Determination of the controlled landing trajectory of Chang'E-1 satellite and the coordinate analysis of the landing point on the Moon
文献类型：期刊论文
| 作者 | Li JinLing ; Guo Li; Qian ZhiHan; Jiang DongRong; Zheng WeiMin; Hong XiaoYu
|
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 55期号:13页码:1240-1245 |
| 关键词 | China's Lunar Exploration Project Chang'E-1 satellite controlled landing on the Moon trajectory measurement VLBI |
| 英文摘要 | Based on the tracking observations of radio ranges and VLBI delays of Chang'E-1 (CE-1) satellite during the controlled landing on the Moon on March 1, 2009, the landing trajectory and the coordinates of the landing point are determined by positioning analysis. It is shown that the landing epoch (the emission epoch of the last signal) of CE-1 satellite on the Moon was at UTC8h13m6.51s. The lunar longitude, latitude and surface height of the landing point in the lunar primary axes frame are respectively 52.2732A degrees, 1.6440A degrees and -3.56 km (the reference lunar radius is 1738 km). The uncertainties are 0.0040A degrees, 0.0168A degrees and 0.18 km. The corresponding uncertainty in the tangential direction of the lunar surface is 0.52 km and the three-dimensional (3D) positioning uncertainty is 0.55 km. It is accordingly deduced that even with the present technical specifications of the radio ranges and VLBI delays, the 1 km 3D positioning precision could be guaranteed for the lander in the second stage of China's Lunar Exploration Project. Concerning the trace determination of the rover on the lunar surface, because only telemetry signal will be emitted, VLBI would be the sole tracking technique from the Earth. The application of the constraint of geocentric distance is shown to be helpful to improving the positioning precision. It is worthy to pay close attention to the applications of the same beam VLBI technique, the lunar topographic model and the on-board observations of the lander and rover to the position/trace determination of the rover. |
| WOS标题词 | Science & Technology |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277369300003 |
| 源URL | [http://119.78.226.72/handle/331011/19972]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li JinLing,Guo Li,Qian ZhiHan,et al. Determination of the controlled landing trajectory of Chang'E-1 satellite and the coordinate analysis of the landing point on the Moon[J]. CHINESE SCIENCE BULLETIN,2010,55(13):1240-1245. |
| APA | Li JinLing,Guo Li,Qian ZhiHan,Jiang DongRong,Zheng WeiMin,&Hong XiaoYu.(2010).Determination of the controlled landing trajectory of Chang'E-1 satellite and the coordinate analysis of the landing point on the Moon.CHINESE SCIENCE BULLETIN,55(13),1240-1245. |
| MLA | Li JinLing,et al."Determination of the controlled landing trajectory of Chang'E-1 satellite and the coordinate analysis of the landing point on the Moon".CHINESE SCIENCE BULLETIN 55.13(2010):1240-1245. |
入库方式： OAI收割
来源：上海天文台
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