Utilization of an H-reversal trajectory of a solar sail for asteroid deflection |
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Authors: | Sheng-Ping Gong Jun-Feng Li Xiang-Yuan Zeng School of Aerospace Tsinghua University Beijing China |
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Institution: | Sheng-Ping Gong,Jun-Feng Li and Xiang-Yuan Zeng School of Aerospace,Tsinghua University,Beijing 100084,China |
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Abstract: | Near Earth Asteroids have a possibility of impacting the Earth and always represent a threat. This paper proposes a way of changing the orbit of the asteroid to avoid an impact. A solar sail evolving in an H-reversal trajectory is utilized for asteroid deflection. Firstly, the dynamics of the solar sail and the characteristics of the H-reversal trajectory are analyzed. Then, the attitude of the solar sail is optimized to guide the sail to impact the target asteroid along an H-reversal trajectory. The impact... |
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Keywords: | asteroid-techniques: miscellaneous-solar sail |
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