基于国际通信卫星组织11参数的GEO卫星轨道快速拟合和预报  

Fast Fitting and Prediction of GEO Satellite OrbitBased on 11 Parameters of Intelsat

作　　者：张政浩 黄勇[2,4,5] 杨鹏 贾小林 ZHANG Zhenghao;HUANG Yong;YANG Peng;JIA Xiaolin(School of Geological Engineering and Geomatics,Chang’an University,Xi’an 710054,China;Shanghai Astronomical Observatory,Shanghai 200030,China;State Key Laboratory of Geo-Information Engineering,Xi’an 710054,China;University of Chinese Academy of Sciences,Beijing 100049,China;Shanghai Key Laboratory of Space Navigation and Position Techniques,Shanghai 200030,China;Xi’an Institute of Surveying and Mapping,Xi’an 710054,China)

机构地区：[1]长安大学地质工程与测绘学院,西安市710054 [2]中国科学院上海天文台,上海市200030 [3]地理信息工程国家重点实验室,西安市710054 [4]中国科学院大学,北京市100049 [5]上海市空间导航与定位技术重点实验室,上海市200030 [6]西安测绘研究所,西安市710054

出　　处：《大地测量与地球动力学》2025年第5期488-493,共6页Journal of Geodesy and Geodynamics

基　　金：国防科工局民用航天技术预先研究项目(D010105);地理信息工程国家重点实验室开放基金(SKLGIE2023-ZZ)。

摘　　要：对国际通信卫星组织(Intelsat)发布的利用11参数计算地球同步轨道(geostationary orbit, GEO)的算法进行拓展应用,针对4颗GEO卫星开展轨道的快速拟合与预报工作。首先对11参数的反算求解进行算法说明,然后对GEO卫星的动力学外推轨道和导航卫星的漏信号数据进行仿真,最后对不同拟合时长和预报时长的轨道进行精度检验。结果表明,拟合6 h数据时,计算时长小于0.9 s,拟合轨道精度优于100 m;利用不同拟合数据时长的反算参数进行轨道预报时,随着拟合时间的增加,预报轨道精度呈现先上升后下降的变化趋势,拟合时长为2 d时,整体预报的轨道精度最高,预报1 d的轨道精度优于1 200 m。The algorithm for solving the geostationary orbit(GEO)using 11 parameters published by the International Telecommunication Satellite Organization(Intelsat)has been extended and applied to the rapid fitting and forecasting of the orbits of four GEO satellites.Firstly,the inverse solution of the 11 parameters is derived in detail.Then,the dynamic prediction of GEO satellite orbits and their onboard GNSS data is simulated.Finally,the accuracy of the orbits with varying fitting and prediction arcs is evaluated.The results show that when fitting data for 6 h,the computation time is less than 0.9 s,and the fitting orbit accuracy is better than 100 m.When using the inverse 11 parameters from different fitting data arcs for prediction,the accuracy of the predicted orbits initially increases and then decreases as the fitting time increases.When the fitting time is 2 days,the prediction orbit accuracy is the highest,and the prediction orbit accuracy of 1 day is better than 1200 m.

关 键 词：国际通信卫星组织 地球同步轨道 轨道拟合 轨道预报 

分 类 号：P228[天文地球—大地测量学与测量工程]