The infrared multi - spectral scanner (IRMSS) is an important component of the China Brazil earthresourcesatellite(CBERS - l) .
红外多光谱扫描仪（IRMSS）是中巴地球资源卫星（CBERS）上的重要有效载荷之一。
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The earthresource satellites 01 and 02 jointly developed by both countries have been successfully sent to the outer space in China Taiyuan Satellite Launch Center in 1999 and 2003 respectively.
Based on the analysis of satellite's function and payload's resource constraint, a planning and scheduling method for earth observation satellite is proposed to solve the problem in the paper.