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J/ApJ/659/1040
  VLBI monitoring of NGC 4258 (Argon+, 2007)
spectrum
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1.J/ApJ/659/1040/table1The observations (20 rows)
2.J/ApJ/659/1040/table5Channel data for 18 epochs of observation (14291 rows)

 
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Column  Constraint Explain   (UCD)
  (1)Ant (char) Antennas used for the observation (Note 1)   (meta.id;instr)
  (1)Beam1 mas (n) Size beam, average restoring beam full-width half-power (phys.angSize;instr.beam)
  (1)Beam2 mas (n) Size beam, average restoring beam full-width half-power (phys.angSize;instr.beam)
  (1)CB (char) [x-] Coverage in velocity range B = blue-shifted emission (meta.code)
  (1)CL (char) [x-] Coverage in velocity range L = low-velocity emission (meta.code)
  (1)Com (char) Comments (meta.code)
  (1)CR (char) [x-] Coverage in velocity range R = redshift emission (meta.code)
  (1)ExpCode (char) Experiment code (meta.code;obs)
   (ALL)Obs (char) (i) Observation code (meta.code;obs)
  (1)ObsDate "Y:M:D" (n)Observation date (time.epoch;obs)
  (1)ObsYear yr (n) Observation date in decimal year (time.epoch;obs)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)PA deg (n) [-32/39] Beam position angle, measured east of north (pos.posAng;instr.beam)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)Sen mJy (n) Sensivity (Note 2)   (instr.sensitivity)
  (1)Sp (char) Plot of line profile (meta.ref.url)
  (2)Chan  Channel number (meta.id;instr)
  (2)cz km/s Nonrelativistic LSR velocity (Note 1)   (spect.dopplerVeloc;pos.lsr)
  (2)e_EWoff mas Error (fitted random) in EWoff (stat.error)
  (2)e_Flux mJy The rms error in Flux (stat.error;phot.flux)
  (2)e_Majaxis mas Error in Majaxis (stat.error)
  (2)e_Minaxis mas Error in Minaxis (stat.error)
  (2)e_NSoff mas Error (fitted random) in NSoff (stat.error)
  (2)e_PA deg Error in PA (stat.error)
  (2)EWoff mas East-West offset (Note 3)   (pos.angDistance;arith.diff)
  (2)Flux Jy Flux density (Note 2)   (phot.flux.density;em.radio)
  (2)Majaxis mas Major axis of spot (phys.angSize)
  (2)Minaxis mas Minor axis of spot (phys.angSize;src)
  (2)NSoff mas North-South offset (Note 3)   (pos.angDistance;arith.diff)
  (2)RefVel km/s Band identifier for reference velocity (Note 4)   (phys.veloc)
  (2)RelVel km/s Relativistic LSR velocity (Note 1)   (phys.veloc)

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