The proto-flight test (PFT) of Infrared Scanning Radiometer (IRS) started in December 2014 to confirm the sensor performance. IRS is one of the two sensor units of Second Generation Global Imager (SGLI) on GCOM-C satellite. IRS has six optical channels from 1.1micron to 12 micron, corresponds to Short Wave Infrared (SWI) and Thermal Infrared (TIR) observation requirements of GCOM-C mission. The GCOM-C is planned for launch in 2017. This paper describes the SGLI-IRS test status.
The Second-generation Global Imager (SGLI) on the Global Change Observation Mission (GCOM) is a multi-band optical imaging radiometer in the wavelength range from near-UV to thermal infrared. SGLI will provide high accuracy measurements of Ocean, Atmosphere, Land and Cryosphere. SGLI consists of two radiometers, the Visible and Near Infrared Radiometer (VNR) and the Infrared Scanning Radiometer (IRS). This paper describes VNR Engineering Model (EM) and Proto Flight Model (PFM) optical test results. Especially we achieved measurement accuracy of ±4% for polarization rate and that of ±1.3deg for polarization direction that enables objective accuracy of aerosol observation.
Global Change Observation Mission, GCOM has two series of satellites, GCOM-W(Water) and GCOM-C(Climate). Both satellites are designed for five years on-orbit life time, and three satellites for each are planned to realize the long time over 11 years continuous global observation. The first satellite, GCOM-W with Advance Microwave Radiometer - 2 (AMSR-2), was already launched in 2012 and is continuously observing the earth for two years, now. The second satellite, GCOM-C with optical radiometer, Second Generation Global Imager (SGLI), is planned for launch in JFY- 2016. SGLI consists of two sensor units, Visible Near Infrared Radiometer (SGLI-VNR) and Infrared Scanning Radiometer (SGLI-IRS). The both flight model sensors are under the manufacturing and integration. This paper describes the SGLI-IRS development status.
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