Bounded relative orbits about asteroids for formation flying and applications
Bounded relative orbits about asteroids for formation flying and applications
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DOI：
10.1016/j.actaastro.2015.12.033
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发表时间：
2016-06
影响因子：
3.5
通讯作者：
N. Baresi;D. Scheeres;H. Schaub
中科院分区：
文献类型：
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作者：
N. Baresi;D. Scheeres;H. Schaub
研究了4179 Toutatis的相对运动，以探讨编队飞行作为未来小行星探测任务的替代概念的可行性。特别是，存在的准冻结轨道缓慢旋转的机构，使我们能够计算家庭的周期轨道的小行星的身体固定的框架。由于这些周期轨道是中心×中心型的，准周期不变环面是通过完全数值方法计算的，并用于初始化航天器围绕中心体的编队。数值模拟表明，所得到的平面内和平面外相对轨迹在长时间跨度上保持有界;即，超过30天。
The relative motion about 4179 Toutatis is studied in order to investigate the feasibility of formation flying as an alternative concept for future asteroid exploration missions. In particular, the existence of quasi-frozen orbits about slowly rotating bodies allows us to compute families of periodic orbits in the body-fixed frame of the asteroid. Since these periodic orbits are of thecenter×centertype, quasi-periodic invariant tori are calculated via fully numerical procedures and used to initialize spacecraft formations about the central body. Numerical simulations show that the resulting in-plane and out-of-plane relative trajectories remain bounded over long time spans; i.e., more than 30 days.