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arXiv 0906.2860astro-ph.EP
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INPOP08,4-D行星星历:从小行星和时间尺度计算到ESA火星快车和金星快车的贡献

INPOP08, a 4-D planetary ephemeris: From asteroid and time-scale computations to ESA Mars Express and Venus Express contributions

A. Fienga, J. Laskar, T. Morley, H. Manche, P. Kuchynka, C. Le Poncin-Lafitte, F. Budnik, M. Gastineau, L. Somenzi

摘要:

这里介绍巴黎天文台和贝桑松天文台编制的最新版行星星历。INPOP 08是一个四维星历,因为它向用户提供行星的位置和速度以及TT和TDB之间的关系。调查导致改善建模的小行星以及新的一套观测INPOP 08的适合。介绍了欧洲航天局(ESA)从火星快车(MEX)和金星快车(VEX)任务的跟踪中推导出的新观测结果,以及从卡西尼号任务中推导出的正常点。我们在INPOP 08的拟合中显示了这些观测带来的巨大影响,特别是在金星,土星和地月质心轨道方面。

英文摘要:

The latest version of the planetary ephemerides developed at the Paris Observatory and at the Besancon Observatory is presented here. INPOP08 is a 4-dimension ephemeris since it provides to users positions and velocities of planets and the relation between TT and TDB. Investigations leading to improve the modeling of asteroids are described as well as the new sets of observations used for the fit of INPOP08. New observations provided by the European Space Agency (ESA) deduced from the tracking of the Mars Express (MEX) and Venus Express (VEX) missions are presented as well as the normal point deduced from the Cassini mission. We show the huge impact brought by these observations in the fit of INPOP08, especially in terms of Venus, Saturn and Earth-Moon barycenter orbits.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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