The National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC) Flight Dynamics Division (FDD) is pursuing the application of Global Positioning System (GPS) technology to improve the accuracy and economy of spacecraft navigation. High-accuracy autonomous navigation algorithms are being flight qualified in conjunction with GSFC's GPS Attitude Determination Flyer (GADFLY) experiment on the Small Satellite Technology Initiative (SSTI) Lewis spacecraft, which is scheduled for launch in 1997. Preflight performance assessments indicate that these algorithms can provide a real-time total position accuracy of better than 10 meters (1 sigma) and velocity accuracy of better than 0.01 meter per second (1 sigma), with selective availability at typical levels. This accuracy is projected to improve to the 2-meter level if corrections to be provided by the GPS Wide Area Augmentation System (WAAS) are included.


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    Titel :

    Autonomous Navigation of the SSTI/Lewis Spacecraft Using the Global Positioning System (GPS)


    Beteiligte:
    Hart, R. C. (Autor:in) / Long, A. C. (Autor:in) / Lee, T. (Autor:in)


    Erscheinungsdatum :

    1997-05-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Autonomous Navigation of the SSTI/Lewis Spacecraft Using the Global Positioning System (GPS)

    Hart, R. / Long, A. / Lee, T. et al. | British Library Conference Proceedings | 1997


    SSTI-Lewis Spacecraft Program

    Watkins, M. / Reppucci, G. | British Library Conference Proceedings | 1996



    SSTI-Lewis Spacecraft Nickel-Hydrogen Battery

    Tobias, R. F. / United States; National Aeronautics and Space Administration; Aerospace Flight Battery Systems Program | British Library Conference Proceedings | 1997