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Archive case record

Porto Alegro, Brazil, December 1957

Date of account
1957-12
Location
Porto Alegro, Brazil
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 10073 RECORD CARD 1.DATE 2.LOCATION 12. CONCLUSIONS 口 Was Balloon 5 December 1957 Porto Alegro, Brazil Probably Balloon 口 Possibly Balloon 3.DATE-TIME GROUP 4.TYPE OF OBSERVATION 1300 Hround- Vi sual Ground-Rador 口 Was Aircraft Local. 口 Probably Aircraft 05/1600z BX O AP#Vi sual D Air-lntercopt Radar 口 Possibly Aircraft GMT. 5.PHOTOS 6.SOURCE 口 Was Astronomical 口Y. 口 Probobly Astronomical 口 Possibly Aatronomical Brazilian Military 7.LENGTH OP OBSERVATION 8.NUMBER OP OBJECTS 9. COURSE 口 Othor- Insufficiont Data for Evaluation not reported two not reported Unknown one or 10. BRIEP SUMMARY OF SIGHTING 11.COMMENTS Newspaper article forwarded with IR. Insufficient data for analysis. Reported that Brazilian military were observing object resembling star or planet and that it separated. Apparently newsmen were called to witness the obj. ATIC FORM 329(REV 26 SEP 52)

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