J/MNRAS/449/2638ivo://CDS.VizieR/J/MNRAS/449/2638doi:10.26093/cds/vizier.74492638CDSPeng Q.Y.Wang N.Vienne A.Zhang Q.F.Li Z.Meng X.H.2024-08-14T20:21:04Z2019-11-28T11:35:14ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsolar-systemastrometry346 new CCD observations during the years 2011-2014 have been reduced to derive the precise positions of Phoebe, the ninth satellite of Saturn. The observations were made by the 2.4 m telescope at Yunnan Observatory over nine nights. Due to the use of a focal-reducer on the telescope, its significant geometric distortion is solved for and removed for each CCD field of view. The positions of Phoebe are measured with respect to the stars in UCAC2 catalogue (Cat. I/289). The theoretical position of Phoebe was retrieved from the Institute de Mechanique Celeste et de Calcul des Ephemerides (IMCCE) ephemeris which includes the latest theory PH12 by Desmars et al. (2013, J/A+A/553/A36), while the position of Saturn was obtained from the Jet Propulsion Laboratory ephemeris DE431. Our results show that the mean O-Cs (observed minus computed) are -0.02 and -0.07 arcsec in right ascension and declination, respectively. The dispersions of our observations are estimated at about 0.04 arcsec in each direction.2015MNRAS.449.2638Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/449/2638CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/391/767 : CCD observations of Phoebe in 1998-1999 (Fienga+, 2002)J/A+A/454/379 : 2003-2004 Phoebe CCD astrometry (Qiao+, 2006)J/A+A/553/A36 : Catalogue of Observations of Phoebe (Desmars+, 2013)J/A+A/575/A73 : Astrometry of the Saturnian satellites 2004-12https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/449/2638https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/449/2638http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/449/2638https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/449/2638https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/449/2638http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/449/2638GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/449/2638/table6 (CDD observations of Phoebe in 2011-2014)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/449/2638/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/449/2638/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/449/2638/table6?GETtext/xml+votable180.050000true195.849916667-4.1137969440.0055555555555555566/25712 26135 44478 44929https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/449/2638?format=asciidefaultJ/MNRAS/449/2638/table6CDD observations of Phoebe in 2011-2014recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date of exposure middle time (UTC)dtime.epochdoubleRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.main