J/A+A/697/A157ivo://CDS.VizieR/J/A+A/697/A157doi:10.26093/cds/vizier.36970157CDSGomez-Limon J.M.Leiva R.Ortiz J.L.Morales N.Kretlow M.,Vara-Lubiano M.Santos-Sanz P.Alvarez-Candal A.Rizos J.L.Duffard R.,Fernandez-Valenzuela E.Kilic Y.Cikota S.Sicardy B.Bragas-Ribas F.,Alarcon M.R.Alis S.Benkhaldoun Z.Burdanov A.de Wit J.,Calavia Belloc S.Calvo Fernandez J.Canales Moreno O.Catanzaro G.,Fisek S.Frasca A.Iglesias-Marzoa R.Infante-Sainz R.,Jimenez-Guisado A.Kaspi S.Kuutma T.Lafuente Aznar D.Licandro J.,Maestre J.L.Martorell P.Nastasi A.Occhipinti G.Perello C.,Rinner C.Samper-Domenech B.San Segundo A.Santana-Ros T.,Serra-Ricart M.2025-10-10T20:01:09Z2025-05-19T08:53:27ZCDS support team

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

cds-question@unistra.frsolar-systemasteroidsoccultationphotometryvisible-astronomyinfrared-astronomyThe shapes of only 12 trans-Neptunian objects have been directly measured, offering crucial insights into their internal structure. These properties are strongly connected to the processes that shaped the early Solar System, and provide important clues about its evolution. The aim of the present work is to characterise the size, shape, geometric albedo, and beaming parameter of the TNO (470316) 2007 OC10. We compared these values to the effective diameter and geometric albedo obtained from thermal data by the TNOs are Cool survey. We also combined occultation and thermal data to constrain the size of a putative unresolved satellite. We predicted an occultation of the star Gaia DR3 2727866328215869952 by 2007 OC10 on 2022 August 22. Four stations detected the occultation. We implemented an elliptical shape model for the projection of 2007 OC10. Following a Bayesian approach, we obtained the posterior probability density in the model parameter space using a Markov chain Monte Carlo method. The elliptical limb of 2007 OC 10 has semi-axes of 215_-7_^+10^x141_-23_^+24^km, and thus the projected axis ratio is b/a=0.58_-0.16_^+0.16^. The area-equivalent diameter is 330-55+56 km. From our own absolute magnitude value of HV=5.40+/-0.02, the geometric albedo is pV=11.2_-5.0_^+2.1^%. Combining the occultation results with thermal data, we constrain the beaming parameter to eta=1.42_-0.58_^+0.75^. Occultation data reveal that the star is double. The secondary star has a position angle with respect to the primary of 56_-17_^+3^ degrees, has an angular separation of 57_-11_^+4^mas, and is 1.18_-0.07_^+0.07^ magnitudes fainter than the primary.2025A&A...697A.157Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/697/A157CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/697/A157https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/697/A157http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/697/A157https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/697/A157https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/697/A157http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/697/A157GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/A+A/697/A157/alboxLight-curve from alboxrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/artemisLight-curve from artemisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/botorritLight-curve from botorritarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/canakkleLight-curve from canakklerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/el_guijoLight-curve from el_guijorecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/gal_hassLight-curve from gal_hassinrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/guirguilLight-curve from guirguillanorecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/javalambLight-curve from javalambrerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/liverpooLight-curve from liverpoolrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/oukaimedLight-curve from oukaimedenrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/slnLight-curve from slnFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleJ/A+A/697/A157/tar2Light-curve from tar2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloatJ/A+A/697/A157/wiseLight-curve from wiserecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime (JD-2450000), scale: seconds from midnightstime.epochdoubleFluxNormalized flux of target starsphot.flux;arith.ratiofloate_FluxUncertainty in normalized fluxstat.error;phot.fluxfloat