Abstract A renewed interest in the deployment of tethered satellites has motivated recent studies addressing the problem of the accurate identification, orbit determination, and motion prediction of a tethered satellite system (TSS). If the motion of a TSS is not analyzed accurately, a tethered satellite could be incorrectly identified as an object on a re-entry trajectory. Classical orbit determination methods do not possess the capabilities to determine whether or not a tracked satellite is part of a TSS. The problem of identification is compounded by the fact that this process must be performed quickly using a short arc of observational data. Once this “quick-look” identification is achieved, it is also important to have the capabilities to precisely determine the orbit of the TSS for future tracking and orbit prediction purposes. This paper presents a three-stage methodology which has been developed to address the accurate identification, orbit determination, and long-term orbit prediction of a TSS. The first stage uses recently developed preliminary orbit determination (POD) methods which have the capability to determine whether an observed satellite is part of a TSS or not using only a few observations. The second stage utilizes ridge-type estimation methods, which have been shown to be capable of obtaining a more accurate state of the observed satellite using a short arc of observational data. The third-stage analysis utilizes an enhanced tether satellite dynamical model suited for the long-term orbit determination and motion prediction. The effectiveness of this proposed three-stage method is demonstrated using both simulated tether satellite data and actual data obtained from the Tether Physics Survivability (TiPS) Experiment.


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    Titel :

    Quick-Look Identification and Orbit Determination of a Tethered Satellite


    Beteiligte:
    Cicci, D. A. (Autor:in) / Cochran, J. E. (Autor:in) / Qualls, C. (Autor:in) / Lovell, T. A. (Autor:in)


    Erscheinungsdatum :

    2002




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.60 Raumfahrttechnik
    Lokalklassifikation TIB:    770/7040




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