PROJECT 10073 RECORD CARD 2.-LOCATION U. CONCLUSIONS 0 Was Balloon ~ 1 Q t b 1957 44 4,,.l 1 If 1 AnT."\ 0 Probably Balloon 3. DATETIMI! GROIJP .C. TYPE OF OBSERVATION 1830 D Was Aircraft Local . B~raund-Visuol D Ground-Radar 0 Probably Aircraft CMT 31/0930Z . D Air-Visual 0 Air-Intercept Rodor Possibly Aircraft C Was Astronomical 0 Probably Astronomical 0 Possibly Astronomical 1. LENGTH OF 08SiRVATION I. NUMBER OF OBJECTS 9. COURSE tQ( Insufficient Data for Evaluation 0 Unlcnown 15 minutes ona stationary lo-. _B_R_I_E_F_S_U_M_M_4_R_Y_O_F_SI_G_H_T_IN_G ;~--11. COMMENTS Pillar of flaroa 100 miles high observe< in the West by fishermen for duration of 15 minutes. Color changed from red to blue than it disnppeared. Insufficient data for evaluation A.TIC J'ORN l:Z? (RJ'.V "2ft SF.P 52) tJI!CLASSI?ISD A ncy; ~OC4~n ~ir In Enti!'~ Doc~r.t L Th1 i r . .:' oz-::<> : 1 o n c .-:m t a in ad in th i 3 re P'l't was obt a ir.a d" ~ cr Mr r.~t' c !' t b~ Av1.9.t1or. A .. l!!linistratio n Section ;~nd ~. Chi~J.t' O!' the No. 2 :=:.ec'l!"ity ::>ectic'l. ~1.\RIT L'!l SA?STY BOARD, as raPortad to t.J::e: by J,ica~se fisher: en off 7.!1s HOKJUIDO Coast. . 2. This ::-e pc:-t c ::>:: tai::lll informaticr. on thr;~e :i1.u:inou.;; ~ ightii~(;e ::!" un~oc.rn oris i n .. LL~!NOUS SIGfiT I~7G3 OFF TH! HOKA!WO CCAST 1. On 8 ~larch 1952 per!lonr>d :Jf th9 Air Technical Intal1.1~nce Section, . l /1, Card ?...o ntly" t10:C<Al!J0 by fi.Jr v J.., o hour~. t~3r~ ,.-!J::"~ :-,o osro~etr."'..c " r 3j:j.:.s:ni~ cha~gas L!dicetlva <.f -1n ex-:lcs"lon at t,te b . :~fi..!!f3.1 s 0:.."' ~.}i -3 He tje orolo::;ical i\~ar.c:i'" sta~ .. ed th~ t. :r:.y tJI.irumatrlc cr:an.~"J woU::i ~s c;;,"...e-:tBi at. '..13-;it.h~:-nt:.1ticn3 in JAPu~. Tha E_e1.'3:nic_ d~t j,"\00 /O o~ .. .:1 nucla~ Bx-,lcsicn at, t~.c ~ --A.T;;);J3HIF.C S3ts::CLOGIC.;: Co5I;RVi\TOF.Y i3 beliavl!d to r.a~19 b~n i:l~tig o3.:! frc:n this ... ~arch." (F.afer to" 6oo4't.h :\r:;s, IR 1885-58 for seis':l.ic dJ~J~c:.i..):. of USSR n:.1~laar explosion.)