아리랑 1호 서브시스템의 궤도상 성능 분석

The KOMPSAT-l which was designed for 3 years mission operation was launched on Dec. 21 1999. MCC(Mission Control Center) has conducted the normal operation with continuous monitoring and trend analysis of the satellite subsystems, and succeeded to complete the KOMPSAT-1 mission operations for 3 years life time with support of subsystem engineers. In this paper, In-Orbit performances of each subsystem and the availability of system operation were analyzed and reviewed. The performance degradation of EPS, TC&R, AOC5, TCS, PS, and payloads except SPS were kept within design requirements. It was estimated that the operational life time can be extended two more years considering the long term performance of subsystems and the estimation of fuel consumption.