Exploring the Moon gravity to escape from the Earth–Moon system

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• 作者：S. H. S. Santana ; C. F. De Melo ; E. E. N. Macau…
• 关键词：Swing ; by ; Escape trajectories ; Numerical simulations
• 刊名：Computational and Applied Mathematics
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：35
• 期：3
• 页码：701-710
• 全文大小：1,322 KB
• 刊物主题：Applications of Mathematics; Computational Mathematics and Numerical Analysis; Mathematical Applications in the Physical Sciences; Mathematical Applications in Computer Science;
• 出版者：Springer Basel
• ISSN：1807-0302
• 卷排序：35

文摘

Escape trajectories from the Earth–Moon system can be obtained through a single gravity assist maneuver of a spacecraft with the Moon. This paper presents a semi-analytical study of variations in the semi-major axis and the eccentricity of a spacecraft for a geocentric frame—before and after a close encounter of the spacecraft with the Moon. Studies on the swing-by dynamics between a spacecraft and the Moon were performed in order to establish a set of initial conditions in terms of eccentricities and semi-major axes of geocentric initial orbits. This way, it was possible identify which orbits, launched from Earth parking orbits, accomplish swing-bys with the Moon and generate escape trajectories.