20 Mi S of Portland, Maine, December 1957
- Date of account
- 1957-12
- Location
- 20 Mi S of Portland, Maine
- Source
- uap_archive
- Record updated
- 2026-10-10
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 onlyPR0JECT 10073 RECORD CARD DATE 2.LOCATION 12.CONCLUSIONS 口 Was Balloon 10 December 1957 20 Mi S of Portland, Maine 口 Probably Balloon 口 Possibly Balloon 3.DATE-TIME GROUP 4.TYPE OF OBSERVATION 1130 Ground-Visual Ground-Radar 口 Was Aircraft Local 口 Probabiy Aireroft GMT10/1130Z XXAirVi sual Air-lntercopt Radar 口 Possibly Aireraft S.PHOTOS 6.SOURCE 口 Was Astronomical 口Y.. 口 Probably Astronomical 口 Possibly Astronomical XKNo B-47 Crew 9.COURSE XXothor- Sputnik 7.LENGTH OP OBSERVATION 8.NUMBER OP OBJECTS 口 Insufficiont Data for Evaluation NW to SE 口 Unkno wn approx 4 minutes euo 1O.BRIEP SUMMARY OP SIGHTING 11.COMMENTS B-47 crew sighted a small object Time, appearance, bearings etc., somewhat similar to a star, while indicate that the object was flying at 35,000 feet.0bject was Sputnik - the Soviet satellite. on an unvarying heading of about Check with orbital tracks and 170 dgrs.Did not app
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