1. OA i'E Tla. GltOU' 4. NUMifR opr OIJICTS 2. LOCATtON 10. CONCLU&ION cpor-t a cb~ects ~tr,ril:ttteci tD e:T ~ct.~ ol' i.."ll c r:;i or-. .:: 5. L!NGTH 0, OISIRVATION 6. TY~! 0, OISI.VATION !J. P HOTOS 9. PHYSICAL IVIDINCI ... II, IUMMAitY AND ANALYSIS -!l rml!1g th b.l. lt'f':lU llltlt fu~-th n ''Cl'l wvu!.ln't h=t\f' ~our hncr"'!fln nr ' "' I l c: I f' t, fCcnli l'trd on P oqr r,.n. ,,,, alltl fl.' 1'F.' !l"r.n,\'fUP.ES MEMO RUUTING SLIP . t NAM O" TllU NVR US FOR APPR.OV Al.. .J I SAPPR.OVALS, CONCURRNCS. OR SIMILAR ACTIONS CIACI..lAT E OAGAflllA f~ AHO LOCATIOH OAT COOROIHATION _,I'IFOPMATION ~IGNAT\JRE fRON HAM OR TITU: O .. GAIOilATION AHO lOO.TION I TElEPWO .. E JWPML fa06 r" . UNCLASSIFIED CNCL.ASS\F\ED PAG !NO JWPML 10F OBJ~CT FIRST SIGHT~D OVER OCEAN A?PROXIMATELY 4 MILES AWAY, HEADI~G IN.LAt'lD PASSI:'-lG OVER GOC POST THE:"J OVER CITY OF SAN FRANCISCO. EST!- ~iAT~D ALTITUDE 10,~3~ FT. 5. 03~ZRVERS WEREs , , SA~ FRANCI SCO, CALIF, SAN B~RN AN ITO, CALIF, N, SAN FRANCISCO CALIF. 6. CLEAR WITH A FEW SCATTERED CLOUDS. 7. ACCORDI~G TO THt SAN FRANCISCO EXAMINER DATED 14 FEBRUARY 1953 T.iOUSANDS OF' PER!>ONS OBSERVED SIMILAR OBJECTS OVER THE SAN FRANCISCO BAY AREA DURING THE E~RLY MORNING HOURS OF 13 FEaRUARY 1953 A"~D AGAIN DURING THE EARLY VNiNG OF THE SA~E -DATE. THE SAN FRANCISCO WEATnZR J BUREAU REPORTED A MASS OF WARM AIR ENC'ASED BETWEEN TWO LAYERS OF - ;-COLD AIR OVER THE SAN FRANCISCO BAY AREA AT AN ELEVATION OF APPR~XI- .;., .)~ATELY .3~" FT DURINC THE PERIODS OF THIS OBSERVATION. DR OTTO STRUVE, ... AN ASTRONOMER, EXPLAINED THE EXISTENCE OF THESE SIGHTINGS THE RESULT OF AN INVERSION CAUSED BY WEATHER CONDITIONS ACCORDING TO THE EXAMINER STORY. ACCORDING TO THIS NEWSPSPER MANY OF THE PERSONS OBSERVING THIS OBJECT PLACED IT 9~TWEEN 3020 DO'.\~GRADED A T UNCLASSlFlED 161~225Z FEB JWPML DE JWP;wt_ tef UNCCASSIF'lED ?~ CG 23TH AIRDIV HAMILTON AFB CALIF TO JEPHQ/DIR OF INTEL HQ USAF WASHINGTON 2~ D C '~q~ADED AT 3 YEAR INTERV ~I~. 'J.:.CLA .... SIFIED AFTER 12 YEARS Jt ' JEDWP/ATIC WRIGHT PATTERSON AFB OHIO JEDEN/CG ADC NT AfB COLORADO SPRINGS COLO I~FO Z11/Jl.JPML/CG WADF rtAMILTON AF3 CALIF 28Trl OlD 0131Z ATTN I~TSLLIGENCE. ~TTN ATIAA-2C. 1. ONE ROU~D, SLACK OBJCT fOLLO~ED BY TJO SILVER STRA~5 WHICH APPEAR- ~D TO B~ VAPOR TSAILS. OBJECT MOVING AT MODERATELY HIGH SPEED MANEUVER- ING UP AND DOWN AND ON ZIG ZAG COURSE. T~ROBBING SOUND HEARD WHEN OBJECT PASSED OVERHEAD. i~APPEARED FROM LINE OF SIGHT OVER ,SAN 2. BETWEEN 1758 AND 182~PST, 13 fEBRUARY 195.3. .3. VISUALLY FROM THE GftC~iND 1 4. OBSERVERS LOCATED At GOC POST, MT SUTRO, SAN FRANCISCO, CALlF. UNCLASSIFIED APPAO~ 1 JUNE 1M United states AJR INTEWGENCE INFORMATION REPORT ecta Short T FLIOBRP'l' o!_ Growxt Obser:ntr Jht-:-' l..--- In aocerdnee with jlL 200 '" dated 29 jpril 1952, Subject: nunidenti!ied F~ing Object leporting (Short. 'l'itlea 7LYOBRPT ), t he !o11Dwin'! report. o! an uaidtmtifiecl ll.Tins object 1a au tted. On 13 r.bru&J7 1953, betwen 17.58 and 1a20, PST four observers manning a GOC Post on top ot llourt, Sutro in San Francisco, California si .,tad a n urr- idllnti!iad filing ooj cct. This objoct ;vas s l,gnt.ed over the ocean at an alti- tude eat!Jaat ' 10 000 taet. The object was de:scri bed as rouni .-dth .that ~ A tollowing it. The s peed ot this ooject was not e d b\& it appeand oonaideraoly slower than tr..at o! an airc:oaft. ID .,unct heard t.hia o bjeot except during the period when it paaeci ner tM GOC Pest.. !M objeot appealed to llll!!J up and daJm ancLbad a .z;g_, ~g course. Objaot, cl1ppean4 ov:.er the c:it.7 o! San .?rarc.isco. Inoloaed. bewitb ia a cop7 ot the stor,y pertain' ng to t he3c objects aa priaecl br tt. San rramico Enmtner dated 14 February 1953. ACCording to t he r thouallis ot per,ona in the Bay area observed the sane or s imilar ebjecta t.o the om describe in thia report, during too e&J-ly tJOrning houra ancl rl7 eTenizw ot 13 PabruAJ7 1953. OKVILLB .B 41..- Captain, l~Ul ....,_per art1cl.e, hamiace bemi DIJ" Din~er of lzt,ell t gence :. copy C:ue:!, .l.ir Technical I~eJligcnce Cezrver ATIAA-2c Wrig."t,..Pa.t.terson AE!J Jiv~iTr:JGs Ynna City, Arizona . !a..'<'Well ArB, Alabama La ncaster , Pennsyltania 3~ythe, c.::~or~s ~ofl371k Air?o=~. Icel~d J .,.ra to~a .3prings, ~few York - 1arryville, Pennsy1saniav 1 l ,. rerre .Haute, l:1diana 9J.I.;J'z. t,f-fA.t4~yracuse, ~e11 Yor k Finland, Minnesota -J .:sB 53 3!G3TI:JGS CJ.rsv e l l AF3, Texas ?etersbu.r-'!iz'ginia j n ~ra~ciaco, Calif)rniaJ r aurfl!l, Hontana j P3trick AFE, Florida J Richlnond, Tirginia J Dobbins AFB ,bb1ns AFB, Georgia i Barter Island, Alaska ====;:;.- Corbin, K .. ntucky ~ Northeastern Hokkaida J Iff 10 ~o:Jer ,,;;l ( Continued ) F~r tvil1e, Indiana .ueens , :lew Yor k ~out~e=~ ~lisconsi~ Dore:: . ._ 3 , .Dele:Ja.re Dod s on , ~lion:.ar:a V' IJreen Bay , l'iisconsin r-. Ch6-do , North Korea / -.-.turgeon Bay, Wiscons i n P or t Aust in, Hi chigan E l mendorf AFB, Alasa Bremerton, Washington v' Elmendorf, Alaska ./ Rainer, Al aha ,/ :elav..J.re Dover A FB, D@lavare / iQ.3math Falls, Greenl and Honshu, Japan ~lorthern Kiyusha Pepperell AFB, Nevtoundland ian kit cute, Texas Kingsville, yland ~ Charleston, 'tlest Virginia _..., 'Jreat Falls, :l{ontana ~F FORM 112-1' ART lJ APPROVED I JUNE 194 AIR INTELLIGENCE INFORMATION REPORTUNctASSfFIEO D1r. ot Intel. 28 AD. KaadJ ton AFB, California An un1cleDt.i.t1ed fiying object. waa obeened b7 tour members ot a G<:x: Post located on top of J&. Sutro in San Francisco California during the evening 1. De80ript1on ot object. 011!_, raund~ hl k ob~ect-wblch a?pe;red to b-a t.vo ailnr.. at.reka !ollowing it (possi'bl7 vapor tralls). Object appeancl. to be gaintrw and losing conaiclerable altitude &nd fiying a sig zag cour:se. Jb ear.:s at propulsion were observed. A throbbing eou..'"ld was heard appar- ently com1ng .tJ'Oil the object aa it. paae.t overhead the GOC Poat where the obaeners "" located. The. uniclentJ.tied fiying object disappeared from view over the city of San Franci3co. Object 'Was t irst o bser"Ted approximately tour miles to the West ani owr the ocean. Speed ot this unidenti!"la d object ap- peareo. to be al .. er than that of a oonvent.iorwJ airoraft.. 2. Time ot aiaht1~ waa bet .. en 17~.~ .. 1820 PST, 13 February 1953. 3. llam.r of obeenati4n waa viauaJ without aids. wit.h tllia objeot ftl'W report ~ radar contacts 4. Loeatloa of Olntll'tre c1UJ'irw sighting was on top or lbunt. Sutro, San Ot C1litorJia. Tn u.nide&itied fiying object nae estimated by' the obaervera aa bei.Jw approtaat.elT 10 000 feet, altitude. S. The ra ol thia object, wares , San ~Jzanciaco, CalllJ , , San Bernani;.o, Calif; 81n Pn 4 oo, Calif. 10. Negatin. Capta , USA7 . DirecU>r o! Intelll :-encc Dt)\VXGR.-\DED AT ~ p~ .\R IXT!::RV .\.L~ DOD l.JL.~ ~i~OO.lO 1;.{~::1ic:r, Alabaca . ~il:!.ow, Alaska tA.ilitary Ai r :od3on, atana u s, New Yor~ li'o:--tvi lle, Indiana sc~: :-:1 ~iscons~n :.ra:r:on, Ohio rtili tary A!.r 'i.:.sual r;ot, Reoortec GroWld & A:!.:- ~ot Recor~ed C~arl:!ston, ',.es~ 'i~::-~ini3 Ja;~:1 (Mul~iple Loc a tions) G:-ee:1und ~"?pe:-ell AD, l'lev:"ow:dland u~::m~h Falls, Oregon 'San onio, Texas :.!ul tiple Ground ( RAD,1_q) ~l:iple Milit3.rJ Astro ( r::cA) 1:1suftici :a~a Astro ( ~rJt'S) c\s t.:-o ( 'G~nJS) In~uf~'icieot Ca : a .l.s tro (~!:OR) .1\stro (VE~) I~suffici t t ata As t r-o ( t~:rus) I.csui'ficien"t Insuff'ici~nt Sl~ctroni~ Co~tet'''e~sure, 1. Ughthcuse Li~t 3. Astro (R~) ~version (v.<) .Astro (~1tJS) 1. ~alloon .l s ~ro ( v i:JS)