Degradation of passive thermal control systems in space is a matter of serious concern and has been observed in many missions. The authors report the performance of the passive thermal control systems of the Infrared Astronomical Satellite (IRAS) over a period of three years. An exterior temperature of 200 K and a sunshade temperature of approximately 100 K were maintained over this period without significant degradation. The temperature of the telescope contained in the IRAS cryostat was also observed for two years after expenditure of the helium cryogen. It remained at 100 K with no degradation, Space Cryogenics Workshop, 22-23 June 1987, Madison, WI, USA


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    Title :

    Long-term performance of the passive thermal control systems of the IRAS spacecraft


    Additional title:

    Langzeitverhalten des passiven thermischen Regelungssystems des IRAS-Raumfahrzeugs


    Contributors:
    Mason, P.V. (author)

    Published in:

    Cryogenics ; 28 , 2 ; 137-141


    Publication date :

    1988


    Size :

    5 Seiten, 3 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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