II/379ivo://CDS.VizieR/II/379CDSOnken C.A.Wolf C.Bessell M.S.Chang S.-W.Luvaul L.C.Tonry J.L.,White M.C.Da Costa G.S.2024-02-27T09:51:56Z2024-02-06T13:27:44ZCDS support team

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

cds-question@unistra.frsurveysphotometryvisible-astronomyWe present the fourth data release (DR4) of the SkyMapper Southern Survey (SMSS), the last major step in our hemispheric survey with six optical filters: u, v, g, r, i, z. SMSS DR4 covers 26000 sq.deg from over 400,000 images acquired by the 1.3m SkyMapper telescope between 2014-03 and 2021-09. The 6-band sky coverage extends from the South Celestial Pole to Dec=+16deg, with some images reaching Dec~+28deg. In contrast to previous DRs, we include all good-quality images from the facility taken during that time span, not only those explicitly taken for the public Survey. From the image dataset, we produce a catalogue of nearly 13 billion detections made from ~700 million unique astrophysical objects. The typical 10sigma depths for each field range between 18.5 and 20.5mag, depending on the filter, but certain sky regions include longer exposures that reach as deep as 22mag in some filters. As with previous SMSS catalogues, we have cross-matched with a host of other imaging and spectroscopic datasets to facilitate additional science outcomes. SMSS DR4 is now available to the worldwide astronomical community.2024arXiv240202015Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/II/379CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/350 : Gaia DR3 (Gaia Collaboration, 2022)II/328 : AllWISE Data Release (Cutri+ 2013)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/335 : Revised catalog of GALEX UV sources, GUVcat_AIS GR6+7 (Bianchi+ 2017)II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)II/367 : The VISTA Hemisphere Survey (VHS) catalog DR5 (McMahon+, 2020)II/371 : The Dark Energy Survey (DES): Data Release 2 (Abbott+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/379https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/379http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/379https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/379https://vizier.iucaa.in/viz-bin/votable?-source=II/379http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/379GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/379/smssdr4 (SkyMapper DR4)https://vizier.cds.unistra.fr/viz-bin/conesearch/II/379/smssdr4?https://vizier.iucaa.in/viz-bin/conesearch/II/379/smssdr4?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/379/smssdr4?GETtext/xml+votable180.050000true44.99613810.005556940.0055555555555555560/8-11 1/16 20 22 24 28 2/16 68-70 72-74 84-86 100-102 104-106 116-118 120-122 3/0-2 128-130 192-194 284-286 300-302 304-306 348-350 368-370 412-414 428-430 432-434 476-478 492-494 496-498 4/12-14 16-18 32-34 272-274 280 282 288-290 292-293 295-296 304 524-526 528-530 544-546 780-782 784-786 800-802 1148-1150 1212-1214 1228-1230 1232-1234 1248-1250 1404-1406 1484 1486 1488-1490 1504-1506 1660-1662 1724-1726 1740-1742 1744-1746 1760-1762 1916-1918 1980-1982 1996-1998 2000-2002 2016-2018 5/60 76 80 84-85 96 140 144 160 275 1100 1104 1132 1134 1164 1177 1179 1192 1205 1220-1222 1224-1226 1248 1250-1251 1553-1554 2108 2124 2128 2144 2188 2192 2208 3132 3148 3152 3168 3173 3184 3212 3216 3232 4604 4860 4924 4940 4944 4960 5004 5008 5024 5628-5629 5940-5942 5948 5950 5964 5968 5984 6028 6032-6033 6048 6056 6058 6652 6908 6972 6988 6992 7008 7052 7056 7072 7676 7932 7996 8012 8016 8032 8038 8044 8076-8077 8080 8088 8096 6/244-246 248-250 308-310 312-314 324-326 328-330 345 348 388-390 392-394 564-566 568-570 580-582 584 586 644-646 648-650 1024 1077-1079 1085 1094-1095 1097-1099 1120-1122 1124 1128 4404-4406 4408-4410 4420-4422 4424-4426 4506 4540 4542 4660-4662 4664-4666 4704-4705 4707 4713 4760 4762 4772-4774 4776-4777 4817 4819 4828-4829 4892-4894 4908-4910 4912-4914 4930 4998 5024-5025 5028 6175 6197 6211 6220 6222 6240-6241 8436-8438 8440-8442 8500-8502 8504-8506 8516-8518 8520-8522 8580-8582 8584-8586 8756-8758 8760-8762 8772-8774 8776-8778 8836-8838 8840-8842 12532-12534 12536-12538 12596-12598 12600-12602 12605-12607 12612-12614 12616-12618 12648 12650-12651 12676-12678 12680-12682 12701 12852-12854 12856-12858 12868-12870 12872-12874 12932-12934 12936-12938 18420-18422 18424-18426 19444-19446 19448-19450 19700-19702 19704-19706 19764-19766 19768-19770 19780-19782 19784-19786 19844-19846 19848-19850 20020-20022 20024-20026 20036-20038 20040-20042 20100-20102 20104-20106 22520-22522 23772-23774 23796 23798 23804-23806 23860-23862 23864-23866 23876-23878 23880-23882 23940 23942 23944-23945 24116-24118 24120-24121 24136-24138 24144-24146 24196-24198 24200-24202 24230 24236 26612-26614 26616-26618 27636-27638 27640-27642 27892-27894 27896-27898 27956-27958 27960-27962 27972-27974 27976-27978 28036-28038 28040-28042 28212-28214 28216-28218 28228-28230 28232-28234 28292-28294 28296-28298 30708-30710 30712-30714 31732-31734 31736-31738 31988-31990 31992-31994 32052-32054 32056-32058 32068-32070 32072-32074 32132-32134 32136-32138 32141 32143 32146-32147 32156 32158-32159 32165 32180 32312-32314 32317 32324-32326 32328-32330 32360 32388-32390 32392-323942.051563660358766e-19 6.023759846367012e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/II/379?format=asciiOpticaldefaultII/379/smssdr4SkyMapper DR4SMSSSkyMapper Southern Survey designation of the form SMSS Jhhmmss.ss+/-ddmmss.s derived from mean ICRS coordinates (smss_j)meta.idcharindexedflagsiBitwise OR of Source Extractor flags from i-band measurements in photometry table (i_flags)meta.codeintzPSF? Weighted mean z-band PSF magnitude (z_psf)magphot.mag;stat.meanfloatnullableDES2IdUnique identifier (coadd_object_id) of closest DES DR2 source (des_dr2_id)meta.id.crossRAICRSMean ICRS Right Ascension of the object (ICRS, Ep=J2000) (raj2000)degpos.eq.ra;meta.mainDEICRSMean ICRS Declination of the object (ICRS, Ep=J2000) (dej2000)degpos.eq.dec;meta.mainObjectIdGlobal unique object ID in the master table (object_id)meta.id;meta.mainindexede_RAICRSRMS variation around the mean Right Ascension (e_raj2000)masstat.stdev;pos.eq.rainte_DEICRSRMS variation around the mean Declination (e_dej2000)masstat.stdev;pos.eq.decintEpMeanMean MJD epoch of the observations (mean_epoch)dtime.epoch;stat.meandoublee_EpMeanRMS variation around the mean epoch (rms_epoch)dstat.stdev;time.epochdoubleGLONGalactic longitude derived from ICRS coordinates. Not to be used as primary astrometric reference. (glon)degpos.galactic.lonGLATGalactic latitude derived from ICRS coordinates. Not to be used as primary astrometric reference. (glat)degpos.galactic.latdoubleNiflagsTotal number of flagged pixels from bad or saturated or crosstalk-affected pixel masks across all observations (nimaflags)meta.codeintflagsBitwise OR of Source Extractor flags across all observations (flags)meta.codeintNgoodNumber of observations used across all filters (ngood)meta.numberintNgoodminMinimum number of observations used in any filter (excluding filters with 0 observations) (ngood_min)meta.numberintflagsuBitwise OR of Source Extractor flags from u-band measurements in photometry table (u_flags)meta.codeintNiflagsuNumber of flagged pixels from bad or saturated or crosstalk-affected pixels masks from u-band measurements in photometry table (u_nimaflags)meta.codeintNgooduNumber of u-band observations used (u_ngood)meta.numberintNnclipuNumber of u-band observations with magnitudes clipped from the final PSF magnitude estimate (u_nclip)meta.numberintflagsvBitwise OR of Source Extractor flags from v-band measurements in photometry table (v_flags)meta.codeintNiflagsvNumber of flagged pixels from bad or saturated or crosstalk-affected pixels masks from v-band measurements in photometry table (v_nimaflags)meta.codeintNgoodvNumber of v-band observations used (v_ngood)meta.numberintNnclipvNumber of v-band observations with magnitudes clipped from the final PSF magnitude estimate (v_nclip)meta.numberintflagsgBitwise OR of Source Extractor flags from g-band measurements in photometry table (g_flags)meta.codeintNiflagsgNumber of flagged pixels from bad or saturated or crosstalk-affected pixels masks from g-band measurements in photometry table (g_nimaflags)meta.codeintNgoodgNumber of g-band observations used (g_ngood)meta.numberintNnclipgNumber of g-band observations with magnitudes clipped from the final PSF magnitude estimate (g_nclip)meta.numberintflagsrBitwise OR of Source Extractor flags from r-band measurements in photometry table (r_flags)meta.codeintNiflagsrNumber of flagged pixels from bad or saturated or crosstalk-affected pixels masks from r-band measurements in photometry table (r_nimaflags)meta.codeintNgoodrNumber of r-band observations used (r_ngood)meta.numberintNncliprNumber of r-band observations with magnitudes clipped from the final PSF magnitude estimate (r_nclip)meta.numberintNiflagsiNumber of flagged pixels from bad or saturated or crosstalk-affected pixels masks from i-band measurements in photometry table (i_nimaflags)meta.codeintNgoodiNumber of i-band observations used (i_ngood)meta.numberintNnclipiNumber of i-band observations with magnitudes clipped from the final PSF magnitude estimate (i_nclip)meta.numberintflagszBitwise OR of Source Extractor flags from z-band measurements in photometry table (z_flags)meta.codeintNiflagszNumber of flagged pixels from bad or saturated or crosstalk-affected pixels masks from z-band measurements in photometry table (z_nimaflags)meta.codeintNgoodzNumber of z-band observations used (z_ngood)meta.numberintNnclipzNumber of z-band observations with magnitudes clipped from the final PSF magnitude estimate (z_nclip)meta.numberintClassStarMaximum stellarity index from photometry table (between 0=no star and 1=star) (class_star)src.class.starGalaxy;stat.maxfloatchi2PSF? Maximum chi-squared from photometry table (chi2_psf)stat.fit.chi2;stat.maxdoublenullableRadrPetro? Mean r-band Petrosian radius (radius_petro)pixphys.angSize;stat.meanfloatnullableFWHMMean FWHM of detections (mean_fwhm)pixphys.angSize;stat.meandoubleuPSF? Weighted mean u-band PSF magnitude (u_psf)magphot.mag;stat.meanfloatnullablee_uPSF? Error in weighted mean u-band PSF magnitude (e_u_psf)magstat.error;phot.magfloatnullableuPetro? Weighted mean u-band Petrosian magnitude (u_petro)magphot.mag;stat.meanfloatnullablee_uPetro? Error in weighted mean u-band Petrosian magnitude (e_u_petro)magstat.error;phot.magdoublenullableuapc05? Weighted mean u-band aperture-corrected magnitude from flux in 5 arcsec diameter (u_apc05)magphot.mag;stat.meanfloatnullablee_uapc05? Error in weighted mean u-band aperture-corrected magnitude from flux in 5 arcsec diameter (e_u_apc05)magstat.error;phot.magfloatnullableummvar? Magnitude range between minimum and maximum unclipped u-band PSF magnitudes (u_mmvar)magphot.mag;statfloatnullablevPSF? Weighted mean v-band PSF magnitude (v_psf)magphot.mag;stat.meanfloatnullablee_vPSF? Error in weighted mean v-band PSF magnitude (e_v_psf)magstat.error;phot.magfloatnullablevPetro? Weighted mean v-band Petrosian magnitude (v_petro)magphot.mag;stat.meanfloatnullablee_vPetro? Error in weighted mean v-band Petrosian magnitude (e_v_petro)magstat.error;phot.magdoublenullablevapc05? Weighted mean v-band aperture-corrected magnitude from flux in 5 arcsec diameter (v_apc05)magphot.mag;stat.meanfloatnullablee_vapc05? Error in weighted mean v-band aperture-corrected magnitude from flux in 5 arcsec diameter (e_v_apc05)magstat.error;phot.magfloatnullablevmmvar? Magnitude range between minimum and maximum unclipped v-band PSF magnitudes (v_mmvar)magphot.mag;statfloatnullablegPSF? Weighted mean g-band PSF magnitude (g_psf)magphot.mag;stat.meanfloatnullablee_gPSF? Error in weighted mean g-band PSF magnitude (e_g_psf)magstat.error;phot.magfloatnullablegPetro? Weighted mean g-band Petrosian magnitude (g_petro)magphot.mag;stat.meanfloatnullablee_gPetro? Error in weighted mean g-band Petrosian magnitude (e_g_petro)magstat.error;phot.magdoublenullablegapc05? Weighted mean g-band aperture-corrected magnitude from flux in 5 arcsec diameter (g_apc05)magphot.mag;stat.meanfloatnullablee_gapc05? Error in weighted mean g-band aperture-corrected magnitude from flux in 5 arcsec diameter (e_g_apc05)magstat.error;phot.magfloatnullablegmmvar? Magnitude range between minimum and maximum unclipped g-band PSF magnitudes (g_mmvar)magphot.mag;statfloatnullablerPSF? Weighted mean r-band PSF magnitude (r_psf)magphot.mag;stat.meanfloatnullablee_rPSF? Error in weighted mean r-band PSF magnitude (e_r_psf)magstat.error;phot.magfloatnullablerPetro? Weighted mean r-band Petrosian magnitude (r_petro)magphot.mag;stat.meanfloatnullablee_rPetro? Error in weighted mean r-band Petrosian magnitude (e_r_petro)magstat.error;phot.magdoublenullablee_iapc05? Error in weighted mean i-band aperture-corrected magnitude from flux in 5 arcsec diameter (e_i_apc05)magstat.error;phot.magfloatnullableimmvar? Magnitude range between minimum and maximum unclipped i-band PSF magnitudes (i_mmvar)magphot.mag;statfloatnullablee_zPSF? Error in weighted mean z-band PSF magnitude (e_z_psf)magstat.error;phot.magfloatnullablerapc05? Weighted mean r-band aperture-corrected magnitude from flux in 5 arcsec diameter (r_apc05)magphot.mag;stat.meanfloatnullablee_rapc05? Error in weighted mean r-band aperture-corrected magnitude from flux in 5 arcsec diameter (e_r_apc05)magstat.error;phot.magfloatnullablermmvar? Magnitude range between minimum and maximum unclipped -band PSF magnitudes (r_mmvar)magphot.mag;statfloatnullableiPSF? Weighted mean i-band PSF magnitude (i_psf)magphot.mag;stat.meanfloatnullablee_iPSF? Error in weighted mean i-band PSF magnitude (e_i_psf)magstat.error;phot.magfloatnullableiPetro? Weighted mean i-band Petrosian magnitude (i_petro)magphot.mag;stat.meanfloatnullablee_iPetro? Error in weighted mean i-band Petrosian magnitude (e_i_petro)magstat.error;phot.magdoublenullableiapc05? Weighted mean i-band aperture-corrected magnitude from flux in 5 arcsec diameter (i_apc05)magphot.mag;stat.meanfloatnullablezPetro? Weighted mean z-band Petrosian magnitude (z_petro)magphot.mag;stat.meanfloatnullablee_zPetro? Error in weighted mean z-band Petrosian magnitude (e_z_petro)magstat.error;phot.magdoublenullablezapc05? Weighted mean z-band aperture-corrected magnitude from flux in 5 arcsec diameter (z_apc05)magphot.mag;stat.meanfloatnullablee_zapc05? Error in weighted mean z-band aperture-corrected magnitude from flux in 5 arcsec diameter (e_z_apc05)magstat.error;phot.magfloatnullablezmmvar? Magnitude range between minimum and maximum unclipped z-band PSF magnitudes (z_mmvar)magphot.mag;statfloatnullableselfId1Unique identifier (object_id) of closest SMSS DR4 source (self_id1)meta.id.crossselfId2Unique identifier (object_id) of second-closest SMSS DR4 source (self_id2)meta.id.crossselfId3Unique identifier (object_id) of third-closest SMSS DR4 source (self_id3)meta.id.crossselfDist1Distance on sky to closest SMSS DR4 source (self_dist1)arcsecpos.angDistancefloatselfDist2Distance on sky to second-closest SMSS DR4 source (self_dist2)arcsecpos.angDistancefloatselfDist4Distance on sky to third-closest SMSS DR4 source (self_dist3)arcsecpos.angDistancefloatNself-15Number of SMSS DR4 sources within 15 arcsec (cnt_self_15)meta.numberintRefcat2IdUnique identifier (objid) of closest ATLAS Refcat2 source (only useful for this copy of Refcat2) (refcat2_id)meta.id.crosslongGaia3Id1Unique identifier (source_id) of closest Gaia DR3 source (gaia_dr3_id1)meta.id.crossGaia3Id2Unique identifier (source_id) of second-closest Gaia DR3 source (gaia_dr3_id2)meta.id.crossALLWISECntrUnique identifier (cntr) of closest AllWISE source (allwise_cntr)meta.id.crossPS1dr1IdUnique identifier (objid) of closest Pan-STARRS1 DR1 source (ps1_dr1_id)meta.id.crossGALEXIdUnique identifier (objid) of closest GALEX GUVcat AIS source (Bianchi et al. 2017) (galex_guv_id)meta.id.crossVHS6IdUnique identifier (objid) of closest VHS DR6 source (vhs_dr6_id)meta.id.crossLS9IdUnique identifier (unique_id) of closest Legacy Survey DR9 source (ls_dr9_id)meta.id.cross2MASSKeyUnique identifier (pts_key) of closest 2MASS PSC source (twomass_key)meta.id.crossr-i? r-i colour (r_psf-i_psf) (r_i)magphot.colordoublenullablei-z? i-z colour (i_psf-z_psf) (i_z)magphot.colordoublenullableRefcat2Dist? Distance on sky to closest ATLAS Refcat2 source (refcat2_dist)arcsecpos.angDistancefloatnullableGaia3Dist1? Distance on sky to closest Gaia DR3 source (gaia_dr3_dist1)arcsecpos.angDistancefloatnullableGaia3Dist2? Distance on sky to second-closest Gaia DR3 source (gaia_dr3_dist2)arcsecpos.angDistancefloatnullableCATWISEDist? Distance on sky to closest CatWISE2020 source (catwise_dist)arcsecpos.distancefloatnullablePS1dr1Dist? Distance on sky to closest Pan-STARRS1 DR1 source (ps1_dr1_dist)arcsecpos.angDistancefloatnullableGALEXDist? Distance on sky to closest GALEX GUVcat AIS source (galex_guv_dist)arcsecpos.angDistancefloatnullableVHS6Dist? Distance on sky to closest VHS DR6 source (vhs_dr6_dist)arcsecpos.angDistancefloatnullableLS9Dist? Distance on sky to closest Legacy Survey DR9 source (ls_dr9_dist)arcsecpos.angDistancefloatnullableDES2Dist? Distance on sky to closest DES DR2 source (des_dr2_dist)arcsecpos.angDistancenullableALLWISEDist? Distance on sky to closest AllWISE source (allwise_dist)arcsecpos.angDistancefloatnullable2MASSDist? Distance on sky to closest 2MASS PSC source (twomass_dist)arcsecpos.angDistancefloatnullableNSC2Dist? Distance on sky to closest NSC DR2 source (nsc_dr2_dist)arcsecpos.angDistancefloatnullableSPLUS3Dist? Distance on sky to closest S-PLUS DR3 source (splus_dr3_dist)arcsecpos.angDistancefloatnullableE(B-V)sfdE(B-V) from Schlegel+1998 extinction maps at the ICRS coordinates (ebmv_sfd)magphot.color.excess;phys.absorptiondoubleE(B-V)gnilcE(B-V) from Planck satellite GNILC reddening maps at the ICRS coordinates (ebmv_gnilc)magphot.color.excess;phys.absorptiondoublee_E(B-V)gnilcError in the E(B-V) from GNILC (ebmv_g_err)magstat.error;phot.color.excess;phys.absorptionfloatflagsPSFBitmask indicating whether photometry is likely biased by neighbours at >1%; bits 0-5 correspond to filters z-u (flags_psf)meta.codeintNGaia3-15Number of Gaia DR3 sources within 15 arcsec (cnt_gaia_dr3_15)meta.numberintALLWISEIdUnique identifier (id) of closest CatWISE2020 source (catwise_id)meta.id.crosscharNSC2IdUnique identifier (id) of closest NSC DR2 source (nsc_dr2_id)meta.id.crosscharSPLUS3IdUnique identifier of closest S-PLUS DR3 source (splus_dr3_id)meta.id.crosscharu-v? u-v colour (u_psf-v_psf) (u_v)magphot.colordoublenullablev-g? v-g colour (v_psf-g_psf) (v_g)magphot.colordoublenullableg-r? g-r colour (g_psf-r_psf) (g_r)magphot.colordoublenullable