27 January 1997 Characterization and calibration results from the Visible and Infrared Scanner (VIRS) for the Tropical Rainfall Measuring Mission (TRMM)
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Abstract
The visible and infrared scanner (VIRS), one of three primary sensors on the Tropical Rainfall Measuring Mission (TRMM), has completed its development and test phase at Santa Barbara Remote Sensing and has ben delivered to the Goddard Space Flight Center where it has been integrated on the TRMM spacecraft. VIRS is a five band imaging radiometer with bandpasses similar to those of the Advanced Very High Resolution Radiometers that have flown on the NOAA series of satellites for the last 18 years. VIRS will can a +/- 45 degree swath with a 2.11 kilometer IFOV at nadir from the non-sun-synchronous 350 kilometer TRMM orbit. All five bands will be cooled to 107K at mission start using a passive radiative cooler. The two reflected solar bands will be calibrated on orbit using a solar diffuser. This paper discusses ground calibration and characterization results and proposed post-launch radiometric calibration procedures for the VIRS data.
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William L. Barnes, William L. Barnes, Robert A. Barnes, Robert A. Barnes, Alan W. Holmes, Alan W. Holmes, } "Characterization and calibration results from the Visible and Infrared Scanner (VIRS) for the Tropical Rainfall Measuring Mission (TRMM)", Proc. SPIE 2957, Advanced and Next-Generation Satellites II, (27 January 1997); doi: 10.1117/12.265441; https://doi.org/10.1117/12.265441
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