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구분 SCI
연도 ~ 키워드

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학술지 태양 동기 위성의 고도 감소에 의한 승교점 통과 시각의 변화
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저자
이병선, 황유라, 김해연, 윤재철, 김해동, 김재훈
발행일
200606
출처
한국우주과학회지, v.23 no.2, pp.127-134
ISSN
2093-5587
출판사
한국우주과학회 (KSSS)
DOI
https://dx.doi.org/10.5140/JASS.2006.23.2.127
초록
Variation of the Local Time of Ascending Node (LTAN) has been analyzed according to initial inclinations when the altitude of Sun-synchronous satellite is continuously decreased due to the atmospheric drag. Orbit predictions of 3 years have been performed with the satellite of 500 km altitude when the initial LTAN were set to 06:00, 09:00, 12:00, 15:00, and 18:00. Different profiles of the inclination and LTAN have been obtained according to the satellite altitude decay and initial LTAN value. Using the profiles of the inclination and LTAN, initial orbital elements can be derived for minimizing the LTAN variations during the mission life time of the sun-synchronous satellite without any on-board thrusters for orbit maneuvers.
KSP 제안 키워드
Atmospheric drag, Different profiles, During the mission, Life time, Local time, On-board, Orbital elements, Sun-synchronous