J/A+A/400/1095ivo://CDS.VizieR/J/A+A/400/1095doi:10.26093/cds/vizier.34001095CDSVeiga C.H.Vieira Martins R.Vienne A.Thuillot W.Arlot J.-E.2021-02-22T08:46:50Z2003-04-23T14:11:16ZCDS support team

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

cds-question@unistra.frsolar-system-planetsastrometryAstrometric positions of the first eight largest Saturnian satellites and the Lagrangian satellites Helene, Telesto and Calypso are presented from 493 CCD frames taken at the oppositions in 1995 through 1999. The images were obtained over 27 nights. Observed positions are compared with the calculated ones from Vienne and Duriez (1995A&A...297..588V) TASS 1.7 for the large satellites and from JPL positions for the Lagrangian satellites. The rms is about 0.12" for the former but 0.20" for Iapetus and 0.28" for Hyperion. For the Lagrangian satellites it is about 0.21" for Helene, 2.02" for Telesto and 0.60" for Calypso.2003A&A...400.1095Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/400/1095CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/380/727 : 1995 Saturnian satellite observations (Vienne+, 2001)J/A+AS/139/47 : 1995 Saturnian satellites mutual events (Emelianov+, 1999)J/A+A/383/296 : Saturnian Satellites positions (1996-2000) (Peng+, 2002)J/A+AS/139/305 : Position of Saturn's satellites (1982-1988) (Veiga+, 1999)J/A+AS/143/405 : Astrometric observations of Helene (Veiga+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/400/1095https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/400/1095http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/400/1095https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/400/1095https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/400/1095http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/400/1095GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/400/1095/table4List of observed positions of the Saturnian satellitesXpos? Original X coordinatepixpos.cartesian.x;instr.detdoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOppOpposition year code number (1=1874 to 122=1999)meta.number;time.periodintDateObsObservation dateTEstime.epochcharTT-UTCTT-UTC to the nearest tenth of secondstime.epochfloatObs[874] Observatory code (Laboratorio Nacional de Astrofisica, Brazil)meta.code;instr.obstyintRef[303] Reference code catalog (we have chosen 303 for the present observations)meta.note;meta.tableintObsType[0/1] Observation type 0=RA, DE; 1={Delta}RA*cosDE, {Delta}DE (1)meta.noteintObjsSubject satellite, reference satellite (2)meta.id;meta.maincharf_Obs1[1] Flag of presence of the first coordinatemeta.codeintf_Obs2[1] Flag of presence of the second coordinatemeta.codeintObs1First coordinate (3)stat.valuedoubleObs2Second coordinate (3)stat.valuedoubleSys[0/2] Reference system (4)meta.noteintFrame[0/2] Reference frame (5)pos.frameintO-C1? First residual of observations computed with TASS1.7 (6)arcsecstat.fit.residualfloatnullableO-C2? Second residual of observations computed with TASS1.7 (6)arcsecstat.fit.residualfloatnullableNsatNumber of the satellite used as reference in the computation of O-C (2)meta.idintn_NSerie[0/1] 0 for no meaning and 1 when the frame was not used in the computation of the scale and the direction of the seriesmeta.noteintNSerieNumber of the series, the scale and orientation are the same for all observations of one seriesmeta.idintYpos? Original Y coordinatepixpos.cartesian.y;instr.detdoublenullable