J/ApJS/269/3/sga2020Ellipse-fitting resultsNameUnique galaxy name (GALAXY)meta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPA-LEDAGalaxy position angle (measured east of north); taken from the reference indicated in Ref (PA_LEDA)degpos.posAngfloatD25-LEDA[0.16/63] Major-axis diameter at the 25mag/arcsec^2^ (optical) surface-brightness isophote; taken from the reference indicated in Ref (D25_LEDA)arcminphys.angSizefloatD26[0.06/78] Major axis diameter at the {mu}=26mag/arcsec^2^ r-band isophote (D26)arcminphys.angSizefloatSMASB23.5[0.003/245391]? Semimajor axis length at the r-band 23.5mag/arcsec^2^ isophote (SMA_SB23.5)arcsecphys.angSize.smajAxisdoublenullablee_SMASB23.5[0.003/380471]? SMASB23.5 1{sigma} uncertainty (SMA_SB23.5_ERR)arcsecstat.errordoublenullableSMASB24[0.1/733]? Semimajor axis length at the r-band 24mag/arcsec^2^ isophote (SMA_SB24)arcsecphys.angSize.smajAxisdoublenullablee_SMASB24[0.004/6]? SMASB24 1{sigma} uncertainty (SMA_SB24_ERR)arcsecstat.errorfloatnullableSMASB24.5[0.2/867]? Semimajor axis length at the r-band 24.5mag/arcsec^2^ isophote (SMA_SB24.5)arcsecphys.angSize.smajAxisdoublenullablee_SMASB24.5[0.006/8]? SMASB24.5 1{sigma} uncertainty (SMA_SB24.5_ERR)arcsecstat.errorfloatnullableSMASB25[0.19/702]? Semimajor axis length at the r-band 25mag/arcsec^2^ isophote (SMA_SB25)arcsecphys.angSize.smajAxisdoublenullablee_SMASB25[0.009/7]? SMASB25 1{sigma} uncertainty (SMA_SB25_ERR)arcsecstat.errorfloatnullableSMASB25.5[0.9/774]? Semimajor axis length at the r-band 25.5mag/arcsec^2^ isophote (SMA_SB25.5)arcsecphys.angSize.smajAxisdoublenullablee_SMASB25.5[0.01/13]? SMASB25.5 1{sigma} uncertainty (SMA_SB25.5_ERR)arcsecstat.errorfloatnullableSMASB26[1.9/828]? Semimajor axis length at the r-band 26mag/arcsec^2^ isophote (SMA_SB26)arcsecphys.angSize.smajAxisdoublenullablee_SMASB26[0.01/12]? SMASB26 1{sigma} uncertainty (SMA_SB26_ERR)arcsecstat.errorfloatnullablegmagSB22[8.8/51]? Cumulative g-band brightness measured within SMASB22 (G_MAG_SB22)magphot.mag;em.opt.Bfloatnullablee_gmagSB22[0.0002/27]? gmagSB22 1{sigma} uncertainty (G_MAG_SB22_ERR)magstat.errorfloatnullablermagSB22[8/28.4]? Cumulative r-band brightness measured within SMASB22 (R_MAG_SB22)magphot.mag;em.opt.Rfloatnullablee_rmagSB22[0.0002/3]? rmagSB22 1{sigma} uncertainty (R_MAG_SB22_ERR)magstat.errorfloatnullablermagSB22.5[8/36]? Cumulative r-band brightness measured within SMASB22.5 (R_MAG_SB22.5)magphot.mag;em.opt.Rfloatnullablee_rmagSB22.5[0.0002/12]? rmagSB22.5 1{sigma} uncertainty (R_MAG_SB22.5_ERR)magstat.errorfloatnullablezmagSB22.5[7.5/46.3]? Cumulative z-band brightness measured within SMASB22.5 (Z_MAG_SB22.5)magphot.mag;em.opt.Ifloatnullablee_zmagSB22.5[0.0002/8]? zmagSB22.5 1{sigma} uncertainty (Z_MAG_SB22.5_ERR)magstat.errorfloatnullablegmagSB23[8.8/47]? Cumulative g-band brightness measured within SMASB23 (G_MAG_SB23)magphot.mag;em.opt.Bfloatnullablee_gmagSB23[0.0002/10]? gmagSB23 1{sigma} uncertainty (G_MAG_SB23_ERR)magstat.errorfloatnullablermagSB23[8/34.7]? Cumulative r-band brightness measured within SMASB23 (R_MAG_SB23)magphot.mag;em.opt.Rfloatnullablee_rmagSB23[0.0002/7]? rmagSB23 1{sigma} uncertainty (R_MAG_SB23_ERR)magstat.errorfloatnullablezmagSB23[7.5/51.6]? Cumulative z-band brightness measured within SMASB23 (Z_MAG_SB23)magphot.mag;em.opt.Ifloatnullablee_zmagSB23[0.0002/64]? zmagSB23 1{sigma} uncertainty (Z_MAG_SB23_ERR)magstat.errorfloatnullablee_zmagSB24[0.0002/74]? zmagSB24 1{sigma} uncertainty (Z_MAG_SB24_ERR)magstat.errorfloatnullablegmagSB24.5[8.7/45.3]? Cumulative g-band brightness measured within SMASB24.5 (G_MAG_SB24.5)magphot.mag;em.opt.Bfloatnullablee_gmagSB24.5[0.0002/18]? gmagSB24.5 1{sigma} uncertainty (G_MAG_SB24.5_ERR)magstat.errorfloatnullablermagSB24.5[8/27]? Cumulative r-band brightness measured within SMASB24.5 (R_MAG_SB24.5)magphot.mag;em.opt.Rfloatnullablee_rmagSB24.5[0.0001/3]? rmagSB24.5 1{sigma} uncertainty (R_MAG_SB24.5_ERR)magstat.errorfloatnullablezmagSB24.5[7.4/44.3]? Cumulative z-band brightness measured within SMASB24.5 (Z_MAG_SB24.5)magphot.mag;em.opt.Ifloatnullablee_zmagSB24.5[0.0001/54]? zmagSB24.5 1{sigma} uncertainty (Z_MAG_SB24.5_ERR)magstat.errorfloatnullablegmagSB25[8.7/51.2]? Cumulative g-band brightness measured within SMASB25 (G_MAG_SB25)magphot.mag;em.opt.Bfloatnullablee_gmagSB25[0.0002/16]? gmagSB25 1{sigma} uncertainty (G_MAG_SB25_ERR)magstat.errorfloatnullablermagSB25[8/27.3]? Cumulative r-band brightness measured within SMASB25 (R_MAG_SB25)magphot.mag;em.opt.Rfloatnullablee_rmagSB25[0.0001/5]? rmagSB25 1{sigma} uncertainty (R_MAG_SB25_ERR)magstat.errorfloatnullablezmagSB25[7.6/49]? Cumulative z-band brightness measured within SMASB25 (Z_MAG_SB25)magphot.mag;em.opt.Ifloatnullablee_zmagSB25[0.0001/9]? zmagSB25 1{sigma} uncertainty (Z_MAG_SB25_ERR)magstat.errorfloatnullablegmagSB25.5[8.7/46]? Cumulative g-band brightness measured within SMASB25.5 (G_MAG_SB25.5)magphot.mag;em.opt.Bfloatnullablee_gmagSB25.5[0.0002/23]? gmagSB25.5 1{sigma} uncertainty (G_MAG_SB25.5_ERR)magstat.errorfloatnullablermagSB25.5[8/23.1]? Cumulative r-band brightness measured within SMASB25.5 (R_MAG_SB25.5)magphot.mag;em.opt.Rfloatnullablee_rmagSB25.5[0.0001/1]? rmagSB25.5 1{sigma} uncertainty (R_MAG_SB25.5_ERR)magstat.errorfloatnullablezmagSB25.5[7.6/42.3]? Cumulative z-band brightness measured within SMASB25.5 (Z_MAG_SB25.5)magphot.mag;em.opt.Ifloatnullablee_zmagSB25.5[0.0001/12]? zmagSB25.5 1{sigma} uncertainty (Z_MAG_SB25.5_ERR)magstat.errorfloatnullablegmagSB26[8.6/47.1]? Cumulative g-band brightness measured within SMASB26 (G_MAG_SB26)magphot.mag;em.opt.Bfloatnullablee_gmagSB26[0.0002/28]? gmagSB26 1{sigma} uncertainty (G_MAG_SB26_ERR)magstat.errorfloatnullablermagSB26[8/24.5]? Cumulative r-band brightness measured within SMASB26 (R_MAG_SB26)magphot.mag;em.opt.RfloatnullableFit[0/32] Ellipse-fitting Bitmasks described in Table 3 (ELLIPSEBIT) (7)meta.codeintSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharLEDAmeta.ref.urlcharID[2/5005247] SGA unique identification number (SGA_ID)meta.id;meta.mainintPGC[1/6740716]? Unique identifier from the Principal Catalogue of Galaxies (Paturel+ 1989, VII/119 ; obsoleted by VII/237) (PGC)meta.idintnullableRALdegRight ascension (J2000) from the reference indicated in Ref (RA_LEDA)degpos.eq.raDELdegDeclination (J2000) from the reference indicated in Ref (DEC_LEDA)degpos.eq.dece_rmagSB26[0.0001/7]? rmagSB26 1{sigma} uncertainty (R_MAG_SB26_ERR)magstat.errorfloatnullableMTypeVisual morphological type from HyperLeda (if available) (MORPHTYPE)src.morph.typecharb/a-LEDA[0.03/1] Ratio of the semiminor axis to the semimajor axis; taken from the reference indicated in Ref (BA_LEDA)phys.size.axisRatiofloatz-LEDA[-0.003/4.4]? Heliocentric redshift from HyperLeda; a NULL value does not imply that no redshift exists (Z_LEDA)src.redshiftdoublenullableSBD25-LEDA[14.5/31.7] Mean surface brightness based on D25-LEDA and mag-LEDA (SB_D25_LEDA)mag.arcsec**-2phot.mag.sbfloatmag-LEDA[6.3/25] Apparent b_t_-band Vega magnitude (MAG_LEDA) (1)magphot.mag;em.opt.BfloatByHand[0/1] Boolean flag indicating whether one or more of RALdeg, DELdeg, D25-LEDA, PA-LEDA, b/a-LEDA, or mag-LEDA were changed from their published values (usually via visual inspection) while building the parent samplemeta.codeintGroupID[0/531676] Unique group identification number (GROUP_ID)meta.idintNm[1/13] Number of group members (i.e., group multiplicity) (GROUP_MULT)meta.numberintPrim[0/1] Boolean flag indicating the primary (i.e., largest) group member (GROUP_PRIMARY)meta.codeintRAGdegMean R.A. of the group weighted by D25-LEDA (GROUP_RA)degpos.eq.raDEGdegMean decl. of the group weighted by D25-LEDA (GROUP_DEC)degpos.eq.decGrDiam[0.16/63] Approximate group diameter (see Section 2.2) (GROUP_DIAMETER)arcminphys.angSize;pos.lgfloatBrickNameName of custom Tractor "brick," encoding the sky position (e.g., "1126p222" is centered on RA=112.6,DE=+22.2) (BRICKNAME)meta.idcharRAJ2000Right ascension (J2000) based on The Tractor model fit (RA)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) based on The Tractor model fit (DEC)degpos.eq.dec;meta.mainindexedPAGalaxy position angle (measured east of north), as measured from the ellipse moments (see Section 3.2.3); equivalent to PA-LEDA if the ellipse moments could not be measured (PA)degpos.posAngfloatb/a[0.06/1] Minor-to-major axis ratio, as measured from the ellipse moments; equivalent to b/a-LEDA if the ellipse moments could not be measured (BA)phys.size.axisRatiofloatRAMdegLight-weighted R.A. (J2000), as measured from the ellipse moments (RA_MOMENT) (4)degpos.eq.raDEMdegLight-weighted decl. (J2000), as measured from the ellipse moments (DEC_MOMENT) (4)degpos.eq.decSMA-Moment[0.3/1084]? Second moment of the light distribution along the major axis based on the measured ellipse moments (SMA_MOMENT) (5)arcsecphys.angSizedoublenullablegSMA50[0/93493]? Half-light semimajor axis length based on Equation-2 in g-band (G_SMA50)arcsecphys.angSize;srcdoublenullablerSMA50[0/62331]? Half-light semimajor axis length based on Equation-2 in r-band (R_SMA50)arcsecphys.angSize;srcdoublenullablezSMA50[0/7e+9]? Half-light semimajor axis length based on Equation-2 in z-band (Z_SMA50)arcsecphys.angSize;srcdoublenullableSMASB22[0.03/1901]? Semimajor axis length at the r-band 22mag/arcsec^2^ isophote (SMA_SB22)arcsecphys.angSize.smajAxisdoublenullablee_SMASB22[0.001/3763]? SMASB22 1{sigma} uncertainty (SMA_SB22_ERR)arcsecstat.errordoublenullableSMASB22.5[0.003/104140]? Semimajor axis length at the r-band 22.5mag/arcsec^2^ isophote (SMA_SB22.5)arcsecphys.angSize.smajAxisdoublenullablee_SMASB22.5[0.002/349384]? SMASB22.5 1{sigma} uncertainty (SMA_SB22.5_ERR)arcsecstat.errordoublenullableSMASB23[0.005/147363]? Semimajor axis length at the r-band 23mag/arcsec^2^ isophote (SMA_SB23)arcsecphys.angSize.smajAxisdoublenullablee_SMASB23[0.002/318385]? SMASB23 1{sigma} uncertainty (SMA_SB23_ERR)arcsecstat.errordoublenullablezmagSB22[7.6/43.4]? Cumulative z-band brightness measured within SMASB22 (Z_MAG_SB22)magphot.mag;em.opt.Ifloatnullablee_zmagSB22[0/4]? zmagSB22 1{sigma} uncertainty (Z_MAG_SB22_ERR)magstat.errorfloatnullablegmagSB22.5[8.8/49.1]? Cumulative g-band brightness measured within SMASB22.5 (G_MAG_SB22.5)magphot.mag;em.opt.Bfloatnullablee_gmagSB22.5[0.0002/1]? gmagSB22.5 1{sigma} uncertainty (G_MAG_SB22.5_ERR)magstat.errorfloatnullablegmagSB23.5[8.7/48.1]? Cumulative g-band brightness measured within SMASB23.5 (G_MAG_SB23.5)magphot.mag;em.opt.Bfloatnullablee_gmagSB23.5[0.0002/7]? gmagSB23.5 1{sigma} uncertainty (G_MAG_SB23.5_ERR)magstat.errorfloatnullablermagSB23.5[8/35]? Cumulative r-band brightness measured within SMASB23.5 (R_MAG_SB23.5)magphot.mag;em.opt.Rfloatnullablee_rmagSB23.5[0.0001/9]? rmagSB23.5 1{sigma} uncertainty (R_MAG_SB23.5_ERR)magstat.errorfloatnullablezmagSB23.5[7.5/43.4]? Cumulative z-band brightness measured within SMASB23.5 (Z_MAG_SB23.5)magphot.mag;em.opt.Ifloatnullablee_zmagSB23.5[0.0002/9]? zmagSB23.5 1{sigma} uncertainty (Z_MAG_SB23.5_ERR)magstat.errorfloatnullablegmagSB24[8.7/46]? Cumulative g-band brightness measured within SMASB24 (G_MAG_SB24)magphot.mag;em.opt.Bfloatnullablee_gmagSB24[0.0002/2]? gmagSB24 1{sigma} uncertainty (G_MAG_SB24_ERR)magstat.errorfloatnullablermagSB24[8/28.5]? Cumulative r-band brightness measured within SMASB24 (R_MAG_SB24)magphot.mag;em.opt.Rfloatnullablee_rmagSB24[0.0001/3]? rmagSB24 1{sigma} uncertainty (R_MAG_SB24_ERR)magstat.errorfloatnullablezmagSB24[7.4/43.4]? Cumulative z-band brightness measured within SMASB24 (Z_MAG_SB24)magphot.mag;em.opt.IfloatnullablezmagSB26[7.6/23]? Cumulative z-band brightness measured within SMASB26 (Z_MAG_SB26)magphot.mag;em.opt.Ifloatnullablee_zmagSB26[0.0001/133]? zmagSB26 1{sigma} uncertainty (Z_MAG_SB26_ERR)magstat.errordoublenullablegCOG-m1[7.6/45.1]? Best-fitting curve-of-growth parameter m_tot_ from Equation-1 in g-band (G_COG_PARAMS_MTOT) (6)magstat.fit.paramfloatnullablegCOG-m0[1.5e-07/4.3e+11]? Best-fitting curve-of-growth parameter m0 from Equation-1 in g-band (G_COG_PARAMS_M0) (6)magstat.fit.paramdoublenullablegCOG-alp1[3.5e-10/6.2e+15]? Best-fitting curve-of-growth parameter {alpha}1 from Equation-1 in g-band (G_COG_PARAMS_ALPHA1) (6)stat.fit.paramdoublenullablegCOG-alp2[0/169]? Best-fitting curve-of-growth parameter {alpha}2 from Equation-1 in g-band (G_COG_PARAMS_ALPHA2) (6)stat.fit.paramdoublenullablegCOG-Chi2[0/463626]? {Chi}^2^ of the fit to the curve of growth in g-band (see Section 3.2.3) (G_COG_PARAMS_CHI2)stat.fit.paramdoublenullablerCOG-m1[7.5/23.5]? Best-fitting curve-of-growth parameter m_tot_ from Equation-1 in r-band (R_COG_PARAMS_MTOT) (6)magstat.fit.paramfloatnullablerCOG-m0[5.6e-7/2.1e+13]? Best-fitting curve-of-growth parameter m0 from Equation-1 in r-band (R_COG_PARAMS_M0) (6)magstat.fit.paramdoublenullablerCOG-alp1[7.5e-9/1.5e+16]? Best-fitting curve-of-growth parameter {alpha}1 from Equation-1 in r-band (R_COG_PARAMS_ALPHA1) (6)stat.fit.paramdoublenullablerCOG-alp2[0/183]? Best-fitting curve-of-growth parameter {alpha}2 from Equation-1 in r-band (R_COG_PARAMS_ALPHA2) (6)stat.fit.paramdoublenullablerCOG-Chi2[0/572291]? {Chi}^2^ of the fit to the curve of growth in r-band (see Section 3.2.3) (R_COG_PARAMS_CHI2)stat.fit.paramdoublenullablezCOG-m1[6.9/40.4]? Best-fitting curve-of-growth parameter m_tot_ from Equation-1 in z-band (Z_COG_PARAMS_MTOT) (6)magstat.fit.paramfloatnullablezCOG-m0[7.6e-8/4e+12]? Best-fitting curve-of-growth parameter m0 from Equation-1 in z-band (Z_COG_PARAMS_M0) (6)magstat.fit.paramdoublenullablezCOG-alp1[2.7e-10/6e+15]? Best-fitting curve-of-growth parameter {alpha}1 from Equation-1 in z-band (Z_COG_PARAMS_ALPHA1) (6)stat.fit.paramdoublenullablezCOG-alp2[0/197]? Best-fitting curve-of-growth parameter {alpha}2 from Equation-1 in z-band (Z_COG_PARAMS_ALPHA2) (6)stat.fit.paramdoublenullablezCOG-Chi2[0/405272]? {Chi}^2^ of the fit to the curve of growth in z-band (see Section 3.2.3) (Z_COG_PARAMS_CHI2)stat.fit.paramdoublenullableRefReference indicating the origin of the object (REF) (2)meta.ref;pos.framecharGroupGroup name, constructed from the name of its largest member (see Section 2.2). For isolated galaxies, identical to Name (GROUP_NAME)meta.id.parentcharr_D26Reference indicating the origin of the DIAM measurement: SB26, SB25, or LEDA (D26_REF) (3)meta.ref;pos.framechar