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II/294/sdss7 The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
Data Release 7 (357,175,411 primary sources, plus 65,714,108 secondary sources) (65714108 rows)
  -c=215.22618 +03.24075, rs=1
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Note: SDSS is also available from http://www.sdss.org/

ColumnValue  Explain   (UCD)
_r0.005 arcsec Distance from center (215.226180+03.240750)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200014 20 54.28296 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+03 14 26.7036 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195014 18 22.75624 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+03 28 08.5496 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon348.63659707 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+57.94005912 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)

mode2   [1,2] 1: primary (357,175,411 sources), 2: secondary (65,058,969 sources). (meta.code.class)
q_mode    [+] '+' indicates clean photometry (105,969,748 sources with mode 1+) (meta.code.qual;instr.setup)
cl3  Type (class) of the object (type) (Note 1)   (src.class)
SDSSJ142054.28+031426.7  (i) Recommended SDSS name, based on J2000 position (meta.id)
m_SDSS    [*] The asterisk indicates that 2 different SDSS objects share the same SDSS name (meta.code.multip)
R7   [3457] Release inclusion (blank for new, 3,4,5 when already included in DR3/4/5) (meta.note)
SDSS-ID1478.1.048.0088   [ 0-9.] SDSS object identifier (Note 2)   (meta.id)
objID587726099873529944  SDSS unique object identifier (2) (links to SDSS details) (Note)   (meta.id;meta.main)
SpObjID150530964508901376  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID587726099873529939  Pointer to parent (if object deblended) (meta.id.parent)
rerun 40   [40,651] Re-run number (Note 2)   (meta.code)
flags 10020110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00001273   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
e_RA_ICRS 0.062 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
e_DE_ICRS 0.073 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ccPos 0.01  Correlation between eRAdeg/eDEdeg (raDecCorr) (stat.correlation)
zsp 0.15858   Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp0.00008   Mean error on zsp (Note 7)   (stat.error)
umag20.160 mag (i) Model magnitude in u filter (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.167 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag19.786 mag (i) Model magnitude in g filter (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.060 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag19.061 mag (i) Model magnitude in r filter (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.041 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag18.857 mag (i) Model magnitude in i filter (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.056 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag18.079 mag (i) Model magnitude in z filter (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.102 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
uFlags 4010008010  Detection flags, u band (flags_u) (Note 3)   (meta.code)
us0   [0,2] 0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
uc3   [0,9] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2000.3569 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag20.160 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.167 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag21.701 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.165 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag21.101 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.370 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 3.54 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 0.82 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.09 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE -0.38 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
uisoA 6.32 arcsec Isophotal major diameter in u band (isoA_u) (phys.angSize;em.opt.U)
uisoB 3.68 arcsec Isophotal minor diameter in u band (isoB_u) (phys.angSize;em.opt.U)
uPA 0.2 deg Position angle of uisoA in u band (isoPhi_u) (pos.posAng)
gFlags 4010808110  Detection flags, g band (flags_g) (Note 3)   (meta.code)
gs0   [0,2] 0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
gc3   [0,9] Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2000.3569 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag19.786 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.060 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag21.532 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.121 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag20.257 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.151 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 2.97 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad  arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.03 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE -0.02 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gisoA 6.07 arcsec Isophotal major diameter in g band (isoA_g) (phys.angSize)
gisoB 4.23 arcsec Isophotal minor diameter in g band (isoB_g) (phys.angSize)
gPA 35.3 deg Position angle of gisoA in g band (isoPhi_g) (pos.posAng)
rFlags 10004010808110  Detection flags, r band (flags_r) (Note 3)   (meta.code)
rs0   [0,2] 0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
rc3   [0,9] Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2000.3569 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag19.061 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.041 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag21.053 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.094 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag19.611 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.131 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 2.97 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad  arcsec Mean error in rPrad (petroMagErr_r) (stat.error)
roRA 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
roDE 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
risoA 9.87 arcsec Isophotal major diameter in r band (isoA_r) (phys.angSize)
risoB 5.64 arcsec Isophotal minor diameter in r band (isoB_r) (phys.angSize)
rPA 10.1 deg Position angle of risoA in r band (isoPhi_r) (pos.posAng)
iFlags 4010028010  Detection flags, i band (flags_i) (Note 3)   (meta.code)
is0   [0,2] 0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
ic3   [0,9] Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2000.3569 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag18.857 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.056 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag20.856 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.139 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag19.232 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.143 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 12.23 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.75 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA -0.13 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE 0.24 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
iisoA 22.26 arcsec Isophotal major diameter in i band (isoA_i) (phys.angSize)
iisoB 15.99 arcsec Isophotal minor diameter in i band (isoB_i) (phys.angSize)
iPA 29.8 deg Position angle of iisoA in i band (isoPhi_i) (pos.posAng)
zFlags 4010008010  Detection flags, z band (flags_z) (Note 3)   (meta.code)
zs0   [0,2] 0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
zc3   [0,9] Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2000.3569 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag18.079 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.102 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag19.957 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.127 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag18.764 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.198 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 3.02 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.11 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.12 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE -0.16 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zisoA 13.83 arcsec Isophotal major diameter in z band (isoA_z) (phys.angSize)
zisoB 6.88 arcsec Isophotal minor diameter in z band (isoB_z) (phys.angSize)
zPA 95.0 deg Position angle of zisoA in z band (isoPhi_z) (pos.posAng)
pmRA  mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA  mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE  mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE  mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA  arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE  arcsec RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
M0  Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
N0  Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)  mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)  mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)  mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)  mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)  mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
RA_ICRS215.226179 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
DE_ICRS+03.240751 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
ObsDate2000.3569 yr Mean Observation date (time.epoch;obs;stat.mean)
Q3  Quality of the observation: 1=bad 2=acceptable 3=good 4=missing 5=hole (Note 6)   (meta.code.qual;obs.param;obs)
  
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