*********** 040594B.SAT *********** Country: Taiwan, Republic of China (ROC) From: Prof. Liu KEYWORDS: Taiwan, Ocean Color Imager, ROCSAT-1, Specifications +++++ ROCSAT-1 OCEAN COLOR IMAGER (OCI) 1. PROPERTY OF SPACECRAFT ROCSAT-1: orbit inclination: 35 degrees (NOT a sun-synchronous orbit) pointing accuracy: < 0.3 degree per axis stability: < 0.01 degree /sec scheduled launch: end of 1997 11. SPECIFICATIONS OF OCI: duty cycle : 09:00 - 15:00 local time swath width: + 30 degree from nadir (about 690 km for 600 km altitude) spatial resolution: < 800 m for 600 km altitude dynamic range: minimum 10 bits data rate: < 200 kbps orbital average; 1.37 giga bits per orbit polarization sensitivity: < 2 % or equivalent performance average power available: 20 W mass allowed: 12 kg envelope size: 35 cm x 35 cm x 50 cm (velocity x cross track x nadir) design instrument life: 2 years on the shelf, plus 4 years in orbit spectral bands (seven): band (nm) SNR physical properties to be measured 433-453 450 Chlorophyll absorption 480-500 450 pigments absorption 500-520 450 Chlorophyll absorption 545-565 450 hinge point, Gelbstoff, sediment 660-680 450 atmospheric aerosols correction 845-865 450 atmospheric aerosols correction SNR must be met at all sun angles which varies with time of the day, viewing angle, season, and latitudes CONTACT PERSONS: Dr. B-T YANG No. 13, R&D Rd. 1, Science-Based Industrial Par Research and Development Division National Space Program Office Hsinchu 300, TAIWAN ROC Phone: 886-35-770-049 Fax: 886-35-770-134 Prof. Cho-Teng LIU Institute of Oceanography National Taiwan University Taipei POB 23-13 TAIWAN, ROC 106 Internet: ctliu@ccms.ntu.edu.tw ************** END Msg. B.SAT **************