This paper presents an overall technical description of the on-board attitude determination system for The Ocean Topography Experiment (Topex) satellite. The stellar-inertial attitude determination system being designed for the Topex satellite utilizes data from a three-axis NASA Standard DRIRU-II as well as data from an Advanced Star Tracer (ASTRA) and a Digital Fine Sun Sensor (DFSS). This system is a modified version of the baseline Multimission Modular Spacecraft (MMS) concept used on the Landsat missions. Extensive simulation and analysis of the MMS attitude determination approach was performed to verify suitability for the Topex application. The modifications to this baseline attitude determination scheme were identified to satisfy the unique Topex mission requirements.


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    Title :

    On-board attitude determination for the Topex satellite


    Contributors:
    Dennehy, C. J. (author) / Ha, K. (author) / Welch, R. V. (author) / Kia, T. (author)

    Publication date :

    1989-08-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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