PROJECT 10073 RECORD CARD 1. DATE 15 February 1956 2. LOCATION Riverside, California 12. CONCLUSIONS □ Was Balloon □ Probably Balloon □ Possibly Balloon 3. DATE-TIME GROUP Local _______________ GMT 15/2040Z 4. TYPE OF OBSERVATION □ Ground-Visual X Air-Visual □ Ground-Radar □ Air-Intercept Radar □ Was Aircraft □ Probably Aircraft X Possibly Aircraft 5. PHOTOS □ Yes X No 6. SOURCE Military (USN Pilot) □ Was Astronomical □ Probably Astronomical □ Possibly Astronomical 7. LENGTH OF OBSERVATION eight minutes 8. NUMBER OF OBJECTS one 9. COURSE unknown □ Other______________ □ Insufficient Data for Evaluation □ Unknown 10. BRIEF SUMMARY OF SIGHTING One cigar shaped object, brown, with no apparent details. Object followed a straight and level course. Moved through 30 dgr arc in fraction of second. Disappeared abruptly. Pilot first believed the object to be an optical illusion caused by odd shaped contrails. 11. COMMENTS The straight and level course of the object and the fact that there were five known aircraft in the area leaving contrails leads this hq to the conclusion indicated above. ATIC FORM 329 (REV 26 SEP 52)