Preliminary mission analyses for a proposed 1980 slow flyby (7-9 km/s) of comet Encke are presented. Among the topics covered are science objectives, Encke's physical activity and ephemeris accuracy, trajectory and launch-window analysis, terminal guidance, and spacecraft concepts. The nominal mission plan calls for a near-perihelion intercept with two spacecraft launched on a single launch vehicle. Both spacecraft will arrive at the same time, one passing within 500 km from Encke's nucleus on its sunward side, the other cutting through the tail region. By applying a small propulsive correction about three weeks after the encounter, it is possible to retarget both spacecraft for a second Encke intercept in 1984. The potential science return from the ballistic slow flyby is compared with other proposed mission modes for the 1980 Encke flyby mission, including the widely advocated slow flyby using solar-electric propulsion. It is shown that the ballistic slow flyby is superior in every respect. (Author)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Mission Design for a Ballistic Slow Flyby Comet Encke 1980


    Beteiligte:
    R. W. Farquhar (Autor:in) / D. K. Mccarthy (Autor:in) / D. P. Muhonen (Autor:in) / D. K. Yeomans (Autor:in)

    Erscheinungsdatum :

    1974


    Format / Umfang :

    37 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Mission design for a ballistic slow flyby Comet Encke 1980

    Farquhar, R. W. / Mccarthy, D. K. / Muhonen, D. P. et al. | NTRS | 1974


    Mission design for a ballistic slow-flyby of comet Encke 1980

    FARQUHAR, R. / MCCARTHY, D. / MUHONEN, D. et al. | AIAA | 1974


    Mission design for a ballistic slow-flyby of comet Encke 1980

    Farquhar, R. W. / Mccarthy, D. K. / Muhonen, D. P. et al. | NTRS | 1974


    Terminal navigation analysis for the 1980 comet Encke slow flyby mission

    JACOBSON, R. / MCDANELL, J. / RINKER, G. | AIAA | 1973


    Terminal Navigation Analysis for the 1980 Comet Encke Slow Flyby Mission

    ROBERT A. JACOBSON / JAMES P. MCDANELL / AND GEORGE C. RINKER | AIAA | 1974