DECLASSIFIEDUSAF PROJECT BLUE BOOK · NARA T-1206
UNITED STATES AIR FORCE

PROJECT BLUE BOOK

UNIDENTIFIED FLYING OBJECT CASE FILES · 1947 – 1969
CASE REFERENCE6970667
DATE OF SIGHTINGDecember 1957
REPORTED LOCATIONEnglewood Colorado
FRAMES1
→ Original microfilm scan (PDF) → Return to index

Machine transcription · mean legibility 92.1/100 · engines: paddle-gpu-200dpi

Transcribed Frames

FRAME 001 / 001paddle-gpu-200dpi
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PROJECT 10073 RECORD CARD
1. DATE 2 LOCATION 12. CONCLUSIONS
o Was Balloon
15 December 1957 Englewood, Colorado 00 Probably Balloon
3. DATE-TIME GROUP 4 TYPE OF OBSERVATION Possibly Balloon
Local. Ground-Visual Ground-Radar a Was Aircraft
a Probably Aircraft
GMT_ 16/0035Z AinVisual Air-Intercept Radar 0 Possibly Aircraft
5. PHOTOS 6.SOURCE 0 Was Astronomical
Yes 0 Probably Astronomical
24N Civilian Possibly Astronomical
7. LENGTH OF OBSERVATION . NUMBER OF OBJECTS 9. COURSE Other.
Evaluation
one & one half to 2 circle Unkno wn
mins one
TO. BRIEF SUMMARY OF SIGHTING 1. COMMENTS
One object seen flying in a circle for Insufficient data for analysis. -
1 1/2 to 2 minutes.
No report in file.
)
ATIC FORM 329 (REV 26 SEP 52)
4
Public-domain United States government records (USAF Project Blue Book, NARA microfilm publication T-1206). Machine transcription from microfilm scans — typewritten bodies read well; stamps, marginalia and handwriting imperfectly. Pages marked poor legibility await re-examination. Source scans are linked unaltered on every case file.