PROJECT BLUE BOOK

FRE Wos Sallaon
Frobubly Ballnon
PAIC-TIA SNOUP A. TFF OF OBSERVATION .7 cssbiv Belloan
10/2200 EST n Aircratt 1ay
1 nd Visuot Ground-Rador Prauobly Aat
11/0300 2 11
! Ar. Visal C Air-latercopt Rda Ponsibly Aurcrele ...
HUTOS 5 SOIRCE . x # Anm.(S/)
Nx observers ProbabiAstmre. !
SOX., Ci Passibiy Asnon
? CECTS ..
D lasofficioot
4 hours 1 . C1 1'nn-1w
111. COAMTN",
Circular lights 1. lossibility of "Moby Dick" upyer
observed by wax observers at Iresque Isle AFB. atmosphere balloons caused the
Chervers made observation by theodolite. sighting.
:
2. 'Sighte 2
time.
3. Danidd- That oljist
a planet m miformaTine fom
.
1

TO: Commanding Offieer
47llth Air Defenae Wing
ArTN: iireetor of Intolligence
Prosque Isle Air Force Base
Presque Isle, Maine
l. Roference is made to your message reular
orange objeot r green lights nesrby. .
2. It is requssted the inclosed
Limeatone AFD, and returned
to this Center in tho inclosed, self-addrossed envelope as
poesiblo.
3. comended for the ex-
collent forethonght in obtaining theodolite neasurene This io the
first tine much triangulation has been ffeotad.
A

PHRDECS BUCLDING Yes NO
LAIVERSITY OP MINNESTA REFERS TO MESSAGE: X
CEANZAPDLIS, MINNESOCA IDENTIFICATION CLASSIFICATION
INFO:
t
FROD AIN
.
Unldantified flying objoet was sighted and trackod by theodolite in vicinity of
M-IIAAA
I 1 , of their upper - research
In roply cit Buobook.
ATIAA_
ATIA
ArI
SECURITY CLASSIFICATION PAGE PAGES
UNCLASSIFIED
DRAFTER'S NAME (and signatuRe, whEN requsired) RELEASING OFFICER'S SIGNATURE
Ls A. O.. Flues/jon
SYMBOL TELEPHONE OFFICIAL TITLE 3. KEMEDI, BADOR, CSAS
AA1M5 65369 7 "A
DDA  0173 18-58O23-2  U. S. GOVERNNENT PRINTING OFFICE : 1950- 0-875946
I APR 19K6, WHICH MAY BE USED.
:

ONCLAS
.
FROM: (Originator) DATE-TIME GROUP STRICTERD
101/4302 20/ 52
PRECEDENCE ACTION INFORMATION
CLATIG FOR: ROUTINN
MAL, ET AB, COLORIDO BOOK MESSAGE ORIGINAL MESSAGE
MULTIPLE ADDRESS CRYPTOPRECAUTION
YES NO
REFERS TO MESSAGE:
IDENTIFICATION CLASSIFICATION
INFO:
AA -
SIIAAA
Unldantifiod flying objeot was sightod and trackad by thsodollts in viotnity of
Wave al
of Haval Hesearch esota. esota.
In reply site Proja lugtook.
COORDENAPIOND
ATLAA_
ATIA
DECLASSIFIED AFTE
DOD DIR
B
5 PAGE
UNCLASSIFIED
DRAFTER's NAME (and signature, when reyuired) RELEASING OFFICER'S SIGNATURE
Lt A. O. Vluea/jos
TELEPHONE OFFICIAL TITLE
SYMBO A2IAS 65365 AIR ANJGTANT GRHERAL
REPLACES NME FORM 17D, I MAY 4 10-SSUCJ-3  U. 5. GOVERNNENT PRINTING OFFICE
DD  9 173 WHICH MAY DE USED.

DE JEPSN 57
R 071346Z ZNJ
TO CG ATIC WRIGHT TTERSON AFB OHIC -
AFOIN-ATIAA-11-1-E DTD 4 NOV 52. A NEW INTELLIGENCE OFF NAS BEEN ASGD
THIS WG SIN 2 AND THE ONLY RECORDS AVAILABLE ON THE INCIDENT
DOWNGRADED AT 3 TEAR
4 DECLASSIFIED AFMER 1S LEANS.
DOD DIR 5200.10 -

AND
spead of the objee upha nult g 26 mph by
19.5 hrs:
19.5
The diserapancy The ime-

PP JEPHQ JEDWP JEDEN 333
DE JEPSN 44
P 131535Z ZNJ P Y31535z ZNJ
FM CO 471ITH DEF WG PRESQUE ISLE AFB ME FM CO A71ITH DEF WG PRESQUE ISLE AFB ME T
TO JEPHQ/DIRECTOR OF INT HQ USAF WASHINGTON D C TO JEPHQ/DIRECTOR OF INT HQ USAF WASHINGTON D C
JEDWP/AIR TECHNICAL INTELLINGENT CENTER WRIGHT-P JEDWP/AIR TECHNICAL INTELLINGENT CENTER WRIGHT-P AFB OHIQ OHIQ 9
JEDEN/CG ENT AFB COLORADO SPRINGS COLORADO JEDEN/CG ENT AFB COLORADO SPRINGS COLORADO . .
DO-INT 832J PD /ATTN CLN ATIAA-2C AT WRIGHT -
PATTERSON AFB/ FLYOBRPT PD A CIRCULAR ORANGE OBJECT EITH FOUR GREEN
LIGHTS NEARBY WAS REPORTED TO HAVE BEEN SEEN 11/030OZ OXT 52 UNTIL
11/070OZ OCT 52 BY OBSERVERS AT WEATHER STATION CMA PIAFB THEODOLITE
SIGHTINGS WERE MADE AT ONE MINUTE PERIODS FOR FIVE MINUTES PD AT 11/0550Z
AS FOLLOWS CLN EL 59 DEGREES CMA AZ 156.2 CMA EL 59.2 AZ 156.5 CMA
OBJECT AT IL 58 DEGREES AZ 169.5 PD WEATHER CLEAR CMA WINDS AT 9000 (
FT CMA DIRECTION 320 VELOCITY 16 .
TINUES PD END DOWNGRADED AT 3 .
1. DECLASSIFHED $\Fra}
13/1632Z OCT JEPSN MUBY 5200.10 cy
UNCLASGIFIED

(attach overlay)
V. EVALUATION
SOURCE:
Excellent ood
Good Fair
Fair Poor
Poor Insuff
Unreliable
Extremely Doubtful
Hoax
23.
CWas Balloon Waa Astronomical
Probably Balloon 000 Astronomical
Possibly Balloon Possibly Astroncmical
-
ATIC Tost Form 33 (13 Aug 52)

7,000 60,000
8,000 65,000
9,000 16 L! 32 70,000
10,000 75,000
12,000 80,000
14,000 . 85,000
(If yes, at what quadrant?
7. 8. VISIBILITY WAS
tenths at feet. tenths at feet. -MILES.
tenths at feat. tenths at feet.
9.
.
ATIC Tost Forn 333 3 Aug 52)

were made from Presque Isle AfB and Limestone AFB, Maine.
The readings are as follows: . -
Presque Isle AFB
Time Elevation Azinuth
11/0550z 11/05502 59.00 59.00 156.2
11/05512 11/05512 59.2° 156.5 156.5
11/05522 11/0552z 59.2° 157.0 DOVNCLADSEDA
11/05537 11/0553z 59.20 59.2° 157.7 157.7
11/05542 59.30 158.1
Limestone AFB
11/05382 58.00 169.5
Discussion
Since the times of the reading are not coincident, one azimuth angle will
have to be extrapulated to make the times coincident. The bearing at Presque
Isle changed l.9° in 5 minutes or 0.38°/min. Assuming the light or object was
moving at a constant velocity and course, the azimuth angle can be moved back
time-wise from 055uz to 0538z or 12 minutes, 12 x 0.38° - 4.56°, so at 0538z
B the azimuth from Presque Isle would be 15l.64°. Using this and azimuth of 169.5°
from Limestone, th lirectly u under the object can be plotted. The
. ONCL TED

tude the elevation at 0538z would 58.3°. The altitude would then be:
h = d tan 58.3°
= d tan 1.619
=36 (1.619)
h = 58 miles = 306,240'
is the radius of the earth in miles. This term can be neglected.
The angular velocity from Presque Isle W ar or
0.3985 radiua/hour.
. S = slant range S = slant range
V = SW V=SW W = angular velocity n radius radius
V = velocity
S" odt 03.525 65 miles 7.6
V = S (0.3985)=
V =27.2 mph
elevation south of the base. The readings from Limestona can also be considered
accurate since the light they observed was in the sane general area.
The speod or tha object, 27 mph, indicates it could be a balloon, but no bal-
loon flys at +300, oo0'. A 66 2/3% error would be needed in the the ead-
balloons.
DOWNGRADED AT 3 TTAT
DECLASSIVE AFT DOD DIR 5200.1G
UNCLASSIFIED

FOR:
TO: BOOK MESSAGE ORIGINAL MESSAGE
HAZIB
MULTIPLE ADDRESS CRYPTOPRECAUTION
0 YES NO
REFERS TO MESSAGE:
IDENT B323 CLASSI
INFO:
PROM FOR DLK LCS
-
58, Lt A. d. Ilues of the Air Technioal Latalligence Contar will arrive you -
on 9 too 52 to investigate. Mlanned inveatigation iill indluls an attempt to on 9 too 52 to investigate. Mlaned invoatigation iill indlads an attempt to .
slalate this sighting using known aa tronomisel bodies and vill reguine dooperation -
L - tond
m
-
In roply Blue Book.
.
.
DOWNKCRADED
DECLASSNSK 3;
DOD D.
CCORDINATION:
ATLA _
ATIA 2.3219
SNOURITY INFORAPION UNCL PAGE OF PAGES
DRAFTER'S NAME (and eigmalure, tohen reyuired) RELEASING OFFICER'S SIGNATURE
CAPT E.J. RUPPELZ/rn
BOER 20
SYMBA.LA TEL OFFICIAL TITLE
.
REPLACES NME FORM 173, I MAY 49. 39-6593-3
DD 173 WHICH MAY BE USED.
:

DOWNGRADED AT TIYATS:
S DECLASSN.... ThARs.
DOD DIR ACUG1G
ONCLASSIFIED

bearing, and both groups of observers sent the recorded data to
ATIC.
. Here was the kind of situation the investigators had been hoping
for: simultaneous observations of a single object, made from two
different stations a known distance apart. Calculations based on the
*

T
NORTH EAST
PRESQUE EAST
ISLE
of the theodolite had produced an error in the data. To measure
the angle of an object t above the horizon, the observer has only to
make sure that the theodolite is level, but to measure the bearing
he must align it with true north, a direction that cannot be deter-
mined by guesswork. The Limestone observers had made a mistake
in determining true north and had thus obtained a wrong bearing
for the unknown. When the corrected data were plotted (shown
schematically in Figure 12b) the prolonged lines were parallel, and .
- both pointed squarely to the planet Jupiter at infinity.

Figure 12. The Presque Isle sighting fron two stations. Top, the erroneous
determination of North at Limestone seens toi indicate a nearby UFO.
Bottom, corrected direction of North i indicates Jupiter at infinity.
the prolonged lines intersected, indicating a group of unknowns
hovering some 100 miles above the earth, more than 50 miles off
the Maine coast, of tremendous size and moving at high speed.
Concluding that the objects must have cone from outer space, or
were possibly new type e of orbiting vehicle of Russian origin, the
Air Force had promptly clamped down the security lid. When
ATIC's science consultant, Dr. J. Allen Hynek, looked at the data,
he just as promptly disagreed with these ideas and clearly identi-
extended its investigation to the original observers at Presque Isle.
The witnesses there were bewildered by the inquiry; they had
checked the object n it appeared again on the night t of Octo.
11, they said, and had then identified it as the planet Jupiter, but .
they had not thought it necessary to notify the Air Force!

Thi! the ubjet fieed af at 3
Thololite astios
tle and
Da. Hyneki's is an fulloss: The deffene
bilwin 71s the (
is ditlle i w21h
Thne
coth buclos
:

.
PROJECT 10073 WORKSHEET
I. GENERAL
1. CATION 3. TIME
Local: 2.2 00E
100t 52 Muane lode At Zebras V3U1)
T. WAS OBJECT OBSERVED FRCOM GROUND? Y0s I No
Nakod Eye
I Binoculars
Tolescope
FTheodolito
5.WAS RADAR? O Yos
CIBy One Sot
CBy Two Sets
CBy Thras Set3
WAS Yos
N/C Observed Object
C)Interception Attempted
No Intercept Attompted
PT 0 Yes +Ho
A/C Scrambled
C Vioual Contact Made
CAI Contact Hade
No Contact Mado
8. ANY TILE? Yes Ho
CNormal
ClViolent
9. IFO IT UI Blinking
EStondy
10 Li1-15 Seconds
15 Minutos
[CtOvor 10 Mmutes has.
D. Number and lailing Address
C.O. H742 Mif 4 nia
II. ASTRONOMICAL DATA
J.2. TED?
no
13. DID OBJECT APPEAR TO ARCH DOWNNARD? LIYes HNo
14. DID OBJECT HAVE A TAIL? !!Yes }No
1. DID OBJECT APPEAR TO DISINTEGRATE? TiYes DNO
16. TIME OF SIGHTING RELATIVE TU SUNRISE SUNSET (nata From Air mana
Night
Day
CSunriso
[lSunset
III. AIRCRAFT DATA
JYes
!One Aircraft
(ltore Than One Aircraft
JE. WAS ANY SOUND HEARD? 1Yes
19. WERE THERE INDYCATICNS OF RIGH EACKGE NOISE" Yes No
2O. WAS THE OBJECT VIETED ABOVE L5O ELE Tes INo

.
- .
go 22W 45' 30'
15' To Mont Joli 23°W 68° H 45'
Rivterd
Lac St Jean
Lac à la Loytra
Lacdes
Aigles I
-
AMBER ROUTE
South
OSqatteck 1 Branch
Couse
1 Redawick
R
50 1
50
L. du Payn de Suere 198
I Branch
Lake
Touladi 45'
1500
Lae
Ferry 32 2
Cabano
St Louis du Ha Ha Si Louis du Ha Ha couctao 40 40
0 0 OEEEEC
- St Juste do Lac
- Notry Dame du Lac Notry Dame du Lac Notre Dame du Lac Sta
-
Ste Rose du Degele Ste Rose du Degel C
- 7
OSt Eusabe OSt Eusdbe
TEMIS TEM
Lac Lac Meruimticook 1619
sC Jacques Quisibis Mt
Long
Boisvert 1596
Les Etroits Edmundston R
Lac Bidys 500
Baker
1430
20 Lac Baker Madawaska. 20
Baker Church c Riviare Verte
Brock St
Hilalre Grand Isle
Caron Brook EOMULNOSTON Qusrry Fleming Siding Crand
1000. 509 23
.1746 rencimik S WT
Church Bridg Furt 1388 Upper Lille
Seltlement St Francis Clair SKont Frenchuille o Claveland Ste Anne
PR yards -15' Settlement
St Agattra 0 22 Siegas
Connors B&A FORTRENT
Lumber yard D FORT KENT - -.20 Carriveau
R St Joha SIS 15 50 Daigle Mill
o Sinclair Bridge
Bradbury
Srumill LEVESQUE Kjegaun
St Francis Quellette 520- St.Leonard
Solder 1170 Vant Buren VAM BJREN
Waitagrass Pond Guerette 3-340
deHouses KR Nds
:1954 Cros Be fellewr
Waflagrasi Sta heds
Plsisted
AMDER 7
1230
C Grand
Square L
Eagle CADinS Stacktiolm LIMESTONE GRAML FAL
GC Eagle Lake RR sichng 30
RH siding Mudawaska ·940 Alrooit
L 0 Po
Fish hatchery auntland
10 (20 Winter LIMESTONE
21991 1012 New 336-LIX
Le0ing Swaden
NORIHIANO weden LIMESTONS AFB BRUN
581-S 132 330 X5-H92
St Froid A N GRA BYSREN
Red Hunford 1241-h7.8 m
-27W M3N
O col CARBOU RT
623 136 schu
PRESQUENTLA RANGE atgart ontry Bomes Sned
114.7 PO CARIBOU S8
Scetinfed wings carson Goodric
50 Perham 188
Fish River Bridge
ROESOUELTE DA

+
45' 30' 15' To Mont Joli 23°W
68° 45'
20
Ja
Lac a la Loutrk
Lac des
Migles
AMBER ROUTE K
OSastteck - Branch
I Refowick
R
50
I. du Pain de Sucre 1991
Branch
Lake
Touladi
1500
40
OEEEEE OEEEEC
St Juste du Lac S: Juste do Lac NEEU EN
1
Noma Dame da,Lac Sta
Ste Rose du Degel
Restigouche
TEMIS
Jardine Brook
LacMerulmticook Lac Meruimticook Green
St acquas acouas 1619
Quisibis Mt
1596
Edmendston R
Lac Bidgs (500
Baker
1430
Lec Baker Madawaska 20
Bakar Cnurch St Riviare Varte R
Bront Hilaire G
Caron Brook EOMUNDSTON GrandIsie Crand
500 23 Quarry Fleming Siding
renchville Suwmnl
Churct Bridge Fort 1988 Uoper
St Frangis Clalr SKent Frenichville O Ciaveland Sta Anne
PR youds 15' Settlement
St Agatha 8
BGA FORTKENT - 22 Si
mfer pud FORT KENT 708-=.20 OCarriveau
Jshn SI5 S50 Daigte Mill W
a Sinclair Bridge 236
LEVESQUE Kiegan
Quellette 520 SLLeonard
Saldier Van Buren YAX BUREN
Pond Guerette 1170 35-340
WatagrassO hvreh
yds
Wallugeass Sta ad Be jellewr
Plaisted
AMBER 7 HE
1230
70 C
Square L Grand Falls
Eagle Cabins Stucknoim LIMESTONE GRAND FAL
Eaglo Lakn Madawaska AR siding 30
RR siding .940 Airgdht
Fish hatchery L 0 Panver
Jithtand Dlant
20 Wintervit UMESTONE 500
,172Q 1012 New Z 0
Sweden Ortonville
NORILAND weden LIMESTONE, AFB
s01 S 132 330 a
N COA SYSTEN Haze!dean
St Feold A 1214 17.8 Chnerdvale
Hanford
CARIBOU RU scho
PRESQUFTTE RANGE 523LH36 Shed
114.7 Algort if ontry 3omes S
pioh CN RIBOU
Scatrefed bidgs Carson Goodric
1000 Perham
B Bridge P M
Lisla 70 5
PRESQUE ISLE RADIO Aroostaok Jc
388 PQI Tobrque
1290-PORTAGE LAXE
603-- 50
Portage

ASA SFORTRENT
Lumber yar4. FORT XEN 08- =.20 CCahiveau
St Jonn 515-95 Mill
Sinclair Bridge 2230
Bradbwry LEVESQUE
Swamill 520- -
Oyeilatte St Leonar
Soldrer Vare Buren VAN BIREN
Pand Gumrette 1170 a 3hurch SS- 3 $0
WalthgraO R.yas
1954. WallograskSta thads Be etle
Plaisted
AMBER 7 C H C
1230 Salmon R
Square L Grand Fails
Eagle L. Cabins Stocknolm LIMESTONE GRANL FALES
Eagle Lak RR siding 30 720
RR siding Madawaska ·940 Airpoit Ifont
L Panier ZL
*Fish hatchery rig Chtland he Diant
10 1000 30 LUIMESTONE 500
(20 Wintervilt New 0
1981 ,1720 1019 336-27
thbins Sweden Orbrtonvile
NORIHLAND 330 weden LIMESTONE A/8
SUIS 132 745 H294 Hazeldesn
St Froid N SYSKER
Red A 148 17.8 Vimaston Cufherdvate
1
Colp CARIBOU RU schup
423 LH36 Shed
PRESOJETLE RANGE Atrport of ontry Baimes
114.7 PQN CARIBOU
Scatiefa bidas carson Goodnic
1000. Perham 188 Bridge s0
h River L. P M
470 15 Aroostook Ia
Cabins PRESQUE ISLE RADIO
388 PQ Washsim Tobique
129O PONTAGE LANE Rival
60g--50 Cawmill Fort Fairtiald
Carr Pond Portage L6 Portnge sev Maliseet
PORTAGE LAKE CIUN) 45' Parkhurst -Anbr Caldwe
609
PHESQUE ISCE AFB Raiding Perth
Aroostoo H. sheds aphegrs
273 N
Mopleton
A
chlas 1941 PRESQUE SLEE0
RR siding & EashaSta
sheds SheAdan SPRAEVILLE RADIO RecwTre Easton'Caper
Ashland 365/SPR
Easton Kilburn
towe I. H
Monquart
260-K 260 ias Is 319. 314. Ubder Kent Johnuille Johnuifle
N
098 091 Eeachwood Eeachwood
RR siding SquanagL SquanagL
& WT rs Hily is Hils
Masardis 210 Pocehin Pocehing 560 Bath
1-30
ER7 ER? MARS HML Robin hs
nstolcuk Molcuk 435
o Florencavil!e Florencavilte Bristol
COS E Fiarencevilh E Fiarencevilh
Hidgs Bidgs Bridgewater
Aroestook Aroostook Oxbow a
1695 1695
BLUE 17 3LUE 17 Strckne
S
Biag OPee Pee
N $20
1. 309 309a Moatico JOH
Brook NOHN
Grand Lake N
Seboois RED 86
7 J
Umeolgus-Luka R
Lindsay
ST CROLX 1121
Scragsly L
N "75d
1687 Beiletrle
2 C
o HOULTON-RADIO Loaer Woodrtonk Nev
Fates
272 NUL
O 630 Woods
500> HOULTON
Houses Smyrna Mills 493-H55
2 570
Shin Pond .1170
RR raundnouae co Houlton
Oakfeld tiew
Dyer Brook Limerick Ra/ 850M O-bec
SHIN PONO 1510 1250
Bowlia Pond 780-S 50 Hodydon
1245 F .842
Pleasunt Linneus Hodgdon
LUE
ISLA/M FACLS Comers
S.50. ET P
46 Isiend Falls
North Turner Mt 20 Sc-mill Saweui Danton
F01 40 50
Matlqwainkeag L -195
Lhouse
South Turner Mt 805 NorthArity
EANDIN Gotden HA A N
Ridge N
B7 Sharman Sia 4 859
W 45' To Millinocket 30' 15' (Joins Lewiston) 68°H
344 MLT 45' To Pennfield Ridge
230 240 250 2601 270 2001 290] 3001
130T 140 310 320T 330
150 1501 170
150 T60 1701 160 190 2001
VERY HIGH FREQUENCIES (VHF) PRINTED IN BLUE
BLUE TINT INDICATES AIR TRAFFIC CONTROLLED APEAS
For pilot information see reverse side

PAA FORTAENT
FUNT KENZ 70s OCahniveau
51N 959 Dar Mill
Sinciair Bridge 236%
LEVESQUE ERAT
Quelletre 520- St.Leonard
Sotdier
Pand Guerette 1170 VAK BIREN
WangrsO 55-340
8
Natagras Sta heds Be ellew
Plaisted
1230 AMBER 7
Salmon R
Square L Grand Falls
Eagle Lako Eagle L Cobihs Stocknolm LIMESTONE GRAMI FALES
crate RR siding Madawaskd AR siding 30 720
V ·940 Airedi
Possal N
plant -
20 Wintervilte LIMESTONET
,1720 U C010 Now 336 LIX o
Swaden
3UTILAND 330 Weden LIMESTONG AFB OCrtonvitle
S 132 745 EH9
St Froid N COA SYSTEN Hazeldean
Hantord A Cufherdvate 11
Colo CARIBOU ATL
62.3 LH 36 et scho
PRESQUETCE RANGE Abrnert al entry hes Shed
114.7 PONS RIBOU
Scatte n bidgs Carson Goodrica /
Perham 188
Bridge M
Cobina 470 15
PRESQUE ISLE RADIO Aruostook Jc
ODO FORTAGE LAKE 388 PQI
Washbum Tobique
509- 50 Sewm Rivar
Portage fortage Sey Fort Fairfield
POD PORTANE LASE AUN) Parkhurst Maliseet
51 45' Qusrries AndOew Caldwe
Aroostoo PRU IVE ISLE AFB Residing
sheds a0 210 Perth
N
Mapleton
27 8
PRESQUE ISLECF40 A
RR siding &
sheds SherNan SPRAGUEVILLE RADIO AacrTrek
Ashland 365/SPR astonCa
G Easton
2 Kilburn
donquartR
A 319 N Upper Kent Upper Kent Johnville
098 o o
N ER siding RR siding Squanae 2 Beechwood
&WT &WT rs Hill
Masardis 210 660 Bath
30' .
MARS MARS HMLL Rabin
433 133
Florenceville Florencevill Uristol Bristol
008 E Florancevill
Aroostook Bides entA
Oxbow CP CP 500 500
1695 1695
A A BLUE 17
WF VE Stickne
Bid Bida S
2 N OPeel
20
i N Hroo Montical tcnticel JOHN
Grand Lake
Seboois RED AS
Umcoilons Laka
P
5 Lindsay
ot ST CROLX 1121
N
1697 Belle
o HOULTON RADIO paer Woodstpak Newb
272 HUL
630 Woodstc
iSmyrga Mills 0 MOULTON
2440 493-H56
ShnProO 1170
a RR raundhouse Houlton
Dyer Bruok Oakfeld New
SHIN-WOND himerick RA 850 Debec
780--39 1510 1250
Bn Pand Hougdea
1245
Pledsant .H42
ISLANO Linneus CLUE IO Hodgdon
439 S 50, HB Corners
Pa Isiand Enlls
20 o S3smmitl Sawmulll Benton
$0 50
House Matlawainksag I.
195
30s North Auity 163
OGolden HA N Sc
Ridge
Sharman Sla 853
To Millinocket 30' 344 MLT 15' (Joins Lewiston)
68H 45'
250 260X 270 To Pennfield Ridge
J0 2801 290 300
1401 1501 160 310 320 3301
1601 180 170
1901 200
VERY HIGH FREQUENCIES (VHF) PRINTED IN BLUE
BLUE TINT INDICATES AIR TRAFFIC CONTROLLED AREAS
For pilot information see reverse side

2A
i UNCLASSETD
1.06n
- 2dlae
3.
RE339
UPF029 OR NFOR
CEDZ14
JEDEN317
NINM JEDWP 10 M1 9:57
DE JEDEN 139
IM 1421002
COLO COLO
..

-
2 KOKT
2

4
V100%s
-g -20° -10° O"(C) 10°
TTTY
-30" 20" -10' O(F) 10' 20' 30" 40 50'
CX NO. 7A507A TEMPERATURE

8. Were there any radar pick-ups? No FPS3Y5
9. Did all people see the same thing?
10.
11. .
Calibrating theodolites at Presque Isle and Limestone.
a Pick re the
object was seen.
b. Get the exact time by getting a time tick if necessary.
c. Take ten theodolite intervals noting exact time,
elevation and Be sure you find out which body you are shooting.

.
y
.
2 .
.
1220 t
.
y,
.

ROUTING
JOINT MESSAGEFORM
ONCLASSIFIED
SPACE ABOVE FOR COMMUNICATIONS CENTER ONLY DATE-TIME GROUP SECC
FROM: (Originator)
1826002 110V_52
: ACTION INFORMATION
PRECEDENCE INFORMATION
CO ATIO FOR:
TO: BOOK MESSAGE
CRYPTOPRECAUTION
MULTIPLE ADDRESS YES NO
REFERS TO MESSAGE:
IDENTIICATION CLASSIFICATION
INFO:
lighte nearby". Cur analyais of the readings was secomplished by extrapolating one
azlanth angle from freaque Isle to make the tines of reading coineide. By so doing
the cbjeat peens to have bean traveling at a7 mph and flying at an al a ol
*300,000,ex
handed in the guneral dirootion of Naine, corparod to the objoot's dosoription and - .
-
ballson. The altitande disorepanoy mny be a miatako in r dolito
although it would require a large margln of orror.
S
In reply elte Projeol uBooz.
DOWNGRADED A 19:
COORDLIATION
DOD DIR 520016
ATIM-
UNCLAS SECA
PAGES
DRAFTER's NAME (und oignature, whem required) RELEASING OFFICER'S SIGNATURE
I.T R.M. OLSSCM/V
SYMBOS TELEPHONE OFFICIAL TITLE
ATLAAS 65365
DDAY 173 REPLACES WD WHICH AGO MAY FORM DE 11-168. USED. 15 JUN 1345, AND WD AGO FORM 0990, 16-59923-9 * U. S. GOVERNMENT PRINTING OFFICE : 1950- --875946
I APR 1946,

. /
ROUTING MESSAGEFORM COMMUNICATIONS CENTER "NO.
JOINT
UNCLASSFIED /
SPACE AROVE FOR COMMUNICATIONS CENTER ONLY DATE-TIME GROUP SECUA
FROM: (Originator) ThccoL NOV52
CO.ATTO PRECEDENCE FOR: ACTION ROUTrE INFORMATION
TO: OFPICE OF HAVAL RESEANCH PHKSTCS BLO BOOK MESSAGE ORIGINAL MESSAGE
UNIVENSITY OF MEN MINKEAPOLIS MIIN CRYPTOPRECAUTION
MULTIPLE ADDRESS YES NO
REFERS TO MESSAGE:
IDENTIFICATION CLASSIFICATION
INFO:
PROM, 1-/ IVE .
.
.
OITI S-AVILV stations were irvolved and obtalnad a fix o stations were irvolwed azd obtained , fied objeet. . .
Brascue Lale Ar3. Medna Frescue Lale ArB. Hadna .
Times Elevation: 8. Asiuth: DOWN
11/05502 59.00 256.2
21/05512 59.20 150.5 DECLASSIF....
7n
11/05522 59.20 157.0 DOD DAR IT
11/0593 59.20 157.7 .
97
11/05542 59.30 153.1 6200.16
Liaatore Aa. Halm
11/0573z 53.00 169.5
UNCLA
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RR JEDWP
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DE SECQA 7 DE SECQA 7 -
5 -
R 1417572 R 1417572
FN ONR FIELD REPRESENTATIVE UNIV OF MINN MPLS MINN MPLS
TO WRIGHT PAT AFB ON OHIO N OHIO
.NAVY GRNC
'
ATTN PROJECT BLUEBOOK X URMSG AFOIN-ATIAA-11-5-E X OBJECT BELIEVED TO DE
LOST STRATOSPHERIC BALLOON LAUNCHED FROM HERE X OSCODA AFE ABANDONED
TRACKING WITH LAST POSIT 25 MILES WEST OF TORONTO AT 2230Z 9 OCT X
HEADING WAS EASTERLY AT 23 KNOTS ALTITUDE UNKNOUN X REGUEST RAW
THEODCLITE DATA IF SIMULTANEOUS MULTIPLE READINGS WERE MADE OR ANY CTHER
DETAILS TO COURSE CF BALLOCN X ROSS SENDS
14/17577
' wy,
-

II -
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you or dd you notify thon of state Limestone's
ATIAA
ARTA
NEE
SECURITY CLASSIFICATION
UNCLASSIPISD PAGE1 O1 PAGES
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Cape H.d.Euppele/loe..
USA3
SYMBOL ABLAN-S TELEPHONE OFFICIAL TITLE
65505
DD  173 REPLACES NME FORM 173, I MAY 4
WHICH MAY BE USED.