The complexity of the geopotential model can heavily impact the navigation error in satellites and spacecraft. Geopotential models of the accuracy needed for spaceflight are too complicated for flight computers to run at the rate needed by the navigation system. There are methods to make the geopotential model more efficient while maintaining the needed accuracy, which include: using an efficient method for the full model, propagating to avoid singularities, and running the full model at a low rate and propagating to the needed rate. These methods can decrease the computational requirement enough to be run by the flight computer at the rate required of the navigation system.


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    Title :

    Efficient On-Orbit Singularity-Free Geopotential Estimation


    Contributors:
    J. Amert (author) / E. J. Anzalone (author)

    Publication date :

    2019


    Size :

    16 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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