Preliminary design concept of ASTER ground data system

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Abstract
ASTER instrument is a high performance spatial imager on board the EOS-AM1 spacecraft, which will be launched in June 1998. The ASTER raw data will be captured by U.S. ground system via TDRSS, processed to level-0 data, and then transferred to the ASTER Ground Data System in Japan for level-1 data products generation. The ASTER Ground Data System consists of the Communication and System Management System (CSMS), ASTER Operation Segment (AOS), Science Data Processing Segment (SDPS), and Direct Receiving Station (DRS). The ASTER Ground Data System adopts a challenging design concept to handle approximately 780 sets of scenes of 14 spectral bands one stereo band (about 80 Gbytes) per day.

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