J/AJ/162/53ivo://CDS.VizieR/J/AJ/162/53doi:10.26093/cds/vizier.51620053CDSMason B.D.Williams S.J.Matson R.A.Josties J.D.Eakens P.D.,Justice M.Kilian C.M.Warner R.2022-03-15T08:28:18Z2021-11-30T07:19:28ZCDS support team

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

cds-question@unistra.frmultiple-starsinterferometryastrometryThe results of 3611 intensified CCD observations of double stars, made with the 26inch refractor of the U.S. Naval Observatory, are presented. Each observation of a system represents a combination of over 2000 short-exposure images. These observations are averaged into 1857 mean relative positions and range in separation from 0.341" to 128.644", with a median separation of 6.533". Two systems have their orbits improved and one has its first determination. This is the 24th in this series of papers and covers the period 2018 May 24 through 2019 October 28.2021AJ....162...53Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/53CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2020)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)J/AJ/140/480 : Speckle interferometry at USNO. XV. (Mason+, 2010)J/AJ/140/1623 : PHASES diff. astrometry data archive. II. (Muterspaugh+, 2010)J/AJ/140/1657 : PHASES diff. astrometry data archive. V. (Muterspaugh+, 2010)J/AJ/141/157 : Speckle interferometry at USNO. XVI. (Mason+, 2011)J/AJ/142/46 : Speckle interferometry at USNO. XVII. (Mason+, 2011)J/AJ/142/56 : Speckle interferometry at the USNO station (Hartkopf+, 2011)J/AJ/143/124 : Speckle interferometry at the USNO. XVIII. (Mason+, 2012)J/AJ/144/56 : Speckle interferometry at SOAR in 2012 (Tokovinin+, 2012)J/AJ/146/56 : Speckle interferometry at the USNO. XIX. (Mason+, 2013)J/AJ/147/123 : Speckle interferometry with SOAR 2012-2013 (Tokovinin+, 2014)J/AJ/150/50 : Speckle interferometry at SOAR in 2014 (Tokovinin+, 2015)J/AJ/150/136 : Speckle interferometry at USNO. XX. (Hartkopf+, 2015)J/A+A/597/A47 : CARMENES input catalogue M dwarfs II (Cortes-Contreras+ 2017)J/AJ/153/20 : Speckle interferometry at USNO. XXI. (Mason+, 2017)J/AJ/154/183 : Speckle interferometry at the USNO. XXII. (Mason+, 2017)J/AJ/154/200 : The nearby white dwarf/red dwarf pair 40 Eri BC (Mason+, 2017)J/AJ/156/240 : Speckle interferometry at the USNO. XXIII. (Mason+, 2018)J/MNRAS/473/4497 : Binary stars astrom. & photom. measurements (Roberts+, 2018)J/AJ/160/284 : 2590 binary stars in Hipparcos and Gaia DR2 (Makarov, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/53https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/53http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/53https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/53https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/53http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/53GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/162/53/table3ICCD measurements of double starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS designation (HHMMm+DDMM, J2000)meta.id;meta.maincharDiscoDiscoverer designationmeta.idcharCompMeasured components of multiple systemmeta.code.multipcharEpoch[2004/2020] Epoch of observationyrtime.epochdoublePA[0.3/360] Position angledegpos.posAngfloate_PA[0/3] Uncertainty in PAdegstat.errorfloatSep[0.34/129] Separationarcsecpos.angDistance;src.orbitalfloate_Sep[0/9] Uncertainty in Separcsecstat.errorfloatNobs[1/7] Number of observations contained in the meanmeta.numberintNoteObject notes (1)meta.notecharJ/AJ/162/53/table4ICCD measurements of double stars with orbit residualsNoteObject note(s) (1)meta.notecharRefReferencemeta.ref;pos.framecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS designation (HHMMm+DDMM, J2000)meta.id;meta.maincharDiscoDiscoverer designationmeta.idcharCompMeasured components of multiple systemmeta.code.multipcharEpoch[2016/2020] Epoch of observationyrtime.epochdoublePA[1.5/358]? Position angledegpos.posAngfloatnullablee_PA[0/2]? Uncertainty in PAdegstat.errorfloatnullableSep[0.36/30]? Separationarcsecpos.angDistance;src.orbitalfloatnullablee_Sep[0/0.34]? Uncertainty in Separcsecstat.errorfloatnullableNobs[1/6]? Number of observations contained in meanmeta.numberintnullableOC-PA[-31/8.2] Position angle (O-C) residualdegstat.fit.residualfloatOC-Sep[-0.34/0.29]Separation (O-C) residualarcsecstat.fit.residualfloatJ/AJ/162/53/refsReferences used for table 4RefReference codemeta.notecharNoteAdditional notemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAutorMain autor of the referenceobs.observercharBIBBIBcodemeta.bib.bibcodecharCat.Catalog in Viziermeta.notechar