상세정보
학술대회
Test of the COMS Satellite Ground Control System
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- 발행일
- 200811
- 출처
- 한국항공우주학회 학술 발표회 (추계) 2008, pp.1522-1525
- 협약과제
- 08MR1700, 통신해양기상위성 위성통신시스템기술개발, 이성팔
- 초록
- COMS(Chollian) satellite which was launched on June 26, 2010 has three payloads for Ka-band communications,geostationary ocean color imaging and meteorological imaging. In order to make efficient use of the geostationary satellite, a concept of mission operations has been considered from the beginning of the satellite ground control system development. COMS satellite mission operations are classified by daily, weekly, monthly,and seasonal operations. Daily satellite operations include mission planning, command planning and transmission,telemetry processing and analysis, ranging and orbit determination, ephemeris and event prediction, and wheel off-loading set point parameter calculation. As a weekly operation, North-South station keeping maneuver and East-West station keeping maneuver should be performed on Tuesday and Thursday, respectively. Spacecraft oscillator updating parameter should be calculated and uploaded once a month. Eclipse operations should be performed during a vernal equinox and autumnal equinox season. In this paper, operational validations of the major functions in COMS SGCS are presented for the first three month of in-orbit test operations. All of the major functions have been successfully verified and the COMS SGCS will be used for the mission operations of the COMS satellite for 7 years of mission life time and even more.
- KSP 제안 키워드
- Event Prediction, Geostationary satellite, Ground Control System, Ka-band communications, Life time, Ocean color, Orbit determination, Station-keeping, color imaging, in-orbit test, mission operations