In early 1981, faced with certain budget cuts, NASA suspended development of a U.S. spacecraft for the ISPM. As conceived, the mission required two spacecraft to monitor the sun while traveling in opposite directions in orbits passing over the poles. The more sophisticated spacecraft was to be built by NASA, the other by the European Space Agency, and investigations from many countries were included on both. Two types of scientific investigations were planned: in situ measurements of particles and fields by instruments on both spacecraft, and visible, X-ray, and extreme ultraviolet imaging by instruments on the NASA spacecraft. The Panel was charged with assessing scientific merits of five ISPM alternatives, including the original mission, along with relative costs of each. While no recommendations were made, the Panel stressed that the original mission represented 'a powerful scientific investigation,' but noted even a single probe would represent 'a pioneering exploration' far out of the ecliptic plane of the sun. Due largely to the high scientific value attributed to imaging capabilities, especially in understanding cause and effect relationships, scaled-down missions without imaging were viewed as unlikely to yield enhanced benefits proportionate to their costs over a single spacecraft.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    The International Solar Polar Mission: A Review and Assessment of Options


    Beteiligte:
    A. E. Puckett (Autor:in)

    Erscheinungsdatum :

    1981


    Format / Umfang :

    35 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Solar Pioneer Mission Options

    Kerridge, S. R. / Evans, M. / Tsurutani, B. | NTRS | 1993