The James Webb Space Telescope uses the Fine Guidance Controller to achieve pointing accuracy to a millionth of a degree needed for its scientific observations. This closed loop controller includes the Fine Guidance Sensor instrument, the Attitude Control System, and the Fine Steering Mirror, all working together to generate precise attitude updates every 64 ms to stabilize and point the Observatory. It was exercised for the first time with the flight hardware during the cryogenic test at Johnson Space Center. We provide a top level summary of the test, the results, and its performance in preparation for on-orbit operations.


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    Title :

    JWST cryo fine guidance closed loop test results


    Contributors:

    Conference:

    Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave ; 2018 ; Austin,Texas,United States


    Published in:

    Proc. SPIE ; 10698


    Publication date :

    2018-07-12





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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