Position-velocity ephemerides of Venus and Earth- Moon system have been generated using special perturbation methods in which conditions at initial epoch are determined so that subsequent positions are in best agreement with Newcomb ephemerides in least-squares sense; ephemerides so obtained made possible 1961 Jet Propulsion Laboratory (JPL) radar observations of Venus and were used in determination of published JPL value of astronomical unit; success of method led to development of ephemeris library system.


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    Titel :

    Planetary position-velocity ephemerides obtained by special perturbations


    Weitere Titelangaben:

    AIAA J


    Beteiligte:
    Peabody, P.R. (Autor:in) / Block, N. (Autor:in)

    Erschienen in:

    AIAA Journal ; 1 , n 12


    Erscheinungsdatum :

    1963


    Format / Umfang :

    4 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :