This paper discusses the issues associated with correcting GOES spacecraft magnetometer data for the effects of the spacecraft platform. The effects discussed include: varying fields due to moving permanent magnets, stray spacecraft fields resulting form the flow of electric currents, the effects of spacecraft noise, and magnetometer shift due to temperature. Issues associated with the interpretation of on-orbit data are discussed, and approaches to overcoming these issues are offered. The use of ground processing to compensate for spacecraft magnetic effects is analyzed based on the results from on-orbit data and pre-launch test data. The results form analyzing GOES-8 and GOES-9 on-orbit data indicate that the combined effect of the errors associated with torque current ambiguity, torquer corrections, other uncorrected stray fields, results in a root of the sum of the squares error of 0.4 nT. The most significant concern in achieving high accuracy in magnetic measurements of the Earth's magnetic field with these GOES spacecraft was found to be the control of magnetic contamination on the magnetometer boom.


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    Title :

    Compensating GOES-8 and -9 magnetometer data for spacecraft-induced errors


    Contributors:

    Conference:

    GOES-8 and Beyond ; 1996 ; Denver,CO,United States


    Published in:

    Publication date :

    1996-10-18





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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