Landsat 7 is part of NASA's Earth Science Enterprise (ESE). The ESE is committed to developing an understanding of the total Earth system, the effects of natural and human-induced changes on the global environment, and how natural processes affect humans and how humans affect them. The Landsat 7 satellite consists of the spacecraft bus which was provided under a NASA contract with Lockheed Martin Missiles and Space in Philadelphia, PA, and the Enhanced Thematic Mapper-Plus (ETM+) instrument, procured under a NASA contract with Raytheon Santa Barbara Remote Sensing, in Santa Barbara, CA. The Landsat 7 Attitude Control and Determination System (ACDS) provides many essential functions for the operation of the spacecraft bus and for ETM+. The ACDS maintains the required attitude and orbit at the degree of accuracy necessary for power generation, command and telemetry, thermal balance, image acquisition, Gimbaled X-Band Antenna (GXA) pointing and data for image post-processing. Descriptions of the Landsat 7 mission and the ACDS modes and requirements are presented. A brief summary of significant events of the on-orbit initialization and validation period are provided. Finally, the Landsat 7 product generation system is described and the impact that the ACDS performance has on the ground based image processing system is explored.


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    Titel :

    On-Orbit ACDS Performance of the Landsat 7 Spacecraft


    Beteiligte:
    P. Sabelhaus (Autor:in) / J. Bolek (Autor:in) / S. Scott (Autor:in) / E. Holmes (Autor:in) / J. R. O'Donnell (Autor:in)

    Erscheinungsdatum :

    2001


    Format / Umfang :

    12 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    On-Orbit ACDS Performance of the Landsat 7 Spacecraft

    Sabelhaus, Phillip / Bolek, Joseph / Scott, Steve et al. | NTRS | 2001


    On-Orbit ACDS Performance of the Landsat 7 Spacecraft (AAS 01-077)

    Sabelhaus, P. / Bolek, J. / Scott, S. et al. | British Library Conference Proceedings | 2001