Operational and historic data for 350 spacecraft from 52 U.S. space programs were analyzed for on-orbit reliability. Failure rates estimates are made for on-orbit operation of spacecraft subsystems, components, and piece parts, as well as estimates of failure probability for the same elements during launch. Confidence intervals for both parameters are also given. The results indicate that: (1) the success of spacecraft operation is only slightly affected by most reported incidents of anomalous behavior; (2) the occurrence of the majority of anomalous incidents could have been prevented piror to launch; (3) no detrimental effect of spacecraft dormancy is evident; (4) cycled components in general are not demonstrably less reliable than uncycled components; and (5) application of product assurance elements is conductive to spacecraft success.


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    Title :

    On-Orbit Spacecraft Reliability


    Contributors:
    C. Bloomquist (author) / D. Demars (author) / W. Graham (author) / P. Henmi (author)

    Publication date :

    1978


    Size :

    426 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    On-orbit spacecraft reliability

    Bloomquist, C. / Demars, D. / Graham, W. et al. | NTRS | 1978




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