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Operational Status of the International Space Station Plasma Contactor Hollow Cathode Assemblies July 2001 to May 2013The 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.
Document ID
20140009580
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Kamhawi, Hani (NASA Glenn Research Center Cleveland, OH, United States)
Yim, John T. (NASA Glenn Research Center Cleveland, OH, United States)
Patterson, Michael J. (NASA Glenn Research Center Cleveland, OH, United States)
Dalton, Penni J. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
July 18, 2014
Publication Date
July 15, 2013
Subject Category
Plasma Physics
Spacecraft Instrumentation And Astrionics
Report/Patent Number
GRC-E-DAA-TN10189
E-18776
NASA/TM-2014-216579
Meeting Information
Meeting: Joint Propulsion Conference and Exhibit
Location: San Jose, CA
Country: United States
Start Date: July 15, 2013
End Date: July 17, 2013
Sponsors: American Society of Mechanical Engineers, American Inst. of Aeronautics and Astronautics, Society of Automotive Engineers, Inc., American Society for Electrical Engineers
Funding Number(s)
WBS: WBS 401769.06.03.02.02.10
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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