A rather broad survey is reported of the Venus radar orbiter possibilities within the period 1983-1990. Minimum mission imaging requirements have been set by comparison with the improving capabilities of earth based radar systems and an examination of earth airborne radar imaging. This has led to a requirement for 80 percent coverage at a resolution of 100 m. A first main conclusion is that only the Shuttle-Centaur launch system would be capable of establishing a circular orbit under all possible launch conditions. Thus, orbit eccentricity has been introduced as a parameter throughout this presentation. An examination of typical radar designs has led to upper and lower limits on swath width of 100 and 50 km. A lower eccentricity of 0.2 was set by considering the current Viking propulsion system. An examination of solar perturbations indicates that orbit maintenance problems increase rapidly above an eccentricity of 0.5. (Author)


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    Titel :

    A Preliminary Analysis of a Radar-Mapping Mission to Venus


    Beteiligte:
    J. S. Mackay (Autor:in) / L. E. Edsinger (Autor:in) / L. C. Evans (Autor:in) / L. A. Manning (Autor:in) / K. F. Sinclair (Autor:in)

    Erscheinungsdatum :

    1973


    Format / Umfang :

    69 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    A preliminary analysis of a radar-mapping mission to Venus

    Mackay, J. S. / Edsinger, L. E. / Evans, L. C. et al. | NTRS | 1973


    Venus Orbital Imaging Radar mission analysis

    Nock, K. T. / Bender, D. F. | NTRS | 1977


    The venus radar mapper mission

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    The Venus radar mapper mission

    Dallas, S. S. | NTRS | 1984