PMOE2003行星历表框架(Ⅴ)历表文件的生成和使用  

PMOE 2003 PLANETARY EPHEMERIS FRAMEWORK (Ⅴ) CREATING AND USING OF EPHEMERIS FILES

作　　者：李广宇[1] 田兰兰[1] 

机构地区：[1]中国科学院紫金山天文台,210008

出　　处：《紫金山天文台台刊》2004年第Z1期160-170,共11页

摘　　要：输入历表研究是单航天器激光天文动力学空间计划等深空探测任务研究工作的一项重要内容。我们在张家祥太阳系动力学模型和汤健仁、倪维斗等CGC 2星历框架的基础上建立了PMOE 2003精密行星月球历表框架。经过近两年的改进,预报天体位置的精度已达到DE 405历表的水平。本文介绍用Chebyshev多项式逼近积分器产生的天体状态数据,生成历表文件的方法,同时还说明了历表文件的结构和用法。Research on the input ephemeris is crucial for the pre-phaseA study of the deep space exploration, i. e. One-Spacecraft Astrodynamical Space Test of Relativity using Optical Devices (ASTROD Ⅰ). The PMOE 2003 planetary ephemeris framework has been constructed on the bases of the dynamical model of the solar system of Zhang Jiaxiang, and the CGC2 Ephemeris Framework of Tang Chien-Jen, Ni Wei-Tou et al. The prediction accuracy of the positions of the Moon and the planetary bodies in the solar system with the PMOE 2003 ephemeris framework is close to that with the JPL DE 405 ephemeris. The method of creating ephemeris files is introduced in this paper to approximate the body's data produced by the PMOE 2003 integrator using the Chebyshev polynomials. The structure and usage of the ephemeris files are also presented here.

关 键 词：行星历表 Chebyshev多项式逼近 

分 类 号：P114[天文地球—天文学]