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- W2084787489 abstract "달 궤도선은 한국형발사체(KSLV-II)에 실려 지구 저궤도에 투입된 후, 지상 안테나를 이용한 달 궤도선의 추적데이터 획득 및 궤도결정 과정을 거쳐 적절한 시점에서 TLI(Trans Lunar Injection) 엔진을 점화시켜야 한다. 본 논문은 달 궤도선을 나로우주센터에서 발사하여 달 궤도에 진입하기까지 여러 단계로 나누고 발사 방위각 및 발사창 분석부터 TLI 및 LOI(Lunar Orbit Insertion) 분사 위치에 따른 속도증분(<TEX>${Delta}V$</TEX>) 그리고 가시성 및 식 기간 분석까지 수행하여 직접 전이궤적의 전반적인 특성을 분석하였다. 본 논문은 향후 달 임무 설계 시 관성비행 기간 및 전이기간에 따라 속도증분이 어떻게 변하는지에 대한 전반적인 내용을 파악하는데 도움이 되고, 발사 시각 선정과 연료소모를 줄일 수 있는 파라미터 선정에 도움을 줄 것으로 판단된다. The Lunar orbiter is expected to be inserted into a ~300km low Earth orbit using Korea Space Launch Vehicle-II(KSLV-II). After the states are successfully determined with obtained tracking data, the Trans Lunar Injection(TLI) burn has to be done at appropriate epoch to send the lunar orbiter to the Moon. In this study, we describe in detail the mission scenario of the Korean lunar orbiter from the launch at NARO Space Center to lunar orbit insertion(LOI) stage following direct transfer trajectory. We investigate the launch window including launch azimuth, delta-V profile according to TLI and LOI burn positions. We also depict the visibility conditions of ground stations and solar eclipse duration to understand the characteristics of the direct transfer trajectory. This paper can be also helpful not only for overall understanding of <TEX>${Delta}V$</TEX> trend by changing TOF and coasting time but for selecting launch epoch and control parameters to decrease fuel consumption." @default.
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- W2084787489 date "2013-12-01" @default.
- W2084787489 modified "2023-09-29" @default.
- W2084787489 title "Design and Analysis of Korean Lunar Orbiter Mission using Direct Transfer Trajectory" @default.
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- W2084787489 doi "https://doi.org/10.5139/jksas.2013.41.12.950" @default.
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