J/AJ/164/240ivo://CDS.VizieR/J/AJ/164/240doi:10.26093/cds/vizier.51640240CDSJacobson R.A.,Brozovic M.,Mastrodemos N.,Riedel J.E.,Sheppard S.S.2023-09-27T10:56:05Z2023-02-10T07:17:25ZCDS support team

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

cds-question@unistra.frsolar-systemasteroidsastrometryvisible-astronomyWe report a new determination of the orbits of the irregular Saturnian satellites. We fit their numerically integrated orbits to a data set containing Earth-based observations and imaging data from the Cassini spacecraft. We include the statistics of the observation residuals, the satellites' orbital elements, and projected accuracies of the satellites' positions. We also provide astrometric positions derived from the Cassini imaging. Two of the satellites are considered lost because they have not been observed for more than one epoch and have indeterminate uncertainties in their positions. Three of the satellites appear to be in a Kozai resonance, with one being the first irregular satellite of any planet found to be in a 270{deg} rather than 90{deg} resonance.2022AJ....164..240Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/240CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/580/A76 : Positions of satellites of giant planets (Gomes-Junior+, 2015)J/AJ/153/147 : The orbits of Jupiter's irregular satellites (Brozovic+, 2017)J/AJ/163/241 : Residual stats. Uranus & Neptune satellites (Brozovic+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/164/240https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/164/240http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/164/240https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/164/240https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/164/240http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/164/240GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/164/240/table2 (*Cassini imaging observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/164/240/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/164/240/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/164/240/table2?GETtext/xml+votable180.050000true209.351-13.2390.0055555555555555566/3946 4532-4534 4576 4937-4939 4960 5322 5467 5470-5471 5673-5674 5901 5904 7492 7494 8200 8202-8203 8343 8505 8508 8600 8766 8844 8846 8868 9042-9043 9047-9048 9728 17119 17290 18758 18761 18764 21502-21503 22398 22451 22869 24781 24783 24792 25159 25165 25168 25170 25261 25435 25665 25805 25812-25813 25840 25842 25860 25991 26153 26155 26774 26779-26780 26782 26801 26891 26894 26907 26913 26929 27525 27578 27796-27797 27934 27953 28358-28359 28372 28374 28379 28382-28383 28407 28441 28533 28625 29633 30921 30928 30930-30931 30936 31182 31191 31482 31656-31657 31659 31996 31999 32168 32303 35022 35042 38481 38484 42598 42601 42604 43083 43104 43406 44403-44404 44532 44770 44974 45096-45097 46841 46844 46846 46853 48143 48152-48154 48406-48407 48409 48412 48450-48451https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/164/240?format=asciiOpticaldefaultJ/AJ/164/240/table2*Cassini imaging observationse_posL[0.2/4] Uncertainty on Linepixstat.errorfloatCamRAdeg[14.5/356] Camera pointing Right Ascension (ICRF)degpos.eq.ra;instr.obsty;obs.imagefloatCamDEdeg[-84.4/78.4] Camera pointing Declination (ICRF)degpos.eq.dec;instr.obsty;obs.imagefloatTwist[1.42/359] Camera's twist angledeginstr.paramfloatRAICRS[14.5/356] Satellite's Right Ascension (ICRF)degpos.eq.ra;meta.maine_RAICRS[0.3/9] Uncertainty in RAdegdegstat.error;pos.eq.rafloatDEICRS[-84.4/78.4] Satellite's Declination (ICRF)degpos.eq.dec;meta.maine_DEICRS[0.3/8] Uncertainty in DEdegdegstat.error;pos.eq.decfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintImageImage nameobs.imagecharObsUTC Observation date, daytime.epoch;obsSatObserved satellitemeta.id;meta.maincharposS[132/710] Satellite sample position on imagepixsrc.sample;instr.obsty;obs.imagefloatposL[157/609] Satellite's line position on imagepixsrc.sample;instr.obsty;obs.imagefloate_posS[0.2/5] Uncertainty on Samplepixstat.errorfloat