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Simple Target
List Of Targets
Fast Xmatch with large catalogs or Simbad
Target
Name (resolved by
Sesame
) or
Position
:
J2000
B1975
B1950
B1900
B1875
B1855
Galactic
Supergal.
Ecl.J2000
Target dimension:
deg
arcmin
arcsec
NB: The epoch used for the query is the original epoch of the table(s)
Radius
Box size
J/ApJS/155/257
7616
NBC Quasar Candidate Catalog (Richards+, 2004)
ReadMe+ftp
2004ApJS..155..257R
Similar Catalogs
Post annotation
1.
J/ApJS/155/257/table1
NBC Quasar Candidate Catalog
(100563 rows)
meta
J/ApJS/155/257/table1
Simple Constraint
List Of Constraints
Query by
Constraints
applied on Columns
(
Output Order:
+
-
)
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Column
Constraint
Explain
(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
[RNG2004]
Unique catalog number
(
meta.id;meta.main
)
(
ID_MAIN
)
Name
(char)
The SDSS name
(Note 1)
(
meta.id
)
(
ID_ALTERNATIVE
)
RAJ2000
deg
(i)
Right ascension in decimal degrees (J2000.0)
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
DEJ2000
deg
(i)
Declination in decimal degrees (J2000.0)
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
ID
(char)
SDSS Object ID string
(Note 2)
(
meta.id
)
(
ID_NUMBER
)
RPix
pix
Row position of object in field
(
pos.cartesian;instr.det
)
(
POS_DETECTOR_DIST
)
CPix
pix
Column position of object in field
(
pos.cartesian;instr.det
)
(
POS_DETECTOR_DIST
)
umag
mag
PSF SDSS u asinh magnitude
(Note 3)
(
phot.mag;em.opt.U
)
(
PHOT_SDSS_U
)
e_umag
mag
Error in umag
(
stat.error;phot.mag;em.opt.U
)
(
ERROR
)
gmag
mag
PSF SDSS g asinh magnitude
(Note 3)
(
phot.mag;em.opt.B
)
(
PHOT_SDSS_G
)
ALL
cols
(i)
indexed column
e_gmag
mag
Error in gmag
(
stat.error;phot.mag;em.opt.B
)
(
ERROR
)
rmag
mag
PSF SDSS r asinh magnitude
(Note 3)
(
phot.mag;em.opt.R
)
(
PHOT_SDSS_R
)
e_rmag
mag
Error in rmag
(
stat.error;phot.mag;em.opt.R
)
(
ERROR
)
imag
mag
PSF SDSS i asinh magnitude
(Note 3)
(
phot.mag;em.opt.I
)
(
PHOT_SDSS_I
)
e_imag
mag
Error in imag
(
stat.error;phot.mag;em.opt.I
)
(
ERROR
)
zmag
mag
PSF SDSS z asinh magnitude
(Note 3)
(
phot.mag;em.opt.I
)
(
PHOT_SDSS_Z
)
e_zmag
mag
Error in zmag
(
stat.error;phot.mag;em.opt.I
)
(
ERROR
)
Au
mag
Galactic extinction in the u band
(
phys.absorption
)
(
PHOT_EXTINCTION_TOTAL
)
Ag
mag
Galactic extinction in the g band
(
phys.absorption
)
(
PHOT_EXTINCTION_TOTAL
)
Ar
mag
Galactic extinction in the r band
(
phys.absorption
)
(
PHOT_EXTINCTION_TOTAL
)
Ai
mag
Galactic extinction in the i band
(
phys.absorption
)
(
PHOT_EXTINCTION_TOTAL
)
Az
mag
Galactic extinction in the z band
(
phys.absorption
)
(
PHOT_EXTINCTION_TOTAL
)
QDen
KDE (Kernel Density Estimator) quasar density
(
stat.fit.param
)
(
FIT_PARAM_VALUE
)
ALL
cols
(i)
indexed column
SDen
KDE (Kernel Density Estimator) star density
(
stat.fit.param
)
(
FIT_PARAM_VALUE
)
z
Photometric redshift
(
src.redshift.phot
)
(
REDSHIFT_PHOT
)
e_z
Lower limit in z
(
stat.error;src.redshift
)
(
ERROR
)
E_z
Upper limit in z
(
stat.error;stat.max
)
(
ERROR
)
zProb
Photometric redshift range probability
(
stat.fit.goodness
)
(
STAT_PROBABILITY
)
r_class
(char)
Origin of class: 2QZ or release number
(Note 4)
(
meta.ref;pos.frame
)
(
REFER_CODE
)
class
(char)
Previous catalog object classification
(Note 4)
(
meta.code.class;src.class;meta.table
)
(
CLASS_OBJECT
)
zPrev
(n)
Previous catalog object redshift
(Note 5)
(
src.redshift.phot
)
(
REDSHIFT_PHOT
)
S20cm
mJy
(n)
20cm flux density
(Note 5)
(
phot.flux.density;em.radio.750-1500MHz
)
(
PHOT_FLUX_RADIO_1.4G
)
logX
[ct/s]
(n)
Log RASS full-band count rate
(Note 6)
(
phot.count;em.X-ray
)
(
PHOT_COUNT-RATE_X
)
pm
mas/yr
(n)
Proper motion
(Note 7)
(
pos.pm
)
(
POS_EQ_PM
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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https://cdsannotations.cds.unistra.fr/annotations/vizierTable//
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