A description of the orbiter science instruments is presented and the chronology of the two Viking missions is reviewed. The design of the Viking orbiter spacecraft is discussed, taking into account the propulsion subsystem, the attitude control subsystem, the planetary scan platform, aspects of command processing, problems of instrument operation and data processing, and data quantity limitations. Details concerning the Viking orbits and the visibility of the planet are also considered and the future of the Viking orbiter missions is evaluated. If the orbiters continue to perform well, all the orbiter science investigations will continue to acquire data for another year and perhaps somewhat longer.


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    Title :

    The Missions of the Viking Orbiters


    Contributors:

    Published in:

    Publication date :

    1977-09-30


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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