J/AJ/150/136ivo://CDS.VizieR/J/AJ/150/136doi:10.26093/cds/vizier.51500136CDSHartkopf W.I.Mason B.D.2017-12-15T10:55:19Z2016-02-05T14:13:38ZCDS support team

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

cds-question@unistra.frmultiple-starsinterferometryResults are presented of 4222 intensified CCD observations of double stars, made with the 26 inch refractor of the U.S. Naval Observatory in 2013 and 2014. These observations are averaged into 2335 mean relative positions and range in separation from 0.53'' to 83.90'', with a median separation of 11.42''. This is the 20th in this series of papers and covers the period 2013 January 4 through 2014 December 18. Also presented are 13 pairs which are measured for the first time, 12 pairs which appear to be lost, linear elements for 17 pairs, and orbital elements for five additional pairs. Finally, we investigated apparent systematic residuals to earlier measures in this series, and modify scale factors for closer pairs observed between 1990 and the present.2015AJ....150..136Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/150/136CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014)J/AJ/147/123 : Speckle interferometry at SOAR in 2012-2013 (Tokovinin+, 2014)J/AJ/142/56 : Speckle interferometry at the USNO station (Hartkopf+, 2011)J/AJ/138/813 : Speckle interferometry at Mount Wilson Obs. (Hartkopf+, 2009)J/AJ/135/1334 : Speckle interferometry at the USNO station (Hartkopf+, 2008)J/AJ/108/2299 : ICCD speckle observations of binary stars. XI. (Hartkopf+ 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/150/136https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/150/136http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/150/136https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/150/136https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/150/136http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/150/136GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/150/136/table1 (New pairs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/150/136/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/136/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/136/table1?GETtext/xml+votable180.050000true98.9394.93663890.005555555555555556Cone search capability for table J/AJ/150/136/table2 (Relative astrometry of double stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/150/136/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/136/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/136/table2?GETtext/xml+votable180.050000true0.3049613.975080.0055555555555555565/1079 5478 5530 7581 7634 6/16 33 54 58 120 128 206 210 215 221 249 273 280 364 378 399 415 418 433 443 463 474 478 504 511 512 522 542 666 691 705 707 723 728 744 756 771 776 788 790 792 796 829 837 870 931 940 963 966 972 974 979 985 997 999 1000 1001 1012 1113 1184 1194 1199 1208 1216 1223 1226 1227 1260 1297 1299 1300 1312 1511 1539 1545 1549 1560 1561 1677 1682 1692 1695 1700 1823 1863 1901 1974 1980 2042 2051 2059 2070 2111 2145 2154 2157 2264 2265 2266 2304 2316 2319 2339 2345 2349 2366 2448 2460 2491 2492 2499 2505 2507 2522 2536 2593 2597 2598 2600 2601 2605 2608 2611 2673 2675 2704 2747 2762 2766 2771 2779 2782 2785 2800 2804 2833 2907 2909 2912 2930 2931 2970 2985 2990 3000 3001 3013 3014 3018 3042 3230 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31199 31200 31203 31260 31269 31284 31329 31340 31344 31347 31353 31372 31405 31439 31440 31441 31478 31481 31500 31513 31536 31549 31551 31592 31610 31650 31653 31655 31670 31672 31678 31680 31694 31695 31698 31716 31719 31722 31728 31736 31745 31751 31760 31762 31768 31769 31771 31790 31809 31812 31911 31957 31998 32004 32007 32013 32023 32024 32025 32034 32058 32059 32061 32074 32102 32107 32151 32162 32163 32164 32189 32190 32192 32208 32217 32218 32223 32226 32228 32232 32237 32240 32246 32249 32252 32271 32275 32286 32343 32349 32355 32372 32374 32375 32413 32426 32450 32461 32462 32463 32471 32483 32493 32515 32521 32523 32527 32532 32534 32539 32542 32545 32546 32550 32554 32556 32557 32572 32575 32592 32597 32599 32605 32607 32640 32656 32661 32669 32678 32695 32706 32712 36263 36274 36350 36541 36703 36710 36725 36770 36815 36830 36851 40306 40372 40646 40787 40792 40797 40805 40818 40855 40877 40879 40890 40893 40900 40901 40904 40906 40908 40931 40945 44378 44389 44461 44485 44637 44804 44810 44886 44887 44891 44922 44946 44963 44981 44989 45011 49020 49123https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/150/136?format=asciidefaultJ/AJ/150/136/table1New pairsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension of primary (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination of primary (J2000) (1)pos.eq.dec;meta.mainWDSWDS name (HHMMMm+DDMM; J2000) (2)meta.id;meta.maincharDiscDiscoverer designation (3)obs.observercharn_DiscCircumstance of the discovery (1, 2, or 3) (4)meta.notecharCompComponentmeta.code.multipcharmag1[10.4/12.9] Visual magnitude of the primary (1)magphot.mag;em.opt.Vfloatmag2[10.8/14.1] Visual magnitude of the secondary (1)magphot.mag;em.opt.VfloatJ/AJ/150/136/table2Relative astrometry of double starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS name (HHMMm+DDMM; J2000)meta.id;meta.maincharOSimbad column added by the CDSmeta.ref.urlcharDiscDiscover designationobs.observercharprimaryCompComponentmeta.code.multipcharEpoch[2007/2015]? Besselian year of observationyrtime.epoch;obsdoublenullablePA[0/360]? Mean position angle {theta} (1)degpos.posAng;stat.meanfloatnullableu_PA[:] Uncertainty flag for PAmeta.code.errorcharSep[0.53/83.9]? Mean separation {rho}arcsecpos.angDistance;src.orbitalfloatnullableu_Sep[:] Uncertainty flag for Sepmeta.code.errorcharo_Sep[1/21]? Number of independent observations of systemmeta.numberintnullable(O-C)P[-12.2/65.1]? The (O-C) position angle residual (O-C){theta}degstat.fit.residualfloatnullable(O-C)S[-3.1/1.9]? The (O-C) separation residual (O-C){rho}arcsecstat.fit.residualfloatnullableRefPublished orbit or linear solution referencemeta.refcharNew[N] New pair (see Table1)meta.codecharNoteComments about the observation (2)meta.notecharNy[53/121]? Length of time since the system were last measured (3)yrmeta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from WDS Catalog (Cat. B/wds) (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from WDS Catalog (Cat. B/wds) (declination part)degpos.eq.dec;meta.mainnullableJ/AJ/150/136/table3New orbital elementsWDSWDS name (HHMMm+DDMM; J2000)meta.id;meta.maincharNoteDisplay a notemeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDiscDiscover designationobs.observercharComp[AB] Componentmeta.code.multipcharPer[48.7/743.8] Periodyrtime.periodfloate_Per[-0.09/114.2] Formal error in Peryrstat.errorfloata[0.7/1.9] The semimajor axisarcsecphys.angSize.smajAxis;src.orbitalfloate_a[0.003/0.18] Formal error in aarcsecstat.errorfloati[76.1/140.4] The inclinationdegsrc.orbital.inclinationfloate_i[0.2/6.2] Formal error in idegstat.errorfloatOmega[60.3/287] The longitude of the node {Omega}degsrc.orbital.nodefloate_Omega[0.17/13.2] Formal error in Omegadegstat.errorfloatT0[1897.2/1968.5] The epoch of the most recent periastron passage (T_0_ in Besselian years)yrsrc.orbital.periastrondoublee_T0[0.1/14.3] Formal error in T0yrstat.errorfloate[0.2/0.91] The eccentricitysrc.orbital.eccentricityfloate_e[0.003/0.05] Formal error in eccentricitystat.errorfloatomega[42.2/355.8] The longitude of periastrondegsrc.orbital.periastronfloate_omega[0.6/18.5] Formal error in omegadegstat.errorfloatGr[2/4] Grade for each orbit (2, 3, or 4) (1)meta.codeintJ/AJ/150/136/table4New rectilinear elementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS name (HHMMm+DDMM; J2000)meta.id;meta.maincharDiscDiscover designationobs.observercharCompComponentmeta.code.multipcharx0Zero point in x (x_0_) (1)arcsecpos.distance;pos.cartesian.xdoublee_x0Error in x0arcsecstat.errordoubleaxSlope in x (a_x_) (1)arcsec/yrpos.pmdoublee_axError in axarcsec/yrstat.errordoubley0Zero point in y (y_0_) (1)arcsecpos.distance;pos.cartesian.ydoublee_y0Error in y0arcsecstat.errordoubleaySlope in y (a_y_) (1)arcsec/yrpos.pmdoublee_ayError in ayarcsec/yrstat.errordoubleT0[1699.4/2276.4] Time of closest apparent separation T_0_ (1)yrtime.epochdoublee_T0[0.003/0.4] Error in T0yrstat.errorfloatSep0[1.8/45.2] Closest apparent separation {rho}_0_ (1)arcsecpos.angDistance;src.orbitalfloate_Sep0[0.03/3.4] Error in Sep0arcsecstat.errorfloatPA0[36.4/329.7] Position angle {theta}_0_ (1)degpos.posAngfloate_PA0[0.45/31.25] Error in PA0degstat.errorfloatJ/AJ/150/136/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference identifierpos.framecharBibCodeBibliographic codemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentmeta.notecharJ/AJ/150/136/notesNotesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS name (HHMMm+DDMM; J2000)meta.id;meta.maincharNoteNotesmeta.note