“嫦娥二号”后续小行星飞越探测任务设计  

Design of an asteroid flying-by mission for CHANG'E-2

作　　者：刘磊[1,2] 吴伟仁 唐歌实[1,2] 周建亮[2] 

机构地区：[1]航天飞行动力学技术重点实验室,北京100094 [2]北京航天飞行控制中心,北京100094 [3]国家探月与航天工程中心,北京100037

出　　处：《国防科技大学学报》2014年第2期13-17,共5页Journal of National University of Defense Technology

基　　金：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)

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。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 TTC（ 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 TTC 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 1997XF11and 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 midcourse corrections is less than 10 m / s.

关 键 词：嫦娥二号 任务设计 飞越探测 小行星 中途修正 

分 类 号：V412[航空宇航科学与技术—航空宇航推进理论与工程]