论文标题
低能轨道的设计和性能用于探索Ecceladus
Design and performance of low-energy orbits for the exploration of Enceladus
论文作者
论文摘要
冰冷的卫星是领先太空机构的勘探计划的重点，因为在这些物体中观察到水基生命和地质活动的迹象。特别是，在土埃尔德斯（Ecceladus）的南极附近的间歇泉般的水喷射机，使土星的月亮变成了寻找生活和可居住性特征的优先候选人。这项调查提出了在土星 - 塞拉杜斯循环局部限制的三体问题的光环轨道之间的一组轨迹。提出了设计方法，然后分析解决方案的观察性能。结论是，所提出的轨道表现出适合其在科学探索地塔的使用，即漫长的转移时间，低海拔，宽阔的表面可见性窗口和长时间升天的特征。
The icy moons are in the focus of the exploration plans of the leading space agencies because of the indications of water-based life and geological activity observed in a number of these objects. In particular, the presence of geyser-like jets of water near Enceladus' south pole has turned this moon of Saturn into a priority candidate to search for life and habitability features. This investigation proposes a set of trajectories between Halo orbits about Lagrangian points L1 and L2 in the Saturn-Enceladus Circular Restricted Three-Body Problem as science orbits for a future in situ mission at Enceladus. The design methodology is presented, followed by the analysis of the observational performance of the solutions. The conclusion is that the proposed orbits exhibit suitable features for their use in the scientific exploration of Enceladus, i.e., long transfer times, low altitudes, wide surface visibility windows and long times of overflight.
