A numerical research on the orbital evolution of the NEAs and investigation about the effectiveness of symplectic algorithm.

Details A numerical research on the orbital evolution of the NEAs and investigation about the effectiveness of symplectic algorithm. A numerical research on the orbital evolution of the NEAs and investigation about the effectiveness of symplectic algorithm.

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998acasn..39..141l&link_type=abstract

Acta Astron. Sin., Vol. 39, No. 2, p. 141 - 152

Astronomy and Astrophysics

Astronomy

1

Near-Earth Objects: Orbital Evolution

Scientific paper

A numerical research on the orbital evolution of 43 numbered NEAs has been made by adopting the improved explicit symplectic algorithm and the RKF7(8) integrator. For the mechanical model, the post-Newtonian effect has also been taken into account, apart from considering the gravitational perturbations of major planets. The prospect that the symplectic algorithm might be suitable for studying the orbital evolution of NEAs is investigated, especially for the effectiveness of this algorithm in the case that the NEAs closely approach a major planet.

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