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학술저널
저자정보
최진 (과학기술연합대학원대학교) 조중현 (한국천문연구원) 임홍서 (한국천문연구원) 최영준 (한국천문연구원) Maru Park (Korea Astronomy and Space Science Institute) Sun-youp Park (Korea Astronomy and Space Science Institute) 배영호 (한국천문연구원) Dong-Goo Roh (Korea Astronomy and Space Science Institute) 조성기 (한국천문연구원) Young-Sik Park (Korea Astronomy and Space Science Institute) Hyun-Jung Jang (Korea Astronomy and Space Science Institute) Ji-Hye Kim (Korea Astronomy and Space Science Institute) 박장현 (한국천문연구원)
저널정보
한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제32권 제4호
발행연도
2015.12
수록면
411 - 417 (7page)
DOI
http://dx.doi.org/10.5140/JASS.2015.32.4.411

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Several optical monitoring strategies by a ground-based telescope to protect a Geostationary Earth Orbit (GEO) satellite from collisions with close approaching objects were investigated. Geostationary Transfer Orbit (GTO) objects, Inclined GeoSynchronous Orbit (IGSO) objects, and drifted GEO objects forced by natural perturbations are hazardous to operational GEO satellites regarding issues related to close approaches. The status of these objects was analyzed on the basis of their orbital characteristics in Two-Line Element (TLE) data from the Joint Space Operation Center (JSpOC). We confirmed the conjunction probability with all catalogued objects for the domestic operational GEO satellite, Communication, Ocean and Meteorological Satellite (COMS) using the Conjunction Analysis Tools by Analytical Graphics, Inc (AGI). The longitudinal drift rates of GeoSynchronous Orbit (GSO) objects were calculated, with an analytic method and they were confirmed using the Systems Tool Kit by AGI. The required monitoring area was determined from the expected drift duration and inclination of the simulated target. The optical monitoring strategy for the target area was analyzed through the orbit determination accuracy. For this purpose, the close approach of Russian satellite Raduga 1-7 to Korean COMS in 2011 was selected.

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