The International Space Station has onboard two Aerojet Rocketdyne developed plasma contactor units that perform the function of charge control. The plasma contactor units contain NASA Glenn Research Center developed hollow cathode assemblies. NASA Glenn Research Center monitors the on-orbit operation of the flight hollow cathode assemblies. As of May 31, 2013, HCA.001-F has been ignited and operated 123 times and has accumulated 8072 hours of operation, whereas, HCA.003-F has been ignited and operated 112 times and has accumulated 9664 hours of operation. Monitored hollow cathode ignition times and anode voltage magnitudes indicate that they continue to operate nominally.


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    Title :

    Operational Status of the International Space Station Plasma Contactor Hollow Cathode Assemblies July 2001 to May 2013


    Contributors:
    H. Kamhawi (author) / J. T. Yim (author) / M. J. Patterson (author) / P. J. Dalton (author)

    Publication date :

    2013


    Size :

    8 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English








    Update on the Operational Status of the International Space Station Plasma Contactor Hollow Cathode Assemblies AIAA Paper

    Kamhawi, H. / Patterson, M. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2007