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12 GCOM is the big mission that does global change monitoring and make the long term data sets for 15 years from satellite data. The GLI series sensor is one of core sensor of this mission. The first series GLI is installed in ADEOS-2 that is launched in 2001. Also, SGLI is installed to GCOM-B1 that is launched in 2006. SGLI is one of GLI series sensor. GLI series sensor is multiband medium spatial resolution imager such as MODIS. Those sensors are classified as general-purpose radiometers capable of serving various earth observation missions. The advancement of remote sensing technologies means that wide ranging remote sensing data is now available to make more accurate products regarding the middle as well as lower atmosphere, ocean, land and cryosphere. The SGLI sensor will be a multipurpose, multiband, medium resolution, visual infrared imager and an advanced version of the GLI. Its main characteristic will be the possession of many channels of which the wavelength specifications and field of view are optimized for a specific target.