J/ApJ/794/120ivo://CDS.VizieR/J/ApJ/794/120doi:10.26093/cds/vizier.17940120CDSAnnis J.Soares-Santos M.Strauss M.A.Becker A.C.Dodelson S.Fan X.,Gunn J.E.Hao J.Ivezic Z.Jester S.Jiang L.Johnston D.E.,Kubo J.M.Lampeitl H.Lin H.Lupton R.H.Miknaitis G.Seo H.-J.,Simet M.Yanny B.2019-01-29T13:48:34Z2019-01-14T14:12:58ZCDS support team

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

cds-question@unistra.frsurveysvisible-astronomysloan-photometryWe present details of the construction and characterization of the coaddition of the Sloan Digital Sky Survey (SDSS) Stripe 82 ugriz imaging data. This survey consists of 275 deg^2^ of repeated scanning by the SDSS camera over -50{deg}<={alpha}<=60{deg} and -1.25{deg}<={delta}<= +1.25{deg} centered on the Celestial Equator. Each piece of sky has ~20 runs contributing and thus reaches ~2mag fainter than the SDSS single pass data, i.e., to r~23.5 for galaxies. We discuss the image processing of the coaddition, the modeling of the point-spread function (PSF), the calibration, and the production of standard SDSS catalogs. The data have an r-band median seeing of 1.1'' and are calibrated to <=1%. Star color-color, number counts, and PSF size versus modeled size plots show that the modeling of the PSF is good enough for precision five-band photometry. Structure in the PSF model versus magnitude plot indicates minor PSF modeling errors, leading to misclassification of stars as galaxies, as verified using VVDS spectroscopy. There are a variety of uses for this wide-angle deep imaging data, including galactic structure, photometric redshift computation, cluster finding and cross wavelength measurements, weak lensing cluster mass calibrations, and cosmic shear measurements.2014ApJ...794..120Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/794/120CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/210/22 : Herschel Stripe 82 survey (HerS) first catalog (Viero+ 2014)J/MNRAS/440/476 : Low-redshift quasars in SDSS Stripe 82 (Falomo+, 2014)J/MNRAS/441/1802 : Low-redshift QSOs in SDSS Stripe 82 (Karhunen+, 2014)J/A+A/578/A79 : Galaxy clusters in SDSS Stripe 82 (Durret+, 2015)J/ApJ/799/72 : Binary AGNs from the VLA Stripe 82 survey (Fu+, 2015)J/A+A/594/A32 : 3XMM/SDSS Stripe 82 Galaxy Cluster Survey. I. (Takey+, 2016)J/ApJ/817/172 : X-ray Observations of Stripe 82 (LaMassa+, 2016)J/MNRAS/456/1359 : IAC Stripe 82 Legacy Project: Photometry (Fliri+, 2016)J/MNRAS/457/2703 : Local SDSS galaxies in Herschel Stripe 82 (Rosario+, 2016)J/MNRAS/460/4433 : SDSS Stripe 82 VLA 1-2GHz survey (Heywood+, 2016)J/AJ/154/269 : A new photo-z method for quasars in Stripe 82 (Yang+, 2017)J/ApJ/834/160 : ugriz colors of RR Lyrae in SDSS Stripe 82 (Ngeow+, 2017J/MNRAS/480/707 : Stripe 82 1-2 GHz VLA Snapshot Survey (Prescott+, 2018)J/A+A/611/A97 : Photometric QSO candidates in Stripe 82 (Pasquet-Itam+ 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/794/120https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/794/120http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/794/120https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/794/120https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/794/120http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/794/120GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/794/120/catalog (SDSS Stripe 82 catalogue (November 2017 version))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/794/120/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/794/120/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/794/120/catalog?GETtext/xml+votable180.050000true0.0001311750.4912634990.0055555555555555564/1113 1114 1125 1126 1129 1130 1173 5/4351 4415 4431 4442 4451 4460 4464 4495 4499 4508 4515 4524 4528 4544 4691 4696 4697 4699 4700 4864 6/17399 17403 17655 17659 17719 17723 17762 17772 17774 17799 17803 17844 17848 17860 17864 17975 17979 17991 17995 18036 18040 18055 18059 18100 18104 18116 18120 18180 18184 18743 18749 18759 18763 18792 18793 18804 18808 19460 19464https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/794/120?format=asciiOpticaldefaultJ/ApJ/794/120/catalogSDSS Stripe 82 catalogue (November 2017 version)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintobjIDSDSS unique object identifier (objID)meta.id;meta.mainRA_ICRS[] Right ascension (ICRS) (ra)degpos.eq.ra;meta.mainindexedDE_ICRSDeclination (ICRS) (dec)degpos.eq.dec;meta.mainindexedskyVersion[15] skyVersion (skyVersion)meta.codeintrunRun number (run)meta.idintrerunRerun number (rerun)meta.idintcamcolCamcol number (camcol)meta.idintFieldField number (field)meta.id;obs.fieldintobjObject id within the field (obj)meta.idintModemode number (mode)meta.idintnChildnChild number (nChild)meta.numberintType[3/6] Typei (3=galaxy, 6=styar) (type)meta.codeintprobPSFProbability that the object is a star (probPSF)stat.fit.goodnessdoubleinsideMask[0] Flag to indicate whether object is inside a mask and why (insideMask)meta.codeintFlagsPhoto Object Attribute Flags (flags)meta.code.errorFlagsuu-band Photo Object Attribute Flags (flags_u)meta.code.errorFlagsgg-band Photo Object Attribute Flags (flags_g)meta.code.errorFlagsrr-band Photo Object Attribute Flags (flags_r)meta.code.errorFlagsii-band Photo Object Attribute Flags (flags_i)meta.code.errorFlagszz-band Photo Object Attribute Flags (flags_z)meta.code.errorupmag? PSF u magnitude (psfMag_u)magphot.mag;em.opt.UdoublenullablegpmagPSF g magnitude, AB scale (psfMag_g)magphot.mag;em.opt.BfloatrpmagPSF r magnitude, AB scale (psfMag_r)magphot.mag;em.opt.RfloatipmagPSF i magnitude, AB scale (psfMag_i)magphot.mag;em.opt.IfloatzpmagPSF z magnitude, AB scale (psfMag_z)magphot.mag;em.opt.Ifloate_upmag? rms uncertainty on upmag (psfMagErr_u)magstat.error;phot.magdoublenullablee_gpmag? rms uncertainty on gpmag (psfMagErr_g)magstat.error;phot.magdoublenullablee_rpmag? rms uncertainty on rpmag (psfMagErr_r)magstat.error;phot.magdoublenullablee_ipmag? rms uncertainty on ipmag (psfMagErr_i)magstat.error;phot.magdoublenullablee_zpmag? rms uncertainty on zpmag (psfMagErr_z)magstat.error;phot.magdoublenullableufmagFiber u magnitude, AB scale (fiberMag_u)magphot.mag;em.opt.UfloatgfmagFiber g magnitude, AB scale (fiberMag_g)magphot.mag;em.opt.BfloatrfmagFiber r magnitude, AB scale (fiberMag_r)magphot.mag;em.opt.RfloatifmagFiber i magnitude, AB scale (fiberMag_i)magphot.mag;em.opt.IfloatzfmagFiber z magnitude, AB scale (fiberMag_z)magphot.mag;em.opt.Ifloate_ufmag? rms uncertainty on ufmag (fiberMagErr_u)magstat.error;phot.magdoublenullablee_gfmag? rms uncertainty on gfmag (fiberMagErr_g)magstat.error;phot.magdoublenullablee_rfmag? rms uncertainty on rfmag (fiberMagErr_r)magstat.error;phot.magdoublenullablee_ifmag? rms uncertainty on ifmag (fiberMagErr_i)magstat.error;phot.magdoublenullablee_zfmag? rms uncertainty on zfmag (fiberMagErr_z)magstat.error;phot.magdoublenullableuPmagPetrosian u magnitude, AB scale (petroMag_u)magphot.mag;em.opt.UfloatgPmagPetrosian g magnitude, AB scale (petroMag_g)magphot.mag;em.opt.BfloatrPmagPetrosian r magnitude, AB scale (petroMag_r)magphot.mag;em.opt.RfloatiPmagPetrosian i magnitude, AB scale (petroMag_i)magphot.mag;em.opt.IfloatzPmagPetrosian z magnitude, AB scale (petroMag_z)magphot.mag;em.opt.Ifloate_uPmag? rms uncertainty on uPmag (petroMagErr_u)magstat.error;phot.magdoublenullablee_gPmag? rms uncertainty on gPmag (petroMagErr_g)magstat.error;phot.magdoublenullablee_rPmag? rms uncertainty on rPmag (petroMagErr_r)magstat.error;phot.magdoublenullablee_iPmag? rms uncertainty on iPmag (petroMagErr_i)magstat.error;phot.magdoublenullablee_zPmag? rms uncertainty on zPmag (petroMagErr_z)magstat.error;phot.magdoublenullableumag? Model u magnitude, AB scale (modelMag_u)magphot.mag;em.opt.UdoublenullablegmagModel g magnitude, AB scale (modelMag_g)magphot.mag;em.opt.BfloatrmagModel r magnitude, AB scale (modelMag_r)magphot.mag;em.opt.RfloatimagModel i magnitude, AB scale (modelMag_i)magphot.mag;em.opt.IfloatzmagModel z magnitude, AB scale (modelMag_z)magphot.mag;em.opt.Ifloate_umag? rms uncertainty on umag (modelMagErr_u)magstat.error;phot.mag;em.opt.Udoublenullablee_gmag? rms uncertainty on gmag (modelMagErr_g)magstat.error;phot.mag;em.opt.Bdoublenullablee_rmag? rms uncertainty on rmag (modelMagErr_r)magstat.error;phot.mag;em.opt.Rdoublenullablee_imag? rms uncertainty on imag (modelMagErr_i)magstat.error;phot.mag;em.opt.Idoublenullablee_zmag? rms uncertainty on zmag (modelMagErr_z)magstat.error;phot.mag;em.opt.IdoublenullableHelp[Herschel-Stripe-82] Help field (help_field)meta.notechar