VizieR

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VizieR

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VIII/65/nvss 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
The NVSS Catalog (1773484 rows)
  recno=1455587
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ColumnValue  Explain   (UCD)
_RAJ200019 38 38.3100 "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+30 23 55.400 "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)
_RAB195019 36 40.1217 "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+30 17 01.256 "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)
_Glon065.0878416 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 +4.2296229 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)
1455587recno 1455587  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

FieldC1930P32  Name of the original survey image field from which the component was derived. (obs.field)
Xpos 65.05 pix X position (RA direction) of the radio source (pos.cartesian.x;instr.det)
Ypos 133.20 pix Y position (Dec direction) of the radio source (pos.cartesian.y;instr.det)
NVSS193838+302355  (i) Source name (Note 1)   (meta.id;meta.main)
RAJ200019 38 38.31 "h:m:s" (i) Right Ascension J2000 (Note 2)   (pos.eq.ra;meta.main)
DEJ2000+30 23 55.4 "d:m:s" (i) Declination J2000 (Note 2)   (pos.eq.dec;meta.main)
e_RAJ2000 0.04 s Mean error on RA (stat.error;pos.eq.ra)
e_DEJ2000 0.6 arcsec Mean error on Dec (stat.error;pos.eq.dec)
S1.4 92.6 mJy Integrated 1.4GHz flux density of radio source (phot.flux.density;em.radio.750-1500MHz)
e_S1.4 2.8 mJy Mean error on S1.4 (stat.error)
l_MajAxis<  Limit flag on MajAxis (meta.code.error;phys.angSize)
MajAxis 18.2 arcsec Fitted (deconvolved) major axis of radio source (phys.angSize;em.radio;meta.modelled)
l_MinAxis<  Limit flag on MinAxis (meta.code.error;phys.angSize)
MinAxis 15.1 arcsec Fitted (deconvolved) minor axis of radio source (phys.angSize;em.radio;meta.modelled)
PA  deg [-90, 90] Position angle of fitted major axis (pos.posAng;meta.modelled)
e_MajAxis  arcsec Mean error on MajAxis (stat.error;phys.angSize)
e_MinAxis  arcsec Mean error on MinAxis (stat.error;phys.angSize)
e_PA  deg Mean error on PA (stat.error)
f_resFlux    [PS* ] Residual Code (Note 3)   (meta.code)
resFlux  mJy Peak residual flux, in mJy/beam (Note 3)   (phot.flux.density;em.radio)
polFlux 0.20 mJy Integrated linearly polarized flux density (phot.flux.density)
polPA 61.3 deg [-90,90] The position angle of polFlux (Note 4)   (pos.posAng;phys.polarization)
e_polFlux 0.53 mJy Mean error on polFlux (stat.error)
e_polPA52.1 deg Mean error on polPA (stat.error)

ImageImage  FITS Image of the target, about 200x200 pixels of 5x5arcsec (or consult http://www.cv.nrao.edu/nvss/postage.shtml) (meta.ref.url)
  
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