TANSO On-Orbit and Vicarious Calibration Plan

Abstract

Greenhouse gases Observing SATellite (GOSAT) is a Japanese mission for monitoring greenhouse gases, such as CO₂ and CH₄, from space. The GOSAT carries a Fourier transform spectrometer and a push broom imager. On orbit, the observation data will be evaluated by onboard calibration data and implemented by ground L1 processing system. The post-launch calibration items are planned and the methods will be developed before the launch. The methods are investigated by analyzing the current MODIS data, which has similar wavelength bands to GOSAT. In this paper, we show the plans of onboard calibration, and post-launch vicarious calibration of GOSAT sensors.