USAF record 28957187

1. DATE - TIME GROUP 29 Dec 53 30/0426Z

2. LOCATION ROCK SPRINGS, WYOMING

3. SOURCE MILITARY AIR VISUAL

4. NUMBER OF OBJECTS one

5. LENGTH OF OBSERVATION 7 mins

6. TYPE OF OBSERVATION air visual

7. COURSE ---

8. PHOTOS □ Yes □ No

9. PHYSICAL EVIDENCE □ Yes □ No

10. CONCLUSION INSUFFICIENT DATA FOR EVALUATION Duration and speed in conflict. Possible that other a/c was the cause, however data presented is too vague for firm eval.

11. BRIEF SUMMARY AND ANALYSIS Obj changed color from red to white like heated. Might have been a blinking light. Speed estimated at 1500 to 2,000 mph Two obj in formation four miles apart No trail or exhaust Air Visual from C-47 obj disappeared by going north and other by going straight up Observed for 7 mins.

FORM FTD SEP 43 0-329 (TDE) Previous editions of this form may be used.