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13 September 2011 Results of MODIS band-to-band registration characterization using on-orbit lunar observations
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Abstract
Since launch, lunar observations have been made on a regular basis for both Terra and Aqua MODIS and used in a number of applications for their on-orbit calibration and characterization, including radiometric stability monitoring, band-to-band registration (BBR) characterization, optical leak and electronic cross-talk characterization, and calibration inter-comparisons with others sensors. MODIS has 36 spectral bands, consisting of a total of 490 individual detectors, which are located on four different focal plane assemblies (FPAs). This paper focuses on the use of MODIS lunar observations for its on-orbit BBR characterization in both along-scan and along-track directions. In addition to BBR, study of detector-to-detector registration (DDR) through the use of lunar observations is also discussed. The yearly averaged BBR results developed from MODIS lunar observations are presented in this paper and compared with that derived from its on-board calibrator (OBC). In general, results from different approaches agree well. Results show that on-orbit changes in BBR have been very small for both Terra and Aqua MODIS over their entire missions. It is clearly demonstrated in this paper that the lunar approaches developed and applied to MODIS can be effectively used by other sensors for their on-orbit BBR and DDR characterization.
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Xiaoxiong Xiong, Junqiang Sun, Amit Angal, Yong Xie, Taeyoung Choi, and Zhipeng Wang "Results of MODIS band-to-band registration characterization using on-orbit lunar observations", Proc. SPIE 8153, Earth Observing Systems XVI, 81531R (13 September 2011); https://doi.org/10.1117/12.893224
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