible
Office desk j. Other
19.1 Circle one of following to
Question 19.
a. Certain sure
.

0
Page 6
SECTION D
22. In the following sketch, imagine your eye at the point shown. Place an
"A" on the curved line to show how high the object was above the horizon
when you first saw it. Place a "B" to show where it was when when you
last saw it. Overhead
+
Horizon
Your eye
23. In the following sketch place an "A" at the position the object was
when you first saw it, and a "B! at its position when you last saw it.
.
Cverhead

SECTION E
26. Was this the firsttime -- that you a an object like this?
(Circle One) No
26.1 - . -
did you se her ones?
27. In your
caused it? nnl
28. Give the following information about yourself:
NAME Last Name First Name
ADDRESS M
Street -City Zone. State
TELEPHONE NUMBER -
USAF
Age23
Sex MAle

(Circle One) ):(Yesor N
(Cirele One): Ces) or No
29.2 Please list their names and addresses:
A/c
MATHER ACB A/2c
CAyKORWIA
NETE, BETH MEN Dury MATHER AEh.
WITH ME AT TIME OBJECT CAUFORAIA
WAS SIGHTED_
30. Please add here any further comments which you believe are i important.
Use additional sheets of the same size paper if necessary.
FUR THER INFORMAT
I HAVE No
WHICH WOWLD Be ANY VALLE.

PROJECT 10073 RECORD CARD
1. DATE 2. LOCATION 12. CONCLUSIONS Y
Bacramonso, Colif. 0 Wes Balloon
iD Probobly Bellson
3. DATE-TIME GROUP 1 4. TYPE OF OBSERVATION Possibly Dalioon
Local. 2400 PDT Ground-Visual 0 Ground-Rodor 0 Wos Aircraht
0 Probably Airerah
CMT. D Ai-Visodl D Air-intercept Rodor D Possilly Aircrah
5. PHOTOS 6. SOURCE Was Astronomical
Yes militcy Probably Astronamical
No Possibly Astronomicol
000 000
7. LENGTH OF OBSERVATION 8. NUMDER OF OBJECTS 9. COURSE Other
Insuificient Data for Evoluation
4 sec. 3 1. Unknown
O. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
Licht orange Round. V 66h question Leunches shytrains?"
fornation. High an fast.
.

impression only since their height
or distance)." The ation and no aero-
dynamic eatures were visible, very fast and
there was no sound or exhaust. The object c the right appeerel
33 years the
is ource of information. undersigned that he
f. time were
as OWS: . 719-13

2.
server.
FOR THE
1 Inel
Statement of sighting CHARLES E. MASSET
from A/lc Modlin. Captain, USAF
Adjutont
(2)

( .
My friend told me to look up into the sky and pointed in a north-
erly direction, the undersigned looked in the direction that the friend
The objects appeered
to be at an extremely high altitude and traveling at a vary high rate
of spaed. Aftar looking in the direction pointed and seeing the above
montioned objects the undereigned was able to get an aporoximate four
(4) second sighting of the objects. As I watched then the object fly-
ing on the right scemed to "pull over" in the direction of the object
on the left, at about the point of collision the objects all three of 1.
them faded out and tal The cbjects were flyin in a "y" for- 1:
1

Three Sets
0 Yos
A/C Observed Object
C)Intoreeption Attompted
No Intercopt Attempted
7. WENE AIRCRAFT SCRAMBLED T Yes
A/C Scramblad
CVisual Contact Made
CIMI Contact Made
ClNo Contact Mado
O. DID OBJEC 0 Yes no
Normal
ClViolent
9.1 00J Blinking
ErStoady
10. LENGTH (UP1-15 Seconds
Cl1-5 Minutes
11 Ovor 10 Mnutes
11. REPORTING ddress
NQ 65 T4 Stat, Recce
II. ASTRONOMICAL DATA
12. WHAT NOTED?
13. DID OBJECT APPEAR TO ARCH DOWNARD? TIYes TINo
T. DID OBJECT HAVE A TAIL? !! Yea JNo
15.DTDC OBJECT APPEAR TO DISINTEGRATE? TlYes CNo
15. TIME OF SIGHTING RELATIVE TO SUNRISE OR SUNSET (DaTA FrOM
CNight
Cl Day
U Sunrise
[iSunset
III. AIRCRAFT DATA
CYes CHO
LiOne Aircraft
ClNore Than One Arcraft
B.WAS ANY SOUND HEARD? 1Yea. SHo
T9. WERE THERE TNDYCATICE Yor 5TNo
O. WAS THE OBJECT VIEMED ALOVE LSO ELEVATION? Yes CINo
TIC Test Form

1.3 Time Zone: (Cirole One):
&. Eastern Pacifia
b. Central
o. Mountain
(Cirole One): a.Daylight Saving
; b. dard
1.4 Circle one of the following to indicate how certain
of your answer to the above question 1.2:
a.Certain Not very sure
b. ain d. Just a guess
g. Other
"
-
. .

d.
(attach overlay)
V. EVALUATION
21. EVALUATION OF 22. DETAILS REPORT:
C Excellent CJ Good
CGood CFair
Fair Poor
[]Poor C Insufficient to Evaluata
Unreliable
JExtremaly Doubtful
CHoax
23. EVALUATION:
CWas Balloon Was Astronomical
CJProbably Balloon Probably ATL nomical
[]Poasibly Balloon LPoasibly Asi..nonical
.
L]Was Aircraft other:
ATIC Teat Form 3

3,000 40,000
4,000 45,000
5,000 5 2 50,000
6,000 55,000
7,000 60,000
8,000 65,000
9,000 70,000
10,000 75,000
12,000 80,000
14,000 85,000
16,000 7 90,000
18,000 95,000
20,000 100,000
5. WAS AN INVERSION LAYER NOTED? ClYes LINo
(If yes, at what altitude? )
WERE ANY THUNDERSTORMS NOTED IN AREA? Yes
(If yes, at what quadrant? )
7. CLOUD COVER:
tenths at tonths at feet. MILES.
feet. tenths at feut.
ATIC Test Form u52)

3
Cq Cq
CTD SE2 LTACPPLI CID SEE LTACPPLI
J
" CHEC
J
SOR0 cOrs .5
!
1
ic-
, 907t0 2 -
-
2411 -. VOLON =
AA
TJ .. A".
.
.
In 1/
2

objeot? Try to list the activity or activities, and the
approximate amount of time spent on each.
SERVIN -
QES=RY TieN Posr 2i00Io 20QnM.
7.2 How fast were you moving? ? -.. miles per hour.
7.3 Did you stop at any time while you were looking a the object? .
(Circle One): Yee or No
.. T

(Circle One): North •. South
b, Northeast f. Southwest
East g. West
Southeast h. Northwest
8.1 What direction wet re yo ou facing when th the objeot disappeared?
(Circle One): North South
b. Northeast :: Southwest
East go West
Southeast h. Northwest
8.2 Circle one of th following to indicate how certain are of
your answer to the above two questions. (8 and 8.1).
&0 Certain 0. Not very sure
Fairly certain d. Just a guess
. Were you wearing e object? (Circle One):
Yes or No
10. How was the object seen? .
(Circle One): a. window glass Through theodolite
b. windshield Through sun glasses
a. binoculars Through open apace
a Don't remember
8. Don't remember
-

.
Page 5
18. Did the object at any time:
18.1 Move behind something? (Cirole One) Yes (No Don't know
. I you answered YEs, then tell wh red behind.
18.2 Move in front of something? (Cirole Ome) Lee B) Don't kncw
. I you anowered YEsS, then tell what it ved in front of.
-
18.3 B Blend with the background? (Circle One)Yes Don't know
19. Which of the following objects S
objeot you saw? (Cirele One):
Pea f. Autcmobile
Baseball g. Small airplane
Basketball h. Large airplane
Bicycle e wheel f. Dirigible
Office desk j. Other
19.1 following to a you are
of your answer to Question 19.
Certain o. Not very sure
of your answer to
Certain d. Not very sure
Fairly certain d. Just a guess
2l. How did the object disappear from view?
(Cirole One): @) Suddenly Other
Gradually d. Don't remember .
..

Minutes Seconds
12.1 Cirole one following to w certain you u are of
your answer to Question 12:
-
Certain d. Not very sure
Fairly sure d. Just a guess
13. Did the otjeot look: (Cirole On Solid or Transparent?
14. Did ob100 me
(Cirole One for each question)
14.1 Change direction? Don't know
14.2 Change speed? Don't know
14.3 Change sise? Don't know
14.4 Change color? Don't know
14.5 Break up into or
explode? Don't know
14.6 Give off smoke? Don't know
E 14.7 Change brightness? Don't know
14.8 Flicker, throb, or
+ .