II/358ivo://CDS.VizieR/II/358CDSWolf C.Onken C.A.Luvaul L.C.Schmidt B.P.Bessell M.S.Chang S.-W.,Da Costa G.S.Mackey D.Martin-Jones T.Murphy S.J.Preston T.,Scalzo R.A.Shao L.S. JonTisserand P.White M.C.Yuan F.2025-10-16T10:21:47Z2023-12-20T11:54:02ZCDS support team

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

cds-question@unistra.frsurveysphotometryWe present the first data release of the SkyMapper Southern Survey, a hemispheric survey carried out with the SkyMapper Telescope at Siding Spring Observatory in Australia. Here, we present the survey strategy, data processing, catalogue construction, and database schema. The first data release dataset includes over 66000 images from the Shallow Survey component, covering an area of 17200 deg^2^ in all six SkyMapper passbands uvgriz, while the full area covered by any passband exceeds 20000 deg^2^. The catalogues contain over 285 million unique astrophysical objects, complete to roughly 18mag in all bands. We compare our griz point-source photometry with Pan-STARRS1 first data release and note an RMS scatter of 2%. The internal reproducibility of SkyMapper photometry is on the order of 1%. Astrometric precision is better than 0.2arcsec based on comparison with Gaia first data release. We describe the end-user database, through which data are presented to the world community, and provide some illustrative science queries.2018PASA...35...10Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/II/358CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/322 : UCAC4 Catalogue (Zacharias+, 2012)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)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/336 : AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/358https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/358http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/358https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/358https://vizier.iucaa.in/viz-bin/votable?-source=II/358http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/358GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/358/smss (SkyMapper DR1.1)https://vizier.cds.unistra.fr/viz-bin/conesearch/II/358/smss?https://vizier.iucaa.in/viz-bin/conesearch/II/358/smss?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/358/smss?GETtext/xml+votable180.050000true45.2578349110.4712719920.005555555555555556Hips catalogue for table II/358/smsshttps://hipscat.cds.unistra.fr/HiPSCatService/II/358/smss0/8 11 1/16 37 39 43 2/68 72 80 82-84 88 96-97 100 104 114 116 120 144 146-147 154-155 160 167 169-171 3/276 280 292 296 324-326 340 344 356 360 394 396-397 399 404 408 420-421 424 452-453 455 461-463 468 484 488 580-582 608-609 611-612 614-615 644-646 648-649 654-657 660 665-667 673-675 4/256 1108-1110 1112-1114 1124-1126 1128-1130 1172-1174 1176-1178 1188-1190 1192-1194 1309-1311 1364-1365 1368 1380 1384 1428 1432 1444 1446 1448-1450 1568 1570 1573-1574 1580 1582 1593-1595 1620-1622 1624-1625 1636 1640 1642 1688 1692-1693 1695 1700 1704 1706-1707 1728 1730-1731 1736-1738 1794 1796-1797 1801-1803 1805 1819 1840 1842-1843 1876-1877 1880 1888-1890 1892 1896 1940 1944 1956 1960 2332-2334 2440-2441 2443 2452 2454 2588-2590 2600-2601 2603 2606-2609 2614-2615 2632 2634 2636 2639 2644 2646-2647 2649-2652 2654-2655 2657-2659 2689-2691 5/0-2 1028 1032-1034 2050 3072-3074 4444-4446 4460-4462 4464-4466 4508-4510 4524-4526 4528 4530 4544-4546 4700-4702 4716-4718 4720-4722 4764-4765 4780-4782 4784 4800-4802 4864-4866 5464-5466 5468-5469 5471 5476-5478 5480-5482 5524-5526 5528-5530 5540-5542 5544-5546 5716-5718 5720-5722 5732 5734 5736-5738 5780-5782 5804-5806 5808-5810 6276-6278 6284 6286-6287 6291 6326 6332 6334-6335 6368-6369 6371 6492-6494 6504-6506 6512-6514 6548-6550 6552-6554 6564-6566 6572 6574 6756-6758 6760-6762 6777 6804-6806 6808-6810 6820-6822 6842 6916 6918-6919 6956 6960 7040 7171 7173 7181-7183 7196-7197 7200-7201 7217 7226-7228 7230-7231 7266 7268-7269 7271-7273 7364 7366-7367 7512-7514 7517 7524-7526 7528-7530 7565-7567 7572-7574 7576-7578 7588-7590 7592 7594 7764-7766 7768-7770 7780-7782 7784-7786 7828-7830 7832-7834 7844-7846 7848-7850 9340 9342-9343 9768-9770 9813 9815 9821-9823 10364 10367 10408 10410 10416-10417 10419 10421-10423 10440 10444 10446-10449 10451-10453 10532-10533 10535 10540-10541 10543 10548-10550 10552 10554-10555 10580 10582-10583 10592-10593 10612-10613 10625-10627 10752 10754-10755 6/12 16 32 4116-4118 4120-4122 4140 8192 8194 8224 12300 12304 12320 17788 17852 17868 17872 17888 18044 18108 18116-18118 18128 18144 18188 18192 18208 18812 18876 18892 18896 18912 19064-19066 19068 19132 19140-19142 19144-19146 19168 19212 19216 19232 19468 19472 19488 20928-20930 20932-20933 20935-20936 20938-20939 20943 21868 21881 21916 21932 21936 21952 21973 22108 22124 22128 22172 22188 22192 22208 22272 22876 22896 22932-22934 22956 22960 22976 23132 23152 23162 23228 23244 23248 23264 23296 23552 25116-25118 25140 25142-25143 25152-25154 25159 25163 25200-25202 25205-25208 25210-25211 25213 25296-25298 25333-25335 25481-25483 25980 26028 26032 26036-26037 26060 26064 26080 26204 26220 26224 26268 26270 26292 26294-26295 26300 26304 26368 27036-27037 27039 27052 27056 27104-27105 27107 27116-27117 27119 27228 27244 27248 27292 27294-27295 27328 27360 27362-27363 27392 27473 27476-27478 27670 27744 27746 27752 27754 27828-27830 27832-27834 27848-27850 28164-28166 28169 28672-28673 28676 28682-28683 28689 28691 28696 28698 28700-28701 28703 28720 28723 28768 28770-28773 28775-28778 28781-28783 28792 28794-28795 28797-28799 28808-28810 28812-28813 28815 28864 28866 28872 28877 28879 28897-28900 28902-28903 28916-28917 28919 29056-29058 29061 29068 29070-29071 29081-29083 29098-29102 29461-29463 30060 30064-30065 30067 30108 30124 30128 30144 30257-30259 30300 30316 30320 30364 30372-30374 30380 30384 30400 30464 31068 31084 31088 31132 31148 31152 31168 31324 31340 31344 31388 31404 31408 31424 31488 31744 37364-37365 37367 39084 39086-39087 39248-39249 39251 39257-39258 39281-39283 41460 41463-41464 41466-41467 41636-41637 41639 41645 41647 41673-41675 41680 41764-41766 41768 41770-41771 41773-41775 41780 41782-41783 41800 41803 41817-41820 41822-41823 42137-42139 42168-42170 42204-42206 42212-42213 42215 42324-42326 42376-42377 42380-42381 42383 42458-42461 42463 42496-42497 42499 43013 430152.051563660358766e-19 6.023759846367012e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/II/358?format=asciidefaultII/358/table1Properties of SkyMapper DR1 imaging datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordFilter[uvgriz] Filtermeta.id;instr.filtercharlambdacCentral wavelengthnmem.wl.centralintDlambdaWavelenght lengthnmem.wlintRbandReddening coefficient from a Fitzpatrick (1999PASP..111...63F) law with R_V_=3.1phys.absorptionfloatTexpExposure timestime.duration;obs.exposureintNimageNumber of images (1)meta.numberint10slimit10{sigma} limit (in AB mag)magphot.magfloatFWHMPSF FWHM (median values among the 66840 individual exposures)arcsecphys.angSizefloatzeropointImage zeropoint (median values among the 66840 individual exposures) (in AB mag)magstat.fit;arith.zpfloatbkgdBackground level (median values among the 66840 individual exposures)ctinstr.background;phys.atmol.levelintbkgdlimitUpper limit of the background levelctinstr.background;phys.atmol.levelintII/358/smssSkyMapper DR1.1uPSF? Mean u-band PSF magnitude (u_psf)magphot.mag;stat.meanfloatnullableObjectIdGlobal unique object ID in the master table (object_id)meta.id;meta.mainlongindexedRAICRSMean ICRS Right Ascension of the object (raj2000)degpos.eq.ra;meta.mainDEICRSMean ICRS Declination of the object (dej2000)degpos.eq.dec;meta.maine_RAICRSRMS variation around the mean Right Ascension, in milliarcseconds (e_raj2000)masstat.error;pos.eq.rainte_DEICRSRMS variation around the mean Declination, in milliarcseconds (e_dej2000)masstat.error;pos.eq.decintSMSSSkyMapper Southern Survey designation of the form SMSS Jhhmmss.ss+/-ddmmss.s, derived from mean ICRS coordinates (HHMMSS.s+DDMMSS.s) (smss_j)meta.idcharindexedEpMeanMean MJD epoch of the observations (mean_epoch)dtime.epoch;stat.meandoublee_EpMean? RMS variation around the mean epoch (rms_epoch)dstat.stdev;time.epochdoublenullableGLONGalactic 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.latdoubleflags[0/4096] Bitwise OR of Source Extractor flags across all observations (flags) (1)meta.codeintNiflagsTotal number of flagged pixels from bad, saturated, and crosstalk pixel masks across all observations (nimaflags)meta.codeintNgood[1/91] Number of observations used across all filters (ngood)meta.numberintNgoodmin[0/11] Minimum number of observations used in any filter (excluding filters with 0 observations) (ngood_min)meta.numberintNchmax[1/5] Maximum number of child sources combined into this global object_id in any filter (nch_max)meta.numberintflagsu[-1/100] Bitwise OR of Source Extractor flags from u-band measurements in photometry table (u_flags) (1)meta.codeintNiflagsu? Number of flagged pixels from bad, saturated, and crosstalk pixel masks from u-band measurements in photometry table (u_nimaflags)meta.codeintnullableNgooduNumber of u-band observations used (u_ngood)meta.numberintNchu[-1/4] Number of u-band child sources combined into this object_id (u_nch)meta.numberintNvisitu[0/35] Number of u-band observations for which the mean RA/Dec position fell on a CCD (u_nvisit)meta.numberintflagsv[-1/45] Bitwise OR of Source Extractor flags from v-band measurements in photometry table (v_flags) (1)meta.codeintNiflagsv? Number of flagged pixels from bad, saturated, and crosstalk pixel masks from v-band measurements in photometry table (v_nimaflags)meta.codeintnullableNgoodv[0/19] Number of v-band observations used (v_ngood)meta.numberintNchv[-1/4] Number of v-band child sources combined into this object_id (v_nch)meta.numberintNvisitv[0/16] Number of v-band observations for which the mean RA/Dec position fell on a CCD (v_nvisit)meta.numberintflagsg[-1/56] Bitwise OR of Source Extractor flags from g-band measurements in photometry table (g_flags) (1)meta.codeintNiflagsg? Number of flagged pixels from bad, saturated, and crosstalk pixel masks from g-band measurements in photometry table (g_nimaflags)meta.codeintnullableNgoodgNumber of g-band observations used (g_ngood)meta.numberintNchg[-1/4] Number of g-band child sources combined into this object_id (g_nch)meta.numberintNvisitg[0/17] Number of g-band observations for which the mean RA/Dec position fell on a CCD (g_nvisit)meta.numberintflagsr[-1/60] Bitwise OR of Source Extractor flags from r-band measurements in photometry table (r_flags) (1)meta.codeintNiflagsr? Number of flagged pixels from bad, saturated, and crosstalk pixel masks from r-band measurements in photometry table (r_nimaflags)meta.codeintnullableNgoodrNumber of r-band observations used (r_ngood)meta.numberintNchr[-1/5] Number of r-band child sources combined into this object_id (r_nch)meta.numberintNvisitr[0/17] Number of r-band observations for which the mean RA/Dec position fell on a CCD (r_nvisit)meta.numberintflagsi[-1/49] Bitwise OR of Source Extractor flags from i-band measurements in photometry table (i_flags) (1)meta.codeintNiflagsi? Number of flagged pixels from bad, saturated, and crosstalk pixel masks from i-band measurements in photometry table (i_nimaflags)meta.codeintnullableNgoodi[0/16] Number of i-band observations used (i_ngood)meta.numberintNchi[-1/5] Number of i-band child sources combined into this object_id (i_nch)meta.numberintNvisiti[0/12] Number of i-band observations for which the mean RA/Dec position fell on a CCD (i_nvisit)meta.numberintflagsz[-1/50] Bitwise OR of Source Extractor flags from z-band measurements in photometry table (z_flags) (1)meta.codeintNiflagsz? Number of flagged pixels from bad, saturated, and crosstalk pixel masks from z-band measurements in photometry table (z_nimaflags)meta.codeintnullableNgoodz[0/16] Number of z-band observations used (z_ngood)meta.numberintNchz[-1/5] Number of z-band child sources combined into this object_id (z_nch)meta.numberintNvisitz[0/11] Number of z-band observations for which the mean RA/Dec position fell on a CCD (z_nvisit)meta.numberintClassStarMaximum stellarity index from photometry table (between 0=no star and 1=star) (class_star)src.class.starGalaxy;stat.meanfloatRadrPetroMean r-band Petrosian radius (radius_petro)pixphys.angSize;stat.meanfloataMean r-band semi-major axis length (a)pixphys.angSize.smajAxis;stat.meanfloate_aError in mean r-band semi-major axis length (e_a)pixstat.error;phys.angSize.smajAxisfloatbMean r-band semi-minor axis length (b)pixphys.angSize.sminAxis;stat.meanfloate_bError in mean r-band semi-minor axis length (e_b)pixstat.error;phys.angSize.sminAxisfloatPA[-90/90] Mean r-band position angle (E of N, -90..+90 deg) (pa)degpos.posAng;stat.meanfloate_PAError in mean r-band position angle (e_pa)degstat.error;pos.posAngfloate_uPSF? Error in u-band PSF magnitude (e_u_psf)magstat.error;phot.magfloatnullableuPetro? Mean u-band Petrosian magnitude (u_petro)magphot.mag;stat.meanfloatnullablee_uPetro? Error in u-band Petrosian magnitude (e_u_petro)magstat.error;phot.magfloatnullablevPSF? Mean v-band PSF magnitude (v_psf)magphot.mag;em.opt.Vfloatnullablee_vPSF? Error in v-band PSF magnitude (e_v_psf)magstat.errorfloatnullablevPetro? Mean v-band Petrosian magnitude (v_petro)magphot.mag;em.opt.Vfloatnullablee_vPetro? Error in v-band Petrosian magnitude (e_v_petro)magstat.errorfloatnullablegPSF? Mean g-band PSF magnitude (g_psf)magphot.mag;stat.meanfloatnullablee_gPSF? Error in g-band PSF magnitude (e_g_psf)magstat.error;phot.magfloatnullablegPetro? Mean g-band Petrosian magnitude (g_petro)magphot.mag;stat.meanfloatnullablee_gPetro? Error in g-band Petrosian magnitude (e_g_petro)magstat.error;phot.magfloatnullablerPSF? Mean r-band PSF magnitude (r_psf)magphot.mag;stat.meanfloatnullablee_rPSF? Error in r-band PSF magnitude (e_r_psf)magstat.error;phot.magfloatnullablerPetro? Mean r-band Petrosian magnitude (r_petro)magphot.mag;stat.meanfloatnullablee_rPetro? Error in r-band Petrosian magnitude (e_r_petro)magstat.error;phot.magfloatnullableiPSF? Mean i-band PSF magnitude (i_psf)magphot.mag;stat.meanfloatnullablee_iPSF? Error in i-band PSF magnitude (e_i_psf)magstat.error;phot.magfloatnullableiPetro? Mean i-band Petrosian magnitude (i_petro)magphot.mag;stat.meanfloatnullablee_iPetro? Error in i-band Petrosian magnitude (e_i_petro)magstat.error;phot.magfloatnullablezPSF? Mean z-band PSF magnitude (z_psf)magphot.mag;stat.meanfloatnullablee_zPSF? Error in z-band PSF magnitude (e_z_psf)magstat.error;phot.magfloatnullablezPetro? Mean z-band Petrosian magnitude (z_petro)magphot.mag;stat.meanfloatnullablee_zPetro? Error in z-band Petrosian magnitude (e_z_petro)magstat.error;phot.magfloatnullableE(B-V)E(B-V) from Schlegel et al. (1998ApJ...500..525S) extinction maps at the ICRS coordinates (ebmv_sfd)magphot.color.excess;phys.absorptiondoubleProxDistance to next-closest DR1 source (=60 if no sources within 15 arcsec) (prox)arcsecpos.angDistancefloatProxId? object_id of next-closest DR1 source (prox_id)meta.idlongnullableEDRId? object_id of closest Early Data Release source (edr_id)meta.id.crossnullableEDRDist? Distance to closest Early Data Release source (edr_dist)arcsecpos.angDistancefloatnullable2MASSKey1? Unique identifier (pts_key/ext_key) of closest 2MASS source (twomass_key1)meta.id.crossnullable2MASSDist1? Distance on sky to closest 2MASS source (twomass_dist1)arcsecpos.angDistancefloatnullable2MASSCat1[cpsx -] 2MASS catalogue of closest match (point source PSC, or extended XSC) (twomass_cat1)meta.codechar2MASSKey2? Unique identifier (pts_key/ext_key) of second closest 2MASS source (twomass_key2)meta.id.crossnullable2MASSDist2? Distance on sky to second closest 2MASS source (twomass_dist2)arcsecpos.angDistancefloatnullable2MASSCat2[cpsx -] 2MASS catalogue of second closest match (point source PSC, or extended XSC) (twomass_cat2)meta.codecharALLWISECntr? Unique identifier (cntr) of closest AllWISE source (allwise_cntr)meta.id.crossnullableALLWISEDist? Distance on sky to closest AllWISE source (allwise_dist)arcsecpos.angDistancefloatnullableUCAC4Mpos? Unique identifier (mpos) of closest UCAC4 source (ucac4_mpos)meta.id.crosslongnullableUCAC4Dist? Distance on sky to closest UCAC4 source (ucac4_dist)arcsecpos.angDistancefloatnullableAPASSRecno? Unique identifier (recno) of closest APASS DR9 source (only useful for this copy of APASS) (apass_recno)meta.id.crossintnullableAPASSDist? Distance on sky to closest APASS DR9 source (apass_dist)arcsecpos.angDistancefloatnullableGaiadr1Id? Unique identifier (source_id) of closest Gaia DR1 source (gaia_dr1_id)meta.id.crossnullableGaiadr1Dist? Distance on sky to closest Gaia DR1 source (gaia_dr1_dist)arcsecpos.angDistancefloatnullablePS1dr1Id? Unique identifier (objID) of closest Pan-STARRS1 DR1 source (ps1_dr1_id)meta.id.crossnullablePS1dr1Dist? Distance on sky to closest Pan-STARRS1 DR1 source (ps1_dr1_dist)arcsecpos.angDistancefloatnullableGALEXbcsId? Unique identifier (objid) of closest GALEX AIS source (Bianchi et al., 2014, Cat. II/335) (galex_bcs_id)meta.id.crossnullableGALEXbcsDist? Distance on sky to closest GALEX AIS source (galex_bcs_dist)arcsecpos.angDistancefloatnullableGaiadr2Id1? Unique identifier (source_id) of closest Gaia DR2 source (gaia_dr2_id1)meta.id.crossnullableGaiadr2Dist1? Distance on sky to closest Gaia DR2 source (gaia_dr2_dist1)arcsecpos.angDistancefloatnullableGaiadr2Id2? Unique identifier (source_id) of second-closest Gaia DR2 source (gaia_dr2_id2)meta.id.crossnullableGaiadr2Dist2? Distance on sky to second-closest Gaia DR2 source (gaia_dr2_dist2)arcsecpos.angDistancefloatnullable(u-v)PSF? (u_psf-v_psf) color, computed by CDS (uv_psf_color)magphot.colorfloatnullable(u-g)PSF? (u_psf-g_psf) color, computed by CDS (ug_psf_color)magphot.colorfloatnullable(g-r)PSF? (g_psf-r_psf) color, computed by CDS (gr_psf_color)magphot.colorfloatnullable(g-i)PSF? (g_psf-i_psf) color, computed by CDS (gi_psf_color)magphot.colorfloatnullable(i-z)PSF? (i_psf-z_psf) color, computed by CDS (iz_psf_color)magphot.colorfloatnullableII/358/ccdTable of CCD-specific exposure informationNsatpixNumber of saturated pixels on the CCD (nsatpix)meta.numberintSuBr? Surface brightness estimate on the CCD (AB) (sb_mag)mag.arcsec**-2phot.mag.sb;instr.detfloatnullableNphotNumber of objects found on the CCD (phot_nstar)meta.numberintcovRA1CCD RA/Dec coverage array (coverage1)degpos.eq.ra;arith.diffdoublecovDE1CCD RA/Dec coverage array (coverage2)degpos.eq.dec;arith.diffdoublecovRA2CCD RA/Dec coverage array (coverage3)degpos.eq.ra;arith.diffdoublecovDE2CCD RA/Dec coverage array (coverage4)degpos.eq.dec;arith.diffdoublecovRA3CCD RA/Dec coverage array (coverage5)degpos.eq.ra;arith.diffdoublecovDE3CCD RA/Dec coverage array (coverage6)degpos.eq.dec;arith.diffdoubleFilterFilter (filter)meta.id;instr.filtercharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordImageIdUnique image ID as used by the Science Data Pipeline (image_id)meta.id;instr.setupcharCCD[1/32] CCD on which the object was detected (ccd)meta.idintFileNameFilename of image (filename)meta.id;meta.filecharMaskNameFilename of mask (maskname)meta.id;meta.filecharImageUnique image_id in text format (image)meta.id;meta.filecharMJDobsMJD of the exposure (mjd_obs)dtime.epochdoubleindexedFWHMMedian full width at half maximum on the CCD (fwhm)arcsecspect.line.width;stat.mediandoubleelongMedian elongation (A/B) on the CCD (elong)phys.size.axisRatiocovRA4CCD RA/Dec coverage array (coverage7)degpos.eq.ra;arith.diffdoublecovDE4CCD RA/Dec coverage array (coverage8)degpos.eq.dec;arith.diffdoubleII/358/imagesTable of exposures and telescope informationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordImageIdUnique image ID as used by the Science Data Pipeline (image_id)meta.id;meta.mainNightMJDTruncated Modified Julian Date at the start of night (night_mjd)meta.idintDateModified Julian Date at the start of the exposure (date)dtime.epoch;obs.exposuredoubleindexedRAdegRight Ascension of the exposure centre taken from the telescope (ra)degpos.eq.ra;meta.mainDEdegDeclination of the exposure centre taken from the telescope (dcl)degpos.eq.dec;meta.mainFieldIdSkyMapper field ID (field_id)obs.fieldintExpTimeExposure time (exp_time)stime.duration;obs.exposureintAirmassAirmass of the exposure centre taken from the telescope (airmass)obs.airMassdoubleFilter[uvgriz] SkyMapper photometric filter (u,v,g,r,i,z) (filter)instr.filtercharRotposAngular position of the instrument rotator (rotator_pos)degpos.posAng;instr.paramdoubleObjectSurvey/field/image_type identifier (not unique) (object)meta.idImageType[fs] Type of image (fs=Fast Survey) (image_type)meta.code.classcharFWHMAverage full width at half maximum for the exposure (cfwhm)arcsecspect.line.width;stat.meandoubleelongAverage elongation (A/B) for the exposure (elong)phys.size.axisRatioBckgAverage background counts for the exposure (background)ctinstr.background;stat.meandoublezpapproxApproximate photometric zeropoint for the exposure (zpapprox)magphot.mag;arith.zpdoubleII/358/mosaicCCD positions within the SkyMapper mosaicrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordCCDCCD numbermeta.idcharx0Mosaic x-position of CCD pixelpixpos.cartesian.x;instr.detinty0Mosaic y-position of CCD pixelpixpos.cartesian.y;instr.detint