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VizieR

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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===J210527.71+155049.3
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Note: SDSS is also available from http://www.sdss.org/

ColumnValue  Explain   (UCD)
_RAJ200021 05 27.71400 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+15 50 49.3728 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195021 03 07.00571 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+15 38 47.5563 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon064.09976244 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-20.37158913 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)
cl3  Type (class) of the object (type) (Note 1)   (src.class)
SDSSJ210527.71+155049.3  (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-ID4836.1.087.0413   [ 0-9.] SDSS object identifier (Note 2)   (meta.id)
objID758877308216344989  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)
parentID758877308216344987  Pointer to parent (if object deblended) (meta.id.parent)
rerun648   [40,651] Re-run number (Note 2)   (meta.code)
flags 1401012020110  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00002673   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
e_RA_ICRS 0.133 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
e_DE_ICRS 0.104 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ccPos 0.19  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)
umag25.241 mag (i) Model magnitude in u filter (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.961 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag23.975 mag (i) Model magnitude in g filter (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.522 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag23.614 mag (i) Model magnitude in r filter (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.408 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag21.702 mag (i) Model magnitude in i filter (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.121 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag21.405 mag (i) Model magnitude in z filter (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.313 mag Mean error on zmag (err_z) (stat.error;phot.mag;em.opt.I)
uFlags 20000008800111  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)
uDate2004.7122 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag25.241 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.961 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag24.974 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.954 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag25.072 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 1.620 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 2.97 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA 0.01 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE -0.01 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 2801000A820111  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)
gDate2004.7122 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag23.975 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.522 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag24.087 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.801 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag23.677 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.747 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 0.01 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.03 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gisoA  arcsec Isophotal major diameter in g band (isoA_g) (phys.angSize)
gisoB  arcsec Isophotal minor diameter in g band (isoB_g) (phys.angSize)
gPA  deg Position angle of gisoA in g band (isoPhi_g) (pos.posAng)
rFlags 28000002802111  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)
rDate2004.7122 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag23.614 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.408 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag23.638 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.357 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag23.454 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.792 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 3.98 arcsec Isophotal major diameter in r band (isoA_r) (phys.angSize)
risoB 1.12 arcsec Isophotal minor diameter in r band (isoB_r) (phys.angSize)
rPA120.5 deg Position angle of risoA in r band (isoPhi_r) (pos.posAng)
iFlags 18004012000010  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)
iDate2004.7122 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag21.702 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.121 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag21.853 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.117 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag21.776 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.264 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 1.33 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 0.33 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.02 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.05 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
iisoA 4.86 arcsec Isophotal major diameter in i band (isoA_i) (phys.angSize)
iisoB 2.15 arcsec Isophotal minor diameter in i band (isoB_i) (phys.angSize)
iPA 21.0 deg Position angle of iisoA in i band (isoPhi_i) (pos.posAng)
zFlags A040401A000011  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)
zDate2004.7122 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag21.405 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.313 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag21.463 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.278 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag21.444 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.583 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 2.04 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 1.91 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.28 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.26 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zisoA  arcsec Isophotal major diameter in z band (isoA_z) (phys.angSize)
zisoB  arcsec Isophotal minor diameter in z band (isoB_z) (phys.angSize)
zPA  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_ICRS316.365475 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
DE_ICRS+15.847048 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
ObsDate2004.7122 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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