The multi-angle imaging spectro-radiometer (MISR), to be launched in 1998, is one of five instruments on NASA's first Earth Observing System (EOS) platform. The 3% (1/spl sigma/) absolute radiometric calibration requirement is considered challenging, particularly since it must be maintained through the five-year mission life. The instrument requirements have led to the development of an on-board calibrator (OBC) consisting of diffuse panels and photodiode-based radiometric standards. Although used extensively in national standard laboratories, MISR will be the first in-orbit instrument to utilize Spectralon calibration targets, and the first instrument to establish a radiometric scale in orbit using detector-based standards. The team has adopted the nomenclature high quantum efficiency (HQE) technology to refer to the implementation of 100% internal quantum efficient photodiodes in a trapped configuration. Filtered HQE radiometers are being utilized in the preflight calibration phase to calibrate the flat-field source, they will also be used to characterize solar-reflected light from the diffuse calibration targets during the mission. In addition, radiation-resistant photodiodes will be utilized as part of the OBC.<>


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    Titel :

    State of the art radiometer standards for NASA's Earth Observing System


    Beteiligte:
    Jorquera, C.R. (Autor:in) / Ford, V.G. (Autor:in) / Duval, V.G. (Autor:in) / Bruegge, C.J. (Autor:in) / Korde, R. (Autor:in)


    Erscheinungsdatum :

    01.01.1995


    Format / Umfang :

    858985 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    State of the Art Radiometer Standards for NASA's Earth Observing System

    Jorquera, C. R. / Ford, V. G. / Duval, V. G. et al. | British Library Conference Proceedings | 1995




    NASA's Earth System Observatory - Atmosphere Observing System (AOS)

    S. Braun / J. Yorks / T. Thorsen et al. | NTIS | 2022