:. ~ ! ~ observ~ra o r ,.,~nbl., li ,flov,. 14y Aorervr~ Circular orqe w1 t.h 4 green light, a . observed bt wx obser-vers at J rersque Isle J,FB. : 1. Jousibility of "W>~y Dicl~" ntmspherc bPl.loona caused the oightin~ I Oamrvera &ad~pbaervation bJ ~heodolite. In r q nrer to SUBJECTa i'LtODRn of 10 Ootooer 1952 Cn!l!!!andJ D! Officer 47ll th J..ir Llecn~e ~ :lllg fT!fa ~i'reotor or Int.oll~ P.ro; quo Isle Air ~orce Bnao Isle, ~1a1r. 1. r-.oterence 1o a4\de to )"0\lr :10S811R8 Int 8J'2J report~ eircular orange obJoot vith taur green li;:!rt_, ne.:.r~J. ;.:. It. la requeat3d t.~Clt t.btt !n\llowd '4~ustJ.Qnnai:-aa bl eo.lpltcd, one by oaob obeersrez-nt &Tollt}Ua Iala Al-'D Old L1.-:aatone J~J, a:).'} ruturn~ t-o tbia Cant. in tho 1.."lolosed, self. u.d.Cro en '!Glop na ooo4 :1:1 3. Your organlaat1oa N1 tha obaez rera are .ror the o;y. oellont toret,n,Jnght 1n obta1n1n~ theoc ollta !lea~:ltt\. 1h13 iJ t hB tiret Un PUch trim\~lat!oD haa bea e.f!"()Ot.l .. ------Aea.UONI'O.COIIIIf1NICAftOIMCUf'DONI.1'r===-==------~s==~::::::----1 filM: (Orlltat) DAft. TIM I UQIIt II CUNTY a AISIPDTIOII IIIWTFirl Mill Cn' lf,.IIVf, .... , ... ~ lOOK IIDI1Jit 0 Glllllft."-IIIIIWI CII;.4MUMICA fiOM CEMJUt ItO. UNCLASSIFIED ... Ac:. Aovai'Oit coMM[rrrrcAnorrs urrratt orrY ,.-----------... .., FIOM: COrl.fMar.r) DATI-TIME GltOUI' ; : l rt~pq c; :raltrt~r..~'ht D IOOit MESSACJI REtERS TO ML'i>.OAGE IOPTifiCATIOII CLASSW'ICATIOIII 01 1 PAGES 1:\.kASING OffiCER' S SI~NATC"E II4.I'UICa IIMt: f'OR14 Ill. I MAY t" WMICM MAY F.~- c:S J E PSh 37 J LC\1 52 IS Bl.li';G fUDD TO YOUJ1 Ol!Cf. THI~ Dt;n . Tl:IS ll.Gll>~i~r .~PTD I~ 10 Oowber 1952 Presque Isle Tb~dolit~ Upper air research bal.l.oon roleaactd lliM~a;,>Qlis JJinnesota, on 9 Oct- wu loet 25 ndlea west ot Toronto btlt was traveling in an ea!Jtllrly dlreo\loa at 25 apb. 22~Z 9 Oct -25 miles west or Toronto z 10 Oot,-tirt ais~t.ed at Presque Isle It the balloon a.~ the objoct are one in the same, it took the balloon 19.5 hr to cover the 600 air mila~ rraa Toronto to Presque l3le. A c!l~e)( on t..'lia o~ be made slnoe the wind opeod at. Toronto 'W31 25 m;-h and taking th!t speed ot t.ht1t object a\ Prasque Isle which was ~ zr.ph~W.t.ipl_ylnJ 26 Yr. ph b7 ~or tM diat..ncs co.,ored ot 5Cr1 Idles. ':he d1aONP&"'V of the 93 mUes neoes,ar;r to p~t the balloon :ln thtt iJ::u~ d.iate rlciDit7 of Pre~ue Iale and Limestorw cO\lld bs due w altitud fluctua- \ieaa 1D tbe ballooD' flight. It ia quite poa3ible that the averac~e speed 'n3 ot higher eped A\ 31 mph, tor o le, the dtstanca coverec:lWO&&l.d be 6o4.5 ailea JEPSM 1121 PP JEPHQ JEDIP JEDEll 333 Jl! CO .711TH DEJ' VC: PRESQUE ISLE ArB ME TO JEPHQIDIUCTOI or lilT HQ USAF VAS .. RCIIII1CAJ lliiii.I.IIIGENT .CENIEI VllCHTPATTEISOM AJB OHIO _ .... ---....,.~ JEDEIICC ENr All COLORADO SPIIMC:S COLORADO JEDENICO AlSS IMT ArB COLORADO IHT 132J PD /AITN CLH ATIAA-2C AT VRICHT - PATTERSCM AFBI n.YOBIPr PD A CIRCULAR ORANc:E OBJECT EITH FOUR GREEN LIGHIS NEAIIT VAS D TO HAVE BEEN SEEM 11/13112 OIT '2/UNTIL 11/ITNZ OCT 'I BY OBSDVEIS AT VEATHEI STAtiOit atA PIAFB THEODOLITE SICHTINGS VEil MADE AT ONE MINUtE PERIODS fOR FIVE MINUTES PD AT 11/~''IZ AS fOLLOWS CLN EL '' DECiiEES QIA A% '''2 CltA EL ,9.2 A% '''' CMA LIMESTONE Afl CMA MAINE WEATHER STATION AT 11/~38% OCT '2 REPORTED OBJECT AT IL '8 DECREES AZ 169., PD WEATHER CLEAR CMA WINDS AT 9111 FT CMA DIRECTION 321 CIIA VELOCITY 16 KNOtS PD INVI=STIC:ATION CON 'C INUES PD ED 1J/1S32Z ocr JEFS IV JAIJDQI DA!A 13'6toell' Y IYAtU1tiOI D Inautt1c1ent to aluat. Cl Wu Astronomical 0 Probabl.7 Attt~w~nold.cal 0 Poeaibly At~ t r ono111cal t:J Inatft.cleo\ Data ror E'faluat.ion PROJEC'l' 1007) WEATI-:t;R DATA SHI. RLOCm DIRECTION . ALT11'UD~ WLOCI1'I DIREC'l'IOH AS Alf DVERSIOII (It at what altitude? ~--WEIm ANX HO~ IN AUA? (It at what nt'l 8. VISIBILITY \VAS --tenths at teet. tenths lit ---teet. 10 October 1952 Presque Isle ~nl, :.nino Observers at Presque Isle AF.B observed a circular or3ng~ object with rour green lights nearb7. The objnct was observed trar. 2~00 EST lo Oct 52 until o~o EST on 11 Oct, 52 a period or five hours. The objoot. or lights wer e obsor,:ed by observer s at the weath~r s&at i on or Pl'es e I~lo AtB :~aine. Theodolite readinga were made rrom Presque Isle Ait"B and. I.ime3tone AF'B, ~.iain11. The readi ngs n re as follows: Presoue Isle AFB FJ.evntion Discussion Sinc:fl the times ot the reading are not ooincldont, rme a ziruut)'\ angl o will h:lve to be extrapulat.od to make the tioes coincident. The bearing a t Pr o.;quo Isle changed 1.9 in 5 min~te:s or 0.38,/min. Aa:n cning t h e li~ht or obj oct:, \ 'la3 movin~ at a eonst3nt velocity and course, the azil:luth augl c can be moved luck t~le-wise from 055uz t o 053SZ or 12 ~inu s, 12 x o.~go 4.~6, ~o nt 053SZ t,ho czimuth troa Pr9sque Isle would b8 151.64. Using thin :md azimu~h of 1G9. 5 trom 1,1mcstone, the earth point diree ...... unde~ the object c an be plott~d. 'l'h~ distance (d) troc Presquo Isle is 36 st.ntute r.tile3. 'lbe elevation from Presquo Ittle chaneed Oe3 in 5 win\.\ t~s or o.o6/:r~n. In 12 Jtinutas, the chnnae would be 0.72. Again assu..":ling constant cournc and alti- tu~e the alevation at 0538Z \YOuld be 5g.3o The altitude wo~l1 then be: h cl tan 5Se3 This n~glecta the curvatuN or t.he o:J.rth. This cor.-.oct!on 19 d' /21." :here !l 1~ the radius or the oart.h in rrllas. 'lhis t$m c an be n~elcct+!d. Dao angular velocity !rom Presque Isle was 1.90/5 !!lin or 2"~.& o. 5 radiusfbo-..u-. V Z/.2 mph ':T angular V.Jll')cit;.' in radius V veloci~y Ono ~:>::J!Ji~le solution is that tho th~od~lite .roadin~s arf3 not accur.:1to. Since Presqua Isl~ Jr.3da fivo readi::13s and. 3.11 TToro consist-ant, it can safo.l;( b9 as~w:1ed that thoy 3.t':.J nccurs.t3 hcweYt~r, indicate tho ll~ht, -.ras :1-t a hiz;h angl~ of el~nr:-1tion sout.h ()f the base. Tbe rea11ng~ f."ror'! Limestone can also bo con~id.~::.--~d accurate sinov 1#he li~ht. t-hey obsnrved 'vas in the sru:1o fEm~ral. p.re~. Tho ~peod ot tr . .o objec t. Z7 rnph, indicates it could b9 a b:1lloun, but no bal- loon flys at +'0') 000'. A 6u ?/3 orro1 -..-nuld l' a nced:d in tho theo'lolit;e r d- ines to eet do\m to loo,oca, t tor balloons. ' COMM\IItiCATIOfiS C~ftft NO. JOINT MESSAGEFORM ~ 0 IOOIC MIMAOI CllVPfOPM.CAUTIOII 0 MUl.Tif'LI ADDMJI REFERS TO MESSAG: ot "/~ orn.., theodnl1te oj*raw :1.1# 'JO'JI' l.~,., btAll1 tbMdolite o,.ratora :1\ l.l,r.a.t8t*X"t J~"fJ, -tll -c.::tJ O.>l''lii)tta of 0. !:UV1zAto ... IICf tt 173 IIUl.ACIS .... I'OMI IlL I IIAY .._ WIIICH MAY UUD. PA'll PAGES The speed and altitude elimiMt,as t.ho possibility of airci':trt. The elevation, ~, elininnt9s tha po~3i bili ty of ~ r.dr.3f'O or a~ phono:nttr"~:l b3aod on tho renection or rofraction of l'Lght. fron1 an inversion l~er. One possibility is t,ha.t tho obj'l~t. wa' a stRr or plnn3t. 'rhe nztrmt.h Hr.::l~s from the t.wo st,3t1or~.t should navu be9n mor~ n_,ar~ th!3 snr.te it tttis in t!"uo, but a calibration error could cause th'3 difforonce . .i'h,, ktJy io probc1bly th13 anr,ular l::)nolusions ttl3t o 8.S tronl:!'.iC~.l bodies One hK:idmt that partk:ularly engagt"C.l the attention of the panel, and ~ould proba'?ly h:wv "<'CCO11C a famou~ classic. except that Air Pau~e bweltiptors hac! l,. . It a strict setft.'t, was the sigl1tlng at hie Air Force Due In northt-m ~Iaine. On October 10, lgsA, at about to P.t.(. E.S.T., a group of w~ather ohkrvers had noticed a brtght-orange objtoct ho\crfng low on the easteau horizon and had let up a theodolite to mmsurc lb altitude and bearing. As the glow- InK unknown slowly rose higher Rbovc the horizon and ~ee~ncd to cl01e1, It appeared tlarou~h the t~lesca11e of the theodolite u a drw1ar dtslc acx:ownponi('(l by four ftickerlng grC'f!n lights, two on ch llde. Alarmed by this spcctucular phenomenon, the observers ea11ed the Air Force Base at Umcstone, 10me twc.nty miles north and east. to ask wht-thcr the objt"Ct Wl\S \'isJble there. It was. Setting up a theodolite, the I .ime~tone oh!M!rv<-n mensurc.~ the beigl1t and aod both groups of oiMK'I'\en sent the recorded data ta Hete was the Jdn<1 of situation the inve!l'til(ators had 1K."e~a hoping b: sfmultnnrous observations of a single objt.ect, made from two 1tatiol1s a known dtstanct apart. Calculutious based on the FINAL GALLEY PROOF CaJiey 55-TilE \VORLD OF FLYING S., UCERS altlhtdt"S and \'K'aring~ rt'(lOrtr<lll) tlt<" two stations rir1c1cd fanta!ltiC In a plot of the data (shown ~C'ht'tllatica11) in Figun 12a) [lltRONEOUS [lltltONfOUS P~11re J 11M" PreJqne blc sighting from two stations. Top, the erroneous dctcunlnation of North ut l.inK'itOnf' acerus tu indicate 11 nearby UFO. Bottom, corrected direction o( North indic;~tcll Jupiter nt infinity. the prolonged lines intersected, lmlicntiug a group of unknowns some 100 milcs above the ca.-th, mon than so miles off the Maine coast, of tremendous size~ and moving at high spt.'Cd. Concluding tlmt th<' ohjc<.:ts must hnv<' c:omc from onlcr space, or were possihl) a new ty(X' of orbiting \'(hide of Hussian origin, tlw Air For(.-e had promptly clama>ed dmvn tlac st:curit)' lid. \VIacn ATlC's sci<ncc consultant, Dr. J. All<n llynck, looked at the <lata, he just a~ prom(ltl)' disagreed with thtie ideas and clearly idcnli- led the unknown as th<' plnnct Jupiter, which had risen at 6:03 P.~l. E.S.T. and at 1o:oo the hrightt..~t objctt in the t"astcrn sky. The bellC'Vf'l'l in the extrat('rrt'stri