A time-dependent model of the Martian atmosphere suitable for calculation of long-term aerodynamic effects on low altitude satellites is presented. The atmospheric model is both position dependent, through latitude and longitude effects, and time dependent. The time dependency includes diurnal and seasonal effects, effects of annual motion, long and short term solar activity effects, and periodic dust storm effects. Nine constituent gases are included in the model. Uncertainties in exospheric temperature, turbidity, and turbopause altitude are used to produce bounds on the expected density. A computer model - a Fortran subroutine which, when given the Julian date, Cartesian position of the sun and the spacecraft in aerocentric coordinates, returns the local values of mass density, temperature, scale height, and upper and lower bounds on the mass density is presented.


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    Titel :

    Time-dependent model of the Martian atmosphere for use in orbit lifetime and sustenance studies


    Beteiligte:
    Culp, R. D. (Autor:in) / Stewart, A. I. (Autor:in)


    Erscheinungsdatum :

    01.09.1984



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Long-lifetime Martian orbit selection using a time-dependent model of the Martian atmosphere

    Culp, R. D. / Stewart, A. I. / Chow, C.-C. et al. | NTRS | 1984



    Topex orbit sustenance maneuver design

    KECHICHIAN, J. | AIAA | 1982


    Satellite orbit perturbations in a dusty Martian atmosphere

    Haranas, Ioannis | Online Contents | 2012


    Martian Lower Atmosphere

    R. M. Haberle | NTIS | 1992