J/A+AS/115/97ivo://CDS.VizieR/J/A+AS/115/97CDSVeron-Cetty M.-P.Veron P.1998-03-12T16:15:31Z1998-03-12T17:15:22ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiquasarsFrom the measurement on the Digitized Sky Survey of the optical position of 153 QSOs with an accurate VLBI position, we have determined that the r.m.s. uncertainties of these measurements is about 0.6 arcsec in both coordinates over the whole sky, except for objects located near the edge of the plates. We have measured the optical position of 790 AGNs (or AGNs candidates). For many of these objects, the accuracy of the published optical position was one arcminute or worst.1996A&AS..115...97Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/115/97CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/115/97https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/115/97http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/115/97https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/115/97https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/115/97http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/115/97GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/115/97/table1 (Optical J2000 position for 153 QSOs with absolute VLBI position.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/115/97/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/115/97/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/115/97/table1?GETtext/xml+votable180.050000true4.94137573.45833330.005555555555555556Cone search capability for table J/A+AS/115/97/table2 (Optical position for 790 AGNs (and AGN candidates))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/115/97/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/115/97/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/115/97/table2?GETtext/xml+votable180.050000true0.7650833-39.53544440.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/115/97?format=asciiOpticaldefaultJ/A+AS/115/97/table1Optical J2000 position for 153 QSOs with absolute VLBI position.NameName of the sourcemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension J2000 (hours) (optical)pos.eq.ra;meta.mainDEJ2000Declination J2000 (sign)pos.eq.dec;meta.maindRAoptical - radio right ascensionarcsecpos.eq.ra;arith.difffloatdDEoptical - radio declinationarcsecpos.eq.dec;arith.difffloatXposRectangular coordinate toward East measured from the centre of the platecmpos.cartesian.x;instr.detfloatYposRectangular coordinate toward North measured from the centre of the platecmpos.cartesian.y;instr.detfloatJ/A+AS/115/97/table2Optical position for 790 AGNs (and AGN candidates)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the sourcemeta.id;meta.maincharRA1950Right Ascension B1950 (hours)pos.eq.raDE1950Declination B1950 (sign)pos.eq.decRAJ2000Right Ascension J2000 (hours)pos.eq.ra;meta.mainDEJ2000Declination J2000 (sign)pos.eq.dec;meta.mainXposRectangular coordinate toward East measured from the centre of the platecmpos.cartesian.x;instr.detfloatYposRectangular coordinate toward North measured from the centre of the platecmpos.cartesian.y;instr.detfloatFC[1/174]? Reference for the finding chart (see file "refs")meta.refintnullableNote[()1-8C*, ] Remarks (1)meta.notecharJ/A+AS/115/97/refsReferences for table2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFC[1/174]?+ Reference as in table2, blank for continuationmeta.refintnullableprimaryindexedTextText of referencemeta.refchar