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http://dx.doi.org/10.6108/KSPE.2020.24.1.017

Preliminary Mission Design for a Lunar Explorer using Small Liquid Upper Stage  

Choi, Su-Jin (Space Exploration Division, Korea Aerospace Research Institute)
Lee, Hoonhee (Space Exploration Division, Korea Aerospace Research Institute)
Lee, Sang-Il (Launcher Flight Performance Team, Korea Aerospace Research Institute)
Lee, Seok-Hee (Future Launcher R&D Program Office, Korea Aerospace Research Institute)
Lee, Keejoo (Future Launcher R&D Program Office, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.24, no.1, 2020 , pp. 17-23 More about this Journal
Abstract
Upper stage of launch vehicle mainly injects a lunar explorer from low earth orbit to the moon at a distance of 380,000 km. In foreign lunar explorer, the upper stage is separated from the explorer after the explorer is injected into the earth-moon transfer trajectory, and the lunar explorer then uses on-board propellant to carry out mid-course correction maneuvers and lunar orbit insertion maneuvers. This study describes a newly presented small liquid upper stage. Using a small liquid upper stage with a wet mass of 2.9 tonnes, the lunar explorer not only can be injected earth-moon transfer trajectory but also can be performed lunar orbit insertion. This study provides acceptable mass range of the lunar explorer and the scope of acceptable mission range also describes based on the launch from Naro Space Center.
Keywords
Small Liquid Upper Stage; Lunar Explorer; Mission Design; Trans-Lunar Injection; Lunar Orbit Insertion;
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