Overview of GCOM-A1 satellite program

The Ozone Dynamics Ultraviolet Spectrometer (ODUS) is a satellite-borne, nadir-looking ultraviolet spectrometer for measuring total column ozone, SO/sub 2/, aerosols, NO/sub 2/, HCHO, BrO, and OClO. It will be a NASDA's core instrument of GCOM-A1 (GCOM: Global Change Observation Mission) satellite to be launched in February 2006. The GCOM program is designed to determine the climate trends. The GCOM-A1 will carry the SOFIS (Solar-occultation FTS for Inclined-orbit Satellite, developed by Environment Agency of Japan), and other instruments to be provided by foreign space agencies.