“嫦娥二号”后续小行星飞越探测任务设计
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国家自然科学基金资助项目(11303001);国家高技术研究发展计划项目(2012AA7034057G)


Design of an asteroid flying-by mission for CHANG’E-2
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    摘要:

    为了实现对4179小行星飞越之后的嫦娥二号卫星的最大限度利用,提出了后续小行星飞越探测计划,研究了相关飞行任务设计。基于嫦娥二号卫星轨道、剩余燃料和测控距离等约束,设计了能量最优的转移轨道,给出了合适的小行星交会目标。研究了不同轨道控制方式下的转移轨道中途修正。基于我国深空测控网分布,分析了嫦娥二号后续小行星飞越探测任务的测控情况。研究结果表明,基于嫦娥二号剩余燃料,合适的飞越探测目标为小行星1997XF11和2005VS,转移过程中我国深空测控站每天可以实现8h以上跟踪,中途修正速度增量小于10m/s。

    Abstract:

    An asteroid rendezvous plan for CHANG′E-2 was put forward and the corresponding mission was designed to maximize the satellite utilization. First, the satellite status of CHANG′E-2 at present was introduced. Based on the constraint of the current CHANG′E-2 orbit and remaining fuel and TT&C (telemetry, track, and command) capacity, the design of optimal transfer trajectory and the selection of rendezvous asteroid were studied. The suitable asteroids for rendezvous were given as a result. Second, the mid-course correction was studied according to two orbit maneuver modes, i.e., the fixed interval mode and the fixed interval mode with a least velocity increment constraint. Finally, the TT&C condition of the asteroid rendezvous mission was briefly analyzed according to the Chinese deep space network. The results show that the fuel remains can support the rendezvous of CHANG′E-2 with Asteroid 1997XF11 and 2005VS. Furthermore, the Chinese deep space network can provide an 8-h daily VLBI (Very Long Baseline Interferometry) tracking at least in the interplanetary course. The velocity increment for mid-course corrections is less than 10 m/s.

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刘磊,吴伟仁,唐歌实,等.“嫦娥二号”后续小行星飞越探测任务设计[J].国防科技大学学报,2014,36(2):13-17.
LIU Lei, WU Weiren, TANG Geshi, et al. Design of an asteroid flying-by mission for CHANG’E-2[J]. Journal of National University of Defense Technology,2014,36(2):13-17.

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  • 收稿日期:2013-10-20
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  • 在线发布日期: 2014-05-14
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