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| 1 | A preliminary study on dead geostationary satellite removal显示文摘The collision between satellites IRIDIUM 33 and COSMOS 2251 indicated that the clash of two on-orbit satellites was becoming an inevitable reality. Our calculation with the two-line orbit element by NORAD showed that some two geostationary satellites had approached very close in July 2009. Therefore, more attention should be given to avoid such collisions. This paper analyzes the orbital long-term variation of a dead satellite drifting in the geostationary orbit. Also, the negative effects posed by dead satellites upon the on-orbit operational geostationary satellites are studied. Then the paper proposes a novel idea to launch a satellite sweeper whose purpose is to collect the on-orbit dead satellites and help them de-orbit to a 'graveyard'. The satellite sweeper consists of a parent satellite and a child satellite. The child satellite collects a dead satellite and transfers it to a higher orbit. The parent satellite stationed in the geostationary orbit is in charge of refueling the child satellite. The strategy of maneuver and rendezvous is presented and a series of formulas are derived. The analysis results show that our method to clean the geostationary orbital zone is practical and fuel-saving. With the help of just a few satellite sweepers, we can gain a clean environment of geostationary orbit environment again. | LI YuHeng1, YANG KaiZhong2, SHAN ChengSheng2, LUO Dan2, GUAN Hui2, ZHENG Jun2, CHENG Hong2 & MAN Li2 1 Xidian University, Shaanxi 710071, China 2 Xi’an Satellite Control Center, Shaanxi 710043, China | 2010 | Science China(Technological Sciences)2010，53，12： | 7 |
| 2 | 地球同步轨道废弃卫星清理方法初步研究显示文摘美国IRIDIUM 33卫星与俄罗斯COSMOS 2251卫星相撞事件表明解决在轨卫星相撞事件已经是现实问题.文章分析了失效卫星轨道长期变化规律和对工作在同步轨道航天器的影响,给出了2009年7月两颗地球同步轨道卫星非常接近的计算实例,尽管碰撞并未发生,但同步轨道上由于两颗卫星距离太近而进行规避控制已经是卫星在轨测控的重要内容.基于现成的卫星制造和控制技术,提出了一种清理失效卫星的设想,清理卫星由母星和子星组成,子星体积小且质量轻,用于捕抓失效卫星并将其带离同步轨道,母星携带足够燃料停留在定点位置,用于给子星补充燃料,使子星能够反复使用.文章设计了轨道接近和捕获策略,推导了计算公式,分析结果表明该方法能够充分节省燃料,理论上只需要几颗清理卫星就可以清理干净地球同步轨道. | 李于衡 杨开忠 单长胜 罗丹 关晖 郑军 陈宏 满莉 | 2011 | 中国科学:技术科学2011，41，2： | 6 |
| 3 | Multi-Scale Physical Process in the Magnetosphere显示文摘The brief report presents a part of the research results of the magnetospheric physics researches in China during the period of 2006—2008.During the past two years,China-ESA co-operation DSP(Double Star Program) satellites were basically operating normally in its extended lifetime.The DSP and Cluster missions provide Chinese space physicists high quality data to study multi-scale physical process in the magnetosphere.The work made based on the data of DSP is presented in the paper of 'Progress of Double Star Program' of this issue. | CAO Jinbin LIU Zhenxing | 2008 | 空间科学学报2008，28，5： | 0 |
| 4 | 磁零点与三维磁重联几何结构的卫星观测研究显示文摘 | 肖池阶 王晓钢 濮祖荫 马志为 汪景琇 赵辉 周桂萍 刘振兴 | 2007 | 中国基础科学2007，，4： | 0 |
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