PROJECT 10073 RECORD CARD 1. DATE 30 May 64 3. DATE-TIME GROUP Local _______________ GMT 31/0155Z 5. PHOTOS □ Yes x☒ No 7. LENGTH OF OBSERVATION 6 minutes 10. BRIEF SUMMARY OF SIGHTING Slow moving object moving across sky from position overhead to beyond horizon in SE. Bright white. Shallow zig-zag flight pattern. High in sky. Round. ATIC FORM 329 (REV 26 SEP 52) 2. LOCATION Dorchester, Massachusetts 4. TYPE OF OBSERVATION ☒ Ground-Visual □ Ground-Radar □ Air-Visual □ Air-Intercept Radar 6. SOURCE civilian 8. NUMBER OF OBJECTS one 9. COURSE SE 12. CONCLUSIONS □ Was Balloon □ Probably Balloon □ Possibly Balloon □ Was Aircraft □ Probably Aircraft □ Possibly Aircraft □ Was Astronomical □ Probably Astronomical □ Possibly Astronomical ☒ Other ECHO I □ Insufficient Data for Evaluation □ Unknown 11. COMMENTS ECHO i 851pm EST, 30 May 64 at 88 deg elevation S of City in Flight to SE.