Sakhalin, Japan, February 1951February 1951

Insufficient Data

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from Sakhalin, Japan, February 1951 in February 1951. The full case file (5 scanned pages of witness statements, Air Force memoranda, and investigator notes) is reproduced below as held by the National Archives. The Air Force assigned this case to its broader investigation of unidentified aerial phenomena alongside ~12,600 other reports filed between 1947 and 1969. Citation: NARA Record Group 341, Microfilm Publication T1206, Roll 8.

Reported location

Sakhalin, Japan, February 1951

Date of incident

February 1951

State / country

? / XX

Page count

5 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 8

Original case file scans

Original case file · scanned by NARAPage 1 of 5

Transcribed text

PROJECT 10073 RECORD CARD ( :
1. DATE ( '2 LOCATION 12. CONCLUSIONS
a = 0 Was Balloon
IE, Brac vrs STO pie TN G Probably Bolloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION ——|O Possibly Balloon
EE IE isiiisnimngieiiasons OD Ground- Visual tx. Ground-Rodar - reg AR
CMT re 0 Air-Visyai O Air-lntercopt Radar | © Possibly Airceafr
5. PHOYOS 8. SOURCE 0 Was Astronomical
0 Yes Q Probably Astronomical
X No Military 0 Possibly Astronomical
7. LENGTH OF OBSERVATION IE ERAGE I COME ~~ 10 Det
| 8 SRR shane Date for Evaluation
nknown
BEE RE a ee TTT
10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
10 Tracks of unidentifiod A/C picked ups on Identified as USSR Tracks by ADC,
Ground Radar. Speeds varied from 150-500
mph,
ATIC FORM 329 (REV 26 SEP 52)

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Source: National Archives Catalog · NAID 28939090

Connected across the archive

Programs and code names

Project Blue Book

Places

Sakhalin

Agencies

United States Air Force

Dates

1951 1951-02-01