Balloon launched on: 9/30/1981 at 6:53 jst
Launch site: Sanriku Balloon Center, Iwate, Japan
Balloon launched by: Institute of Space and Astronautical Science (ISAS)
Balloon manufacturer/size/composition: Zero Pressure Balloon model B50 50.000 m3
Flight identification number: B50-19
End of flight (L for landing time, W for last contact, otherwise termination time): 10/1/1981
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): ~ 30 h
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