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J/ApJ/743/171/2LAC The 2LAC catalog (Ackermann+, 2011)
2LAC catalog: high latitude (tables 3 and 7) and low-latitude sources ((tables 4 and 8) (1121 rows)
  recno=721
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ColumnValue  Explain   (UCD)
_RAJ200015 34 47.3184 "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+37 15 53.892 "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)
_RAB195015 32 54.4909 "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+37 25 50.284 "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)
_Glon059.8595465 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+54.2886367 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)
721recno 721  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
SH  Sample: Low-latitude (|b|<10°) or High-latitude (meta.id)

2FGLJ1535.4+3720  (i) Name of the 2FGL source (JHHMM.m+DDMM) (meta.id;meta.main)

T   T indicates TeV-sources (properties in table 9) (meta.ref.url)

Cl?Y   [NY] Source in Clean sample: Y=Yes, N=No (meta.code)
ListY   [NY] Source in 2FGL list: Y=Yes, N=No (meta.code)
CNameRGB J1534+372  Name of the counterpart (meta.id)
RAJ2000233.69716 deg (i) Counterpart right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+37.26497 deg (i) Counterpart declination (J2000) (pos.eq.dec;meta.main)
Sep 0.148 deg [0.001/0.454] 2FGL and its counterpart angular separation (pos;arith.diff)
ePos 0.146 deg [0.01/0.387] The 95% error radius (stat.error)
OTypeBL Lac  Optical object type (Note G1)   (spect.dopplerVeloc.opt;em.opt)
SEDISP  Type of SED; "-" indicates a NULL value (Note G2)   (meta.note)
z 0.143   [0/3.215] Redshift (Note 1)   (src.redshift)
SpI 2.15   [1.12/3] Spectral Index α (spect.index)
e_SpI 0.16  Error in SpInd (stat.error)
pr 0.83   The Bayesian probability of counterpart (stat.fit.goodness)
NSpr    The logN-logS probability of counterpart (stat.fit.goodness)
RGpr 0.87   Likelihood ratio reliability for Radio-Gamma association (stat.fit.goodness)
XGpr    Likelihood ratio reliability for X-Gamma association (stat.fit.goodness)

SimbadNameRGB J1534+372  Designation understandable by the Simbad data-base (meta.id)

TS 35  Test Statistics: significance (stat.fit.goodness)
RFlux 22.00 mJy [4/138488] Radio flux (phot.flux.density;em.radio)
XFlux 3.68 10-16W/m2 [0.26/7640] X-ray flux; in units of 10–13erg/cm2/s (phot.flux;em.X-ray)
Vmag1 16.64 mag [8.08/23.15] USNO V band magnitude (phot.mag;em.opt.V)
Vmag2 16.43 mag SDSS V band magnitude (phot.mag;em.opt.V)
aox 1.46   Rest frame, multi-frequency optical/X-ray spectral index (between 5000Å and 1keV) (Note 1)   (spect.index)
aro 0.37   Rest frame, multi-frequency radio/optical spectral index (between 5GHz and 5000Å) (Note 1)   (spect.index)
  
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