The Venus Radar Mapper spacecraft is to be launched in April 1988. After a 117-day cruise phase to the planet Venus, the spacecraft will map the surface for 243 days. This paper describes the design of the electrical power subsystem for the spacecraft. The combination of spacecraft mapping orientation, solar occultation periods, attitude control calibration periods, data playback periods, and the use of a one degree-of-freedom solar array results in defining three energy balance situations for array sizing and depth of discharge on the NiCd batteries. The design is also affected by the 117-day cruise phase as solar intensity varies from 1.0 sun near Earth to 1.89 suns at Venus.


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    Title :

    Venus radar mapper spacecraft power system design


    Additional title:

    Auslegung des Energieversorgungssystems der Raumsonde zur Venus-Kartierung mittels Radar


    Contributors:


    Publication date :

    1984


    Size :

    4 Seiten, 4 Bilder, 4 Tabellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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