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http://dx.doi.org/10.20910/JASE.2016.10.4.35

An Analysis of Mid-Course Correction Maneuvers according to Launch-Vehicle Dispersion in Earth-Moon Phasing-Loop Trajectory  

Choi, Su-Jin (Lunar Exploration System Team, Korea Aerospace Research Institute)
Lee, Dong-Hun (Lunar Exploration System Team, Korea Aerospace Research Institute)
Suk, Byong-Suk (Lunar Exploration System Team, Korea Aerospace Research Institute)
Min, Seung-Yong (Lunar Exploration System Team, Korea Aerospace Research Institute)
Rew, Dong-Young (Lunar Exploration System Team, Korea Aerospace Research Institute)
Publication Information
Journal of Aerospace System Engineering / v.10, no.4, 2016 , pp. 35-40 More about this Journal
Abstract
Mid-course correction maneuvers (MCCMs) are necessary to correct the launch-vehicle dispersion to go to the Moon. There were 3 or 4 MCCMs needed for a direct transfer trajectory. But the strategy for MCCMs of the phasing-loop trajectory is different, because it has a longer trans-lunar trajectory than direct transfer does. An orbiter using a phasing-loop trajectory has several rotations of the Earth, so the orbiter has several good places, such as perigee and apogee, to correct the launch-vehicle dispersion. Although launch dispersion is relatively high, the launch vehicle is not as accurate as we expected. A good MCCM strategy can overcome the high dispersion by using small-magnitude correction maneuvers. This paper describes the phasing-loops sequence and strategy to correct high launch-vehicle dispersions.
Keywords
Lunar Orbiter; Mid-Course Correction Maneuver; Launch Vehicle Dispersion; Phasing Loops Trajectory;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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