Numerical Simulation of the Orbital Evolution of Near-Earth Asteroids Close to Mean Motion Resonances

Astronomy and Astrophysics – Astronomy

Scientific paper

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Asteroids, Resonances, Orbital Evolution, Numerical Simulation

Scientific paper

The dynamics of near-Earth asteroids near mean motion resonances with the Earth or other planets is considered. The probability domains of the motion of some near-Earth asteroids close to low-order resonances are presented. The investigations have been carried out by means of a numerical integration of differential equations, taking into account the perturbations from the major planets and the Moon. For each investigated object an ensemble of 100 test particles with orbital elements nearby those of the nominal orbit has been constructed and its evolution has been retraced over the time interval (-3000, +3000 years). The initial set of orbits has been generated on the basis of probable variations of the initial orbital elements obtained from the least square analysis of observations.

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