Onboard orbital navigation system reduces dependence on Earth-tosatellite links. Report discusses mathematics of proposed navigation subsystem that keeps geostationary satellite in proper orbit without ground control. Subsystem uses data from Earth and Sun sensors to activate thrusters for station-keeping maneuvers. With sensors already on satellites for determining attitude, subsystem maintains satellite within 3 degrees of specified equatorial longitude for up to 6 months. With more accurate sensors, subsystem able to maintain orbit within 0.1 degrees.


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    Title :

    Autonomous Orbital Calculation for Satellites


    Contributors:
    Mease, K. D. (author) / Ryne, M. S. (author) / Wood, L. J. (author)

    Published in:

    Publication date :

    1986-05-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English





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