The formulation of Level C requirements for guidance software was reported. Requirements for a PEG supervisor which controls all input/output interfaces with other processors and determines which PEG mode is to be utilized were studied in detail. A description of the two guidance modes for which Level C requirements have been formulated was presented. Functions required for proper execution of the guidance software were defined. The requirements for a navigation function that is used in the prediction logic of PEG mode 4 were discussed. It is concluded that this function is extracted from the current navigation FSSR. (Author)


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    Title :

    Mission Planning, Mission Analysis and Software Formulation. Level C Requirements for the Shuttle Mission Control Center Orbital Guidance Software


    Contributors:

    Publication date :

    1976


    Size :

    92 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English