MSTI2 is a small, 164 kg (362 lb), 3-axis stabilized, low-Earth-orbiting satellite whose mission is missile booster tracking. The spacecraft is actuated by 3 reaction wheels and 12 hot gas thrusters. It carries enough fuel for a projected life of 6 months. The sensor complement consists of a Horizon Sensor, a Sun Sensor, low-rate gyros, and a high rate gyro for despin. The total pointing control error allocation is 6 mRad (.34 Deg), and this is while tracking a target on the Earth's surface. This paper describes the Attitude Control System (ACS) algorithms which include the following: attitude acquisition (despin, Sun and Earth acquisition), attitude determination, attitude control, and linear stability analysis.


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    Title :

    Overview of the Miniature Sensor Technology Integration (MSTI) Spacecraft Attitude Control System


    Contributors:
    R. Mcewen (author)

    Publication date :

    1994


    Size :

    15 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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