Accommodation of the GRADIO instrument, composed of eight three-axis ultrasensitive accelerometers located at the corners of a cubic structure on a Geopotential Research Mission spacecraft is discussed. A two-stage DISCOS configuration with a magnetically suspended inner-stage; and a very fine control of the Earth pointed inner-stage taking into account the GRADIO accelerometer measurements in order to limit the variations of the angular accelerations are required. For diagonal tensor components and an averaging time of 4 sec, the overall goal is 0.1 Eotvos at 160 km altitude.


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    Title :

    Gradiometer accommodation on board a drag-free satellite


    Contributors:
    Touboul, P. (author)


    Publication date :

    1987-10-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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