Tokyo, Japan, May 1955May 1955

Insufficient Data

Summary

On May 20, 1955, a military observer in Tokyo, Japan reported sighting a swept wing object at approximately 60,000 feet. The object was observed for 14 minutes before it disappeared, leaving puffs of smoke behind. One object was sighted. The course was unknown. The Air Force noted the sighting was possibly aircraft but stated that additional information was needed before further analysis was possible.

Reported location

Tokyo, Japan, May 1955

Date of incident

May 1955

State / country

? / XX

Page count

2 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 23

Original case file scans

Original case file · scanned by NARAPage 1 of 2

View transcribed text

PROJECT 10073 RECORD CARD

1. DATE                           2. LOCATION                    12. CONCLUSIONS
20 May 1955                      Tokyo, Japan                   [ ] Was Balloon
                                                                 [ ] Probably Balloon
3. DATE-TIME GROUP               4. TYPE OF OBSERVATION         [ ] Possibly Balloon
Local                            [ ] Ground-Visual              [ ] Was Aircraft
GMT    20/0745Z                  [X] Air-Visual                 [X] Probably Aircraft
                                 [ ] Ground-Radar               [ ] Possibly Aircraft
5. PHOTOS                        [ ] Air-Intercept Radar
[ ] Yes                                                         [ ] Was Astronomical
[ ] No                           6. SOURCE                      [ ] Probably Astronomical
                                 Military                       [ ] Possibly Astronomical
7. LENGTH OF OBSERVATION                                        [ ] Other
14 minutes                       8. NUMBER OF OBJECTS           9. COURSE  [X] Insufficient Date for Evaluation
                                 One                            unknown    [ ] Unknown
10. BRIEF SUMMARY OF SIGHTING                11. COMMENTS
Swept wing object sighted at approximately   Possibly aircraft. However,
60,000 feet. Object disappeared              awaiting additional information
leaving puffs of smoke.                      before further analysis
                                             is possible.

ATIC FORM 329 (REV 26 SEP 52)

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Source: National Archives Catalog · NAID 28962169