The self-contamination of the SIRIO 2 spacecraft was studied using a computer program which models contaminant sources and contaminant interaction with spacecraft surfaces. The SIRIO 2 spacecraft is equipped with laser reflectors for clock-sychronization; these reflectors are contaminant sensitive. Computer prediction results are seen as inconclusive, mainly due to uncertainty in physical values for outgassing (flux in function of time; surface redeposition rate). Nonetheless, a contamination problem is identified relative to satellite venting ports locates the reflectors.


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    Title :

    Sirio 2: Modeling Contamination of the Lasso Reflector. Preliminary Study Etude de Modelisation de la Contamination du Reflecteur Lasso


    Contributors:
    B. Tatry (author)

    Publication date :

    1980


    Size :

    26 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English