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 The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
Post annotation
1.VII/250/spectraObserved spectra (low-quality redshifts are written in red) (269937 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)
  SeqNum  Database serial number (SEQNUM) (
  Name (char) 2dFGRS name (NAME) (;meta.main)
  ObsDate "Y:M:D" (n)UT date of observation (UTDATE) (time.epoch;obs)
  ObsRun (char) Observation run (OBSRUN) (obs.param;obs)
  z.obs  (n) Redshift (observed) (Z) (src.redshift;pos.heliocentric)
  z  (n) Redshift (heliocentric) (Z_HELIO) (src.redshift)
  q_z   [1,5] Redshift quality parameter (QUALITY) (meta.code.qual;src.redshift)
  n_z  Redshift type (abs=1, emi=2, man=3) (ABEMMA) (meta.note)
  z.abs  (n) Cross-correlation redshift (Z_ABS) (src.redshift;pos.heliocentric)
  T  Cross-correlation template (KBESTR) (
  Rx  (n) Cross-correlation R value (R_CRCOR) (
  z.em  (n) ?=-9.99 Emission redshift (Z_EMI) (src.redshift;pos.heliocentric)
  o_z.em  Number of emission lines (NMBEST) (meta.number)
  SNR  Median signal to noise ratio per pixel (SNR) (em.wl.central;stat.median)
  eta  (n) spectral type parameter (Note G1)   (

ALL cols
(n) indicates a possible blank or NULL column  
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