| 1.2m望远镜卫星跟踪定位精度的实测与分析 |
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| 引用本文： | 郑向明,张云成,姜崇国,冯和生.1.2m望远镜卫星跟踪定位精度的实测与分析[J].天文研究与技术,2001(4):36-41. |
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| 作者姓名： | 郑向明 张云成 姜崇国 冯和生 |
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| 作者单位： | 郑向明（中国科学院云南天文台云南昆明650011）
张云成（中国科学院云南天文台云南昆明650011）
姜崇国（中国科学院云南天文台云南昆明650011）
冯和生（中国科学院云南天文台云南昆明650011） |
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| 摘 要： | 用1.2m地平式望远镜加装的视频CCD、计算机图象数据采集卡及其运用数据处理软件,对2000年4月17日观测视角速度比较快的激光卫星Topex进行了实测及结果分析.每组资料数据为10帧图象,在当天晚上的跟踪观测过程中取得32组数据,用一个二次多项式进行拟合处理后的结果,再把计时误差引起的定位误差分离出来,余下为1.4″误差视为望远镜的跟踪定位精度.为了提高跟踪定位精度,我们认为主要解决CCD计时误差即可.
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| 关 键 词： | 跟踪定位精度 实测 结果分析 |
| 文章编号： | 1001-7526(2001)04-0036-06 |
| 修稿时间： | 2001年2月20日 |
Observation and Analysis of the Accuracy of Tracking and Pointing for Satellite Using 1.2m Telescope |
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| ZHENG Xiang-ming,ZHANG Yun-cheng,JIANG Chong-guo,FENG He-sheng.Observation and Analysis of the Accuracy of Tracking and Pointing for Satellite Using 1.2m Telescope[J].Astronomical Research & Technology,2001(4):36-41. |
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| Authors: | ZHENG Xiang-ming ZHANG Yun-cheng JIANG Chong-guo FENG He-sheng |
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| Abstract: | The observation and data analysis of the Topex satellite on April 17,2000 are given in this paper. The observational data from a Video CCD installed on the 1.2m telescope is disposed using collecting and processing software for the video images. A group of independent data is composed of 10 images and 32 groups are observed. The influence of the timing effects in the results with a 2th order least squares polynomial is separated and finally the accuracy of the telescope tracking and pointing is 2 arcsec. It is shown that the influence of the timing effects is an important factor. |
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| Keywords: | satellite observation data analysis |
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