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Archive case record

Selfridge AFB, Mich, July 1951

Date of account
1951-07
Location
Selfridge AFB, Mich
Source
uap_archive
Record updated
2026-10-10

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Record summary

Project Blue Book case file indexed from National Archives metadata; page-level review pending.

Published source text

Read the available text below. Archive transcriptions may contain OCR errors; later context is labelled separately. A recorded claim is not a finding that it happened.

Source page 1

Source text · mention only

PROJECT 10073RECORD CARD 1.DATE 2.LOCATION 12.CONCLUSIONS 30 July 1951 Selfridge AFB, Mich 口 Wos Balloon 口 Probably Balloon 3.DATE-T!ME GROUP 口 Possibly Bolloon 4.TYPE OF OBSERVATION Bet1114Z&11322 口 WosAircraft Locol-- Ground-Visua! αGround-Radar 口 Probcbly Aircroft GMT_1774Z D Ai~Visual D Air-lntercopt Radar 口 Possibly Aircraft 5.PHOTOS 6.SOURCE 口 Was Astronomicol OYos 口 Probably Astronomical Radar Observers 口 Possibly Astronomicol Pagatipn CNo 7.LENGTH OF OBSERVATION 8.NUMBEROFOBJECTS9.COURSE Othor.Anomalous Pro/ 口 InsufficientDatoforEvaluation 口 Unknown 18 minutes 1 10.BRIEF SUMMARY OF SIGHTING 11.COMMENTS Speed of the blip varied from an estimated Evaluated as Anomalous Propagation. 3,000 to estimated 28,000 mi per houd High scatter clouds.Observatories rept no observed meteors or similar activity at the time.Technical representatives conclud that acertain set of electronic and atmo

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