1. DATE 13 May 1952 2. LOCATION classified location See "Elcentro" 13 May 52 for 3. DATE-TIME GROUP approx Local_______ GMT 1141 Z 4. TYPE OF OBSERVATION □ Ground-Visual □ Ground-Radar □ Air Visual Radar □ Air-Intercept Radar 5. PHOTOS □ Yes ☒ No 6. SOURCE Radar Crew 12. CONCLUSIONS □ Was Balloon □ Probably Balloon □ Possibly Balloon □ Was Aircraft □ Probably Aircraft □ Possibly Aircraft □ Was Astronomical □ Probably Astronomical □ Possibly Astronomical ☒ Other possibly meteor □ Insufficient Data for Evaluation □ Unknown 7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS 9. COURSE