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.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

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


    Contributors:


    Publication date :

    1984-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    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