VizieR

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Simple Target List Of Targets Fast Xmatch with large catalogs or Simbad

Target Name (resolved by Sesame) or Position:	Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)	Radius Box size

	J/ApJS/264/9	-1		Southern phot. quasars from DES DR2 & NIR surveys (Yang+, 2023) ReadMe+ftp 2023ApJS..264....9Y Similar Catalogs Post annotation
1.	J/ApJS/264/9/skewt		The DES DR2 skewt-QSO catalog (original column names in green) (1352947 rows) metaJ/ApJS/264/9/skewt

Simple Constraint List Of Constraints

Query by Constraints constraints help

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. ((unassigned);instr.calib;stat.min;phys.veloc)

CoadID

[870246065/1700559127] Unique identifier for the coadded objects (COADD_OBJECT_ID) (pos.galactic.lon;phys.atmol;arith.diff;spect.line.veloc;arith)

RAJ2000

deg

⁽ⁱ⁾ DES right ascension (J2000) (ALPHAWIN_J2000) ((unassigned);(unassigned);(unassigned);(unassigned);arith)

DEJ2000

deg

⁽ⁱ⁾ [-67.5/5.4] DES declination (J2000) (DELTAWIN_J2000) ((unassigned);(unassigned);(unassigned);(unassigned);arith)

ClCoad

⁽ⁿ⁾ [0/3] DES morphological object classification variable (EXTENDED_COADD) (Note 1) ((unassigned);(unassigned);(unassigned);pos.galactic)

SNmax

[5/9989] Max. S/N of the PSF mag in DES (SN_MAX_PSF) ((unassigned);phys.veloc.orbital;arith.diff;meta.abstract;meta.main)

SN3

[3/11] Number of bands in DES with S/N>3 ((unassigned);phys.veloc.orbital;arith.diff;src.var)

Phot

(char)

DES photometry fitting to quasar and star models; "PSF" or "AUTO" (PHOTOMETRY) ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc.orbital)

Band

(char)

[grizy] DES bands (BAND_DES) ((unassigned);phys.veloc.orbital;arith.diff;pos.eq.dec;phys.SFR)

gmagPSF

mag

⁽ⁿ⁾ [-18.3/25.5] g-band DES PSF magnitude (MAG_PSF_G) ((unassigned);em.line;arith.grad;stat.filling;(unassigned);(unassigned))

e_gmagPSF

mag

⁽ⁿ⁾ [0.0002/1.3] gmagPSF uncertainty (MAGERR_PSF_G) ((unassigned);phys.veloc.orbital;arith.diff;time.age;meta.main)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

rmagPSF

mag

⁽ⁿ⁾ [14.3/25] r-band DES PSF magnitude (MAG_PSF_R) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_rmagPSF

mag

⁽ⁿ⁾ [0.0001/1.1] rmagPSF uncertainty (MAGERR_PSF_R) ((unassigned);(unassigned);(unassigned);time.age;meta.main)

imagPSF

mag

⁽ⁿ⁾ [14.7/24.8] i-band DES PSF magnitude (MAG_PSF_I) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_imagPSF

mag

⁽ⁿ⁾ [0.0002/2.2] imagPSF uncertainty (MAGERR_PSF_I) ((unassigned);(unassigned);(unassigned);time.age;meta.main)

zmagPSF

mag

⁽ⁿ⁾ [14.5/24] z-band DES PSF magnitude (MAG_PSF_Z) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_zmagPSF

mag

⁽ⁿ⁾ [0.0003/2.1] zmagPSF uncertainty (MAGERR_PSF_Z) ((unassigned);phys.veloc.orbital;arith.diff;time.age;meta.main)

YmagPSF

mag

⁽ⁿ⁾ [14.2/23.2] Y-band DES PSF magnitude (MAG_PSF_Y) ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))

e_YmagPSF

mag

⁽ⁿ⁾ [0.0005/4] YmagPSF uncertainty (MAGERR_PSF_Y) ((unassigned);phys.veloc.orbital;arith.diff;time.age;meta.main)

gmag

mag

⁽ⁿ⁾ [12.8/37.6] DES AUTO g-band magnitude (MAG_AUTO_G) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_gmag

mag

[9e-5/28100] Uncertainty on gmag (MAGERR_AUTO_G) ((unassigned);(unassigned);(unassigned);time.age;stat.probability)

rmag

mag

⁽ⁿ⁾ [13/32.2] DES AUTO r-band magnitude (MAG_AUTO_R) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_rmag

mag

[7e-5/271] Uncertainty on rmag (MAGERR_AUTO_R) ((unassigned);(unassigned);arith.factor;time.age;stat.probability)

imag

mag

⁽ⁿ⁾ [13.6/33.1] DES AUTO i-band magnitude (MAG_AUTO_I) ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

e_imag

mag

[0.0002/1493] Uncertainty on imag (MAGERR_AUTO_I) ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability)

zmag

mag

⁽ⁿ⁾ [13.3/33.8] DES AUTO z-band magnitude (MAG_AUTO_Z) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_zmag

mag

[0.0002/2282] Uncertainty on zmag (MAGERR_AUTO_Z) ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability)

Ymag

mag

⁽ⁿ⁾ [12.9/33.5] DES AUTO Y-band magnitude (MAG_AUTO_Y) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_Ymag

mag

[0.0004/9385] Uncertainty on Ymag (MAGERR_AUTO_Y) ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability)

sigPlx

⁽ⁿ⁾ [0/5] Gaia DR2 parallax significance (PLXSIG) ((unassigned);phys.veloc.orbital;arith.diff;phys.polarization.circular;instr;meta.main)

sigPM

⁽ⁿ⁾ [0/5] Gaia DR2 proper-motion significance (PMSIG) ((unassigned);(unassigned);(unassigned);phys.polarization.circular;instr.param;meta.main)

sepGaia

arcsec

⁽ⁿ⁾ [0/2] Angular distance between DES and Gaia coordinates (SEPARATION_GAIA) ((unassigned);(unassigned);(unassigned);em.mm.50-100GHz)

CNT9

[0/29] Number of sources with a 9" radius circular aperture ((unassigned);(unassigned);(unassigned);src.var)

Dist

arcsec

[0.001/10] Angular distance to the closest neighbor within 9" ((unassigned);phys.veloc.orbital;arith.diff;em.mm.50-100GHz)

CatNIR

(char)

NIR survey; i.e. VHS, VIKING, LAS, 2MASS or UHS (SURVEY_NIR) ((unassigned);stat.filling;arith.factor;spect.line.veloc)

BandNIR

(char)

[JHKY ] NIR bands (BAND_NIR) ((unassigned);phys.veloc.orbital;arith.diff;pos.eq.dec;phys.SFR)

NbNIR

[0/4] Number of NIR bands (NBAND_NIR) ((unassigned);(unassigned);(unassigned);src.var)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

sepNIR

arcsec

[0/2] Angular distance between DES and NIR coordinates (SEPARATION_NIR) (pos.galactic.lon;phys.mol.quadrupole.electric;arith.diff;em.mm.50-100GHz)

Ymag2

mag

⁽ⁿ⁾ [12.8/23.3] Y band (AB) magnitude (MAG_Y) ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))

e_Ymag2

mag

⁽ⁿ⁾ [0.001/0.7] Uncertainty on Ymag (MAGERR_Y) ((unassigned);(unassigned);(unassigned);time.age;meta.main)

Jmag

mag

⁽ⁿ⁾ [13.8/25.4] J-band (AB) magnitude (MAG_J) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_Jmag

mag

⁽ⁿ⁾ [0.001/8] Uncertainty on Jmag (MAGERR_J) ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability)

Hmag

mag

⁽ⁿ⁾ [13/24.1] H-band (AB) magnitude (MAG_H) ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))

e_Hmag

mag

⁽ⁿ⁾ [0.0009/5] Uncertainty on Hmag (MAGERR_H) ((unassigned);(unassigned);(unassigned);time.age;stat.probability)

Kmag

mag

⁽ⁿ⁾ [12.3/22.7] K band (AB) magnitude (MAG_K) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

e_Kmag

mag

⁽ⁿ⁾ [0.0009/2.2] Uncertainty on Kmag (MAGERR_K) ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability)

BandW

(char)

[W1/W2 ] WISE bands (BAND_WISE) ((unassigned);(unassigned);(unassigned);pos.eq.dec;phys.SFR)

NbW

[0/2] Number of WISE bands (NBAND_WISE) ((unassigned);(unassigned);(unassigned);src.var)

sepWISE

arcsec

⁽ⁿ⁾ [0/2] Angular distance between DES and unWISE coordinates (SEPARATION_WISE) ((unassigned);phys.veloc.orbital;arith.diff;em.mm.50-100GHz)

W1mag

mag

⁽ⁿ⁾ [11.3/22.5] WISE W1 (3.4um) band (AB) magnitude (MAG_W1) ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

e_W1mag

mag

⁽ⁿ⁾ [0.0003/0.5] Uncertainty on W1mag (MAGERR_W1) ((unassigned);(unassigned);(unassigned);time.age;stat.probability)

W2mag

mag

⁽ⁿ⁾ [10.7/21.5] WISE W2 (4.6um) band (AB) magnitude (MAG_W2) ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))

e_W2mag

mag

⁽ⁿ⁾ [-1.5/0.5] Uncertainty on W2mag (MAGERR_W2) ((unassigned);phys.veloc.orbital;arith.diff;time.age;stat.probability)

Comb

(char)

DES, NIR, and MIR band combination (COMBINATION) ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)

Ref

(char)

[grizy] DES reference band (REFERENCE_BAND) ((unassigned);(unassigned);(unassigned);phys.veloc.dispersion;meta.ref.url)

Pqso

[0.3/1] P_QSO, skewt-QSO probability fitting to QSO models, described in Equation (10) (P_QSO) ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)

zphotQ

[0.1/7.4] Quasar photo-z (PHOTOZ_QSO) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);meta.main)

z1Q

[0.05/7.2] Lower limit of quasar photo-z (Z1_QSO) ((unassigned);(unassigned);(unassigned);(unassigned);arith.ratio)

z2Q

⁽ⁿ⁾ [0.15/7.9] Upper limit of quasar photo-z (Z2_QSO) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);pos.phaseAng;meta.main)

PzQ

[1e-7/1] Probability of quasar photo-z locating within (z1Q, z2Q), described in Equation (5) (P_QSO_Z) ((unassigned);phys.veloc.orbital;arith.diff;phys.polarization.circular;meta.main)

Pgal

[6e-21/0.5] P_Galaxy, skewt-QSO probability fitting to galaxy models (P_GALAXY) ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)

zphotG

[0.02/1.5] Galaxy photo-z (PHOTOZ_GALAXY) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);meta.main)

z1G

[0.01/1.5] Lower limit of galaxy photo-z (Z1_GALAXY) ((unassigned);(unassigned);(unassigned);(unassigned);arith.ratio)

z2G

⁽ⁿ⁾ [0.03/1.5] Upper limit of galaxy photo-z (Z2_GALAXY) ((unassigned);(unassigned);(unassigned);(unassigned);pos.phaseAng;meta.main)

PzG

[5e-7/1] Probability of galaxy photo-z locating within (z1G, z2G), described in Equation (7) (P_GALAXY_Z) ((unassigned);(unassigned);(unassigned);phys.polarization.circular;meta.main)

Pstar

[5e-17/0.5] P_Star, skewt-QSO probability fitting to star models (P_STAR) ((unassigned);phys.veloc.orbital;arith.diff;phys.polarization.circular;meta.main)

zsp

⁽ⁿ⁾ [0.0038/6.9] Spectroscopic redshift (Z_SPEC) ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)

Catzsp

(char)

Spectroscopic redshift catalog, i.e., SDSS, Milliquas, or LAMOST (Z_SPEC_CAT) ((unassigned);(unassigned);(unassigned);spect.line.veloc)

Clsp

(char)

Spectroscopic classification (i.e. 84978 "QSO", 2261 "Galaxy" and 618 "Star") (CLASS_SPEC) ((unassigned);phys.veloc.orbital;arith.diff;pos.galactic;phys.atmol.sweight;meta.main)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

Adapt form	Display your selection only	Reset to default columns
	Display UCD1+ UCD1

The following problems were encountered in this VizieR run:

****Error execute query: UPDATE METAstat set nother=nother+1, tother=846479763 Where phase=3 and catid=22640009
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104

If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR723712.err (2026-10-28T05:16:01)
-3
-source=J/ApJS/264/9/skewt
-ref=VIZ6ae18513b0b00

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