Ozone Monitoring Instrument flight-model on-ground and in-flight calibration

Details Ozone Monitoring Instrument flight-model on-ground and in-flight calibration Ozone Monitoring Instrument flight-model on-ground and in-flight calibration

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.554...89d&link_type=abstract

In: Proceedings of the 5th International Conference on Space Optics (ICSO 2004), 30 March - 2 April 2004, Toulouse, France. Ed.:

Physics

Optics

1

Calibration, Remote Sensing, Ultraviolet-Visible, Imaging Spectrograph

Scientific paper

The Ozone Monitoring Instrument (OMI) is an ultraviolet-visible imaging spectrograph that uses two-dimensional CCD detectors to register both the spectrum and the swath perpendicular to the flight direction. This allows having a 114 degrees wide swath combined with an unprecedented small ground pixel (nominally 13×24 km2), which in turn enables global daily ground coverage with high spatial resolution. The OMI instrument is part of NASA's EOS-AURA satellite, which will be launched in the second half of 2004. The on-ground calibration of the instrument was performed in 2002. This paper presents and discusses results for a number of selected topics from the on-ground calibration: the radiometric calibration, the spectral calibration and spectral slit function calibration. A new method for accurately calibrating spectral slit functions, based on an echelle grating optical stimulus, is discussed. The in-flight calibration and trend monitoring approach and facilities are discussed.

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