Proposed method for accomplishing soft landings on moon is first to establish circumlunar orbit and then to transfer to lowest acceptable altitude by minimum-energy elliptical path; characteristic velocity increment for typical landing (starting from orbit) is 6880 fps; effects of trajectory errors and thrust level.
Some thrust and trajectory considerations for lunar landings
NASA -- Tech Note
1959
27 pages
Article (Journal)
English
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Descent Trajectory Optimization for Soft Lunar Landings
NTIS | 1962
|Descent trajectory optimization for soft lunar landings
Engineering Index Backfile | 1962
|