PROJECT 10073 RECORD CARD 1. DATE ,._. 2. LOCATION CONCLUSIONS Was Balloon San Mateo, California 6 December 1962 P robobly Balloon Possibly Balloo n 3. DATE.TIME GROUP 4. TYPE OF OBSERVATION C Ground-Radar c Was Aircraft Probably Aircraft ~round-Visual c Possibly Aircraft Was Astronomical 5. PHOTOS 6. SOURCE ~0 Civilian 1. LENGTH O,. OBSERVATION 8. NUMBER OF OBJECTS 2 minutes one 10. BRIEP SUMMARY Of SIGHTING Sighting in morn by 13 y r old boy of obj about 100 ft in diameter, round smooth or oval shape at alt o f 100-160 yds exhibiting speeds of 100 mph to 1,000 mph. Direction of f light to North. blaneuv ers included standing still, straight up, and side- ways. Color was red like a ball of flame. No sound. Duration was 1 / 1/2. mins ~oming d o wn (approachin~)27 sees hover1ng & three sees go1ng ~way. ~ky conditions fog. ATJC PORW 329 (REV 26 SltP 52) 11. COMMENTS Probably Astronomical c Possibly Astronomical lOX Other UnreUabla Rnt C lnsuffi ci ent Data for Evaluat1 o n Duration indicates aircraft sighting. Ball of flame indicates jet w/afterburner or possible meteor; however, sightin g at dawn & brightness not indicatedo No.mention of how time figuredo 27 sec hovering not consistent with a/c analysis. Alt of 100 yd extremely lowo Detail should have I 1: been noted during hovering. Sound 1 should have been audible at such low level. Conflicting data-unrE -