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  UBVRI and H-beta observations of 3C 390.3 (Shapovalova+ 2001)
Post annotation
1.J/A+A/376/775/table4Log of the spectroscopic observations (46 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Date "Y:M:D" (n)UT Date (time.epoch)
  JD d Julian date (time.epoch)
  Instr (char) Instrumentation code (Note G1)   (;instr)
  Aper1 arcsec Aperture (slit width) (instr.fov)
  Aper2 arcsec Aperture (slit length) (instr.fov)
  Range1 nm Lower value of the spectral range (instr.bandwidth;stat.min)
  Range2 nm Upper value of the spectral range (instr.bandwidth;stat.max)
  Resol 0.1nm Spectral Resolution (spect.resolution)
  Seeing arcsec (n) Seeing (instr.obsty.seeing)
  Seeing2 arcsec (n) Upper value of Seeing when interval (instr.obsty.seeing)
  u_Seeing2 (char) [?] Uncertainty flag on Seeing and Seeing2 (meta.code.error)
  S/N  Signal-to-noise ratio (Note 2)   (stat.snr)
  n_S/N (char) [a] a: Estimated S/N ratio in the line-free continuum (5330-5370Å) (meta.note)

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