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29 September 2017 Positional dependence of the SNPP VIIRS SD BRDF degradation factor
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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.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ning Lei, Xuexia Chen, Tiejun Chang, and Xiaoxiong Xiong "Positional dependence of the SNPP VIIRS SD BRDF degradation factor", Proc. SPIE 10423, Sensors, Systems, and Next-Generation Satellites XXI, 1042317 (29 September 2017);

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