PROJECT BLUE BOOK

4
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PROJECT 10073 RECORD
1. DATE· TIME GROUP 2. LOCATION
25 April 66 25/0945Z Chicago, Ill.
3. SOURCE 10. CONCLUSION
Civilian Satellite
4. NUMBER OF CBJECTS
One
5. LENGTH OF OBSERVATION 11. BRIEF SUMMARY AND ANALYSIS
Observers noted round very bright white object like a l60
15 Minutes watt bulb. The object traveled south and disappeared to
6TYPE OF OBSERVATION the southwest. Observer was looking westuard from her
Ground Visual porch when noted object.
. COURSE Echo II was to the west of Chicago at the time of the
sighting. At O942Z Echo II was passing over about l00
Southerly degrees long. and 50 degrees lat.
B. PHOTOS
Yes
No
9. PHYSICAL EVIDENCE √
Yes Yos
No
FORM
FTD SEP 63 0-329 (TDE) FTD SEP 63 0-329 (TDE) Previous editions of thle form may be ueed.
•

We wish to thank ng your observation to
the Air Force.
Sincerely,
wm
HECTOR QUINTANILLA, Jr, Major, USAF
Chief, Project Blue. Book
&E 2
=

COMBAT READINESS TRAINING OPERATIONS
928TH TROOP CARRIER GROUP,MEDIUM (RESERVE)
UNITED STATES AIR FORCE
O'harB INT-RNATIONAL AIRPRT
Chicago inois 60660
SUBJECT: U.F.O. 24 APR 66
A. Description or the object:
l. Would you please describe object's shaps ROUND
2. Size as compared to a kncwn objeot held in the hard at abcut arm's
length. (Such as a pea, dims, niokel, baseball, stc.) DIME
a I
E
3.
L. ! Nurber ONE
5. Formation, if more
&
7. Was there a tail, trail or exhaust, inoluding size of same compared
to size of object to size of object NONE
8
8. Was there any sound? If so, please dascribe the s.urnd COULDN'T so, please dascribe the s.und COULDNIT
BE SUFE
9. Other pertinent or unusual features NO

B. Description of course of object.
1. What first called the attention of observer to the object_JUST
HAPPENED TO LOOK OUT WINDOW
30 to 45^° angle -270^° Azimuth
3. Angle or elevation and azimuth of object upon disappearance
Ansle seemed lower at about 225° Azimuth
.
4. I Description of flight path h and maneuvers of object_Straight Course
—
5. How did the object disappear (Fade away or instantaneously)
Went behind a tree
—
6. How long was the object visible?
15 minute s
C. Manner of observation.
1. How was object sighted, ground-visual, air visual, ground eleotronic,
air electronic. (If electronic, specify type of radar)Ground-visual
-
D. Heading
E. Speed
F. Home Station
G. Telephone No
2

::
D. Time and date of sighting
1. Time Zulu 0945z Date 25 APR 66
2. Was it, night, day, usk Night
.
E. Location of Observer. Where did you make this sighting from? Give exast
location. (If necessary give location in reference to a knowm land mark)
Atfirst from bedroom window then from porch - Also witnessed by H Husband, age 52 and
two Sons a ages 19 & 22. C :1
Approximately 87°h21 W - 41°17' N :'
F. Identifying Information on Observer
1. Civilian Name_Mrs
Age 42
3. Mailing Address Chicago, I11., 60629 —
Occupation Housewife
in Reliability No Opinion *
Telephone No .
Military:
2 2
1. Name N/A C
2. Grade
3. Organization •
Duty Duty
ino Reliability Reliability
Telephone No. Telephone No.
G. Weather and Winds - Aloft conditions at time and place of sightings
1. Observer's account of weather conditions Very Clear
2. 2. Winds (from Weather Bureau) Weather Offioe, NAS Glenview, Ill. Winds (from Weather Bureau) Weather Office, NAS Glenview, Ill.
Surface Calm Degrees - - Kts Kts
Aloft 6,000 6,.000 310 310 11 "1 20 II
10,000 290 11 I1
14,000 XOX 270 "! 11
20,000 290 I!
30,000 260 "! 11
40,000 x50500K 250 11 120 !!
80,000 Not Available 11
Ceiling Clear
min Visibility 10+ miles
Amount of cloud layer None
6. Thunderstorm in area and quadrant in which lccated None
7. Vertical Temp Gradient SFC Temp 48° at 0900z/85OMB +7°/70OMB -3
500MB -16° 300MB -41° / 2001B -59o. Stability Index.+6. Freezing Level 8500 Ft.
3

H. Did you notice any unusual activity or conditions, meteorological, astrc-
nomical, or otherwise, which might account for the sighting No
Did you take any photographs No
Do you know of any existence of physical evidence of
INITIALS CWS
COM ENT: None.
"at .Solmesn
CLAYTCXW. SALMONSON, Vivilian Cy to:
Aircrdft Dispatcher
Dr.J. Allen Hynek
Dearborn Observatory
Northwestern University
Evanston, Illinois Evanston, Illinois
60201
- -
t
J

U.S. AIR FORCE TECHNICAL INFORMATION
This questionnaire has been prepared so that you can give the U.S. Air Force as much
information as poss concerning the unidentified aerial phenomenon that you have observed.
Please try to answer questions as you possibly can. The information that you give will
be used for research purposes.
that if it is deemed necessary, we may contact for further details.
0sc0
1.When did you see the object? 45
Hour Minutes aitro 0308
2.5 abril 1966 (Circle One):
or P.M.
Dey Month Year
.Time Zone:
Eastern (Circle One): a Daylight Saving
Central Standard
Mountain
d. Pacific
e. Other 2
4. Where were you when you saw the object?
Chicage Chicags Dilinoin Dilinoini
Nearest Postal Address City tor Town State or County
How long was object in sight .How long was object in sight (Totai Duration) (Total Duration) 15
Hours Minutes Seconds
Certain .Not very sure
. Fairly certain b. Fairly certain d.Just a guess
5.1 How was time in sight determined? Be
5.2 Was object in sight continuously? No_
What was the condition of the sky?
DAY NIGHT
o. a Bright
b. Cloudy b.
IF you saw the object during DAYLIGHT, where was the SUN located as you looked at the object?
(Circle One): In front of you d. To your left
b. In back of you e. Overhead √
To your right f. Don't remember
FTD FORM
OCT 62 164 This form supersedes FTD 164, Jul 61, which is obsolete.

Poge 2
8.IF you saw the object at NIGHT, 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
Many c No moonlight - pitch dark
Don't remember d. Don't remember
CLOUDS (Circle One): WEATHER (Circle One):
Clear sky @ Dry
b. Hazy b. Fog, mist, or light rain
c. Scattered clouds c. Moderate or heavy rain
d. Thick heavy clouds Snow
e. Don't remember
10. The object appeared: (Circle One):
. Solid @ As a light
b. Transperent e. Don't remember Don't remember
c. Vapor
If it appeored as a light, was it brighter than the brightest stars? (Circle One): If it appeared as a light, was it brighter than the brightest stars? (Circle One):
Brighter Brighter .About the same c. About the same
b. Dimmer b. Dimmer d. Don't know
11.1 Compare brightness to some common object:
12.The edges of the object were: The edges of the object were:
(Circle One): a. Fuzzy or blurred 0. other just a rovre e. Other rust ar rivid
b. Like a bright star
c. Sharply outlined shape bright Light
d. Don't remember
Did the object: (Circle One for each question)
a. Appear to stand still at any time? Yes Don't know
b. Suddenly speed up and rush away at any time? Yes Don't know
c. Break up into parts or explode? Yes Don't know
d. Give off smoke? Yes Don't know
e. Change brightness? Yes 29009009 Don't know
f. Change shape? Yes Don't know
g. Flash or flicker? Yes Don't know
h. Disappear and reappear? Yes Don't know
1

Did the object move behind something at any time, particularly a cloud?
(Circle One): Yes N Don't Know. IF you answered YES, then tell what
it moved behind:
1.Did the object move in front of something at any time, particularly a cloud?
(Circle One): Yes NO Don't Know. IF you answered YES, then tell what
in front of:
17. Tell in a few words the following things about the object:
b. Color ifellnirisd tinge. b. Color yeilnirisd tinge.
We wish to know the angular size. Hold a match stick at arm's length in line with a known object and note how 18.
much of the object is covered by the head of the match. If you had performed this experiment at the time of the much of the object is covered by the head of the match. If you had performed this experiment at the time of the
sighting, how much of the object would have been covered by the match head?
rratak tead -S
oR object
Draw a picture that will show the shape of the object or objects. Label and include in your sketch any details
of the object thct you saw such as wings, protrusions, etc., and especially exhaust trails or vapor trails.
Place an crrow beside the drawing to show the direction the object was moving.
south -
F
Infansing directy wvest.

IF you answered YES, then what speed would you estimate?.
(Circle One) Yes (NG
IF you answered YES, then how far away would you say it was?
22. Where were you located when you saw the object? Were you (Circle One)
(Circle One):
a. Inside a building b. In the residential section of a city?
b. In a car c. In open countryside?
c. Outdoors d. near miguny
In an cirplane (type) e. Flying over a city? air Port
e. At sea f. Flying over open country?
f. Other_ g. Other ..
24.1 What direction were you moving? (Circle One)
a. North c. East e. South g. West
. Northeast d. Southeast f. Southwest h. Northwest
24.2 How fast were you moving? _miles per hour.
24.3 Did you stop at any time while you were looking at the object?
(Circle One) Yes No
2.Did you observe the object through any of the following?
In order that you can give as clear a picture as possible of what you saw, describe in your own words a common
ct or objects which, when placed up in the sky, would give the same appearance as the object which you saw.
eeeuld
plastic mifisg brwt.

90° 75°
60
45•17
30• B
A
15 SW
S
Draw a picture that will show the motion that the object or objects made. Place an "A at the beginning of th Draw a picture that will show the motion that the object or objects made. Place an "Aat the beginning of th
path, a "B" ot the end of the path, and shiuw sny changes in direction during the course. path, a "B" at the end of the path, and shuw sny changes in direction during the course.
"BY "B
_-A
←midury lipat Light Bxam miduny hifat Light Bim
Draw a picture fhow they were arranged and put an arrow o show the rection that they were travelng. Draw a picture of ho they were arranged, and put an arrow to show the direction that they were traveling.

Page 6
30. Have you ever seen this, or a similar object before. If so give date or dates and location.
No 1
Was anyone else with you at the time you saw the object? (Circle One) Yes No
31.1 IF you answered YES, did they see the object too? (Circle One) Yes No
31.2 Please list their names and addresses: Orll
.my Lusband 52
my Sonv- 22
" '5 my Sen - i9
.Please give the following information cbout yourself:
NAME Middle Name
Last Name First Name
ADDRESS ADDRESS Chicage 29 Dllineis 29 Dilineis
Street Cing City Zone State State
TELEPHONE NUMBER AGE 4/.2 AGE 4.2 sEx-Female sEx-Female
Indicate any additional information about yourself, including any special experience, which might be pertinent. Indicate any additional information about yourself, incl luding any special experience, which might be pertinent.
When and to whom did you report that you had seen the object?
2.5 Cbril 66
Day Month Year

ditiit
and
/

monday
shall thi hest
an