Purpose of the flight and payload description

Far infrared observation of astronomical sources using a 40 cm aperture, stabilized telescope and liquid helium cooled bolometer

Details of the balloon flight

Balloon launched on: 9/6/1972
Launch site: Columbia Scientific Balloon Facility, Palestine, Texas, US  
Balloon launched by: National Scientific Balloon Facility (NSBF)
Balloon manufacturer/size/composition: Zero Pressure Balloon Winzen - 3.100.000 cuft (1.2 mil) - Stratofilm
Flight identification number: 697P
End of flight (L for landing time, W for last contact, otherwise termination time): 9/6/1972
Landing site: Balloon failure
Payload weight: 1286 lb

Postal cover issued on launch day commemorating the flight

External references

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