The attitude determination algorithm developed for the ISO (Infrared Space Observatory) spacecraft ground control, to be used for attitude initialization during Launch and Early Operations Phase (LEOP), and for any later attitude updates required during the mission, is described. The attitude determination task contains a star pattern recognition algorithm, using a star map generated by the spacecraft Star Tracker, and requires no a priori attitude estimates. Derivation of the algorithms for the attitude determination task is given. The practical implementation of the task within the overall ground control segment, where a workstation running Open Windows is employed, is described.


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    Title :

    ISO Ground Attitude Determination During Operations


    Contributors:

    Publication date :

    1991


    Size :

    6 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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