Purpose of the flight and payload description

A first-generation (balloon-borne) coded-aperture imaging telescope covering the energy range 160 keV - 10 MeV using an array of BGO scintillators as a detection plane.

It was capable of imaging photons in the 160 keV to 10 MeV energy range.

This was the first successful flight after two consecutives failures due to balloon burst (1982 and 1983).

During the flight were observed the Crab Nebula, the Cygnus region, NGC 4151, SS433, 3C273, and CG135+1.

Details of the balloon flight

Balloon launched on: 10/1/1984 at 14:25 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 SF-384.52-060-NSCR-01
Balloon serial number: W21.62-2-01
Flight identification number: 1379P
End of flight (L for landing time, W for last contact, otherwise termination time): 10/2/1984 at 22:35 utc
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 32 h
Landing site: 4 miles N of Mabank, Texas, US
Overall weight: 1600 kgs

The telescope was succesfull launched at 14:25 utc on October 1, 1984 reaching an height of near 40 km at approximately 17:00 utc.

The payload remained at float altitude until the flight was terminated 32 hours later on October 2 at 22:35 utc.

External references

Images of the mission

         

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