Low-eccentricity motion of asteroids near the 2/1 Jovian resonance |
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| Authors: | Joachim Schubart |
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| Institution: | (1) Astronomisches Rechen-Institut, Heidelberg, Germany |
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| Abstract: | (903) Nealley moves on an orbit of low eccentricity with a mean motion that is slightly larger than the 2/1 value of resonance. This orbit and some related fictious orbits are studied by numerical integrations of the four-body problem Sun-Jupiter-Saturn-asteroid over an interval of 110000 yr. The author's experience on related cases of resonance allows a study of the variation of suitably defined orbital parameters. The long-term evolution of the orbits is compared with earlier predictions. Some of the librating orbits are temporarily captured in a secondary resonance that refers to three-dimensional motion and is demonstrated by a special example. |
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| Keywords: | Asteroids evolution of orbits 2/1 resonance proper parameter secondary resonance |
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