Purpose of the flight and payload description

 

Details of the balloon flight

Balloon launched on: 11/4/1977 at D
Launch site: TIFR National Balloon Facility, Hyderabad, India  
Balloon launched by: National Balloon Facility, Tata Institute of Fundamental Research
Balloon manufacturer/size/composition: Zero Pressure Balloon Indian Balloon film 94.000 m3
Flight identification number: 321
End of flight (L for landing time, W for last contact, otherwise termination time): 11/4/1977
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 7 h
Campaign: GRISP (Gamma-Ray India Soviet Project).  
Payload weight: 418 kgs
Overall weight: 737 kgs

Succesfull flight

External references

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