USAF record 28987673

CHEATHAM, A. M. PROJECT 10073 RECORD CARD

1. DATE 6 Jul 60

2. LOCATION S of Portland, Oregon

3. DATE-TIME GROUP Local [ILLEGIBLE] ONCE GMT 07/05222

4. TYPE OF OBSERVATION Ground-Visual [HW: Ground-Radar] Air-Visual [HW: Air-Intercept Radar]

5. PHOTOS Yes [ILLEGIBLE] ONCE

6. SOURCE Civilian

7. LENGTH OF OBSERVATION 45 sec

8. NUMBER OF OBJECTS two

9. COURSE N

10. BRIEF SUMMARY OF SIGHTING Two objects the size of a half dollar at arm's length, round with flat top and round bottom, luminous white, observed to change formation from side by side to a vertical formation. Travelled from 30° elevation due S to 45° elevation due N after passing overhead in about 45 sec. No sound.

11. COMMENTS About 9:30 at night with a bright moon. Time for an a/c to travel a 90° arc at 20,000 ft is about 1 min. Witness probably observed 2 jet a/c at about this altitude (speed 600 kts). At this altitude the red and green running lights are not visible and only the white solid light can be seen from the ground. It is difficult to understand how the witness knew the objects were flat on top. No evidence to indicate that this was not an a/c sighting.

ATIC FORM 329 (REV 26 SEP '93)