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VII/260/dr7qso The SDSS-DR7 quasar catalog (Schneider+, 2010)
The SDSS quasar catalog V, DR7 (table2 of the paper) (105783 rows)
  recno=83900
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ColumnValue  Explain   (UCD)
_RAJ200015 05 45.4557 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (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.eq.ra)
_DEJ2000+14 23 25.472 "d:m:s" Declination (FK5, Equinox=J2000.0) (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.eq.dec)
_RAB195015 03 24.1212 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (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.eq.ra)
_DEB1950+14 34 59.622 "d:m:s" Declination (FK4, Equinox=B1950.0) (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.eq.dec)
_Glon017.6102563 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+56.2555708 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)
83900recno 83900  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SDSS150545.45+142325.4  SDSS DR7 object designation (1) (linked to details from SDSS site) (Note)   (meta.id;meta.main)
z 0.4262  SDSS redshift (src.redshift)
umag 18.816 mag BEST SDSS u band PSF magnitude (Note 2)   (phot.mag;em.opt.U)
e_umag 0.021 mag Error in umag (stat.error;phot.mag;em.opt.U)
gmag 18.640 mag BEST SDSS g band PSF magnitude (Note 2)   (phot.mag;em.opt.B)
e_gmag 0.026 mag Error in gmag (stat.error;phot.mag;em.opt.B)
rmag 18.851 mag BEST SDSS r band PSF magnitude (Note 2)   (phot.mag;em.opt.R)
e_rmag 0.016 mag Error in rmag (stat.error;phot.mag;em.opt.R)
imag 18.715 mag BEST SDSS i band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_imag 0.017 mag Error in imag (stat.error;phot.mag;em.opt.I)
zmag 18.451 mag BEST SDSS z band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_zmag 0.032 mag Error in zmag (stat.error;phot.mag;em.opt.I)
Au 0.168 mag Galactic extinction in u filter (Note 3)   (phys.absorption)
logHI 20.332 [cm-2] Log of Galactic HI column density (phys.columnDensity;pos.galactic)
F20cm  mag FIRST 20cm peak flux density (Note 4)   (phot.flux.density;em.radio.750-1500MHz)
w_F20cm 0.000  Signal-to-Noise ratio for F20cm (stat.weight)
sepR 0.000 arcsec SDSS/FIRST separation (pos;arith.diff)
logX  [ct/s] RASS BSC/FSC full band count rate (Note 5)   (phot.count;em.X-ray)
w_logX 0.000  Signal-to-Noise ratio for logX (stat.weight)
sepX 0.000 arcsec SDSS/RASS separation (pos;arith.diff)
Jmag 16.945 mag 2MASS J band magnitude (Note 6)   (phot.mag;em.IR.J)
e_Jmag 0.180 mag Error in Jmag (stat.error;phot.mag;em.IR.J)
Hmag 16.292 mag 2MASS H band magnitude (Note 6)   (phot.mag;em.IR.H)
e_Hmag 0.231 mag Error in Hmag (stat.error;phot.mag;em.IR.H)
Kmag 15.607 mag 2MASS KS band magnitude (Note 6)   (phot.mag;em.IR.K)
e_Kmag 0.213 mag Error in Kmag (stat.error;phot.mag;em.IR.K)
sepIR 0.189 arcsec SDSS/2MASS separation (pos;arith.diff)
f2M 13   [0/26] 2MASS flags (Note 7)   (meta.code.error)
iMAG -23.008 mag Absolute SDSS i band magnitude (Note 8)   (phys.magAbs;em.opt.I)
D(g-i) -0.279 mag Offset of quasar (g-i) from distribution (g-i) mode (Note 9)   (stat.fit.residual)
Mph 1   [0/1] Morphology flag (1=extended source) (src.class.starGalaxy)
S1 1   [0/1] SCIENCEPRIMARY flag (1=SCIENCEPRIMARY) (meta.code)
mode 1   [0/3] SDSS MODE flag for blends, overlapping scans (Note 10)   (meta.code.class)
utf 1   [0/1] Uniform target selection flag (Note 11)   (meta.code)
TflagB00000002  BEST target selection flag (hexadecimal) (meta.code)
Lz 1   [0/1] Low-z Quasar, color selection only, target flag (1=targeted as Low-z Quasar) (meta.code)
Hz 0   [0/1] High-z Quasar, color selection only, target flag (1=targeted as High-z Quasar) (meta.code)
fR 0   [0/1] FIRST target flag (1=targeted) (meta.code)
fX 0   [0/1] ROSAT target flag (1=targeted) (meta.code)
fS 0   [0/1] Serendipity target flag (1=targeted) (meta.code)
f* 0   [0/1] Star target flag (1=targeted) (meta.code)
fG 0   [0/1] Galaxy target flag (1=targeted) (meta.code)
run 5308  SDSS imaging run number for photometric measurements (meta.id)
MJD-im 53499 d Modified Julian Date of imaging observation (time.epoch)
MJD-sp 54243 d Modified Julian Date of spectroscopic observation (time.epoch)
Plate 2751  Spectroscopic Plate number (meta.id;instr.plate)
Fiber 607  Spectroscopic Fiber number (meta.id)
rerun 40  SDSS Photometric Processing Rerun number (meta.id)
Cam 1   [1/6] SDSS Camera Column number (meta.id;instr)
Frame 228  SDSS Frame number (obs.field)
obj 83  SDSS Object number (meta.id)
Tflag00000002  TARGET target selection flag (hexadecimal) (meta.code)
LzT 1   [0/1] Low-z Quasar, color selection only, target flag (1=targeted as Low-z Quasar) (meta.code)
HzT 0   [0/1] High-z Quasar, color selection only, target flag (1=targeted as High-z Quasar) (meta.code)
fRT 0   [0/1] FIRST target flag (1=targeted) (meta.code)
fXT 0   [0/1] ROSAT target flag (1=targeted) (meta.code)
fST 0   [0/1] Serendipity target flag (1=targeted) (meta.code)
f*T 0   [0/1] Star target flag (1=targeted) (meta.code)
fGT 0   [0/1] Galaxy target flag (1=targeted) (meta.code)
uTmag 18.837 mag TARGET SDSS u band PSF magnitude (Note 2)   (phot.mag;em.opt.U)
e_uTmag 0.021 mag Error in uTmag (stat.error;phot.mag)
gTmag 18.647 mag TARGET SDSS g band PSF magnitude (Note 2)   (phot.mag;em.opt.B)
e_gTmag 0.026 mag Error in gTmag (stat.error;phot.mag)
rTmag 18.856 mag TARGET SDSS r band PSF magnitude (Note 2)   (phot.mag;em.opt.R)
e_rTmag 0.016 mag Error in rTmag (stat.error;phot.mag)
iTmag 18.722 mag TARGET SDSS i band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_iTmag 0.017 mag Error in iTmag (stat.error;phot.mag)
zTmag 18.452 mag TARGET SDSS z band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_zTmag 0.032 mag Error in zTmag (stat.error;phot.mag)
prevID   Previously published name (Note 12)   (meta.id)

BHBH  Display the black hole mass estimates from Shen et al. 2008, Cat. J/ApJ/680/169 (meta.ref.url)
DR7DR7  Display the detailed photometry from SDSS-DR7 (Cat. II/294) (meta.ref.url)
2MASS2MASS  Display the 2MASS data (meta.ref.url)
XX  Display the X-ray sources closer than 1' (meta.ref.url)
RadioRadio  Display the radio sources closer than 1' (meta.ref.url)

RAJ2000226.43940 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000+14.39041 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  
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