Montana - Canadian Border, December 1957December 1957

Insufficient Data

Summary

On December 8, 1957, a pilot near the Canadian border reported a ball of light while flying at 40,000 feet. The pilot was going into a turn from west to south and leaving heavy contrails when he noticed the ball of light with a black streak. The sighting was logged at about 9:50 p.m. local time. The Air Force recorded the case under Project 10073, its official record for unidentified flying object reports. The card notes that plots of the sighting showed the sun was to the pilot's front and right at almost the same level, suggesting the object was related to the sun and the aircraft's own contrails.

Reported location

Montana - Canadian Border, December 1957

Date of incident

December 1957

State / country

? / XX

Page count

3 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 31

Original case file scans

Original case file · scanned by NARAPage 1 of 3

View transcribed text

GO
1 ake PROJECT 10073 RECORD CARD Bia
j I. DATE 2. LOCATION 12. CONCLUSIONS |
i O Was Balloon
| 3 8 December 1957 he - Canadian Border O Probably Balloon
| 3. DaATE-TINE GROUP 4 TYPE OF OBSERVATION O Possibly Balloon
Local 93:50 P.M, OD Ground-Visuol D Ground-Radar 3 ast |
GMT 08/2250Z XeAlr Viswol 0 Air=Intercept Radar O Possibly Aircraft |
S. PHOTOS » SOURCE 0O Was Astronomical
0 Yes O Probably Astronomical
XIMNe F-89 Pilot O Possibly Astronomical
7. LENGTH OF OBSERVATION 6. NUMBER OF OBJECTS | 9. COURSE ox OtherRefle sian
; =. insutiisi ans Data for Evaluation
10 minutes ; one W to South
| [10. BRIER SUMMARY OF SIGHTING 11. COMMENTS
: Pilot at 40,000 feet going into a turn| Plots on UFO report show follow- ’
from West to South, leaving heavy ing: a) sun was to his front &
: contrails notice a ball of light right & at almost same Tevel when
| with black streak on the imside of he went into turn, b) heavy horse-
his turn and about 1/2 60 3/4 mi shoe shaped (thick) contrail was
: away, Obj appeared to stay with pilot | to his left, Conclusion: Probable |.
: after he returned to another heading. | reflection of sunlight off his a/c
; He then lost it, intersecting with a shadow (black
dark) thrown on the contrail slightly |
behind him & to the left as he :
moved, which would appear as _a_s&ngo
moving with him, (See 4% =
1 work)
{ ATIC FORM 329 (REV 26 8ERP 82)
; x |

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Source: National Archives Catalog · NAID 28975916