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 (FGS) instrument, the Attitude Control System (ACS), and the Fine Steering Mirror (FSM), 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.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    JWST Cryo Fine Guidance Closed Loop Test Results


    Contributors:

    Conference:

    SPIE Astronomical Telescopes + Instrumentation ; 2018 ; Austin, TX, United States


    Publication date :

    2018-06-10


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    JWST cryo fine guidance closed loop test results

    Vila , M. Begoña / Lambros, Scott D. / Diaz, David M. et al. | SPIE | 2018


    JWST Cryo Fine Guidance Closed Loop Test Results

    Vila, M. Begona / Lambros, Scott D. / Diaz, David M. et al. | NTRS | 2018


    JWST Fine Guidance Sensor and Near‐Infrared Imager and Slitless Spectrograph

    Maszkiewicz, Michael / Saad, Karl / Rowlands, Neil et al. | Wiley | 2015


    Overview of Design and Validation of the Fine Guidance Sensor Mechanisms for JWST

    Gibson, A.S. / McColgan, A. / Heald, J.C. | British Library Conference Proceedings | 2013


    Closed-Loop Endoatmospheric Ascent Guidance

    Lu, P. | Online Contents | 2003