The characteristics and capabilities of solar electric propulsion for performing orbiter missions at the planets Uranus and Neptune are described. An assessment of the scientific objectives and instrumentation requirements, their relation to orbit size selection, and parametric analysis of solar electric propulsion trajectory/payload performance are included. Utilizing the Titan 3D/Centaur launch vehicle, minimum flight times of about 3400 days to Uranus and 5300 days to Neptune are required to place the TOPS spacecraft into the nominal orbits. It has been shown that solar electric propulsion can be used effectively to accomplish elliptical orbiter missions at Uranus and Neptune. However, because of the very long flight time required, these mission profiles are not too attractive. Previous studies have shown that nuclear electric propulsion, if developed, would allow much faster trips; 5 years to Uranus and 8 years to Neptune. (Author)


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    Titel :

    Uranus and Neptune Orbiter Missions Via Solar Electric Propulsion


    Beteiligte:
    A. Friedlander (Autor:in) / R. Brandenburg (Autor:in)

    Erscheinungsdatum :

    1971


    Format / Umfang :

    82 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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