Deflecting NEOs in Route of Collision with the Earth
We consider a small sample of known near Earth objects (NEOs), both asteroids and comets, with low minimum orbital intersection distance (MOID). Through a simple numerical procedure we generate slightly different orbits from this sample in such a way that these bodies will collide with the Earth at...
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| Veröffentlicht in: | Icarus (New York, N.Y. 1962) N.Y. 1962), 2002-10, Vol.159 (2), p.417-422 |
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| container_title | Icarus (New York, N.Y. 1962) |
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| creator | Carusi, Andrea Valsecchi, Giovanni B. D'Abramo, Germano Boattini, Andrea |
| description | We consider a small sample of known near Earth objects (NEOs), both asteroids and comets, with low minimum orbital intersection distance (MOID). Through a simple numerical procedure we generate slightly different orbits from this sample in such a way that these bodies will collide with the Earth at a specific epoch. Then we study the required change in orbital velocity (along track Δ
v) in order to deflect these NEOs at different epochs before the impact event. The orbital evolution of these NEOs is performed through a full N-body numerical integrator. A comparison with analytical estimates is also performed in selected cases. Interesting features in the Δ
v/time before impact plots are found; as a prominent result, we find that close approaches to the Earth before the epoch of the impact can make the overall deflection easier. |
| doi_str_mv | 10.1006/icar.2002.6906 |
| format | Article |
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v) in order to deflect these NEOs at different epochs before the impact event. The orbital evolution of these NEOs is performed through a full N-body numerical integrator. A comparison with analytical estimates is also performed in selected cases. Interesting features in the Δ
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| title | Deflecting NEOs in Route of Collision with the Earth |
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