Mars pinpoint landing systems

被引：0

作者：

Wolf, Aron ^{[1
]}

Sklyanskiy, Evgeniy ^{[1
]}

Tooley, Jeffrey ^{[1
]}

Rush, Brian ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA

来源：

ASTRODYNAMICS 2007, PTS I-III | 2008年 / 129卷

关键词：

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Estimated landing accuracy at Mars has steadily improved, from within similar to 150 kin of the target (3-sigma) for Mars Pathfinder to similar to 35 kin for MER (both of which flew unguided ballistic entries), mainly due to improved approach navigation. The 2009 Mars Science Laboratory (MSL) mission will improve delivery to within similar to 10 kin using guided hypersonic entry to "fly out" atmospheric and vehicle aerodynamics uncertainties. "Pinpoint Landing" within 100m requires terrain-relative navigation, as well as additional propellant in powered descent which levies a penalty on EDL performance. Systems trades affecting this propellant mass penalty are explored here.

引用

页码：959 / 977

页数：19

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