The vacuum environment in the wake region of presently planned large space vehicles is calculated using simplified models of the particle fluxes from the various sources. The fluxes which are calculated come directly from the ambient, are due to ambient particles backscattered from spacecraft emissions, and are due to self scattering of spacecraft emissions. Using nominal values for the surface emissions, the flux density environment behind a large unmanned craft at 550 km altitude is calculated. Calculations indicate that the flux density on a wake vacuum experiment conducted in the vicinity of the shuttle is substantially greater than that behind unmanned craft.


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    Title :

    Preliminary Assessment of the Vacuum Environment in the Wake of Large Space Vehicles


    Contributors:
    W. A. Oran (author) / R. J. Naumann (author)

    Publication date :

    1977


    Size :

    34 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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