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논문 기본 정보

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학술저널
저자정보
Ju Young Son (Korea University of Science and Technology) 조중현 (한국천문연구원) 최진 (과학기술연합대학원대학교) Bang-Yeop Kim (Korea Aerospace Research Institute) Joh-Na Yoon (Chungbuk National University Observatory) 임홍서 (한국천문연구원) 최영준 (한국천문연구원) Sun-youp Park (Korea Astronomy and Space Science Institute) 배영호 (한국천문연구원) Dong-Goo Roh (Korea Astronomy and Space Science Institute) 박장현 (한국천문연구원) Ji-Hye Kim (Korea Astronomy and Space Science Institute)
저널정보
한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제32권 제3호
발행연도
2015.9
수록면
229 - 235 (7page)
DOI
http://dx.doi.org/10.5140/JASS.2015.32.3.229

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We estimated the orbit of the Communication, Ocean and Meteorological Satellite (COMS), a Geostationary Earth Orbit (GEO) satellite, through data from actual optical observations using telescopes at the Sobaeksan Optical Astronomy Observatory (SOAO) of the Korea Astronomy and Space Science Institute (KASI), Optical Wide field Patrol (OWL) at KASI, and the Chungbuk National University Observatory (CNUO) from August 1, 2014, to January 13, 2015. The astrometric data of the satellite were extracted from the World Coordinate System (WCS) in the obtained images, and geometrically distorted errors were corrected. To handle the optically observed data, corrections were made for the observation time, light-travel time delay, shutter speed delay, and aberration. For final product, the sequential filter within the Orbit Determination Tool Kit (ODTK) was used for orbit estimation based on the results of optical observation. In addition, a comparative analysis was conducted between the precise orbit from the ephemeris of the COMS maintained by the satellite operator and the results of orbit estimation using optical observation. The orbits estimated in simulation agree with those estimated with actual optical observation data. The error in the results using optical observation data decreased with increasing number of observatories. Our results are useful for optimizing observation data for orbit estimation.

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