The Pulsed Plasma Thruster (PPT) Experiment on the Earth Observing One (EO-1) spacecraft has been designed to demonstrate the capability of a new generation PPT to perform spacecraft attitude control. Results from PPT unit level radiated electromagnetic interference (EMI) tests led to concerns about potential interference problems with other spacecraft subsystems. Initial plans to address these concerns included firing the PPT at the spacecraft level both in atmosphere, with special ground support equipment. and in vacuum. During the spacecraft level tests, additional concerns where raised about potential harm to the Advanced Land Imager (ALI). The inadequacy of standard radiated emission test protocol to address pulsed electromagnetic discharges and the lack of resources required to perform compatibility tests between the PPT and an ALI test unit led to changes in the spacecraft level validation plan. An EMI shield box for the PPT was constructed and validated for spacecraft level ambient testing. Spacecraft level vacuum tests of the PPT were deleted. Implementation of the shield box allowed for successful spacecraft level testing of the PPT while eliminating any risk to the ALI. The ALI demonstration will precede the PPT demonstration to eliminate any possible risk of damage of ALI from PPT operation.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Addressing EO-1 Spacecraft Pulsed Plasma Thruster EMI Concerns


    Contributors:
    C. M. Zakrzwski (author) / M. Davis (author) / C. Sarmiento (author)

    Publication date :

    2001


    Size :

    10 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Addressing EO-1 Spacecraft Pulsed Plasma Thruster EMI Concerns

    Zakrzwski, C. M. / Davis, Mitch / Sarmiento, Charles et al. | NTRS | 2001


    Addressing EO-1 spacecraft pulsed plasma thruster EMI concerns

    Zakrzwski, C. / Davis, Mitch / Sarmiento, Charles | AIAA | 2001


    Operational NOVA spacecraft Teflon pulsed plasma thruster system

    EBERT, W. / KOWAL, S. / SLOAN, R. | AIAA | 1989


    A Micro Pulsed Plasma Thruster (PPT) for the "Dawgstar" Spacecraft

    Cassady, R. J. / Hoskins, W. A. / Campbell, M. et al. | British Library Conference Proceedings | 2000


    A micro pulsed plasma thruster (PPT) for the "Dawgstar" spacecraft

    Cassady, R.J. / Hoskins, W.A. / Campbell, M. et al. | IEEE | 2000