Purpose of the flight and payload description

The instrument was a high resolution gamma-ray spectrometer for astrophysical measurements. It was composed by a large Ge(Li) crystal (140 cm3) cooled to liquid nitrogen temperature and actively shielded by a sodium iodide crystal. Spectral resolution and effective area, were respectively 3.0 keV (fwhm) and 2.7 cm2 at 1 MeV

Details of the balloon flight

Balloon launched on: 8/20/1978 at 2:23 utc
Launch site: Base di Lancio Luigi Broglio, Trapani, Sicily, Italy  
Balloon launched by: Agenzia Spaziale Italiana (ASI) / Centre National d'Etudes Spatiales (CNES)
Balloon manufacturer/size/composition: Zero Pressure Balloon 330.000 m3
End of flight (L for landing time, W for last contact, otherwise termination time): 8/21/1978
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 24 h 37 m
Landing site: In Santa Ollala, Madrid, Spain
Campaign: ODISSEA 78  
Payload weight: 720 kg
Overall weight: 970 kg

External references

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