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

	VII/289	248438		SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020) ReadMe+ftp 2020ApJS..250....8L Similar Catalogs Post annotation
1.	VII/289/dr16q		The SDSS quasar-only catalog from DR16 (DR16Q) (original column names in green) (750414 rows) metaVII/289/dr16q

Simple Constraint List Of Constraints

Query by Constraints constraints help

applied on Columns (Output Order: + - )

Standard Original

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Column

Constraint

Explain (UCD)

recno

Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SDSS

(char)

⁽ⁱ⁾ SDSS-DR16 designation (HHMMSS.ss+DDMMSS.s; J2000) (SDSS_NAME) (meta.id;meta.main)

RAJ2000

deg

⁽ⁱ⁾ Right Ascension (J2000) (RA) (pos.eq.ra;meta.main)

DEJ2000

deg

⁽ⁱ⁾ [-17.53/84.44] Declination (J2000) (DEC) (pos.eq.dec;meta.main)

Plate

Spectroscopic plate number (Note G1) (obs.field)

MJD

⁽ⁱ⁾ [51608/58543] Spectroscopic Modified Julian Date (Note G1) (time.epoch)

Fiber

Spectroscopic fiber number (FIBERID) (Note G1) (meta.number;pos.parallax.spect)

(char)

Object classification post-QuasarNET (Busca & Balland 2018arXiv180809955B) (AUTOCLASS_PQN) (Note 1) (meta.code)

DR14Q

(char)

Object classification based only on the DR14Q algorithm (AUTOCLASS_DR14Q) (meta.code.class;src.class)

QQN

Binary flag for QuasarNET quasar identification (1=QSO; -1=not processed by QuasarNET) (IS_QSO_QN) (meta.code)

zQN

⁽ⁿ⁾ [-0.4/6.51] Redshift derived by QuasarNET (Z_QN) (src.redshift;pos.heliocentric)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

10K

[0/1] Binary flag indicating objects selected for random visual inspection (0=not selected) (RANDOM_SELECT) (Note G2) (meta.code)

z10K

⁽ⁿ⁾ [0.1/4.3] Redshift from visual inspection of random set (Z_10K) (src.redshift;pos.heliocentric)

f_z10K

[-1/3] Confidence rating for visual inspection redshift of random set (3:highest confidence) (Z_CONF_10K) (Note G3) (meta.code)

C10K

Binary flag indicating if the automated pipeline classification and redshift were correct in the random set (PIPE_CORR_10K) (Note G4) (meta.code)

Q10K

Binary flag for random set quasar identification (1=QSO; -1=not randomly selected) (IS_QSO_10K) (meta.code)

THINGID

⁽ⁿ⁾ SDSS identifier mainly for BOSS and eBOSS objects (THING_ID) (meta.id)

zvis

⁽ⁿ⁾ [0.001/7.02] Redshift from visual inspection (Z_VI) (src.redshift;pos.heliocentric)

f_zvis

⁽ⁿ⁾ [-1/3] Confidence rating for visual inspection redshift (3: highest confidence) (Z_CONF) (meta.code)

Class

⁽ⁿ⁾ [0/50] Object classification from visual inspection (CLASS_PERSON) (Note 2) (meta.code.class;src.class)

zDR12Q

⁽ⁿ⁾ [0.04/6.5] Redshift taken from DR12Q (Cat. VII/279) visual inspection (Z_DR12Q) (src.redshift;pos.heliocentric)

QDR12Q

Flag indicating if an object was a quasar in DR12Q (1=QSO) (IS_QSO_DR12Q) (meta.code)

zDR7Q

⁽ⁿ⁾ [0.06/5.47] Redshift taken from DR7Q (Cat. VII/260) catalog (Z_DR7Q_SCH) (src.redshift;pos.heliocentric)

QDR7Q

Flag indicating if an object was a quasar in DR7Q (IS_QSO_DR7Q) (meta.code)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

zDR6Q

⁽ⁿ⁾ [0.07/5.5] Redshift taken from DR6 (Hewett & Wild, 2010, J/MNRAS/405/2302) (Z_DR6Q_HW) (src.redshift;pos.heliocentric)

zDR7Qa

⁽ⁿ⁾ [0.06/5.5] Redshift taken from DR7 (Shen+ 2011, J/ApJS/194/45) catalog ancillary columns (Z_DR7Q_HW) (Note G5) (src.redshift;pos.heliocentric)

QSO

[1/2] Flag indicating quasars included in final catalog (1=QSO; 2=questionable – see Section 3.6) (IS_QSO_FINAL) (meta.code)

⁽ⁿ⁾ [-0.0027/7.03] Best available redshift (src.redshift;pos.heliocentric)

r_z

(char)

Source for redshift z (SOURCE_Z) (Note 3) (meta.ref;pos.frame)

zPipe

⁽ⁿ⁾ [-0.0084/7.05] Redshift from SDSS pipeline version v5₁₃0 (Z_PIPE) (src.redshift;pos.heliocentric)

q_zPipe

[-1/68] Quality flag on SDSS pipeline redshift estimate (ZWARNING) (G6) Binary flag (Note) (meta.code.qual)

objID

(char)

SDSS object identification number (sky version, run, rerun, camera column, field number, and ID) (Note G7) (meta.id)

zPCA

[-1008/7.3] PCA redshift derived by the redvsblue algorithm (Z_PCA) (src.redshift;pos.heliocentric)

q_zPCA

[0/1056] Warning flag for redvsblue redshift (ZWARN_PCA) (G6) Binary flag (Note) (meta.code.qual)

Chi2PCA

[7/3.31e+7] Δχ² for PCA redshift versus cubic continuum fit (DELTACHI2_PCA) (stat.fit.chi2)

zHa

⁽ⁿ⁾ [-0.015/0.53] PCA line redshift for Hα from redvsblue (Z_HALPHA) (src.redshift;pos.heliocentric)

q_zHa

[0/7682] Warning flag for Hα (ZWARN_HALPHA) (G6) Binary flag (Note) (meta.code.qual)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

Chi2Ha

[0/2.2e+6] Δχ² for Hα line redshift versus cubic continuum fit (DELTACHI2_HALPHA) (stat.fit.chi2)

zHb

⁽ⁿ⁾ [-0.02/1.1] PCA line redshift for Hβ from redvsblue (Z_HBETA) (src.redshift;pos.heliocentric)

q_zHb

[0/7682] Warning flag for Hβ (ZWARN_HBETA) (G6) Binary flag (Note) (meta.code.qual)

Chi2Hb

[0/525536] Δχ² for Hβ line versus cubic continuum fit (DELTACHI2_HBETA) (stat.fit.chi2)

zMgII

⁽ⁿ⁾ [0.28/2.6] PCA line redshift for MgII from redvsblue (Z_MGII) (src.redshift;pos.heliocentric)

q_zMgII

[0/7682] Warning flag for MgII (ZWARN_MGII) (G6) Binary flag (Note) (meta.code.qual)

Chi2MgII

[0/384079] Δχ² for MgII line redshift versus cubic continuum fit (DELTACHI2_MGII) (stat.fit.chi2)

zCIII

⁽ⁿ⁾ [0.8/4.3] PCA line redshift for CIII] from redvsblue (Z_CIII) (src.redshift;pos.heliocentric)

q_zCIII

[0/7682] Warning flag for CIII] (ZWARN_CIII) (G6) Binary flag (Note) (meta.code.qual)

Chi2CIII

[0/547655] Δχ² for CIII] line redshift versus cubic continuum fit (DELTACHI2_CIII) (stat.fit.chi2)

zCIV

⁽ⁿ⁾ [1.3/5.5] PCA line redshift for CIV from redvsblue (Z_CIV) (src.redshift;pos.heliocentric)

q_zCIV

[0/7682] Warning flag for CIV (ZWARN_CIV) (G6) Binary flag (Note) (meta.code.qual)

Chi2CIV

[0/5.5e+6] Δχ² for CIV line redshift versus cubic continuum fit (DELTACHI2_CIV) (stat.fit.chi2)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

zLyA

⁽ⁿ⁾ [1.9/7.3] PCA line redshift for Lyα from redvsblue (Z_LYA) (src.redshift;pos.heliocentric)

q_zLyA

[0/7682] Warning flag for Lyα (ZWARN_LYA) (G6) Binary flag (Note) (meta.code.qual)

Chi2LyA

[0/4.5e+6] Δχ² for Lyα line redshift versus cubic continuum fit (DELTACHI2_LYA) (stat.fit.chi2)

zLyaB

⁽ⁿ⁾ [0.03/4] PCA redshift derived from spectra masked blueward of Lyα (Z_LYAWG) (src.redshift;pos.heliocentric)

zDLA1

⁽ⁿ⁾ [1.9/6.2] Redshift for damped Lyα feature 1 (Z_DLA1) (src.redshift;pos.heliocentric)

zDLA2

⁽ⁿ⁾ [2/5.2] Redshift for damped Lyα feature 2 (Z_DLA2) (src.redshift;pos.heliocentric)

zDLA3

⁽ⁿ⁾ [2.1/4.9] Redshift for damped Lyα feature 3 (Z_DLA3) (src.redshift;pos.heliocentric)

zDLA4

⁽ⁿ⁾ [2.4/3.7] Redshift for damped Lyα feature 4 (Z_DLA4) (src.redshift;pos.heliocentric)

zDLA5

⁽ⁿ⁾ [2.8/3.3] Redshift for damped Lyα feature 5 (Z_DLA5) (src.redshift;pos.heliocentric)

NHIDLA1

[-]

⁽ⁿ⁾ [20.3/22] Absorber column density for damped Lyα feature 1 (NHI_DLA1) (phys.columnDensity)

NHIDLA2

[-]

⁽ⁿ⁾ [20.3/21.8] Absorber column density for damped Lyα feature 2 (NHI_DLA2) (phys.columnDensity)

NHIDLA3

[-]

⁽ⁿ⁾ [20.3/21.4] Absorber column density for damped Lyα feature 3 (NHI_DLA3) (phys.columnDensity)

NHIDLA4

[-]

⁽ⁿ⁾ [20.3/21.1] Absorber column density for damped Lyα feature 4 (NHI_DLA4) (phys.columnDensity)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

NHIDLA5

[-]

⁽ⁿ⁾ [20.5/20.6] Absorber column density for damped Lyα feature 5 (NHI_DLA5) (phys.columnDensity)

f_zDLA1

Confidence of detection for damped Lyα feature 1 (CONF_DLA1) (meta.code)

f_zDLA2

Confidence of detection for damped Lyα features (CONF_DLA2) (meta.code)

f_zDLA3

Confidence of detection for damped Lyα features (CONF_DLA3) (meta.code)

f_zDLA4

Confidence of detection for damped Lyα features (CONF_DLA4) (meta.code)

f_zDLA5

Confidence of detection for damped Lyα features (CONF_DLA5) (meta.code)

PBAL

[-1/1] BAL probability (BAL_PROB) (Note G8) (stat.fit.goodness)

BI(CIV)

km/s

⁽ⁿ⁾ [/109061] BALnicity index for the CIV region (BI_CIV) (spect.line.eqWidth)

e_BI(CIV)

km/s

⁽ⁿ⁾ [0/3.1e+38] BI(CIV) uncertainty (ERR_BI_CIV) (stat.error)

AI(CIV)

km/s

⁽ⁿ⁾ [-618/121609] Absorption index for the CIV region (AI_CIV) (spect.index)

e_AI(CIV)

km/s

⁽ⁿ⁾ [0/10897] AI(CIV) uncertainty (ERR_AI_CIV) (stat.error)

BI(SIIV)

km/s

⁽ⁿ⁾ [/85220] BALnicity index for the SiIV region (BI_SIIV) (spect.line.eqWidth)

e_BI(SIIV)

km/s

⁽ⁿ⁾ [0/1985] BI(SIIV) uncertainty (ERR_BI_SIIV) (stat.error)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

AI(SIIV)

km/s

⁽ⁿ⁾ [/45671] Absorption index for the SiIV region (AI_SIIV) (spect.index)

e_AI(SIIV)

km/s

⁽ⁿ⁾ [0/1622] AI(SIIV) uncertainty (ERR_AI_SIIV) (stat.error)

Btarg1

BOSS target selection flag for the main survey (BOSS_TARGET1) Binary flag (meta.code)

eBOSST0

eBOSS target selection flag for the pilot survey (SEQUELS) (EBOSS_TARGET0) Binary flag (meta.code)

eBOSST1

eBOSS target selection flag for the main survey (EBOSS_TARGET1) Binary flag (meta.code)

eBOSST2

eBOSS target 2 selection flag for the main survey (EBOSS_TARGET2) Binary flag (meta.code)

Atarg1

BOSS target selection flag for the ancillary surveys (ANCILLARY_TARGET1) Binary flag (meta.code)

Atarg2

BOSS target 2 selection flag for the ancillary surveys (ANCILLARY_TARGET2) (meta.code)

NspI

[0/1] Number of additional spectra from SDSS-I/II (NSPEC_SDSS) (Note G9) (meta.number)

NspBOSS

[0/73] Number of additional spectra from BOSS/eBOSS (NSPEC_BOSS) (Note G9) (meta.number)

Nsp

[0/73] Total number of additional spectra (NSPEC) (Note G9) (meta.number)

Sky

⁽ⁿ⁾ [2] SDSS photometric sky version number (SKYVERSION) (meta.number)

Run

⁽ⁿ⁾ [94/8162] SDSS imaging run number of photometric measurements (RUN_NUMBER) (meta.id)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

Rerun

⁽ⁿ⁾ [157/301] SDSS photometric processing rerun number (RERUN_NUMBER) (meta.id)

Cam

⁽ⁿ⁾ [1/6] SDSS camera column number (CAMCOL_NUMBER) (meta.id)

Field

⁽ⁿ⁾ [11/872] SDSS field number (FIELD_NUMBER) (meta.id;obs.field)

photID

⁽ⁿ⁾ [2/4093] SDSS photometric ID (ID_NUMBER) (meta.id;phot)

lambda

0.1nm

[4000/7500] Wavelength for which the fiber placement was optimized to account for atmospheric differential refraction (Dawson+ 2013AJ....145...10D), in Å (LAMBDA_EFF) (em.wl)

Offset

[0/300] Backstopping offset distance (ZOFFSET) (pos.distance;instr.offset;arith.diff)

Xfocal

[-325/325] Hole x-axis position in focal plane (pos.cartesian.x;instr.plate)

Yfocal

[-325/326] Hole y-axis position in focal plane (pos.cartesian.y;instr.plate)

Chunk

(char)

Name of tiling chunk (from the plate-list product) (obs.field)

Tile

[-3/17691] Tile number (obs.field)

SN2

[0/334] Overall (S/N)² measure for plate, minimum of all four cameras (PLATESN2) (stat.snr)

3.63uJy

⁽ⁿ⁾ [-45/2001] PSF flux in u-band in nMgy (not corrected for Galactic extinction) (PSFFLUXu) (phot.mag;em.opt.U)

3.63uJy

⁽ⁿ⁾ [-0.3/1756] PSF flux in g-band in nMgy (not corrected for Galactic extinction) (PSFFLUXg) (phot.mag;em.opt.B)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

3.63uJy

⁽ⁿ⁾ [-0.6/1646] PSF flux in r-band in nMgy (not corrected for Galactic extinction) (PSFFLUXr) (phot.mag;em.opt.R)

3.63uJy

⁽ⁿ⁾ [-31/2324] PSF flux in i-band in nMgy (not corrected for Galactic extinction) (PSFFLUXi) (phot.mag;em.opt.I)

3.63uJy

⁽ⁿ⁾ [-3.2/1777] PSF flux in z-band in nMgy (not corrected for Galactic extinction) (PSFFLUXz) (phot.mag;em.opt.I)

IVFu

3.63uJy

⁽ⁿ⁾ [0/233] Inverse variance of Fu in nMgy (PSFFLUX_IVARu) (phot.mag;em.opt.U)

IVFg

3.63uJy

⁽ⁿ⁾ [0/643] Inverse variance of Fg in nMgy (PSFFLUX_IVARg) (phot.mag;em.opt.B)

IVFr

3.63uJy

⁽ⁿ⁾ [0/160] Inverse variance of Fr in nMgy (PSFFLUX_IVARr) (phot.mag;em.opt.R)

IVFi

3.63uJy

⁽ⁿ⁾ [0/74] Inverse variance of Fi in nMgy (PSFFLUX_IVARi) (phot.mag;em.opt.I)

IVFz

3.63uJy

⁽ⁿ⁾ [0/9] Inverse variance of Fz in nMgy (PSFFLUX_IVARz) (phot.mag;em.opt.I)

umag

mag

⁽ⁿ⁾ [14.2/31] PSF (AB) magnitude in u band (not corrected for Galactic extinction) (PSFMAGu) (phot.mag;em.opt.U)

gmag

mag

⁽ⁿ⁾ [14.3/26.4] PSF (AB) magnitude in g band (not corrected for Galactic extinction) (PSFMAGg) (phot.mag;em.opt.B)

rmag

mag

⁽ⁿ⁾ [14.4/26.6] PSF (AB) magnitude in r band (not corrected for Galactic extinction) (PSFMAGr) (phot.mag;em.opt.R)

imag

mag

⁽ⁿ⁾ [14/30] PSF (AB) magnitude in i band (not corrected for Galactic extinction) (PSFMAGi) (phot.mag;em.opt.I)

zmag

mag

⁽ⁿ⁾ [14.3/24.5] PSF (AB) magnitude in z band (not corrected for Galactic extinction) (PSFMAGz) (src.redshift;pos.heliocentric)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

e_umag

mag

⁽ⁿ⁾ [0.007/2.7e+6] umag uncertainty (PSFMAGERRu) (stat.error;phot.mag)

e_gmag

mag

⁽ⁿ⁾ [0.007/38] gmag uncertainty (PSFMAGERRg) (stat.error;phot.mag)

e_rmag

mag

⁽ⁿ⁾ [0.005/26] rmag uncertainty (PSFMAGERRr) (stat.error;phot.mag)

e_imag

mag

⁽ⁿ⁾ [0.006/2.4e+6] imag uncertainty (PSFMAGERRi) (stat.error;phot.mag)

e_zmag

mag

⁽ⁿ⁾ [0.008/114] zmag uncertainty (PSFMAGERRz) (stat.error;phot.mag)

Extu

mag

⁽ⁿ⁾ [0.009/3.8] Galactic extinction in the u-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONu) (phys.absorption)

Extg

mag

⁽ⁿ⁾ [0.007/2.8] Galactic extinction in the g-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONg) (phys.absorption)

Extr

mag

⁽ⁿ⁾ [0.005/2.1] Galactic extinction in the r-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONr) (phys.absorption)

Exti

mag

⁽ⁿ⁾ [0.003/1.6] Galactic extinction in the i-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONi) (phys.absorption)

Extz

mag

⁽ⁿ⁾ [0.002/1.1] Galactic extinction in the z-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONz) (phys.absorption)

iMAG

mag

[-31.4/2] Absolute i-band magnitude, M_i[z=2] using zPCA redshift, corrected for extinction (M_I) (Note 4) (phys.magAbs)

SNR

[-1.6/77] S/N median value for all good pixels in the five bands (SN_MEDIAN_ALL) (stat.snr)

GALEX

GALEX matching flag (1=match) (GALEX_MATCHED) (meta.code)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

FFUV

3.63uJy

[-1.4/1318] FUV flux for GALEX in nMgy (FUV) (phot.flux;em.UV)

IVFUV

3.63uJy

[-1/68408] Inverse variance of FFUV in nMgy (FUV_IVAR) (phot.flux;em.UV)

FNUV

3.63uJy

[-1.3/1235] NUV flux for GALEX in nMgy (NUV) (phot.flux;em.UV)

IVNUV

3.63uJy

Inverse variance of the NUV flux in nMgy (NUV_IVAR) (phot.flux;em.UV)

UKIDSS

UKIDSS DR8 matching flag (UKIDSS_MATCHED) (meta.code)

W/m2/Hz

⁽ⁿ⁾ [-5e-30/1.2e-29] Y-band flux density from UKIDSS (YFLUX) (phot.flux.density;em.IR)

e_FY

W/m2/Hz

⁽ⁿ⁾ [5.8e-33/6.7e-30] FY uncertainty (YFLUX_ERR) (stat.error)

W/m2/Hz

⁽ⁿ⁾ J-band flux density from UKIDSS (JFLUX) (phot.flux.density;em.IR.J)

e_FJ

W/m2/Hz

⁽ⁿ⁾ FJ uncertainty (JFLUX_ERR) (stat.error)

W/m2/Hz

⁽ⁿ⁾ H-band flux density from UKIDSS (HFLUX) (phot.flux.density;em.IR.H)

e_FH

W/m2/Hz

⁽ⁿ⁾ FH uncertainty (HFLUX_ERR) (stat.error)

W/m2/Hz

⁽ⁿ⁾ K-band flux density from UKIDSS (KFLUX) (phot.mag;em.IR.K)

e_FK

W/m2/Hz

⁽ⁿ⁾ FK uncertainty (KFLUX_ERR) (stat.error)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

FW1

309.05nJy

[-84770/197356] WISE flux in the W1 band (3.4um; Vega, nanomaggies) (W1_FLUX) (Note 5) (phot.mag;em.IR.3-4um)

IVW1

309.05nJy-2

⁽ⁿ⁾ [4.5e-6/0.14] Inverse variance of FW1 (Vega, nanomaggies^–2) (W1_FLUX_IVAR) (phot.mag;em.IR.3-4um)

W1mag

mag

⁽ⁿ⁾ [9.2/31.2] WISE W1-band magnitude (Vega) (W1_MAG) (phot.mag;em.IR.3-4um)

e_W1mag

mag

⁽ⁿ⁾ [0.0001/52540] W1mag uncertainty (W1_MAG_ERR) (stat.error;phot.mag)

Chi2W1

[-1/1.2e+6] Profile-weighted ξ² for the W1 band (W1_CHI2) (stat.fit.chi2)

SNFW1

[-5564/14926] Signal-to-noise ratio for the W1 band from the flux and inverse variance (W1_FLUX_SNR) (stat.snr)

fracW1

[-1/1] Fraction of source in profile-weighted fit (W1_SRC_FRAC) (stat.fit.omc)

ExtFW1

[-12060/6841] Amount of flux added to the profile by nearby sources (W1_EXT_FLUX) (stat.fit.omc)

ExtW1

[-205/2488] Fraction of profile flux from nearby sources (W1_EXT_FRAC) (stat.fit.omc)

NW1

[-1/3817] Number of pixels included in the profile fit (W1_NPIX) (meta.number)

FW2

167.66nJy

[-127664/527681] WISE flux in the W2 band (4.6um; Vega, nanomaggies) (W2_FLUX) (phot.mag;em.IR.4-8um)

IVW2

167.66nJy-2

⁽ⁿ⁾ [0/0.011] Inverse variance of FW2 (Vega, nanomaggies^–2) (W2_FLUX_IVAR) (phot.mag;em.IR.4-8um)

W2mag

mag

⁽ⁿ⁾ [8.1/31.4] WISE W2-band magnitude (Vega) (W2_MAG) (phot.mag;em.IR.4-8um)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

e_W2mag

mag

⁽ⁿ⁾ [0.0002/245404] W2mag uncertainty (W2_MAG_ERR) (stat.error;phot.mag)

Chi2W2

[-1/114995] Profile-weighted ξ² for the W2 band (W2_CHI2) (stat.fit.chi2)

SNFW2

[-2241/6734] Signal-to-noise ratio for the W2 band from flux and inverse variance (W2_FLUX_SNR) (stat.snr)

fracW2

[-1/1] Fraction of source in the profile-weighted fit (W2_SRC_FRAC) (stat.fit.omc)

ExtFW2

[-9089/6580] Amount of flux added to the profile by nearby sources (W2_EXT_FLUX) (stat.fit.omc)

ExtW2

[-9.7/12145] Fraction of profile flux from nearby sources (W2_EXT_FRAC) (stat.fit.omc)

NW2

[-1/3306] Number of pixels included in the profile fit (W2_NPIX) (meta.number)

FIRST

Matching flag for FIRST (FIRST_MATCHED) (meta.code)

F1.4p

mJy

⁽ⁿ⁾ [0.75/14775] FIRST peak flux density at 20cm (FIRST_FLUX) (phot.flux.density;em.radio.750-1500MHz)

SNF

⁽ⁿ⁾ [5/21190] FIRST flux density S/N (FIRST_SNR) (stat.snr)

SepF

arcsec

⁽ⁿ⁾ [/2] SDSS-FIRST separation (SDSS2FIRST_SEP) (pos;arith.diff)

Jmag

mag

⁽ⁿ⁾ [13/19] 2MASS (Vega) J-band magnitude (phot.mag;em.IR.J)

e_Jmag

mag

⁽ⁿ⁾ [0.018/3] Jmag uncertainty (JMAG_ERR) (stat.error;phot.mag)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

SNRJ

⁽ⁿ⁾ [2.9/215] 2MASS J-band S/N (JSNR) (stat.snr)

f_Jmag

[-1/6] 2MASS J-band photometry flag (JRDFLAG) (meta.code)

Hmag

mag

⁽ⁿ⁾ [12.2/18.2] 2MASS (Vega) H-band magnitude (phot.mag;em.IR.H)

e_Hmag

mag

⁽ⁿ⁾ [0.015/0.6] Hmag uncertainty (HMAG_ERR) (stat.error;phot.mag)

SNRH

⁽ⁿ⁾ [1.9/213] 2MASS H-band S/N (HSNR) (stat.snr)

f_Hmag

2MASS H-band photometry flag (HRDFLAG) (meta.code)

Kmag

mag

⁽ⁿ⁾ [11.3/17.7] 2MASS (Vega) K-band magnitude (phot.mag;em.IR.K)

e_Kmag

mag

⁽ⁿ⁾ [0.017/1] Kmag uncertainty (KMAG_ERR) (stat.error;phot.mag)

SNRK

⁽ⁿ⁾ [2.2/259] 2MASS K-band S/N (KSNR) (stat.snr)

f_Kmag

2MASS K-band photometry flag (KRDFLAG) (meta.code)

Sep2M

arcsec

⁽ⁿ⁾ [0.002/2] SDSS-2MASS separation (SDSS2MASS_SEP) (pos;arith.diff)

2RXS

(char)

2nd ROSAT identifier ( 2RXS_ID) (meta.id.cross)

RARdeg

deg

⁽ⁿ⁾ Right ascension of the ROSAT source (J2000) ( 2RXS_RA) (pos.eq.ra)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

DERdeg

deg

⁽ⁿ⁾ Declination of the ROSAT source (J2000) ( 2RXS_DEC) (pos.eq.dec)

F0.5-2

mW/m2

⁽ⁿ⁾ [1e-13/5.6e-11] ROSAT source flux in the 0.5-2.0keV band in erg/s/cm² ( 2RXS_SRCFLUX) (phot.flux;em.X-ray.soft)

e_F0.5-2

mW/m2

⁽ⁿ⁾ [0/3.6e-12] F0.5-2 uncertainty ( 2RXS_SRCFLUX_ERR) (stat.error)

SepRX

arcsec

⁽ⁿ⁾ [0.12/97.4] SDSS-ROSAT separation (SDSS2ROSAT_SEP) (pos;arith.diff)

XMM

⁽ⁿ⁾ XMM source number (XMM_SRC_ID) (meta.id.cross)

RAXdeg

deg

⁽ⁿ⁾ XMM right ascension (J2000) (XMM_RA) (pos.eq.ra)

DEXdeg

deg

⁽ⁿ⁾ XMM declination (J2000) (XMM_DEC) (pos.eq.dec)

F0.2-2

mW/m2

⁽ⁿ⁾ [0/6.4e-12] XMM soft (0.2-2.0keV) X-ray flux in erg/s/cm² (XMM_SOFT_FLUX) (phot.flux;em.X-ray)

e_F0.2-2

mW/m2

⁽ⁿ⁾ [5.2e-17/5e-14] F0.2-2 uncertainty (XMM_SOFT_FLUX_ERR) (stat.error)

F2-12

mW/m2

⁽ⁿ⁾ [0/8.6e-12] XMM hard (2.0-12.0keV) X-ray flux in erg/s/cm² (XMM_HARD_FLUX) (phot.flux;em.X-ray)

e_F2-12

mW/m2

⁽ⁿ⁾ [3.5e-16/3.3e-13] F2-12 uncertainty (XMM_HARD_FLUX_ERR) (stat.error)

F0.2-12

mW/m2

⁽ⁿ⁾ [1.8e-15/1.5e-11] XMM total (0.2-12.0keV) X-ray flux in erg/s/cm² (XMM_TOTAL_FLUX) (phot.flux;em.X-ray)

e_F0.2-12

mW/m2

⁽ⁿ⁾ [5.5e-16/4.7e-13] F0.2-12 uncertainty (XMM_TOTAL_FLUX_ERR) (stat.error)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

SepXM

arcsec

⁽ⁿ⁾ [0.0026/12] SDSS-XMM-Newton separation (SDSS2XMM_SEP) (pos;arith.diff)

MatchG

[0/1] Gaia matching flag (GAIA_MATCHED) (meta.code)

Gaia

⁽ⁿ⁾ Gaia DR2 identifier (GAIA_DESIGNATION) (meta.id.cross)

RAGdeg

deg

⁽ⁿ⁾ Gaia barycentric right ascension (J2015.5) (GAIA_RA) (pos.eq.ra)

DEGdeg

deg

⁽ⁿ⁾ Gaia barycentric declination (J2015.5) (GAIA_DEC) (pos.eq.dec)

Plx

mas

[-25.2/14] Gaia absolute stellar parallax (J2015.5) (GAIA_PARALLAX) (pos.parallax)

e_Plx

mas

⁽ⁿ⁾ [0/1415] Plx uncertainty (GAIA_PARALLAX_ERR) (stat.error;pos.parallax)

pmRA

mas/yr

[-42/38.3] Gaia proper motion in RA (J2015.5) (GAIA_PM_RA) (pos.pm;pos.eq.ra)

e_pmRA

mas/yr

⁽ⁿ⁾ [0/763] pmRA uncertainty (GAIA_PM_RA_ERR) (stat.error;pos.pm;pos.eq.ra)

pmDE

mas/yr

[-40.1/43.3] Gaia proper motion in DEC (J2015.5) (GAIA_PM_DEC) (pos.pm;pos.eq.dec)

e_pmDE

mas/yr

⁽ⁿ⁾ [0/725] pmDE uncertainty (GAIA_PM_DEC_ERR) (stat.error;pos.pm;pos.eq.dec)

Gmag

mag

⁽ⁿ⁾ [14.6/22] Gaia mean magnitude in the G band (Vega) (GAIA_G_MAG) (phot.mag;em.opt)

SNG

⁽ⁿ⁾ [5/1805] Mean flux over the standard deviation in the (Vega) G band (GAIA_G_FLUX_SNR) (stat.snr)

BPmag

mag

⁽ⁿ⁾ [0/23.6] Gaia mean magnitude in the (Vega) BP band (GAIA_BP_MAG) (phot.mag;em.opt.B)

SNBP

⁽ⁿ⁾ [0/9423] Mean flux over the standard deviation in the (Vega) BP band (GAIA_BP_FLUX_SNR) (stat.snr)

RPmag

mag

⁽ⁿ⁾ [0/23.2] Gaia mean magnitude in the (Vega) RP band (GAIA_RP_MAG) (phot.mag;em.opt.R)

SNRP

⁽ⁿ⁾ [0/39131] Mean flux over the standard deviation in the (Vega) RP band (GAIA_RP_FLUX_SNR) (stat.snr)

SepG

arcsec

⁽ⁿ⁾ [0.0001/0.5] SDSS-Gaia separation (SDSS2GAIA_SEP) (pos;arith.diff)

Display the SDSS data for this quasar (meta.ref.url) (DATA_LINK)

Simbad

ask the Simbad data-base about this object (meta.ref.url) (DATA_LINK)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

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