The NASA Solar Electric Propulsion Technology Applications Readiness Program (NSTAR) will provide a single-string primary propulsion system to NASA's New Millennium Deep Space 1 Mission which will perform comet and asteroid flybys in the years 1999 and 2000. The propulsion system includes a 30-cm diameter ion thruster, a xenon feed system, a power processing unit, and a digital control and interface unit. A total of four engineering model ion thrusters, three breadboard power processors, and a controller have been built, integrated, and tested. An extensive set of development tests has been completed along with thruster design verification tests of 2000 h and 1000 h. An 8000 h Life Demonstration Test is ongoing and has successfully demonstrated more than 6000 h of operation. In situ measurements of accelerator grid wear are consistent with grid lifetimes well in excess of the 12,000 h qualification test requirement. Flight hardware is now being assembled in preparation for integration, functional, and acceptance tests.


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    Titel :

    Development of an Ion Thruster and Power Processor for New Millennium's Deep Space 1 Mission


    Beteiligte:

    Kongress:

    Joint Propulsion Conference ; 1997 ; Seattle, WA, United States


    Erscheinungsdatum :

    01.12.1997


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch