Revised orbits of Saturn's small inner satellites

被引：56

作者：

Jacobson, R. A. ^{[1
]}

Spitale, J. ^{[2
]}

Porco, C. C. ^{[2
]}

Beurle, K. ^{[3
]}

Cooper, N. J. ^{[3
]}

Evans, M. W. ^{[3
]}

Murra, C. D. ^{[3
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[2] Space Sci Inst, Cassini Imaging Cent Lab Operat, Boulder, CO 80301 USA

[3] Univ London, Queen Mary, Sch Math Sci, Astron Unit, London E1 4NS, England

来源：

ASTRONOMICAL JOURNAL | 2008年 / 135卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

planets and satellites : general; celestial mechanics;

D O I：

10.1088/0004-6256/135/1/261

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have updated the orbits of the small inner Saturnian satellites using additional Cassini imaging observations through 2007 March. Statistically significant changes from previously published values appear in the eccentricities and inclinations of Pan and Daphnis, but only small changes have been found in the estimated orbits of the other satellites. We have also improved our knowledge of the masses of Janus and Epimetheus as a result of their close encounter observed in early 2006.

引用

页码：261 / 263

页数：3

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