This paper describes the radiation-induced degradation of silicon-based solar arrays of the SESAT and the YAMAL commercial telecommunications spacecraft, operating in the geostationary Earth orbit since April 18, 2000 and September 6, 1999 respectively. A comparative study of the predicted and the observed behavior in the current generated by their photovoltaic arrays contained in this paper has revealed a significant impact of the large solar flares on their performance in 2000 - 2001. Basing on such data as duration, scale and spectral composition of the proton fluence, registered during these solar flares, an assessment of the radiation-induced degradation of the photovoltaic arrays was made. Results of this work were corroborated by the downlinked telemetry data, with which monitoring of changes in the current generated by the solar arrays was performed.


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    Titel :

    Analysis of geostationary spacecraft solar arrays degradation from solar proton flares


    Weitere Titelangaben:

    Analyse der Sonnenbatterie-Degradation bei geostationären Satelliten durch solare Protonenstrahlungseruptionen


    Beteiligte:
    Grigorieva, G.M. (Autor:in) / Kagan, M.B. (Autor:in) / Letin, V.A. (Autor:in) / Nadorov, V.P. (Autor:in) / Evenov, G.D. (Autor:in) / Hartov, V.V. (Autor:in) / Maximov, I.A. (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    6 Seiten, 2 Bilder, 4 Tabellen, 9 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Analysis of Geostationary Spacecraft Solar Arrays Degradation from Solar Proton Flares

    Grigorieva, G. M. / Kagan, M. B. / Letin, V. A. et al. | British Library Conference Proceedings | 2002


    Modeling solar proton access to geostationary spacecraft with geomagnetic cutoffs

    Kress, B.T. / Rodriguez, J.V. / Mazur, J.E. et al. | Elsevier | 2013



    Large solar proton events and geosynchronous communication spacecraft solar arrays

    LANZEROTTI, L. J. / MAURER, D. W. / SAUER, H. H. et al. | AIAA | 1991


    Solar proton events of 1989 - Effects on spacecraft solar arrays

    MARVIN, D. C. / GORNEY, D. J. | AIAA | 1991