Earth-based orbit determination capability for SEP space-craft in multistation tracking and in thrust subsystem error modeling is described. Five different tracking strategies are applied to a 15 day segment of an Encke rendezvous mission. Both optimal and suboptimal orbit determination performance are determined for a wide range of process noise parameter values. The multi-station tracking techniques are found to be extremely effective, reducing orbit determination errors by orders of magnitude over that obtained with conventional single-station tracking. Explicitly differenced multistation data (QVLBI) is found to be least sensitive to gross modeling errors, but if a reasonably good process noise model is available, explicit differencing is not required. (Author)


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    Title :

    Orbit Determination for Low-Thrust Spacecraft Concepts and Analysis


    Contributors:

    Publication date :

    1973


    Size :

    15 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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