J/ApJ/867/105ivo://CDS.VizieR/J/ApJ/867/105doi:10.26093/cds/vizier.18670105CDSTonry J.L.Denneau L.Flewelling H.Heinze A.N.Onken C.A.,Smartt S.J.Stalder B.Weiland H.J.Wolf C.2023-12-20T08:38:52Z2021-03-31T09:38:24ZCDS support team

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

cds-question@unistra.frsurveysphotometryvisible-astronomytrigonometric-parallaxproper-motionsThe Asteroid Terrestrial-impact Last Alert System (ATLAS) observes most of the sky every night in search of dangerous asteroids. Its data are also used to search for photometric variability, where sensitivity to variability is limited by photometric accuracy. Since each exposure spans 7.6{deg} corner to corner, variations in atmospheric transparency in excess of 0.01mag are common, and 0.01mag photometry cannot be achieved by using a constant flat-field calibration image. We therefore have assembled an all-sky reference catalog of approximately one billion stars to m~19 from a variety of sources to calibrate each exposure's astrometry and photometry. Gaia DR2 is the source of astrometry for this ATLAS Refcat2. The sources of g, r, i, and z photometry include Pan-STARRS DR1, the ATLAS Pathfinder photometry project, ATLAS reflattened APASS data, SkyMapper DR1, APASS DR9, the Tycho-2 catalog, and the Yale Bright Star Catalog. We have attempted to make this catalog at least 99% complete to m<19, including the brightest stars in the sky. We believe that the systematic errors are no larger than 5mmag rms, although errors are as large as 20mmag in small patches near the Galactic plane.2018ApJ...867..105Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/867/105CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)II/358 : SkyMapper Southern Sky Survey. DR1.1 (Wolf+, 2018)https://archive.stsci.edu/prepds/atlas-refcat2 : REFCAT2 Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/867/105https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/867/105http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/867/105https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/867/105https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/867/105http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/867/105GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/867/105/refcat2 (ATLAS all-sky stellar reference catalog, ATLAS-REFCAT2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/867/105/refcat2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/867/105/refcat2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/867/105/refcat2?GETtext/xml+votable180.050000true44.996153680.005615810.0055555555555555560/0-11 6/1.1166583743361574e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/867/105?format=asciiOpticaldefaultJ/ApJ/867/105/refcat2ATLAS all-sky stellar reference catalog, ATLAS-REFCAT2GaiaDR2Display the Gaia DR2 data (Gaia collaboation, 2018, I/345)meta.ref.urlcharPlx? Parallax from Gaia DR2 (plx)maspos.parallaxdoublenullableRA_ICRSRight ascension from Gaia DR2 (ICRS), epoch 2015.5 (RA)degpos.eq.ra;meta.mainDE_ICRSDeclination from Gaia DR2 (ICRS), epoch 2015.5 (Dec)degpos.eq.dec;meta.maine_Plx? Parallax uncertainty (dplx)masstat.error;pos.parallaxfloatnullablepmRA? Proper motion in right ascension from Gaia DR2 (pmra)mas/yrpos.pm;pos.eq.radoublenullablee_pmRA? Proper-motion uncertainty in right ascension (dpmra)mas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion in declination from Gaia DR2 (pmdec)mas/yrpos.pm;pos.eq.decdoublenullablee_pmDE? Proper-motion uncertainty in declination (dpmdec)mas/yrstat.error;pos.pm;pos.eq.decfloatnullableGmag? Gaia DR2 G magnitude (Gaia)magphot.mag;stat.mean;em.optfloatnullablee_Gmag? Gaia DR2 G-magnitude uncertainty (dGaia)magstat.error;phot.mag;stat.meanfloatnullableBPmag? Gaia GBP magnitude (BP)magphot.mag;stat.mean;em.opt.Bfloatnullablee_BPmag? Gaia GBP-magnitude uncertainty (dBP)magstat.error;phot.mag;stat.meanfloatnullableRPmag? Gaia GRP magnitude (RP)magphot.mag;stat.mean;em.opt.Rfloatnullablee_RPmag? Gaia GRP-magnitude uncertainty (dRP)magstat.error;phot.mag;stat.meanfloatnullableTeff? Gaia stellar effective temperature (Teff)Kphys.temperature.effectiveintnullableAG? Gaia estimate of G-band extinction for this star (AGaia)magphys.absorption.galfloatnullabledupvarGaia flags (dupvar) (1)meta.codeintAg? Schlegel, Finkbeiner & Davis (1998ApJ...500..525S) estimate of total column g-band extinction (Ag)magphys.absorptionfloatnullablerp1Radius where cumulative G flux exceeds 0.1 x this star (rp1) (2)arcsecphys.angSizefloatr1Radius where cumulative G flux exceeds 1 x this star (r1) (2)arcsecphys.angSizefloatr10Radius where cumulative G flux exceeds 10 x this star (r10) (2)arcsecphys.angSizefloatgmagPan-STARRS gP1 magnitude (g)magphot.mag;em.opt.Bfloate_gmagPan-STARRS gP1-magnitude uncertainty (dg)magstat.error;phot.mag;em.opt.Bfloatgchichi^2^/dof for contributors to g (gchi)stat.fit.chi2floatgcontribBitmap of contributing catalogs to g (gcontrib) (3)meta.codecharrmagPan-STARRS rP1 magnitude (r)magphot.mag;em.opt.Rfloate_rmagPan-STARRS rP1-magnitude uncertainty (dr)magstat.error;phot.mag;em.opt.Rfloatrchichi^2^/dof for contributors to r (rchi)stat.fit.chi2floatrcontribBitmap of contributing catalogs to r (rcontrib) (3)meta.codecharimagPan-STARRS iP1 magnitude (i)magphot.mag;em.opt.Ifloate_imagPan-STARRS iP1-magnitude uncertainty (di)magstat.error;phot.mag;em.opt.Ifloatichichi^2^/dof for contributors to i (ichi)stat.fit.chi2floaticontribBitmap of contributing catalogs to i (icontrib) (3)meta.codecharzmagPan-STARRS zP1 magnitude (z)magphot.mag;em.opt.Ifloate_zmagPan-STARRS zP1-magnitude uncertainty (dz)magstat.error;phot.mag;em.opt.Ifloatzchichi^2^/dof for contributors to z (zchi)stat.fit.chi2floatzcontribBitmap of contributing catalogs to z (zcontrib) (3)meta.codecharnstatCount of griz deweighted outliers (nstat)meta.numberintJmag? 2MASS J magnitude (J)magphot.mag;em.IR.Jfloatnullablee_Jmag? J-magnitude uncertainty (dJ)magstat.error;phot.mag;em.IR.JfloatnullableHmag? 2MASS H magnitude (H)magphot.mag;em.IR.Hfloatnullablee_Hmag? 2MASS H-magnitude uncertainty (dH)magstat.error;phot.mag;em.IR.HfloatnullableKmag? 2MASS K magnitude (K)magphot.mag;em.IR.Kfloatnullablee_Kmag? 2MASS K-magnitude uncertainty (dK)magstat.error;phot.mag;em.IR.Kfloatnullable