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Tether assisted near earth object diversion |
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| Institution: | 1. Sun Yat-sen University, Shenzhen, Guangdong, 518000, China;2. University of Glasgow, Glasgow, G12 8QQ, United Kingdom;1. School of Astronomy and Space Science, Nanjing University, Nanjing 210023, China;2. Institute of Space Environment and Astrodynamics, Nanjing University, Nanjing 210093, China;3. Key Laboratory of Modern Astronomy and Astrophysics, Ministry of Education, Nanjing 210023, China;1. Harbin Institute of Technology, 150001 Harbin, Heilongjiang, People’s Republic of China;2. Air Force Aviation University, 130022 Changchun, Jilin, People’s Republic of China |
| Abstract: | Potential earth impact threats posed by asteroids have motivated researchers to find effective NEO diversion techniques. Several means to perturb the motion of an asteroid have been discussed in the literature. Attaching a long tether and ballast mass to the asteroid can effectively alter its trajectory. In this paper it is shown that by cutting the tether at an appropriate time the diversion can be enhanced. The instant of cutting the tether significantly affects the final orbit of the asteroid and thus the resulting deflection from the original path. |
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