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Proceedings Paper

Tracking MODIS gain change on-orbit by relating it to SRCA lamp parameters
Author(s): Harry E. Montgomery; Nianzeng Che; Jeff Bowser
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Paper Abstract

This paper addresses the methodology and algorithm for using the Spectro-Radiometric Calibration Assembly (SRCA) lamp electrical parameters to track its output band radiance change. This allows the use of the SRCA to track MODurate resolution Imaging Spectroradiometer (MODIS) detector gain variation at different orbit positions because the MODIS dn change is attributed to its gain change after subtracting the SRCA output radiance change itself. Pre-launch test data show that using lamp current as a parameter is valid. Orbit data prove that the approach is valid for longer periods of time for all Solar Reflective Bands (SRBs). Data indicate that the MODIS has undetectable gain change at different orbit positions.

Paper Details

Date Published: 15 November 2000
PDF: 8 pages
Proc. SPIE 4135, Earth Observing Systems V, (15 November 2000); doi: 10.1117/12.494247
Show Author Affiliations
Harry E. Montgomery, NASA Goddard Space Flight Ctr. (United States)
Nianzeng Che, Swales Aerospace (United States)
Jeff Bowser, Raytheon ITSS (United States)

Published in SPIE Proceedings Vol. 4135:
Earth Observing Systems V
William L. Barnes, Editor(s)

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