VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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VII/289/dr16q SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)
The SDSS quasar-only catalog from DR16 (DR16Q) (original column names in green) (750414 rows)
  recno=455475
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ColumnValue  Explain   (UCD)
_RAJ200013 08 29.67933 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+30 05 39.0370 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 06 07.18709 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+30 21 38.1810 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon072.32708216 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+85.22475624 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)
455475recno 455475  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SDSS_NAME130829.67+300539.0  (i) SDSS-DR16 designation (HHMMSS.ss+DDMMSS.s; J2000) (SDSS_NAME) (meta.id;meta.main)
RA197.123664 deg (i) Right Ascension (J2000) (RA) (pos.eq.ra;meta.main)
DEC+30.094177 deg (i) [-17.53/84.44] Declination (J2000) (DEC) (pos.eq.dec;meta.main)
Plate 6487  Spectroscopic plate number (Note G1)   (obs.field)
MJD56362  (i) [51608/58543] Spectroscopic Modified Julian Date (Note G1)   (time.epoch)
FIBERID 284  Spectroscopic fiber number (FIBERID) (Note G1)   (meta.number;pos.parallax.spect)
AUTOCLASS_PQNQSO  Object classification post-QuasarNET (Busca & Balland 2018arXiv180809955B) (AUTOCLASS_PQN) (Note 1)   (meta.code)
AUTOCLASS_DR14QQSO  Object classification based only on the DR14Q algorithm (AUTOCLASS_DR14Q) (meta.code.class;src.class)
IS_QSO_QN 1  Binary flag for QuasarNET quasar identification (1=QSO; -1=not processed by QuasarNET) (IS_QSO_QN) (meta.code)
Z_QN 0.804405   [-0.4/6.51] Redshift derived by QuasarNET (Z_QN) (src.redshift;pos.heliocentric)
RANDOM_SELECT0   [0/1] Binary flag indicating objects selected for random visual inspection (0=not selected) (RANDOM_SELECT) (Note G2)   (meta.code)
Z_10K    [0.1/4.3] Redshift from visual inspection of random set (Z_10K) (src.redshift;pos.heliocentric)
Z_CONF_10K-1   [-1/3] Confidence rating for visual inspection redshift of random set (3:highest confidence) (Z_CONF_10K) (Note G3)   (meta.code)
PIPE_CORR_10K-1  Binary flag indicating if the automated pipeline classification and redshift were correct in the random set (PIPE_CORR_10K) (Note G4)   (meta.code)
IS_QSO_10K-1  Binary flag for random set quasar identification (1=QSO; -1=not randomly selected) (IS_QSO_10K) (meta.code)
THING_ID370797736   SDSS identifier mainly for BOSS and eBOSS objects (THING_ID) (meta.id)
Z_VI 0.808000   [0.001/7.02] Redshift from visual inspection (Z_VI) (src.redshift;pos.heliocentric)
Z_CONF 3   [-1/3] Confidence rating for visual inspection redshift (3: highest confidence) (Z_CONF) (meta.code)
CLASS_PERSON 3   [0/50] Object classification from visual inspection (CLASS_PERSON) (Note 2)   (meta.code.class;src.class)
Z_DR12Q 0.808237   [0.04/6.5] Redshift taken from DR12Q (Cat. VII/279) visual inspection (Z_DR12Q) (src.redshift;pos.heliocentric)
IS_QSO_DR12Q 1  Flag indicating if an object was a quasar in DR12Q (1=QSO) (IS_QSO_DR12Q) (meta.code)
Z_DR7Q_SCH 0.8078   [0.06/5.47] Redshift taken from DR7Q (Cat. VII/260) catalog (Z_DR7Q_SCH) (src.redshift;pos.heliocentric)
IS_QSO_DR7Q 1  Flag indicating if an object was a quasar in DR7Q (IS_QSO_DR7Q) (meta.code)
Z_DR6Q_HW 0.808937   [0.07/5.5] Redshift taken from DR6 (Hewett & Wild, 2010, J/MNRAS/405/2302) (Z_DR6Q_HW) (src.redshift;pos.heliocentric)
Z_DR7Q_HW 0.809008   [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)
IS_QSO_FINAL1   [1/2] Flag indicating quasars included in final catalog (1=QSO; 2=questionable – see Section 3.6) (IS_QSO_FINAL) (meta.code)
z 0.808000   [-0.0027/7.03] Best available redshift (src.redshift;pos.heliocentric)
SOURCE_ZVI  Source for redshift z (SOURCE_Z) (Note 3)   (meta.ref;pos.frame)
Z_PIPE 0.808265   [-0.0084/7.05] Redshift from SDSS pipeline version v5130 (Z_PIPE) (src.redshift;pos.heliocentric)
ZWARNING 0   [-1/68] Quality flag on SDSS pipeline redshift estimate (ZWARNING) (G6) Binary flag (Note)   (meta.code.qual)
objID1237665429701197848  SDSS object identification number (sky version, run, rerun, camera column, field number, and ID) (Note G7)   (meta.id)
Z_PCA 0.808558   [-1008/7.3] PCA redshift derived by the redvsblue algorithm (Z_PCA) (src.redshift;pos.heliocentric)
ZWARN_PCA 0   [0/1056] Warning flag for redvsblue redshift (ZWARN_PCA) (G6) Binary flag (Note)   (meta.code.qual)
DELTACHI2_PCA 4.74101e+04   [7/3.31e+7] Δχ2 for PCA redshift versus cubic continuum fit (DELTACHI2_PCA) (stat.fit.chi2)
Z_HALPHA    [-0.015/0.53] PCA line redshift for Hα from redvsblue (Z_HALPHA) (src.redshift;pos.heliocentric)
ZWARN_HALPHA7682   [0/7682] Warning flag for Hα (ZWARN_HALPHA) (G6) Binary flag (Note)   (meta.code.qual)
DELTACHI2_HALPHA 0.00000e+00   [0/2.2e+6] Δχ2 for Hα line redshift versus cubic continuum fit (DELTACHI2_HALPHA) (stat.fit.chi2)
Z_HBETA 0.808339   [-0.02/1.1] PCA line redshift for Hβ from redvsblue (Z_HBETA) (src.redshift;pos.heliocentric)
ZWARN_HBETA 0   [0/7682] Warning flag for Hβ (ZWARN_HBETA) (G6) Binary flag (Note)   (meta.code.qual)
DELTACHI2_HBETA 1.04610e+03   [0/525536] Δχ2 for Hβ line versus cubic continuum fit (DELTACHI2_HBETA) (stat.fit.chi2)
Z_MGII 0.803025   [0.28/2.6] PCA line redshift for MgII from redvsblue (Z_MGII) (src.redshift;pos.heliocentric)
ZWARN_MGII 0   [0/7682] Warning flag for MgII (ZWARN_MGII) (G6) Binary flag (Note)   (meta.code.qual)
DELTACHI2_MGII 1.58778e+03   [0/384079] Δχ2 for MgII line redshift versus cubic continuum fit (DELTACHI2_MGII) (stat.fit.chi2)
Z_CIII 0.887925   [0.8/4.3] PCA line redshift for CIII] from redvsblue (Z_CIII) (src.redshift;pos.heliocentric)
ZWARN_CIII2050   [0/7682] Warning flag for CIII] (ZWARN_CIII) (G6) Binary flag (Note)   (meta.code.qual)
DELTACHI2_CIII 4.50789e-01   [0/547655] Δχ2 for CIII] line redshift versus cubic continuum fit (DELTACHI2_CIII) (stat.fit.chi2)
Z_CIV    [1.3/5.5] PCA line redshift for CIV from redvsblue (Z_CIV) (src.redshift;pos.heliocentric)
ZWARN_CIV7682   [0/7682] Warning flag for CIV (ZWARN_CIV) (G6) Binary flag (Note)   (meta.code.qual)
DELTACHI2_CIV 0.00000e+00   [0/5.5e+6] Δχ2 for CIV line redshift versus cubic continuum fit (DELTACHI2_CIV) (stat.fit.chi2)
Z_LYA    [1.9/7.3] PCA line redshift for Lyα from redvsblue (Z_LYA) (src.redshift;pos.heliocentric)
ZWARN_LYA7682   [0/7682] Warning flag for Lyα (ZWARN_LYA) (G6) Binary flag (Note)   (meta.code.qual)
DELTACHI2_LYA 0.00000e+00   [0/4.5e+6] Δχ2 for Lyα line redshift versus cubic continuum fit (DELTACHI2_LYA) (stat.fit.chi2)
Z_LYAWG 0.808558   [0.03/4] PCA redshift derived from spectra masked blueward of Lyα (Z_LYAWG) (src.redshift;pos.heliocentric)
Z_DLA1    [1.9/6.2] Redshift for damped Lyα feature 1 (Z_DLA1) (src.redshift;pos.heliocentric)
Z_DLA2    [2/5.2] Redshift for damped Lyα feature 2 (Z_DLA2) (src.redshift;pos.heliocentric)
Z_DLA3    [2.1/4.9] Redshift for damped Lyα feature 3 (Z_DLA3) (src.redshift;pos.heliocentric)
Z_DLA4    [2.4/3.7] Redshift for damped Lyα feature 4 (Z_DLA4) (src.redshift;pos.heliocentric)
Z_DLA5    [2.8/3.3] Redshift for damped Lyα feature 5 (Z_DLA5) (src.redshift;pos.heliocentric)
NHI_DLA1  [-] [20.3/22] Absorber column density for damped Lyα feature 1 (NHI_DLA1) (phys.columnDensity)
NHI_DLA2  [-] [20.3/21.8] Absorber column density for damped Lyα feature 2 (NHI_DLA2) (phys.columnDensity)
NHI_DLA3  [-] [20.3/21.4] Absorber column density for damped Lyα feature 3 (NHI_DLA3) (phys.columnDensity)
NHI_DLA4  [-] [20.3/21.1] Absorber column density for damped Lyα feature 4 (NHI_DLA4) (phys.columnDensity)
NHI_DLA5  [-] [20.5/20.6] Absorber column density for damped Lyα feature 5 (NHI_DLA5) (phys.columnDensity)
CONF_DLA1-1.0000  Confidence of detection for damped Lyα feature 1 (CONF_DLA1) (meta.code)
CONF_DLA2-1.0000  Confidence of detection for damped Lyα features (CONF_DLA2) (meta.code)
CONF_DLA3-1.0000  Confidence of detection for damped Lyα features (CONF_DLA3) (meta.code)
CONF_DLA4-1.0000  Confidence of detection for damped Lyα features (CONF_DLA4) (meta.code)
CONF_DLA5-1.0000  Confidence of detection for damped Lyα features (CONF_DLA5) (meta.code)
BAL_PROB-1.000000   [-1/1] BAL probability (BAL_PROB) (Note G8)   (stat.fit.goodness)
BI_CIV  km/s [/109061] BALnicity index for the CIV region (BI_CIV) (spect.line.eqWidth)
ERR_BI_CIV  km/s [0/3.1e+38] BI(CIV) uncertainty (ERR_BI_CIV) (stat.error)
AI_CIV  km/s [-618/121609] Absorption index for the CIV region (AI_CIV) (spect.index)
ERR_AI_CIV  km/s [0/10897] AI(CIV) uncertainty (ERR_AI_CIV) (stat.error)
BI_SIIV  km/s [/85220] BALnicity index for the SiIV region (BI_SIIV) (spect.line.eqWidth)
ERR_BI_SIIV  km/s [0/1985] BI(SIIV) uncertainty (ERR_BI_SIIV) (stat.error)
AI_SIIV  km/s [/45671] Absorption index for the SiIV region (AI_SIIV) (spect.index)
ERR_AI_SIIV  km/s [0/1622] AI(SIIV) uncertainty (ERR_AI_SIIV) (stat.error)
BOSS_TARGET1 0  BOSS target selection flag for the main survey (BOSS_TARGET1) Binary flag (meta.code)
EBOSS_TARGET0 0  eBOSS target selection flag for the pilot survey (SEQUELS) (EBOSS_TARGET0) Binary flag (meta.code)
EBOSS_TARGET1 0  eBOSS target selection flag for the main survey (EBOSS_TARGET1) Binary flag (meta.code)
EBOSS_TARGET2 0  eBOSS target 2 selection flag for the main survey (EBOSS_TARGET2) Binary flag (meta.code)
ANCILLARY_TARGET1 4194304  BOSS target selection flag for the ancillary surveys (ANCILLARY_TARGET1) Binary flag (meta.code)
ANCILLARY_TARGET2 0  BOSS target 2 selection flag for the ancillary surveys (ANCILLARY_TARGET2) (meta.code)
NSPEC_SDSS1   [0/1] Number of additional spectra from SDSS-I/II (NSPEC_SDSS) (Note G9)   (meta.number)
NSPEC_BOSS 0   [0/73] Number of additional spectra from BOSS/eBOSS (NSPEC_BOSS) (Note G9)   (meta.number)
NSPEC 1   [0/73] Total number of additional spectra (NSPEC) (Note G9)   (meta.number)
SKYVERSION2   [2] SDSS photometric sky version number (SKYVERSION) (meta.number)
RUN_NUMBER4646   [94/8162] SDSS imaging run number of photometric measurements (RUN_NUMBER) (meta.id)
RERUN_NUMBER301   [157/301] SDSS photometric processing rerun number (RERUN_NUMBER) (meta.id)
CAMCOL_NUMBER5   [1/6] SDSS camera column number (CAMCOL_NUMBER) (meta.id)
FIELD_NUMBER 31   [11/872] SDSS field number (FIELD_NUMBER) (meta.id;obs.field)
ID_NUMBER 24   [2/4093] SDSS photometric ID (ID_NUMBER) (meta.id;phot)
LAMBDA_EFF5400 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)
ZOFFSET 0.000000 um [0/300] Backstopping offset distance (ZOFFSET) (pos.distance;instr.offset;arith.diff)
Xfocal -51.080257 mm [-325/325] Hole x-axis position in focal plane (pos.cartesian.x;instr.plate)
Yfocal-229.393021 mm [-325/326] Hole y-axis position in focal plane (pos.cartesian.y;instr.plate)
Chunkboss33  Name of tiling chunk (from the plate-list product) (obs.field)
Tile 15333   [-3/17691] Tile number (obs.field)
PLATESN2 15.557000   [0/334] Overall (S/N)2 measure for plate, minimum of all four cameras (PLATESN2) (stat.snr)
PSFFLUXu 116.007416 3.63uJy [-45/2001] PSF flux in u-band in nMgy (not corrected for Galactic extinction) (PSFFLUXu) (phot.mag;em.opt.U)
PSFFLUXg 171.400269 3.63uJy [-0.3/1756] PSF flux in g-band in nMgy (not corrected for Galactic extinction) (PSFFLUXg) (phot.mag;em.opt.B)
PSFFLUXr 193.954697 3.63uJy [-0.6/1646] PSF flux in r-band in nMgy (not corrected for Galactic extinction) (PSFFLUXr) (phot.mag;em.opt.R)
PSFFLUXi 188.690552 3.63uJy [-31/2324] PSF flux in i-band in nMgy (not corrected for Galactic extinction) (PSFFLUXi) (phot.mag;em.opt.I)
PSFFLUXz 218.738159 3.63uJy [-3.2/1777] PSF flux in z-band in nMgy (not corrected for Galactic extinction) (PSFFLUXz) (phot.mag;em.opt.I)
PSFFLUX_IVARu 0.166379 3.63uJy [0/233] Inverse variance of Fu in nMgy (PSFFLUX_IVARu) (phot.mag;em.opt.U)
PSFFLUX_IVARg 0.164899 3.63uJy [0/643] Inverse variance of Fg in nMgy (PSFFLUX_IVARg) (phot.mag;em.opt.B)
PSFFLUX_IVARr 0.208103 3.63uJy [0/160] Inverse variance of Fr in nMgy (PSFFLUX_IVARr) (phot.mag;em.opt.R)
PSFFLUX_IVARi 0.174972 3.63uJy [0/74] Inverse variance of Fi in nMgy (PSFFLUX_IVARi) (phot.mag;em.opt.I)
PSFFLUX_IVARz 0.121031 3.63uJy [0/9] Inverse variance of Fz in nMgy (PSFFLUX_IVARz) (phot.mag;em.opt.I)
PSFMAGu 17.3388 mag [14.2/31] PSF (AB) magnitude in u band (not corrected for Galactic extinction) (PSFMAGu) (phot.mag;em.opt.U)
PSFMAGg 16.9150 mag [14.3/26.4] PSF (AB) magnitude in g band (not corrected for Galactic extinction) (PSFMAGg) (phot.mag;em.opt.B)
PSFMAGr 16.7807 mag [14.4/26.6] PSF (AB) magnitude in r band (not corrected for Galactic extinction) (PSFMAGr) (phot.mag;em.opt.R)
PSFMAGi 16.8106 mag [14/30] PSF (AB) magnitude in i band (not corrected for Galactic extinction) (PSFMAGi) (phot.mag;em.opt.I)
PSFMAGz 16.6502 mag [14.3/24.5] PSF (AB) magnitude in z band (not corrected for Galactic extinction) (PSFMAGz) (src.redshift;pos.heliocentric)
PSFMAGERRu 2.29450e-02 mag [0.007/2.7e+6] umag uncertainty (PSFMAGERRu) (stat.error;phot.mag)
PSFMAGERRg 1.55993e-02 mag [0.007/38] gmag uncertainty (PSFMAGERRg) (stat.error;phot.mag)
PSFMAGERRr 1.22711e-02 mag [0.005/26] rmag uncertainty (PSFMAGERRr) (stat.error;phot.mag)
PSFMAGERRi 1.37559e-02 mag [0.006/2.4e+6] imag uncertainty (PSFMAGERRi) (stat.error;phot.mag)
PSFMAGERRz 1.42673e-02 mag [0.008/114] zmag uncertainty (PSFMAGERRz) (stat.error;phot.mag)
EXTINCTIONu 0.045792 mag [0.009/3.8] Galactic extinction in the u-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONu) (phys.absorption)
EXTINCTIONg 0.035681 mag [0.007/2.8] Galactic extinction in the g-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONg) (phys.absorption)
EXTINCTIONr 0.024684 mag [0.005/2.1] Galactic extinction in the r-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONr) (phys.absorption)
EXTINCTIONi 0.018343 mag [0.003/1.6] Galactic extinction in the i-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONi) (phys.absorption)
EXTINCTIONz 0.013644 mag [0.002/1.1] Galactic extinction in the z-band from Schlafly & Finkbeiner (2011ApJ...737..103S) (EXTINCTIONz) (phys.absorption)
M_I-27.0103 mag [-31.4/2] Absolute i-band magnitude, Mi[z=2] using zPCA redshift, corrected for extinction (M_I) (Note 4)   (phys.magAbs)
SN_MEDIAN_ALL39.6550   [-1.6/77] S/N median value for all good pixels in the five bands (SN_MEDIAN_ALL) (stat.snr)
GALEX_MATCHED1  GALEX matching flag (1=match) (GALEX_MATCHED) (meta.code)
FUV 7.4218 3.63uJy [-1.4/1318] FUV flux for GALEX in nMgy (FUV) (phot.flux;em.UV)
FUV_IVAR 51.9831 3.63uJy [-1/68408] Inverse variance of FFUV in nMgy (FUV_IVAR) (phot.flux;em.UV)
NUV 90.3911 3.63uJy [-1.3/1235] NUV flux for GALEX in nMgy (NUV) (phot.flux;em.UV)
NUV_IVAR 0.0112 3.63uJy Inverse variance of the NUV flux in nMgy (NUV_IVAR) (phot.flux;em.UV)
UKIDSS_MATCHED0  UKIDSS DR8 matching flag (UKIDSS_MATCHED) (meta.code)
YFLUX  W/m2/Hz [-5e-30/1.2e-29] Y-band flux density from UKIDSS (YFLUX) (phot.flux.density;em.IR)
YFLUX_ERR  W/m2/Hz [5.8e-33/6.7e-30] FY uncertainty (YFLUX_ERR) (stat.error)
JFLUX  W/m2/Hz J-band flux density from UKIDSS (JFLUX) (phot.flux.density;em.IR.J)
JFLUX_ERR  W/m2/Hz FJ uncertainty (JFLUX_ERR) (stat.error)
HFLUX  W/m2/Hz H-band flux density from UKIDSS (HFLUX) (phot.flux.density;em.IR.H)
HFLUX_ERR  W/m2/Hz FH uncertainty (HFLUX_ERR) (stat.error)
KFLUX  W/m2/Hz K-band flux density from UKIDSS (KFLUX) (phot.mag;em.IR.K)
KFLUX_ERR  W/m2/Hz FK uncertainty (KFLUX_ERR) (stat.error)
W1_FLUX 8.08976e+03 309.05nJy [-84770/197356] WISE flux in the W1 band (3.4um; Vega, nanomaggies) (W1_FLUX) (Note 5)   (phot.mag;em.IR.3-4um)
W1_FLUX_IVAR 6.46364e-03 309.05nJy-2 [4.5e-6/0.14] Inverse variance of FW1 (Vega, nanomaggies–2) (W1_FLUX_IVAR) (phot.mag;em.IR.3-4um)
W1_MAG12.7302 mag [9.2/31.2] WISE W1-band magnitude (Vega) (W1_MAG) (phot.mag;em.IR.3-4um)
W1_MAG_ERR 0.0017 mag [0.0001/52540] W1mag uncertainty (W1_MAG_ERR) (stat.error;phot.mag)
W1_CHI2 1.48899e+02   [-1/1.2e+6] Profile-weighted ξ2 for the W1 band (W1_CHI2) (stat.fit.chi2)
W1_FLUX_SNR 650.3907   [-5564/14926] Signal-to-noise ratio for the W1 band from the flux and inverse variance (W1_FLUX_SNR) (stat.snr)
W1_SRC_FRAC 0.957615   [-1/1] Fraction of source in profile-weighted fit (W1_SRC_FRAC) (stat.fit.omc)
W1_EXT_FLUX 3.92357e+00   [-12060/6841] Amount of flux added to the profile by nearby sources (W1_EXT_FLUX) (stat.fit.omc)
W1_EXT_FRAC 0.000485   [-205/2488] Fraction of profile flux from nearby sources (W1_EXT_FRAC) (stat.fit.omc)
W1_NPIX 438   [-1/3817] Number of pixels included in the profile fit (W1_NPIX) (meta.number)
W2_FLUX 2.52729e+04 167.66nJy [-127664/527681] WISE flux in the W2 band (4.6um; Vega, nanomaggies) (W2_FLUX) (phot.mag;em.IR.4-8um)
W2_FLUX_IVAR 0.000496 167.66nJy-2 [0/0.011] Inverse variance of FW2 (Vega, nanomaggies–2) (W2_FLUX_IVAR) (phot.mag;em.IR.4-8um)
W2_MAG11.4934 mag [8.1/31.4] WISE W2-band magnitude (Vega) (W2_MAG) (phot.mag;em.IR.4-8um)
W2_MAG_ERR 0.0019 mag [0.0002/245404] W2mag uncertainty (W2_MAG_ERR) (stat.error;phot.mag)
W2_CHI2 1.27841e+02   [-1/114995] Profile-weighted ξ2 for the W2 band (W2_CHI2) (stat.fit.chi2)
W2_FLUX_SNR 562.5900   [-2241/6734] Signal-to-noise ratio for the W2 band from flux and inverse variance (W2_FLUX_SNR) (stat.snr)
W2_SRC_FRAC 0.963821   [-1/1] Fraction of source in the profile-weighted fit (W2_SRC_FRAC) (stat.fit.omc)
W2_EXT_FLUX 3.62508e+00   [-9089/6580] Amount of flux added to the profile by nearby sources (W2_EXT_FLUX) (stat.fit.omc)
W2_EXT_FRAC 0.000143   [-9.7/12145] Fraction of profile flux from nearby sources (W2_EXT_FRAC) (stat.fit.omc)
W2_NPIX 395   [-1/3306] Number of pixels included in the profile fit (W2_NPIX) (meta.number)
FIRST_MATCHED0  Matching flag for FIRST (FIRST_MATCHED) (meta.code)
FIRST_FLUX  mJy [0.75/14775] FIRST peak flux density at 20cm (FIRST_FLUX) (phot.flux.density;em.radio.750-1500MHz)
FIRST_SNR    [5/21190] FIRST flux density S/N (FIRST_SNR) (stat.snr)
SDSS2FIRST_SEP  arcsec [/2] SDSS-FIRST separation (SDSS2FIRST_SEP) (pos;arith.diff)
Jmag15.2820 mag [13/19] 2MASS (Vega) J-band magnitude (phot.mag;em.IR.J)
JMAG_ERR 0.0440 mag [0.018/3] Jmag uncertainty (JMAG_ERR) (stat.error;phot.mag)
JSNR 27.8000   [2.9/215] 2MASS J-band S/N (JSNR) (stat.snr)
JRDFLAG 2   [-1/6] 2MASS J-band photometry flag (JRDFLAG) (meta.code)
Hmag15.1700 mag [12.2/18.2] 2MASS (Vega) H-band magnitude (phot.mag;em.IR.H)
HMAG_ERR 0.0770 mag [0.015/0.6] Hmag uncertainty (HMAG_ERR) (stat.error;phot.mag)
HSNR 14.2000   [1.9/213] 2MASS H-band S/N (HSNR) (stat.snr)
HRDFLAG 2  2MASS H-band photometry flag (HRDFLAG) (meta.code)
Kmag14.2750 mag [11.3/17.7] 2MASS (Vega) K-band magnitude (phot.mag;em.IR.K)
KMAG_ERR 0.0650 mag [0.017/1] Kmag uncertainty (KMAG_ERR) (stat.error;phot.mag)
KSNR 18.3000   [2.2/259] 2MASS K-band S/N (KSNR) (stat.snr)
KRDFLAG 2  2MASS K-band photometry flag (KRDFLAG) (meta.code)
SDSS2MASS_SEP 0.0415 arcsec [0.002/2] SDSS-2MASS separation (SDSS2MASS_SEP) (pos;arith.diff)
2RXSJ130829.6+300537  2nd ROSAT identifier ( 2RXS_ID) (meta.id.cross)
RARdeg 197.12335 deg Right ascension of the ROSAT source (J2000) ( 2RXS_RA) (pos.eq.ra)
DERdeg 30.09367 deg Declination of the ROSAT source (J2000) ( 2RXS_DEC) (pos.eq.dec)
F0.5-2 1.45629e-12 mW/m2 [1e-13/5.6e-11] ROSAT source flux in the 0.5-2.0keV band in erg/s/cm2 ( 2RXSSRCFLUX) (phot.flux;em.X-ray.soft)
e_F0.5-2 1.99373e-13 mW/m2 [0/3.6e-12] F0.5-2 uncertainty ( 2RXSSRCFLUX_ERR) (stat.error)
SDSS2ROSAT_SEP 2.0725 arcsec [0.12/97.4] SDSS-ROSAT separation (SDSS2ROSAT_SEP) (pos;arith.diff)
XMM_SRC_ID    XMM source number (XMM_SRC_ID) (meta.id.cross)
XMM_RA  deg XMM right ascension (J2000) (XMM_RA) (pos.eq.ra)
XMM_DEC  deg XMM declination (J2000) (XMM_DEC) (pos.eq.dec)
XMM_SOFT_FLUX  mW/m2 [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)
XMM_SOFT_FLUX_ERR  mW/m2 [5.2e-17/5e-14] F0.2-2 uncertainty (XMM_SOFT_FLUX_ERR) (stat.error)
XMM_HARD_FLUX  mW/m2 [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)
XMM_HARD_FLUX_ERR  mW/m2 [3.5e-16/3.3e-13] F2-12 uncertainty (XMM_HARD_FLUX_ERR) (stat.error)
XMM_TOTAL_FLUX  mW/m2 [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)
XMM_TOTAL_FLUX_ERR  mW/m2 [5.5e-16/4.7e-13] F0.2-12 uncertainty (XMM_TOTAL_FLUX_ERR) (stat.error)
SDSS2XMM_SEP  arcsec [0.0026/12] SDSS-XMM-Newton separation (SDSS2XMM_SEP) (pos;arith.diff)
GAIA_MATCHED1   [0/1] Gaia matching flag (GAIA_MATCHED) (meta.code)
GAIA_DESIGNATION1462920802239345152   Gaia DR2 identifier (GAIA_DESIGNATION) (meta.id.cross)
GAIA_RA197.1236472 deg Gaia barycentric right ascension (J2015.5) (GAIA_RA) (pos.eq.ra)
GAIA_DEC 30.0941658 deg Gaia barycentric declination (J2015.5) (GAIA_DEC) (pos.eq.dec)
GAIA_PARALLAX -0.0753 mas [-25.2/14] Gaia absolute stellar parallax (J2015.5) (GAIA_PARALLAX) (pos.parallax)
GAIA_PARALLAX_ERR 153.7577 mas [0/1415] Plx uncertainty (GAIA_PARALLAX_ERR) (stat.error;pos.parallax)
GAIA_PM_RA 0.099 mas/yr [-42/38.3] Gaia proper motion in RA (J2015.5) (GAIA_PM_RA) (pos.pm;pos.eq.ra)
GAIA_PM_RA_ERR 99.374 mas/yr [0/763] pmRA uncertainty (GAIA_PM_RA_ERR) (stat.error;pos.pm;pos.eq.ra)
GAIA_PM_DEC -0.011 mas/yr [-40.1/43.3] Gaia proper motion in DEC (J2015.5) (GAIA_PM_DEC) (pos.pm;pos.eq.dec)
GAIA_PM_DEC_ERR128.937 mas/yr [0/725] pmDE uncertainty (GAIA_PM_DEC_ERR) (stat.error;pos.pm;pos.eq.dec)
GAIA_G_MAG16.7148 mag [14.6/22] Gaia mean magnitude in the G band (Vega) (GAIA_G_MAG) (phot.mag;em.opt)
GAIA_G_FLUX_SNR 644.9395   [5/1805] Mean flux over the standard deviation in the (Vega) G band (GAIA_G_FLUX_SNR) (stat.snr)
GAIA_BP_MAG16.8584 mag [0/23.6] Gaia mean magnitude in the (Vega) BP band (GAIA_BP_MAG) (phot.mag;em.opt.B)
GAIA_BP_FLUX_SNR 171.6996   [0/9423] Mean flux over the standard deviation in the (Vega) BP band (GAIA_BP_FLUX_SNR) (stat.snr)
GAIA_RP_MAG16.3658 mag [0/23.2] Gaia mean magnitude in the (Vega) RP band (GAIA_RP_MAG) (phot.mag;em.opt.R)
GAIA_RP_FLUX_SNR 194.3815   [0/39131] Mean flux over the standard deviation in the (Vega) RP band (GAIA_RP_FLUX_SNR) (stat.snr)
SDSS2GAIA_SEP 0.0682 arcsec [0.0001/0.5] SDSS-Gaia separation (SDSS2GAIA_SEP) (pos;arith.diff)

SpSp  Display the SDSS data for this quasar (meta.ref.url)
SimbadSDSS J130829.67+300539.0  ask the Simbad data-base about this object (meta.ref.url)
  
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