The Hughes SCREENS (Space Craft Response to Environments of Space) technique was applied to generic spin and 3-axis stabilized spacecraft models. It involved the NASCAP modeling for surface charging and lumped element modeling for transients coupling into a spacecraft. A differential voltage between antenna and spun shelf of approx. 400 V and current of 12 A resulted from discharge at antenna for the spinner and approx. 3 kv and 0.3 A from a discharge at solar panels for the 3-axis stabilized Spacecraft. A typical interface circuit response was analyzed to show that the transients would couple into the Spacecraft System through ground points, which are most vulnerable. A compilation and review was performed on 15 years of available data from electron and ion current collection phenomena. Empirical models were developed to match data and compared with flight data of Pix-1 and Pix-2 mission. It was found that large space power systems would float negative and discharge if operated at or above 300 V. Several recommendations are given to improve the models and to apply them to large space systems.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Environmentally-Induced Discharge Transient Coupling to Spacecraft


    Contributors:
    R. Viswanathan (author) / G. Barbay (author) / N. J. Stevens (author)

    Publication date :

    1985


    Size :

    92 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Environmentally-induced discharge transient coupling to spacecraft

    Viswanathan, R. / Barbay, G. / Stevens, N. J. | NTRS | 1985


    Ènvironmentally Induced Spacecraft Anomalies

    Lauriente, M. | Online Contents | 1994


    Environmentally Induced Spacecraft Anomalies

    M. Lauriente / J. Gaudet | AIAA | 1994



    Analysis of Environmentally Induced Spacecraft Anomalies

    Vampola, A.L. | Online Contents | 1994