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Archive case record

SE Of Cheju Do Island, July 1959

Date of account
1959-07
Location
SE Of Cheju Do Island
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

PROJECT10073RECORDCARD 1.DATE 2.LOCATION 12.CONCLUSIONS 口 WasBalloon 20Ju1.59 SE of Cheiu Do Island 口 ProbablyBalloon 口 Possibly Balloon 3.DATE-TIME GROUP 4.TYPE OF OBSERVATION not given Ground-Visual Ground-Radar 口 WasAircraft Local 口 Probably Aircraft GMT_20/04252 AirVisual DAir-intercept Radar 口 PossiblyAircraft 5.PHOTOS 6.SOURCE 口 Was Astronomical 口Yes 口 ProbablyAstronomical DNo Military 口 Possibly Astronomical Sonobouys &: Smokeligh 7.LENGTH OF OBSERVATION 8.NUMBER OFOBJECTS 9.COURSE 口. Othor- very fast then 口 Insufficient Data forEvaluotion 口 Unknown not given 7then 10 stationary 10.BRIEF SUMMARY OF SIGHTING 11.COMMENTS Two pilots sighted 7 vessels,line abreast Smoke from flares prompted.rpt.Led to laying smoke, These vessels were traveling at location of sonobouy dyemarkers. high speed and appeared to one observer to Sighting clarified by CNO. be suhmarines.Observers returned to a

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