Overcoming Genesis mission design challenges |
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| Institution: | 1. Zhejiang University, Hangzhou, China, 310027;2. Zhejiang University of Technology, Hangzhou, China, 310023;3. National Key Laboratory of Science and Technology on Aerospace Intelligent Control, Beijing, China, 100854;1. College of Chemistry, Sichuan University, Chengdu 610064, China;2. Research Centre of Analytical Instrumentation, Key Laboratory of Bio-resource and Eco-environment, Ministry of Education, College of Life Science, Sichuan University, Chengdu 610064, China;3. Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, 92 Zhongshan East Road, Zhengding, Hebei Province 050803, China;4. Analytical & Testing Center, Sichuan University, Chengdu 610064, China |
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| Abstract: | Genesis is the fifth mission selected as part of NASA's Discovery Program. The objective of Genesis is to collect solar wind samples for a period of approximately 2 years while in a halo orbit about the Sun–Earth colinear libration point, L1, located between the Sun and Earth. At the end of this period, the spacecraft follows a free-return trajectory with the samples delivered to a specific recovery point on the Earth for subsequent analysis. This type of sample return has never been attempted before and presents a formidable challenge, particularly with regard to planning and execution of propulsive maneuvers. Moreover, since the original inception, additional challenges have arisen as a result of emerging spacecraft design concerns and operational constraints. This paper will describe how these challenges have been met to date in the context of the better-faster-cheaper paradigm. This paper addresses an earlier mission design, as of May 2000.] |
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