J/A+AS/135/227ivo://CDS.VizieR/J/A+AS/135/227CDSJilinski E.G.Puliaev S.Penna J.L.Andrei A.H.Laclare F.2002-08-03T16:23:21Z2002-08-03T16:23:14ZCDS support team

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

cds-question@unistra.frthe-sunIn January 1997, at the Observatsrio Nacional (ON), Rio de Janeiro, Brazil, CCD observations of the solar diameter with a Danjon astrolabe equipped with a variable angle reflecting prism began. This prism is operated manually and enables to observe the Sun many times per day and all year round on the Southern latitude {phi}=-22{deg}54'. Thanks to this and owing to a large number of sunny days at Rio de Janeiro, a high density of observations was achieved - 2900 East and 1730 West observations during the first 18 months.1999A&AS..135..227Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/135/227CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/143/265 : Solar diameter observations in 1998-1999 (Puliaev+, 2000)J/A+A/375/614 : Astrolabe observations of the Sun in 1990-2000 (Noel, 2001)J/A+AS/102/11 : Astrolabe observations of the Sun in 1990-1992 (Noel 1993)J/A+AS/106/327 : Observations of the Sun during 1993 at Santiago (Noel 1994)J/A+AS/113/131 : Observations of the Sun during 1994 (Noel, 1995)J/A+AS/132/195 : Astrolabe observations of the Sun in 1995-1997 (Noel 1998)J/A+AS/110/351 : Sun observations in 1992 (Sanchez+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/135/227https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/135/227http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/135/227https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/135/227https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/135/227http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/135/227GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+AS/135/227/tableDaily average of the raw results from solar semi-diameter observations by the Solar Astrolabe at Rio de JaneirorecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNobsNumber of observationsmeta.numberintDiamDaily average semi-diameterarcsecphys.angSize;srcfloate_DiamStandard error of the average semi-diameterarcsecstat.errorfloatDateYear, month and day of the observationstime.epochnullableErrThe error of a single observation, given by the standard deviationarcsecstat.errorfloat