It has two room temperature semiconductor detectors housed in a small pressure vessel.
Balloon launched on: 6/1/1995 at 14:10 utc
Launch site: Columbia Scientific Balloon Facility, Palestine, Texas, US
Balloon launched by: National Scientific Balloon Facility (NSBF)
Balloon manufacturer/size/composition: Zero Pressure Balloon SF3-215.55-080-NSHR-ST
Balloon serial number: W4.0-0-04
Flight identification number: 1540P
End of flight (L for landing time, W for last contact, otherwise termination time): 6/2/1995 at 13:13 utc
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): F 21 h 37 m
Landing site: 7 miles NE of Sterling City, Texas, US
First qualification solo flight in a small balloon. Then flown as a Piggyback payload of GRIS (Gamma-Ray Imaging Spectrometer).
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