II/306/sdss8* output of the SDSS photometric catalogobjIDSDSS unique object identifier (2)meta.id;meta.mainprimarymode[1,2] 1: primary (469,053,874 sources), 2: secondary (324,960,076 sources).meta.code.classintSpObjIDPointer to the spectrum of object, or 0 (7)meta.idSDSS8SDSS-DR8 name, based on J2000 positionmeta.idcharindexedRA_ICRSRight Ascension of the object (ICRS) (ra)degpos.eq.ra;meta.mainindexede_RA_ICRSMean error on RAdeg (raErr)arcsecstat.error;pos.eq.radoubleDE_ICRSDeclination of the object (ICRS) (dec)degpos.eq.dec;meta.mainindexede_DE_ICRSMean error on DEdeg (decErr)arcsecstat.error;pos.eq.decdoubleq_mode[+] '+' indicates clean photometry (105,969,748 sources with mode 1+)meta.code.qual;instr.setupcharclType (class) of object (3=galaxy, 6=star) (1)src.classintm_SDSS8[*] The asterisk indicates that 2 different SDSS objects share the same SDSS8 namemeta.code.multipcharImImage from SDSS-serveurmeta.ref.urlcharR[8] Release inclusion (all observations were reprocessed, value is always 8)meta.noteintSDSS-ID[0-9 -] SDSS object identifier (2)meta.idcharparentIDPointer to parent (if object deblended)meta.id.parentflagsPhoto Object Attribute flags (3)meta.code.errorStatusHexadecimal status (4)meta.codeintzsp? Spectroscopic redshift (when SpObjID>0) (7)src.redshiftdoublenullablee_zsp? Mean error on zsp (7)stat.errorfloatnullableumag? Model magnitude in u filter, AB scale (u) (5)magphot.mag;em.opt.Ufloatnullableindexede_umag? Mean error on umag (err_u)magstat.error;phot.magfloatnullablegmag? Model magnitude in g filter, AB scale (g) (5)magphot.mag;em.opt.Bfloatnullableindexede_gmag? Mean error on gmag (err_g)magstat.error;phot.magfloatnullablermag? Model magnitude in r filter, AB scale (r) (5)magphot.mag;em.opt.Rfloatnullableindexede_rmag? Mean error on rmag (err_r)magstat.error;phot.magfloatnullableimag? Model magnitude in i filter, AB scale (i) (5)magphot.mag;em.opt.Ifloatnullableindexede_imag? Mean error on imag (err_i)magstat.error;phot.magfloatnullablezmag? Model magnitude in z filter, AB scale (z) (5)magphot.mag;em.opt.Ifloatnullableindexede_zmag? Mean error on zmag (err_z)magstat.error;phot.magfloatnullableQQuality of the observation (0=unknown): 1=bad 2=acceptable 3=good 4=missing 5=hole (6)meta.code.qual;obs.param;obsintuFlagsDetection flags, u band (flags_u)(3)meta.codeus[0,1] 0=notStar, 1=Star in u band (probPSF_u)src.class.starGalaxyintuc[0,9] Phototype in u band, 6=Star (type_u) (1)src.class.starGalaxyintuDateDate of observation in u band (6)yrtime.epochdoubleu'mag? Model magnitude in u filter (= umag) (5)magphot.mag;em.opt.Ufloatnullablee_u'mag? Mean error on u'mag (= e_umag)magstat.error;phot.magfloatnullableupmag? PSF magnitude in u band (psfMag_u)magphot.mag;em.opt.Ufloatnullablee_upmag? Mean error on upmag (psfMagErr_u)magstat.error;phot.magfloatnullableuPmag? Petrosian magnitude in u band (petroMag_u)magphot.mag;em.opt.Ufloatnullablee_uPmag? Mean error on uPmag (petroMagErr_u)magstat.error;phot.magfloatnullableuPrad? Petrosian radius in u band (petroRad_u)arcsecphys.angSize;srcfloatnullablee_uPrad? Mean error in uPrad (petroRadErr_u)arcsecstat.errorfloatnullableuoRA? Offset of u position along RA (offsetRa_u)arcsecpos.angDistancedoublenullableuoDE? Offset of u position along Dec (offsetDec_u)arcsecpos.angDistancefloatnullableudVrad? de Vaucouleurs fit radius, u band (deVRad_u)arcsecphys.angSize;srcfloatnullableudVell? de Vaucouleurs fit ellipt, u band (1-deVAB_u)arcsecsrc.ellipticityfloatnullableuPA? Position angle of dVrad in u band (deVPhi_u)degpos.posAngfloatnullablegFlagsDetection flags, g band (flags_g)(3)meta.codegs[0,1] 0=notStar, 1=Star in g band (probPSF_g)src.class.starGalaxyintgc[0,9] Phototype in g band, 6=Star (type_g) (1)src.class.starGalaxyintgDateDate of observation in g band (6)yrtime.epochdoubleg'mag? Model magnitude in g filter (= gmag) (5)magphot.mag;em.opt.Bfloatnullablee_g'mag? Mean error on g'mag (= e_gmag)magstat.error;phot.magfloatnullablegpmag? PSF magnitude in g band (psfMag_g)magphot.mag;em.opt.Bfloatnullablee_gpmag? Mean error on gpmag (psfMagErr_g)magstat.error;phot.magfloatnullablegPmag? Petrosian magnitude in g band (petroMag_g)magphot.mag;em.opt.Bfloatnullablee_gPmag? Mean error on gPmag (petroMagErr_g)magstat.error;phot.magfloatnullablegPrad? Petrosian radius in g band (petroMagErr_g)arcsecphys.angSize;srcfloatnullablee_gPrad? Mean error in gPrad (petroMagErr_g)arcsecstat.errorfloatnullablegoRA? Offset of g position along RA (offsetRa_g)arcsecpos.angDistancefloatnullablegoDE? Offset of g position along Dec (offsetDec_g)arcsecpos.angDistancefloatnullablegdVrad? de Vaucouleurs fit radius, g band (deVRad_g)arcsecphys.angSize;srcfloatnullablegdVell? de Vaucouleurs fit ellipt, g band (1-deVAB_g)arcsecsrc.ellipticityfloatnullablegPA? Position angle of dVrad in g band (deVPhi_g)degpos.posAngfloatnullablerFlagsDetection flags, r band (flags_r)(3)meta.coders[0,1] 0=notStar, 1=Star in r band (probPSF_r)src.class.starGalaxyintrc[0,9] Phototype in r band, 6=Star (type_r) (1)src.class.starGalaxyintrDateDate of observation in r band (6)yrtime.epochdoubler'mag? Model magnitude in r filter (= rmag) (5)magphot.mag;em.opt.Rfloatnullablee_r'mag? Mean error on r'mag (= e_rmag)magstat.error;phot.magfloatnullablerpmag? PSF magnitude in r band (psfMag_r)magphot.mag;em.opt.Rfloatnullablee_rpmag? Mean error on rpmag (psfMagErr_r)magstat.error;phot.magfloatnullablerPmag? Petrosian magnitude in r band (petroMag_r)magphot.mag;em.opt.Rfloatnullablee_rPmag? Mean error on rPmag (petroMagErr_r)magstat.error;phot.magfloatnullablerPrad? Petrosian radius in r band (petroMagErr_r)arcsecphys.angSize;srcfloatnullablee_rPrad? Mean error in rPrad (petroMagErr_r)arcsecstat.errorfloatnullableroRA? Offset of r position along RA (offsetRa_r)arcsecpos.angDistancefloatnullableroDE? Offset of r position along Dec (offsetDec_r)arcsecpos.angDistancefloatnullablerdVrad? de Vaucouleurs fit radius, r band (deVRad_r)arcsecphys.angSize;srcfloatnullablerdVell? de Vaucouleurs fit ellipt, r band (1-deVAB_r)arcsecsrc.ellipticityfloatnullablerPA? Position angle of dVrad in r band (deVPhi_r)degpos.posAngfloatnullableiFlagsDetection flags, i band (flags_i)(3)meta.codeis[0,1] 0=notStar, 1=Star in i band (probPSF_i)src.class.starGalaxyintic[0,9] Phototype in i band, 6=Star (type_i) (1)src.class.starGalaxyintiDateDate of observation in i band (6)yrtime.epochdoublei'mag? Model magnitude in i filter (= imag) (5)magphot.mag;em.opt.Ifloatnullablee_i'mag? Mean error on i'mag (= e_imag)magstat.error;phot.magfloatnullableipmag? PSF magnitude in i band (psfMag_i)magphot.mag;em.opt.Ifloatnullablee_ipmag? Mean error on ipmag (psfMagErr_i)magstat.error;phot.magfloatnullableiPmag? Petrosian magnitude in i band (petroMag_i)magphot.mag;em.opt.Ifloatnullablee_iPmag? Mean error on iPmag (petroMagErr_i)magstat.error;phot.magfloatnullableiPrad? Petrosian radius in i band (petroMagErr_i)arcsecphys.angSize;srcfloatnullablee_iPrad? Mean error in iPrad (petroMagErr_i)arcsecstat.errorfloatnullableioRA? Offset of i position along RA (offsetRa_i)arcsecpos.angDistancefloatnullableioDE? Offset of i position along Dec (offsetDec_i)arcsecpos.angDistancefloatnullableidVrad? de Vaucouleurs fit radius, i band (deVRad_i)arcsecphys.angSize;srcfloatnullableidVell? de Vaucouleurs fit ellipt, i band (1-deVAB_i)arcsecsrc.ellipticityfloatnullableiPA? Position angle of dVrad in i band (deVPhi_i)degpos.posAngfloatnullablezFlagsDetection flags, z band (flags_z)(3)meta.codezs[0,1] 0=notStar, 1=Star in z band (probPSF_z)src.class.starGalaxyintzc[0,9] Phototype in z band, 6=Star (type_z) (1)src.class.starGalaxyintzDateDate of observation in z band (6)yrtime.epochdoublez'mag? Model magnitude in z filter (= zmag) (5)magphot.mag;em.opt.Ifloatnullablee_z'mag? Mean error on z'mag (= e_zmag)magstat.error;phot.magfloatnullablezpmag? PSF magnitude in z band (psfMag_z)magphot.mag;em.opt.Ifloatnullablee_zpmag? Mean error on zpmag (psfMagErr_z)magstat.error;phot.magfloatnullablezPmag? Petrosian magnitude in z band (petroMag_z)magphot.mag;em.opt.Ifloatnullablee_zPmag? Mean error on zPmag (petroMagErr_z)magstat.error;phot.magfloatnullablezPrad? Petrosian radius in z band (petroMagErr_z)arcsecphys.angSize;srcfloatnullablee_zPrad? Mean error in zPrad (petroMagErr_z)arcsecstat.errorfloatnullablezoRA? Offset of z position along RA (offsetRa_z)arcsecpos.angDistancefloatnullablezoDE? Offset of z position along Dec (offsetDec_z)arcsecpos.angDistancefloatnullablezdVrad? de Vaucouleurs fit radius, z band (deVRad_z)arcsecphys.angSize;srcfloatnullablezdVell? de Vaucouleurs fit ellipt, z band (1-deVAB_z)arcsecsrc.ellipticityfloatnullablezPA? Position angle of dVrad in z band (deVPhi_z)degpos.posAngfloatnullablepmRA? Proper motion along RightAscension (pmRa) (8)mas/yrpos.pm;pos.eq.raintnullablee_pmRA? Mean error on pmRA (pmRaErr) (8)mas/yrstat.error;pos.pm;pos.eq.raintnullablepmDE? Proper motion along Declination (pmDec) (8)mas/yrpos.pm;pos.eq.decintnullablee_pmDE? Mean error on pmDE (pmDecErr) (8)mas/yrstat.error;pos.pm;pos.eq.decintnullablesigRA? RMS residual of proper motion fit in RA (8)arcsecstat.fit.residualfloatnullablesigDE? RMS residual of proper motion fit in Dec (8)arcsecstat.fit.residualfloatnullableMNumber of USNO-B objects matched within 1arcsec (match) (8)meta.numberintNNumber of detections used in the pm fit, including SDSS (nFit) (8)meta.numberintg(O)? Magnitude from O plate recalibrated to g (8)magphot.mag;em.opt.Bfloatnullabler(E)? Magnitude from E plate recalibrated to r (8)magphot.mag;em.opt.Rfloatnullableg(J)? Magnitude from J plate recalibrated to g (8)magphot.mag;em.opt.Bfloatnullabler(F)? Magnitude from F plate recalibrated to r (8)magphot.mag;em.opt.Rfloatnullablei(N)? Magnitude from N plate recalibrated to i (8)magphot.mag;em.opt.IfloatnullableObsDateMean Observation dateyrtime.epoch;obs;stat.meandoubleindexed