Volume 411, Number 2, November IV 2003
|Page(s)||309 - 312|
|Section||Celestial mechanics and astrometry|
|Published online||17 November 2003|
Improvement of the ephemerides of Phoebe, 9th satellite of Saturn, from new observations made from 1995 to 2000*
Institut de Mécanique Céleste et de Calcul des Éphémérides, observatoire de Paris, UMR 8028 du CNRS, 77 avenue Denfert-Rochereau, 75014 Paris, France e-mail: firstname.lastname@example.org
Corresponding author: J.-E. Arlot, Jean-Eudes.Arlot@imcce.fr
Accepted: 27 February 2003
In order to improve the model used for the ephemerides of Phoebe, the 9th satellite of Saturn, we started observations in 1998. We made 135 observations in 1998 and 39 observations in 1999 using the 120 cm-telescope of Observatoire de Haute-Provence, France. We used a numerical integration in order to calculate new initial conditions and to be able to build new ephemerides. We also used some precise observations made from 1995 to 2000 together with old observations for that purpose. The result is a decrease in the uncertainties on Phoebe's orbit.
Key words: planets and satellites: individual: Saturn, Phoebe / Astrometry
© ESO, 2003
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