| タイトル | A Dynamical Systems Approach to the Design of the Science Orbit Around Europa |
| 著者（英） | Lara, Martin; Gomez, Gerard; Russell, Ryan P. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 2006-06-04 |
| 言語 | eng |
| 内容記述 | The science orbit for a future mission to Europa requires low eccentricity, low altitude, and high inclination. However, high inclination orbits around planetary satellites are unstable due to third-body perturbations. Without control, the orbiter impacts Europa after few weeks. To minimize control, a tour over the stable-unstable, averaged manifolds of unstable frozen orbits has been suggested. We proceed with the unaveraged equations and study the manifolds of unstable orbits that are periodic in a rotating frame attached to Europa. Massive numerical computation helps in understanding the unstable dynamics close to Europa, and, thus, in selecting long lifetime high inclination orbits. A final test of a selected set of initial conditions on a high fidelity, ephemeris model, validate the results. |
| NASA分類 | Mathematical and Computer Sciences (General) |
| レポートNO | ISTS 2006-d-02 |
| 権利 | Copyright |
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