Mapping long-term natural orbits about Titania, a satellite of Uranus
- Paper number
IAC-22,C1,IP,39,x69046
- Author
Prof.Dr. Silvia Maria Giuliatti Winter, Brazil, UNESP - Univ Estadual Paulista
- Year
2022
- Abstract
The close polar and circular orbits are of great interest for exploring natural satellites such as Titania, the satellite of Uranus. From a nearly polar and circular orbit, the entire surface of the satellite can be observed as the satellite rotates. In this work we present several maps showing the lifetime of orbits that can be used by a probe about Titania. The asymmetry of the gravitational field due to Titania’s coefficient $C_{22}$ is considered, as well as its oblateness coefficient $J_2$. The gravitational coefficients of Uranus are also analysed. We present lifetime maps to compare the effects caused by each perturbation, considering different values of the eccentricity of the orbit of the probe. Our results show that low-altitude near-circular orbits have longer lifetimes. The reason is the balance between the third body perturbation and Titania gravitational coefficients. The results also show that the values of $\omega$ and $\Omega$ are essential to increase the lifetime of the orbits.- Abstract document
- Manuscript document
IAC-22,C1,IP,39,x69046.pdf (🔒 authorized access only).
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