First SAR Satellite in Korea, KOMPSAT-5(ICSANE 2012 (International Conference on Space, Aeronautical and Navigational Electronics))

概要

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Korea Aerospace Research Institute (KARI) has developed the KOMPSAT-5 satellite which is the first SAR satellite in Korea. The main mission objectives of KOMPSAT-5 system are to provide the following applications (GOLDEN mission): Geographic Information System, Ocean Management, Land Management, Disaster Monitoring, and ENvironment Monitoring. The KOMPSAt-5 satellite will be delivered to low Earth orbit for all-weather day-night monitoring of Korean peninsula. The KOMPSAT-5 satellite will be operated in dawn-dusk orbit with 28 days repeat ground track period at mean altitude 550km. The mission lifetime is 5 year. The satellite is composed of spacecraft bus, COSI (Corea SAR Instrument) primary SAR payload, and AOPOD (Atmospheric Occultation and Precision Orbit Determination) secondary payload. The X-band SAR payload will provide High Resolution mode SAR image of one (1) m resolution, Standard mode SAR image of three (3) m resolution, and Wide Swath mode SAR image of twenty (20) m resolution. The KOMPSAT-5 ground segment (KGS) is located at KARI site in Korea. The KGS consists of Mission Control Element, Image Reception and Processing Element, and Calibration/Validation Element. The satellite interfaces with KGS via S-band for telemetry and commanding and X-band for SAR data downloading. In this presentation, the mission and system characteristics of KOMPSAT-5 will be introduced.
2012-10-03