AbstractThis paper summarizes results from two postmission disposal (PMD) parametric analyses based on the high fidelity NASA orbital debris evolutionary model LEGEND. The first analysis includes a non-mitigation reference scenario and four test scenarios, where the mission lifetimes of spacecraft are set to 5, 10, 20, and 30years, respectively, before they are moved to the 25-year decay orbits. The comparison among the five scenarios quantifies how a prolonged spacecraft mission lifetime decreases the effectiveness of the 25-year decay rule in the low Earth orbit region (LEO). The second analysis includes three 25-year decay PMD scenarios where the mission lifetimes of spacecraft are set to 5years but with disposal success rates set to 50%, 70%, and 90%, respectively. It illustrates how the PMD success rate impacts the long-term debris environment. The conclusion of this paper is that a prolonged spacecraft mission lifetime and a lower PMD success rate can have noticeable negative impact on the debris environment in the long run.


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    Titel :

    A LEO satellite postmission disposal study using legend


    Beteiligte:

    Erschienen in:

    Acta Astronautica ; 57 , 2-8 ; 324-329


    Erscheinungsdatum :

    2005-01-01


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    A LEO satellite postmission disposal study using legend

    Liou, J. C. / Johnson, N. L. / International Astronautical Federation et al. | British Library Conference Proceedings | 2005


    A LEO Satellite Postmission Disposal Study using LEGEND

    Liou, J.-C. / Johnson, Nicholas L. | NTRS | 2006