Paper from AIAA Space 2009 Conference on asteroid mitigation technique using tether and ballast mass. Abstract follows...
"Trajectory Diversion of an Earth-Threatening Asteroid via Massive Tether-Ballast System"
David B. French, Andre P. Mazzoleniy
North Carolina State University, Raleigh, North Carolina, 27695
Abstract:
Researchers have provided a large volume of information related to the location and mitigation of Earth-threatening asteroids. Several alternatives have been proposed for the deviation of such asteroids. This paper focuses on a mitigation technique that was not included among the alternatives listed in the report, namely the use of a long tether and ballast mass to divert an asteroid. In a previous study, such a tether was modeled as massless and rigid. For this study, it was desired to relax this assumption, so a model was developed to include tether mass. This paper shows that the results using the massive model validate qualitatively the results of the previous study which demonstrate that a tether-ballast system can be used to successfully divert an Earth-threatening asteroid.
Link: AIAA Paper Preview (PDF)
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