PROJECT 10073 RECORD CARD 2. LOCATION 12. CONCLUSIONS 17 Deceaber 1957 near Grand Junction a Probably Balloon Local-----------IJt. c1-VI I D GtunciRoclor a Was Aircraft "" suo a Prolaoltly Aircraft D Was Ashonoml col D Yea D ProltoWy Aatronomlcol No lian D Possibly Astronomical 7.L!~THOP~OI~S~I~R~V~U~I~O~N----~L~N~U~M~II~R~O O~I~JI~a~s ,.-C~O~U~R~S~!---~ID Other ~lDEMTl!IED D Insufficient Data for Evaluation one SW to S lEX Unknown 10. IRI!II SUMMARY OP SIGHTING One round yellow, whitet green, red object seen aoving SW then S for 45 minutes. Passed Venus. ATlC oltM 329 (II&V 21 laP 12) 1 1. COMMINTS Object in sight for 45 minutes in sane area. Moon was down sun had set. Astronomical twilight also passed. Contrails would not be v - 1 ble, indicating object possibly light source. Unidentified U F 0 B RZPORT . A. Information on object( s} observer a 3. Mailing .Occupation Tab 5 Telephone No. UL j9j4 Description o.f object (s): Number o ec s Any discernible features or details Tail~ trail or exhaust, including s sanB compare ~a se o Vapor trail twice size ot object. c. Description of course of object(s): l. ~hat first called the attention of observer(s) to the object(s} Jars wpite ~eel t rward -ed -n:ovecl backwards. Angle elev~tion and azimuth of the object s when irst observed 70 dep:ees Due south . Angle cr ~levation and azimu'th of object(s} upon disappearance a.nd south west ' ------- 4. ~"'scr pt on o a ma.nuevers o ect s South West. ,,.,... about l 000 ~t.. due South ----------- ner o. disappearance or object s D. Manner of observation: 1. Use ground visual (if oth3r specify) 2. Statement as to optical aids (Telescopes, binoculars, etc.) E. Time and date of sightings: time-data of sighting 0220 Z_ 18_ December 19.57 conditions (use one oftlle ib llOWing terms) :N1ght, q;~ F. V!eather conditions at time of sighting Locntion of any air traffic in the area at time in tbe ~=-o=r