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Proceedings Paper

Positional dependence of the SNPP VIIRS SD BRDF degradation factor
Author(s): Ning Lei; Xuexia Chen; Tiejun Chang; Xiaoxiong Xiong
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Paper Abstract

The Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the Suomi National Polar-orbiting Partnership (SNPP) satellite is a passive scanning radiometer and an imager. The VIIRS regularly performs on-orbit radiometric calibration of its reflective solar bands (RSBs) through observing an onboard sunlit solar diffuser (SD). The reflectance of the SD changes over time and the change is denoted as the SD bidirectional reflectance distribution function degradation factor. The degradation factor, measured by an onboard solar diffuser stability monitor, has been shown to be both incident sunlight and outgoing direction dependent. In this Proceeding, we investigate the factor’s dependence on SD position. We develop a model to relate the SD degradation factor with the amount of solar exposure. We use Earth measurements to evaluate the effectiveness of the model.

Paper Details

Date Published: 29 September 2017
PDF: 12 pages
Proc. SPIE 10423, Sensors, Systems, and Next-Generation Satellites XXI, 1042317 (29 September 2017); doi: 10.1117/12.2277715
Show Author Affiliations
Ning Lei, Science Systems and Applications, Inc. (United States)
Xuexia Chen, Science Systems and Applications, Inc. (United States)
Tiejun Chang, Science Systems and Applications, Inc. (United States)
Xiaoxiong Xiong, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 10423:
Sensors, Systems, and Next-Generation Satellites XXI
Steven P. Neeck; Jean-Loup Bézy; Toshiyoshi Kimura, Editor(s)

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