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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===J164802.82+261253.2
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Note: SDSS is also available from http://www.sdss.org/

ColumnValue  Explain   (UCD)
_RAJ200016 48 02.82000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+26 12 53.2692 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195016 46 00.34446 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+26 18 06.9265 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon046.32390276 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+37.64996441 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)
SDSSJ164802.82+261253.2  (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)
R3   [3457] Release inclusion (blank for new, 3,4,5 when already included in DR3/4/5) (meta.note)
SDSS-ID3918.2.378.0417   [ 0-9.] SDSS object identifier (Note 2)   (meta.id)
objID588018055128940961  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)
parentID588018055128940955  Pointer to parent (if object deblended) (meta.id.parent)
rerun 41   [40,651] Re-run number (Note 2)   (meta.code)
flags 4401010021010  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status00006673   [0-9A-F] Hexadecimal status (Note 4)   (meta.code)
e_RA_ICRS 0.371 arcsec Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
e_DE_ICRS 0.385 arcsec Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ccPos-0.56  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)
umag18.080 mag (i) Model magnitude in u filter (u) (Note 5)   (phot.mag;em.opt.U)
e_umag 0.048 mag Mean error on umag (err_u) (stat.error;phot.mag;em.opt.U)
gmag17.370 mag (i) Model magnitude in g filter (g) (Note 5)   (phot.mag;em.opt.B)
e_gmag 0.010 mag Mean error on gmag (err_g) (stat.error;phot.mag;em.opt.B)
rmag17.192 mag (i) Model magnitude in r filter (r) (Note 5)   (phot.mag;em.opt.R)
e_rmag 0.024 mag Mean error on rmag (err_r) (stat.error;phot.mag;em.opt.R)
imag16.799 mag (i) Model magnitude in i filter (i) (Note 5)   (phot.mag;em.opt.I)
e_imag 0.027 mag Mean error on imag (err_i) (stat.error;phot.mag;em.opt.I)
zmag16.624 mag (i) Model magnitude in z filter (z) (Note 5)   (phot.mag;em.opt.I)
e_zmag 0.086 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)
uDate2003.3245 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag18.080 mag Model magnitude in u filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.048 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
upmag21.040 mag PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
e_upmag 0.127 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
uPmag18.715 mag Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
e_uPmag 0.348 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
uPrad 11.87 arcsec Petrosian radius in u band (petroRad_u) (phys.angSize;src)
e_uPrad 11.71 arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
uoRA -0.78 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
uoDE 0.71 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
uisoA 26.91 arcsec Isophotal major diameter in u band (isoA_u) (phys.angSize;em.opt.U)
uisoB 11.24 arcsec Isophotal minor diameter in u band (isoB_u) (phys.angSize;em.opt.U)
uPA138.8 deg Position angle of uisoA in u band (isoPhi_u) (pos.posAng)
gFlags 4010029010  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)
gDate2003.3245 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag17.370 mag Model magnitude in g filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.010 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag;em.opt.B)
gpmag20.860 mag PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
e_gpmag 0.200 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
gPmag17.375 mag Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
e_gPmag 0.535 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
gPrad 16.29 arcsec Petrosian radius in g band (petroMagErr_g) (phys.angSize;src)
e_gPrad 2.26 arcsec Mean error in gPrad (petroMagErr_g) (stat.error)
goRA -0.48 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
goDE 0.54 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
gisoA 43.58 arcsec Isophotal major diameter in g band (isoA_g) (phys.angSize)
gisoB 12.57 arcsec Isophotal minor diameter in g band (isoB_g) (phys.angSize)
gPA127.5 deg Position angle of gisoA in g band (isoPhi_g) (pos.posAng)
rFlags 10004010008010  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)
rDate2003.3245 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag17.192 mag Model magnitude in r filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.024 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag;em.opt.R)
rpmag20.756 mag PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
e_rpmag 0.374 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
rPmag17.152 mag Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
e_rPmag 0.645 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
rPrad 16.24 arcsec Petrosian radius in r band (petroMagErr_r) (phys.angSize;src)
e_rPrad 16.10 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 45.59 arcsec Isophotal major diameter in r band (isoA_r) (phys.angSize)
risoB 14.27 arcsec Isophotal minor diameter in r band (isoB_r) (phys.angSize)
rPA127.8 deg Position angle of risoA in r band (isoPhi_r) (pos.posAng)
iFlags 4010008010  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)
iDate2003.3245 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag16.799 mag Model magnitude in i filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.027 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag;em.opt.I)
ipmag20.554 mag PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
e_ipmag 0.450 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
iPmag16.794 mag Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
e_iPmag 0.669 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
iPrad 15.62 arcsec Petrosian radius in i band (petroMagErr_i) (phys.angSize;src)
e_iPrad 8.78 arcsec Mean error in iPrad (petroMagErr_i) (stat.error)
ioRA 0.22 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
ioDE -0.17 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
iisoA 51.47 arcsec Isophotal major diameter in i band (isoA_i) (phys.angSize)
iisoB 15.21 arcsec Isophotal minor diameter in i band (isoB_i) (phys.angSize)
iPA124.6 deg Position angle of iisoA in i band (isoPhi_i) (pos.posAng)
zFlags 20404010028011  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)
zDate2003.3245 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag16.624 mag Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.086 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag;em.opt.I)
zpmag20.398 mag PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
e_zpmag 0.571 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
zPmag16.576 mag Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
e_zPmag 0.575 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
zPrad 15.22 arcsec Petrosian radius in z band (petroMagErr_z) (phys.angSize;src)
e_zPrad 8.23 arcsec Mean error in zPrad (petroMagErr_z) (stat.error)
zoRA -0.21 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
zoDE 0.09 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
zisoA 79.16 arcsec Isophotal major diameter in z band (isoA_z) (phys.angSize)
zisoB 16.77 arcsec Isophotal minor diameter in z band (isoB_z) (phys.angSize)
zPA123.5 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_ICRS252.011750 deg (i) Right Ascension of the object (ICRS) (ra) (pos.eq.ra;meta.main)
DE_ICRS+26.214797 deg (i) Declination of the object (ICRS) (dec) (pos.eq.dec;meta.main)
ObsDate2003.3245 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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