Retrospective Analysis of the Orbits of Asteroids Colliding with Earth

In this paper, we consider the trajectories of real and model asteroids that lead to collisions with Earth. They highlight close approaches Earth precede impact. The presence such allows us detect a dangerous object in advance, clarify its orbit, use effect gravitational maneuver economically prevent an asteroid from hitting paper various families collision trajectories: possible asteroids, as well are not linked specific object. It is shown first case, preceding noticeably greater.