Browse Publications Technical Papers 2008-01-2122
2008-06-29

Thermal Control and Analysis of SAPHIR and SCARAB Instruments on Board MEGHA-TROPIQUES Satellite 2008-01-2122

The French-Indian MEGHA-TROPIQUES satellite is devoted to the atmospheric research. Data collected by the satellite will improve our knowledge on the water cycle contribution to the climate dynamic in the tropical atmosphere and our understanding of the processes linked to the tropical convection.
The payload is made of MADRAS (developed by CNES and ISRO) and of two instruments provided by CNES: SAPHIR and SCARAB. The paper presents:
  • the thermal control design of the two CNES instruments SAPHIR and SCARAB, taking into account the mechanical and scientific constraints. This design is based on a passive thermal control, on uses of heating power for cold cases or safe mode. This thermal design is today analyzed and the main results will be shown;
  • the validation logic is now defined and instrument thermal tests are in preparation. These instrument thermal tests will be done in the second part of 2008.

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