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VizieR

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II/281/2mass6x 2MASS 6X Point Source Working Database / Catalog (Cutri+ 2006)
2MASS-6X catalog (24023702 rows)
  2MASS===00424182+4051545
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ColumnValue  Explain   (UCD)
_RAJ200000 42 41.82504 "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+40 51 54.5688 "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)
_RAB195000 39 57.74124 "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+40 35 28.9826 "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)
_Glon121.15000766 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-21.97634672 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)

_MASS00424182+4051545  (i) Source designation (meta.id;meta.main)
RAJ2000010.674271 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+40.865158 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
eeMaj 0.090 arcsec Semi-major axis of the error ellipse (phys.angSize.smajAxis;pos.errorEllipse)
eeMin 0.060 arcsec Semi-minor axis of the error ellipse (phys.angSize.sminAxis;pos.errorEllipse)
eerPA 0.000 deg Position angle of the error ellipse (pos.posAng;pos.errorEllipse)
Jmag 8.488 mag (i) 2MASS J magnitude (1.25um) (phot.mag;em.IR.J)
e_Jmag 0.024 mag 1-σ total error on Jmag (stat.error;phot.mag;em.IR.J)
Hmag 7.760 mag (i) 2MASS H magnitude (1.65um) (phot.mag;em.IR.H)
e_Hmag 0.016 mag 1-σ total error on Hmag (stat.error;phot.mag;em.IR.H)
Kmag 7.517 mag (i) 2MASS Ks magnitude (2.17um) (phot.mag;em.IR.K)
e_Kmag 9.998 mag 1-σ total error on Ksmag (stat.error;phot.mag;em.IR.K)
QflgAAF   [ABCDEFUXZ] JHK Photometric quality flag (Note 1)   (meta.code.qual)
Rflg111  JHK Read flag (rd_flg) (Note 2)   (meta.code)
Xflg2   [0/2] Extended source contamination flag (Note 3)   (meta.code)
JD2451861.6519 d Julian Date of observation (time.epoch)
gcntr56370894  ID of the record Merged Point Source Information table (meta.id;meta.dataset)
GLON121.149995 deg Galactic longitude (pos.galactic.lon)
GLAT-21.976218 deg Galactic latitude (pos.galactic.lat)
Jsig 0.017 mag 1-σ default error on Jmag (stat.error;phot.mag;em.IR.J)
Hsig 0.007 mag 1-σ default error on Hmag (stat.error;phot.mag;em.IR.H)
Ksig 9.998 mag 1-σ default error on Ksmag (stat.error;phot.mag;em.IR.K)
Jsnr 33283.58   J Band Signal/Noise (stat.snr)
Hsnr 23437.43   H Band Signal/Noise (stat.snr)
Ksnr 23421.79   Ks Band Signal/Noise (stat.snr)
OptU127500428501   Optical source designation (meta.id;spect.dopplerVeloc.opt;em.opt)
Dopt 4.73 arcsec Distance between 2MASS and optical source (pos.angDistance)
PAopt 150 deg Position Angle between 2MASS and optical source (pos.posAng)
Bmag11.6 mag B magnitude (phot.mag;em.opt.B)
Rmag10.0 mag V or R magnitude (phot.mag;em.opt.R)
Nopt1   [0/6] Number of optical sources within 5arcsec (meta.number)
Bflg111  JHK Blend flag (bl_flg) (Note 4)   (meta.code)
Cflg000  JHK Contamination and confusion flag (cc_flg) (Note 5)   (meta.code)
Pflg0  Minor Planet flag (mp_flg) (Note 6)   (meta.code)
Ndet333311  Frame detection statistics (Note 7)   (meta.code)
cat1  Catalog flag (1:catalog, 0:arch (meta.code.error;meta.table)
relA   [ABCDEF] Reliability flag (Note 8)   (meta.code.qual)
  
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