Accurate knowledge on density-altitude and pressure-altitude profiles of Mars and Venus can be determined through use of small, lightweight, spherical probe injected into planetary atmosphere either from flyby spacecraft prior to planetary encounter or from planetary orbiter prior to orbit injection; its entry flight-path angle and its velocity history before and after communications blackout can be obtained through two-way doppler measurement by Deep Space Instrumentation Facility (DSIF); system considerations and development of theory for conversion of DSIF data into density altitude and pressure-altitude profiles are presented.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Planetary atmospheric determination utilizing semipassive probe


    Additional title:

    J Spacecraft Rockets


    Contributors:
    Holman, F.S. (author) / Kennet, H. (author)

    Published in:

    Publication date :

    1966


    Size :

    8 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :




    A Semipassive Seat Belt System

    Peck, Derek P. | SAE Technical Papers | 1972


    Optimized Performance of a Semipassive Aerodynamic Controller

    V.J. MODI AND S.K. SHRASTAVA | AIAA | 1973