1960.06 - 7813729 - 15 mi SW Lead, South Dakota

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1. DATE - 2 LOCATION 12. CONCLUSIONS 2h June, 1960 Woes Bolloon 15 mi SW Lead, South Lr%ota ooag aoo aco Probably Balloon Possibly Bolloon DATE-TIME GROUP 4. TYPE OF OBSERVATION Lecal & Ground- Vi suel D Ground-Rodar Was Alveraft Probobly Aircraft GMT. 2),/09552Z O Air Vi sual D Alr-Intereep? Radar Possibly Aircraft Was Astronomical Probably Astronomical Possibly Astronomicel LENGTH OF OBSERVATION 6. NUMBER OF OBJECTS | 9. COURSE RT Henne mc Menng ENE eA trot:O ogp Insufficient Dete fer...