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Asteroid Proper Elements: The Big Picture

Published online by Cambridge University Press:  19 July 2016

Zoran Knežević  and
Andrea Milani
Zoran Knežević
Affiliation:
Astronomska opservatorija, Volgina 7, 11050 Beograd, Yugoslavia
Andrea Milani
Affiliation:
Dipartimento di Matematica, Via Buonarroti 2, 56127 Pisa, Italy E-mail milani@dm.unipi.it

Abstract

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Four perturbation theories presently used to compute asteroid proper elements are reviewed, and their results are briefly discussed (Milani and Knežević, 1990, 1992, 1994, for low to moderate eccentricity/inclination main belt objects; Lemaitre and Morbidelli, 1994, for high e, I objects; Milani, 1993, for Trojans; Schubart, 1982, 1991 for Hildas). The most important recent improvements are described, in particular those pertaining to the upgrades of the previous analytic and semianalytic solutions. The dynamical structure of the asteroid main belt, as defined by the low order mean motion resonances and by linear and nonlinear secular resonances, is considered from the point of view of the effects of these resonances on the accuracy and/or reliability of the computation of proper elements and on the reliability of the identification of asteroid families.

Type
Dynamics
Information
Symposium - International Astronomical Union , Volume 160: Asteroids, Comets, Meteors 1993 , 1994 , pp. 143 - 158
Copyright
Copyright © Kluwer 1994 

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