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J/A+A/614/A140/lqac4 Large Quasar Astrometric Catalogue 4, LQAC-4 (Gattano+, 2018)
4th release of the Large Quasar Astrometric Catalogue (443725 rows)
  recno=136814
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200009 45 11.097706752 "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+46 29 33.31066236 "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)
_RAB195009 41 57.732026964 "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+46 43 22.79732392 "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)
_Glon172.253605280651 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+48.763042184084 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)
136814recno 136814  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

LQAC LQAC_146+046_048  (i) LQAC name given for each object based on equatorial coordinates (meta.id;meta.main)
Flag4   [3/4] Flag to recognize already recorded or new sources (Note 1)   (meta.code.error)
OName SDSS 1237657630591811840  Name of the quasar in the original catalog (Note 2)   (meta.id)
NatureQUASAR  Nature of the object (Note 3)   (meta.code.class)
RAOdeg146.2962404448 deg Right ascension (J2000) in original catalog (Note 4)   (pos.eq.ra)
DEOdeg 46.4925862951 deg Declination (J2000) in original catalog (Note 4)   (pos.eq.dec)
SourceORIG  Source of the following optimized equatorial coordinates (Note 5)   (meta.code)
RAJ2000146.2962404448 deg (i) Optimized Right ascension (J2000) (Note 6)   (pos.eq.ra;meta.main)
DEJ2000+46.4925862951 deg (i) Optimized Declination (J2000) (Note 6)   (pos.eq.dec;meta.main)
e_RAJ2000  mas Uncertainity in d(alpha)xcos(delta) in Gaia DR1 (Note 7)   (stat.error;pos.eq.ra)
e_DEJ2000  mas Uncertainty in d(delta) in Gaia DR1 (Note 7)   (stat.error;pos.eq.dec)
Ref----E--------  Flags indicating the presence of the quasar in the 13 catalogs belonging to the compilation (Note 8)   (meta.code)
GAIA   Flag to recognize recorded sources in GAIA-DR1 (Note 9)   (meta.code)
z 1.08240  (i) Redshift (src.redshift)
umag21.112 mag Photometric magnitude in Optical u band between 300 and 400 nm (Note 10)   (phot.mag;em.opt.U)
Bmag  mag Photometric magnitude in Optical B band between 400 and 500 nm (Note 10)   (phot.mag;em.opt.B)
Gmag  mag Photometric magnitude in Optical G Gaia band (phot.mag;em.opt.R)
Vmag  mag Photometric magnitude in Optical V band between 500 and 600 nm (Note 10)   (phot.mag;em.opt.V)
gmag21.281 mag Photometric magnitude in Optical g band between 400 and 500 nm (Note 10)   (phot.mag;em.opt.R)
rmag21.065 mag Photometric magnitude in Optical r band between 600 and 750 nm (Note 10)   (phot.mag;em.opt.R)
imag20.918 mag Photometric magnitude in Optical i band between 750 and 1000 nm (Note 10)   (phot.mag;em.opt.I)
zmag20.624 mag Photometric magnitude in Optical z band (Note 10)   (phot.mag;em.opt.I)
Jmag  mag Photometric magnitude in Infrared J band between 1000 and 1500 nm (Note 11)   (phot.mag;em.IR.J)
Kmag  mag Photometric magnitude in Infrared K band between 2000 and 3000 nm (Note 11)   (phot.mag;em.IR.K)
S1.4  Jy Radio flux between 750 and 1500 MHz (20cm) (phot.flux.density;em.radio.1500-3000MHz)
S2.3  Jy Radio flux between 1500 and 3000 MHz (13cm) (phot.flux.density;em.radio.1500-3000MHz)
S5.0  Jy Radio flux between 3 and 6 GHz (6cm) (phot.flux.density;em.radio.3-6GHz)
S8.4  Jy Radio flux between 6 and 12 GHz (3.6cm) (phot.flux.density;em.radio.6-12GHz)
S23  Jy Radio flux between 12 and 30 GHz (1.2cm) (phot.flux.density;em.mm.30-50GHz)
I1B    Sharp morphology index in band B (src.morph.param)
I2B    Sround morphology index in band B (src.morph.param)
I3B    Ground morphology index in band B (src.morph.param)
I1R    Sharp morphology index in band R (src.morph.param)
I2R    Sround morphology index in band R (src.morph.param)
I3R    Ground morphology index in band R (src.morph.param)
I1I    Sharp morphology index in band I (src.morph.param)
I2I    Sround morphology index in band I (src.morph.param)
I3I    Ground morphology index in band I (src.morph.param)
BMAG  mag Absolute magnitude in band B (phys.magAbs;em.opt.B)
IMAG  mag Absolute magnitude in band I (phys.magAbs;em.opt.I)
uMAG-23.446 mag Absolute magnitude in band u (phys.magAbs)
gMAG-23.955 mag Absolute magnitude in band g (phys.magAbs)
rMAG-24.800 mag Absolute magnitude in band r (phys.magAbs)
iMAG-24.317 mag Absolute magnitude in band i (phys.magAbs)
zMAG-24.668 mag Absolute magnitude in band z (phys.magAbs)
  
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