PROJECT BLUE BOOK

1. DATE 2. LOCATION 12. CONCLUSIONS
24 Nov 55 Hokkaido, Japan Was Balloon
000 Probably Balloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION Possibly Balloon
.Local Ground-Visual Ground-Radar Was Aircraft
Probably Aircraft
GMT_ 24/161.3Z AirVisual Air-Intercept Radar Possibly Aircraft
5. PHOTOS SOURCE epx Was Astronomical Moon
Ys Probably Astronomical
x2 No military (F-86 Pilot) D Possibly Astronomical
7. LENGTH OF.OBSERVATION 8. NUMBER OF OBJECTS 9. COURSE Other_
sta 000 Insufficient Data for Evaluation
5 min 1 Unknown
10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
On mission at 25,o00 a red glow of high Refraction of setting moon.
ineasity was sighted (stationary). See Dr Hynek's evaulation
First looked like a/c on fire or after-
burner. First spherical shape, then changed
to oblong, retaining brightness. Glow
disappeared gradually within 5 min.
/
ATIC FORM 329 (REV 26 SEP 52) ATIC FORM 329 (REV 26 SEP 52)
..

ROUTING COMMUNICATIONS CENTER NO.
JOINT MESSAGEFORM
FROM:(Originator) SPACE ABOVE FOR COMMUNICATIONS CENTER ONLY DATE-TIME GROUP
PRECEDENCE ACTION INFORMATION
FOR:
UNCLASSIFIED
TO: DOOK MSSAGE ORIGINAL MESSAGE
CRYPTOPRECAUTION
MULTIPLE ADDRES9 YES NO
REFERS TO MESSAGE:
IDENTIFICATION
INFO:
-
Request clarification.
COORDINATION:
4B4 Hhe miley DARE 12/12/55-
Dr. H. A. Miley
UNCLASSIFIED
T55-21507
PAGE 2 OF PAGES.
DRAFTER'S NAME (and signattere, when regire
Albert W.Wrepperdne 15 51
ALBERT W. DREPPERD, T/SGT, USAP
SYMBOL TELEPHONE OFFICIAK TITLE MAJOR, COENAR JR,
AFOIN-4E4 69216 1 DEC 1955 Adiutent USAF,
DD 0T 9 173 REPLACES NME FORM 173, 1 MAY 49, c0-10-58023- U. &. SOYERNNENT PRINTING OFFICE
WHICH MAY BE USED.
--

HAS REQUESTED CLARIFICATION YOUR MESSAGE WHICH STATES QUOTE AT
THE TIME OF INCIDENT THE MO AS AT 19: SFF
OF THE AIRCRAFT END QUOTE
AFOIN- HOULD NOT THIS AZIMUTH LOCATION READ 291
DEGREES. WOULD LOCATE THE MOON IN SSE
DIRECTION AT TIMEOI EREAS A POSITION OF 291 DEGREES WOULD
ESTABLISH THE CORRECT APPROXIMATE LOCATION IN THE WEST AT SETTING ESTABLISH THE CORRECT A APPROXIMATE LOCATION IN THE WEST AT SETTING
END QUOTE. REQUEST YOUR COMMENT BE ADDRESSED TO AFOIN-4'(ATIC) END QUOTE REQUEST YOUR COMMENT BE ADDRESSED T TIC)
WITH INI WITH INFC AT ADC AND THIS HEADQUARTERS. AT ADC AND THIS HEADQUARTERS.
BT PARAPHRASE FARAPHRASE EPT PRIOR TO DPT PRIOR TO
CATEGORY CATEGOT LLY REMOVE SDFERSOI GOF NSO1
15/2350Z DEC RJEPHQ ALLD ALL IN ATA-TIME GROUP UATHTINE GROUP
PRAAR
SSIFIED SIFIED
UNC UN 52/827-2
2

caliar
at. 52
ae
Dis1) 1220:53
RB002 WPF046 YMA026XYA085 QXC189 QDAD38PQA152ADA51L
PP RJEDEN RJEDWP RJEPHQ
DE ROAPAD 101A $ra}$
( P 190746Z AGTION
( FM COMDR FEAF TOKYO JAPAN 4-4x2a
TO RJEDUP/CONDR ATIC WRIGHT PATTERSON AFB DAYTON OHIO 1ge
C INFO RJEPHQ/COMDR HDQ USAF WASHINGTON DC
C RJEDEN/CONDR ADC ENT AFB COLO
BT BT
UNCL DI-E 51664. ATTH AFOIN-4. ATTN AFOIN 2A1. INTERIM REPLY HDQ USAF UNCL DI-E 51664. ATTN AFOIN-4. ATTN AFOIN 2A1. INTERIM REPLY HDQ USAF
( AFOIN 2A1 MESSAGE CITE 5 AFOIN 2A1 MESSAGE CITE 534 53.SOURCE BEING QUERIED SOURCE BEING QUERIED REPLY
WILL BE PON RECEIPT OF ON RECEIPT OF INFORMATION. INFORMATION. 7 .001 001
- i
BT
19/0750Z FEC RJAPAD RJAPAD
…
,
.
.99 c0 9991333 67

bove been Coee o2e J
(beosing) 3/2 0
78
the geieih
ay that
at toka
3 re woR opfrirf. 23 4 32
aurd it decbial tou afp. t 2°42
Soea? teire
+ 5C.T. 13 26 24

tai 2 sRei t
= cs P tan 5-sie at
ewbere 2 = evieith
C =
= Latetilide
= = decliratiod Lac 7
a he the
Dubotitetos e feid thas
tou 2=1.180
z 2 49 WN.
The - thefre
360- 112 = 310 12
Srivrce the
312°, if rvould affaar thead

e5 deation
Moon 2e at Hophailo thob
212 at 2 A.M.
toeme tisiné weerd
1:37 A.11.
therfne,
Feerd ler sbotau tiation 3
idevth g orjend
22 hardly t
Cex Tre oiutod
2
22i C 22 Uhe X
atiursphere the
ts Furthy
Cone
artrpline
cax the x
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thape thei
The presime

UOTE CLN ON 25.70V 11 (2416132 A PILOT IN AN F-CSD CN A
TACTICAL PCS 43-52N/141-45E
CM SIGH MEAD
,12 DEG: THE A GLO. GLOW
AT : INCH
YACFT ON
TIRE CM CR SHAPE
THEN SPH AL ISTC A UHAPE IGHTNESS.
MINUTCS MERE REOVINE LCP A.ELR A.D
ALDITIONAL TUO MINUTI SPPEAD INTO AK CSLONC SHAPE. EIL
FCUR
UNCLASSIFIED
PAGE TWO RJEPHO 124
OVERCAST LLVE THOU JELVE THOU
ACK. FEAF INFC VAS
LAYEL AS PEOCTSS EATEL AS A ROUTINE
REPORT CM: TC DF PORTS OF
THIS NATURE HAVE BELN IADIO. 1
UNQUCTE INFO
31
X1/1924Z DEC
3r4$
44x2a
mIS
155-20749-1

ddish-orange
horizon and its obstruotion from view by existing cloud layers.
COORDINATION:
UNCLASSIFIED -
424H.h Mley DA 12/5155
Dr. H. A. Miley
T55-20818
PAGE 1 OF I PAGES
alberw.Kre ME RE4
DREPPERD, ALBERT T W,T/Sgt, USAF Mor
SYMBOL TELEPHONE OFFICIAL TITLE 1st Lt. USAF
AFOIN-4E4 69216 8 $EC 1055
DD 0T 9 173 WHICH MAY BE USED. REPLACES NME FORM 173. 1 MAY 49, c9-16-58923-4 U. S. GOVERNMENT PRIHTING OFFICE
L

'CMM FROM COMDR FE
QUOTE CLN THE FOLLOWING FRON 39T CLUDING A P ILOTS
INTERROGATION REPORT IS FORMARDE O CLN
1. EVALUATION OFPILOTCLN1 MILES CMM AC 2228024
CMM 339 FT TTABTF THE DEBRIEFING
OFFICER EVALUATED 1 SOURCF. FORMATICN AS
EVEETTNESSTO
PREVIOUS NUCLEAR EYPLOSIONS FROM THE GOUND DURING MARCH TO JUNE 1954
CMM FRON LAS VAGAS CMM IEVADA CMN APPROY 8O MILES AUAY FURTHER
STATES HE HAS SEEN NUMEROUS TRAINING FILMS AND MOVIES OSIONS.
UNCLASSIFIED
C
PAGE TWO RJEPHQ 10
IT IS HIS OPINION THAT IT WAS AN ATOMIC BURST AND THAT'S ALL IT COULD
HAVEEEEN.
2. LT DURFEY STATED ORIGINALLY THAT HE THOUGHT T IT WAS AT LEAST 200
MTITC ALIAW CLNIATEDMATHEMATTCALCOMPUTATTONC DV UTM DLACED TUTC
ACENT TC An ALTIT TLE THIS HEADING.
IMMEDIATELY AFTEI SMAN' ADIO.RECEIVER BECAME
INOPERATIVE CONTACTED FOR OF THE FLIGHT.
I WENT VERCAST AT ABOUT.6,D0O BROKE OUT AT
12,000 IGAN AT THIS SHIND
NO LAYER - 6,000'-12,000
UNCLA

A LITTLE MORE THAN TWO MINUTES SHORTLY
WAS STARTED CMM TO FLATTEN OUT FROM ITS ORIGINAL
SPHERICAL SHAPE PAREN CLARIFY A STATEMENT MADE IN AN EARLIER
REPORT CMM THIS OBLONC ATTENEDSTAGI
WELL KNOWN MASHROOM VHICH RESULTS I EXPLOSION OF
THIS KIND THE STEM S ONE.CMM F THIS C
MUSHROOM STAGEWAS.. AREN THIS GLOW FLATTENED ON
A HARIZONTAL PLANE. ILLUMINATICN IN THIS STAGE LASTED FOR
APPROX TWO MINUTES. AFTER THIS STAGE THE LIGHT FADED OUT MODERATELY -
UNC (
PAGE FOUR RJEPHQ 103
FAST LESS THAN THIRTY SECONDS. MY LOCATICN WAS WD 8585
CMM WTN 11181. THE TOTAL PERIOD OF OBSERVANCE THUS
WAS ABOUT FIVE MINUTES. TO APPROXIMATE THE SIZE OF THE GLCW CMM A
SPHERE ONE-HALF INC DIAMETER HELD AT A ONE YARD DISTANCE FROM THE
EYE WOULD SHOW IN COHPARISON WHAT SAW FROM THE CCCKPIT. AT 500
MIDDLE OF THE SPHERE THIS CLOSELY RESEMBLED
BLOCKED OUT APPROXIMATEI ONE-FIFTH THE SPHERE AAS UNABLE TO
CONTACT MY WINGMA OF THIS INFOR-
MATION. UNQUOTE. NOT
FEAF COMMENT CLN AT 'THE TIME OF INCIDENT THE MOON WAS AT 191 DEGREES
FROM THE MOON SET 01011 Ow HE
OF THE INCADENT AI SUBSTANTIATE
D THAT THIS WAS AI ATCMIC EXPLOSION. HISTORICALLY CMM THERE IS NO RECORD
OF NUCLEAR EXPLOSIONS IN THIS AREA. UNQUOTE
REQUEST YIN-4 EVALUATION AS SOON POSSIBLE.
BT
07/1832Z DEC RJEPHO
UNCL FIED :
T55-21200-

/
ROUTING 1 COMMUNICATIONS CENTER NO.
JOINT MESSAGEFORM
PARAP n ACD REC 15489
C 6 T1 TT
EE- ERENCE IF TEE DATE-TIIE Gi.
SPAC MMUNICATIONS CENTER ONLY DATE-TIME GROUP
FROM:(Originator)
1212452 Dec 55
38 PRECEDENCE ACTION
CBMDR ATIC FOR: Routine UNCLASSIFIED
TO: BOOK MESSAGE
D/I HQ U
ADDRESS CRYPTOPRECAUTION
YES NO
REFERS TO MESSAGE:
41242 IDENTIFICATION CLASSIFICATION
INFO: 52776 53032
FROM: AFOIN-4E4 FOR: AFOIN-2A1
explosion, it is unlikel that this cause initiated following
reasons;
a. Negative historlcal report from Far East sources maintaining
SEISMOGRNPH
sismo 1gil.
Should
this azimuth location read 291 degrees? A Ition o
ing. position degrees would
establish the correct approx T55-21507
UNCLA FIED PAGE 1 OF ; 2 PAGES