Semi-analytical Near-Earth Objects Propagation: The Orbit History of (35107) 1991 VH and (175706) 1996 FG3
| Autor: | DANIEL SCHEERES, Alex Meyer, Oscar Fuentes-Muñoz |
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| Rok vydání: | 2022 |
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| Zdroj: | The Planetary Science Journal. 3:257 |
| ISSN: | 2632-3338 |
| DOI: | 10.3847/psj/ac83c6 |
| Popis: | The propagation of small bodies in the Solar system is driven by the combination of planetary encounters that cause abrupt changes in their orbits and secular long-term perturbations. We propose a propagation strategy that combines both of these effects into a single framework for long-term, rapid propagation of small bodies in the inner Solar System. The analytical secular perturbation of Jupiter is interrupted to numerically solve planetary encounters, which last a small fraction of the simulation time. The proposed propagation method is compared to numerical integrations in the Solar system, effectively capturing properties of the numerical solutions in a fraction of the computational time. We study the orbital history of the Janus mission targets: (35107) 1991 VH and (175706) 1996 FG3, obtaining a stochastic representation of their long-term dynamics and frequencies of very close encounters. Over the last million years the probability of a strongly perturbing flyby is found to be small. Comment: 39 pages, 23 figures, accepted to the Planetary Science Journal (AAS-PSJ) |
| Databáze: | OpenAIRE |
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