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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)
  SDSS===J220831.05+204052.5
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Note: SDSS is also available from http://www.sdss.org/

ColumnValue  Explain   (UCD)
_RAJ200022 08 31.05686 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+20 40 52.5230 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195022 06 09.12526 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+20 26 08.9189 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon079.17772054 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-28.02950458 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)

mode1   [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)
cl6  Type (class) of the object (type) (Note 1)   (src.class)
SDSSJ220831.05+204052.5  (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-ID4836.2.192.0118   [ 0-9.] SDSS object identifier (Note 2)   (meta.id)
objID758877308760096886  SDSS unique object identifier (2) (links to SDSS details) (Note)   (meta.id;meta.main)
SpObjID 0  Pointer to the spectrum of object, or 0 (7) (Note)   (meta.id)
parentID758877308760096882  Pointer to parent (if object deblended) (meta.id.parent)
rerun648   [40,651] Re-run number (Note 2)   (meta.code)
flags 1010000010  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00002673   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
e_RA_ICRS 0.145 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
e_DE_ICRS 0.069 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ccPos 0.41  Correlation between eRAdeg/eDEdeg (raDecCorr) (stat.correlation)
zsp    Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (Note 7)   (stat.error)
umag22.562 mag (i) Model magnitude in u filter (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 2.268 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag20.141 mag (i) Model magnitude in g filter (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.023 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag19.411 mag (i) Model magnitude in r filter (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.017 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag19.131 mag (i) Model magnitude in i filter (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.019 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag18.943 mag (i) Model magnitude in z filter (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.044 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
uFlags 20000008808011  Detection flags, u band (flags_u) (Note 3)   (meta.code)
us1   [0,2] 0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
uc6   [0,9] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2004.7123 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag22.562 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 2.268 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag22.042 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.348 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag22.068 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.696 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 1.47 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 1.37 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.05 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.05 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
uisoA  arcsec Isophotal major diameter in u band (isoA_u) (phys.angSize;em.opt.U)
uisoB  arcsec Isophotal minor diameter in u band (isoB_u) (phys.angSize;em.opt.U)
uPA  deg Position angle of uisoA in u band (isoPhi_u) (pos.posAng)
gFlags 10008010  Detection flags, g band (flags_g) (Note 3)   (meta.code)
gs1   [0,2] 0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
gc6   [0,9] Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2004.7123 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag20.141 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.023 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag20.167 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.026 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag20.140 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.043 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 2.37 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 0.16 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA 0.00 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 7.52 arcsec Isophotal major diameter in g band (isoA_g) (phys.angSize)
gisoB 5.40 arcsec Isophotal minor diameter in g band (isoB_g) (phys.angSize)
gPA 0.6 deg Position angle of gisoA in g band (isoPhi_g) (pos.posAng)
rFlags 10000010008010  Detection flags, r band (flags_r) (Note 3)   (meta.code)
rs1   [0,2] 0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
rc6   [0,9] Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2004.7123 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag19.411 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.017 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag19.444 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.020 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag19.409 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.032 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 2.21 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 0.09 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 7.42 arcsec Isophotal major diameter in r band (isoA_r) (phys.angSize)
risoB 6.77 arcsec Isophotal minor diameter in r band (isoB_r) (phys.angSize)
rPA 42.1 deg Position angle of risoA in r band (isoPhi_r) (pos.posAng)
iFlags 10008010  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)
iDate2004.7123 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag19.131 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.019 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag19.183 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.044 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag18.990 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.035 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 2.78 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.23 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.01 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.01 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
iisoA 10.55 arcsec Isophotal major diameter in i band (isoA_i) (phys.angSize)
iisoB 7.55 arcsec Isophotal minor diameter in i band (isoB_i) (phys.angSize)
iPA 67.4 deg Position angle of iisoA in i band (isoPhi_i) (pos.posAng)
zFlags 4010008010  Detection flags, z band (flags_z) (Note 3)   (meta.code)
zs1   [0,2] 0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
zc6   [0,9] Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2004.7123 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag18.943 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.044 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag18.981 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.044 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag18.901 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.101 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 2.11 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 0.37 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA 0.01 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE -0.03 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zisoA 8.65 arcsec Isophotal major diameter in z band (isoA_z) (phys.angSize)
zisoB 5.96 arcsec Isophotal minor diameter in z band (isoB_z) (phys.angSize)
zPA130.0 deg Position angle of zisoA in z band (isoPhi_z) (pos.posAng)
pmRA -4 mas/yr Proper motion along RightAscension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
e_pmRA 3 mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDE 2 mas/yr Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
e_pmDE 3 mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA 0.165 arcsec RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE 0.107 arcsec RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
M1  Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
N6  Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)19.8 mag Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)19.4 mag Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)19.8 mag Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)19.2 mag Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)19.5 mag Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
RA_ICRS332.129398 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
DE_ICRS+20.681259 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
ObsDate2004.7123 yr Mean Observation date (time.epoch;obs;stat.mean)
Q2  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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