J/A+A/665/A66ivo://CDS.VizieR/J/A+A/665/A66doi:10.26093/cds/vizier.36650066CDSBendjoya P.Cellino A.Rivet J.-P.Devogele M.Bagnulo S.Abe L.,Vernet D.Gil-Hutton R.Venezian A.2023-07-03T13:23:08Z2022-09-13T08:09:09ZCDS support team

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

cds-question@unistra.frasteroidsThe Calern Asteroid Polarimetric Survey (CAPS), a collaboration between the INAF Astrophysical Observatory of Torino (Italy) and the Observatoire de la Cote d'Azur (Nice, France), has produced new asteroid polarimetric data for a number of years, and is one of the most important, currently active projects of asteroid polarimetry. The purpose of this paper is to make public the CAPS data collected thus far, to explain the adopted techniques of data reduction and computation of phase-polarisation curves for the measured objects, and explain, by means of some examples, the importance of the CAPS database. The pipeline of data reduction has been recently updated and made as automatic as possible, using numerical algorithms developed specifically for the purposes of CAPS. The derivation of phase-polarisation curves for the observed asteroids is done using established criteria and algorithms that have recently been slightly improved, and are also summarised in this paper. The CAPS catalogue is a steadily growing source of information which can be exploited for different purposes, including, but not limited to, an updated calibration of the relations existing between different polarimetric parameters and the geometric albedo of the objects, and a study of classes of objects that can be most easily identified by means of their polarimetric properties. These subjects will be more specifically discussed in separate papers. Asteroid polarimetry data nicely complement the results of other more commonly used techniques, including visible and IR photometry and spectroscopy. CAPS contains a lot of much-desired information about physical properties, which can hardly be inferred by means of other techniques.2022A&A...665A..66Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/665/A66CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/astorb : Orbits of Minor Planets (Bowell+ 2014-)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/665/A66https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/665/A66http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/665/A66https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/665/A66https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/665/A66http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/665/A66GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/665/A66/listList of asteroids with data in tablesIdAsteroid numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameAsteroid namemeta.idcharNT1? Number of measurements in CAPS data (table A1)meta.numberintnullableNT2? Number of measurements in CASLEO data (table A2)meta.numberintnullableplotShow the phase-polarisation curvesmeta.ref.urlcharJ/A+A/665/A66/capsThe CAPS data (table A1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIdAsteroid Identificationmeta.id;meta.mainintDateObservation date, YYYY-MM-DDtime.epoch;obsnullableFracFraction of the Daydtime.epochfloatalphPhase angledegsrc.orbitalfloatPrLinear degree of Polarisation%instr.bandpassfloate_PrError on Linear degree of Polarisation%stat.errorfloatFilter[UBVRI] Filter UBVRI in Johnson-Cousin systeminstr.bandpasscharJ/A+A/665/A66/casleoThe CASLEO data (table A2)e_PrError on Linear degree of Polarisation%stat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIdAsteroid Identificationmeta.id;meta.mainintDateObservation date, YYYY-MM-DDtime.epoch;obsnullableFracFraction of the Daydtime.epochfloatalphPhase angledegsrc.orbitalfloatPrLinear degree of Polarisation%instr.bandpassfloatFilter[UBVRI] Filter UBVRI in Johnson-Cousin systeminstr.bandpasschar