We present the characteristics of a star mapper, AMICA, which could be used for determining the pointing direction of external payloads mounted on the International Space Station. AMICA, which is complementary to the GPS attitude determination system provided by the ISS, is a stand alone system able to provide both the pointing direction in the inertial reference frame with arc-sec precision at a 1 Hz rate and the angular orientation of the stellar field with slightly lower precision. The star mapper is derived from the pointing system of the UVSTAR telescope that has flown three times on the Shuttle. We present a description of the AMICA optical and electronics architecture and its functionality. We also give a summary of the key pointing/tracking results obtained during the Shuttle missions. Finally we report on simulations performed to determine the instrument expected precision and performances, including the percentage of recognized stellar fields. AMICA is presently considered for flying in support to the ASI mission SPOrt, onboard an ESA EXPA, in the early utilization of the ISS.


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    Title :

    AMICA, Astro Mapper for Instrument Check of Attitude


    Contributors:

    Conference:

    SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM - 2000 ; 2000 ; Albuquerque, New Mexico (USA)


    Published in:

    AIP Conference Proceedings ; 504 , 1 ; 97-104


    Publication date :

    2000-01-19


    Size :

    8 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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