PROJECT 10073 RECORD CARD 1. DATE 7 Aug 61 2. LOCATION 3153N 12900E (FAR EAST) 3. DATE-TIME GROUP Local 2155 GMT 071255Z 4. TYPE OF OBSERVATION ☒ Air-Visual 5. PHOTOS ☒ No 6. SOURCE Military 7. LENGTH OF OBSERVATION 12 min 8. NUMBER OF OBJECTS 9. COURSE NE 12. CONCLUSIONS ☒ Other Prob Echo I 10. BRIEF SUMMARY OF SIGHTING Objt believed to be satellite in sight 12 min observed fm 50° elev 220° T az. Disappeering in clouds at 20° elev 040° az. 11. COMMENTS Description of objt and duration are characteristic of satellite Echo I. A computation of its orbit indicates that it was on a NE orbit W of observer's location at time of sighting. Therefore concluded that objt was probably Echo I. ATIC FORM 329 (REV 26 SEP 52)