SMAP (Soil Moisture Active and Passive) is a proposed scientific mission that would provide global mapping of Earth soil moisture and freeze/thaw state. The proposed SMAP Observatory would accommodate two primary Instruments - L-band (1.26 GHz) Radar and L-band (1.4 GHz) Radiometer on one spacecraft. Both instruments would share a 14.6 RPM spinning Antenna System with a 6m diameter deployable Reflector and a common RF Feed. The key challenge for the Observatory configuration is in meeting the needs of the science and the supporting subsystems (many of which have stringent demands as well) and ensuring that the spacecraft could meet all operational, pointing, environmental, and launch vehicle requirements. This paper describes the continuing evolution of the proposed SMAP Observatory configuration, the challenges of balancing the conflicting requirements, and the major configuration driving decisions and compromises.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    SMAP Observatory concept — A configuration of compromises


    Contributors:
    Eremenko, A (author) / Kastner, J (author)

    Published in:

    Publication date :

    2011-03-01


    Size :

    4241621 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    NASA's SMAP Observatory

    Kellogg, K. / Thurman, S. / Edelstein, W. et al. | NTRS | 2013


    NASA's Soil Moisture Active Passive (SMAP) observatory

    Kellogg, K. / Thurman, S. / Edelstein, W. et al. | IEEE | 2013


    NASA's Soil Moisture Active Passive (SMAP) Observatory

    Kellogg, Kent / Thurman, Sam / Edelstein, Wendy et al. | NTRS | 2013



    SMAP Observatory Antenna Pointing Errors Due to Dynamic Sources

    Nayeri, Reza D. / Alvarez, Oscar S. | NTRS | 2013