Entry, Descent, and Landing Operations Analysis for the Stardust Entry Capsule
Entry, Descent, and Landing Operations Analysis for the Stardust Entry Capsule
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DOI：
10.2514/1.37090
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发表时间：
2008-11-01
影响因子：
1.6
通讯作者：
Kangas, Julie
中科院分区：
文献类型：
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作者：
Desai, Prasun N.;Lyons, Dan T.;Kangas, Julie
2006年1月15日早上，星尘号太空舱成功降落在犹他州西北部的犹他州测试和训练靶场，并带回了怀尔德2号彗星的彗星样本。概述了进入，下降和着陆轨迹分析，在使命操作阶段的目标后，最后接近地球进行了说明。最终的轨道确定解产生的惯性进入飞行轨迹角为-8.21度（期望的标称值），3 σ不确定度为+/-0.0017度（要求的2%）。导航和进入，下降和着陆操作的努力准确地将进入舱运送到期望的着陆点。最后降落地点距离目标8.1公里，完全在允许降落的区域内。总体而言，地球进场操作程序运行良好，没有出现任何问题（后勤或绩效方面）。结果，成功演示了从行星际轨道瞄准太空舱并将其准确降落在地球上的过程。
On the morning of 15 January 2006, the Stardust capsule successfully landed at the Utah Test and Training Range in northwest Utah, returning cometary samples from the comet Wild-2. An overview of the entry, descent, and landing trajectory analysis that was performed for targeting during the mission operations phase upon final approach to Earth is described. The final orbit determination solution produced an inertial entry flight-path angle of -8.21 deg (the desired nominal value) with a 3-sigma uncertainty of +/- 0.0017 deg (2% of the requirement). The navigation and entry, descent, and landing operations effort accurately delivered the entry capsule to the desired landing site. The final landing location was 8.1 km from the target, which was well within the allowable landing area. Overall, the Earth approach operation procedures worked well and there were no issues (logistically or performance-based) that arose. As a result, the process of targeting a capsule from an interplanetary trajectory and accurately landing it on Earth was successfully demonstrated.