Design and In-Orbit Thermal Performance of the Passive Radiant Cooler On-Board INSAT-2A ISRO Satellite Centre

Format:

Conference/Event

Author/Creator:

Prakas, C. K. Krishna, author.

Conference Name:

International Conference On Environmental Systems (1994-06-20 : Friedrichshafen, Germany)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1994

Summary:

INSAT-2A spacecraft carries on-board a Very High Resolution Radiometer (VHRR) as one of the major payloads for the purpose of meteorological observations. The thermal infrared (IR) detector of the Radiometer requires cooling to cryogenic temperature for its operation at any of the set points in the range of 105 K to 115 K for optimum performance. A passive radiant cooler has been designed and realised indigenously to meet this requirement. A computer oriented mathematical model has been developed which simulates the on-orbit thermal environment and predicts the performance of the cooler for various sun illumination conditions. INSAT-2A spacecraft has completed more than one year of its successful operation on-orbit now. It has been observed that a minimum patch control power margin of 4.7 mW exists for beginning of life (BOL) condition id est 5th August, 1992

Notes:

Vendor supplied data

Publisher Number:

941479

Access Restriction:

Restricted for use by site license