%key flag  description (see Cookbook for detailed descriptions)    
  1             SPA     %spikes - SPA - chop only one point!    
  2             TOR     %temperature offset - reject from surface
  3             TPR     %test probe - reject from the surface
  5             HFA     %high frequency filter THE ENTIRE TRACE
  w             WSA     %wire stretch
  e             EFA     %eddy-front region
  r             REA     %repeat profile (within 15 minutes)
  t             TOR     %TOR from cursor
  y             BBA     %bad bathy (replace with missing value)
  u             NTR     %no trace reject - formerly URA     %under resolved profile
  i             IVA     %inversion - confirmed
  o             TOA     %temperature offset - accept!!!  %reject from cursor
  p             PIA     %probable inversion 
  leftbracket   CTA     %constant temperature - accept to 10m and reject below
  rightbracket  STA     %steps - confirmed
  backslash     NON     %not used
  a             NON     %not used
  s             SAA     %surface anomaly
  d             DUR     %duplicate profile - reject
  f             FSA     %fine structure
  g             NON     %not used
  h             HFA     %high frequency noise - filter
  j             PSA     %probable steps
  k             LER     %leakage - reject from cursor position
  l             LEA     %leakage - accept and flag from surface
  semicolon     NON     %not used
  z             HBR     %hit bottom
  x             NGR     %no good - reject from cursor
  c             CSA     %chop surface spikes
  v             IPR     %insulation penetration - reject from cursor
  b             WBR     %wire break - reject from cursor
  n             NUA     %nub
  m             NON     %not used
  comma         IPA     %insulation penetration - interpolate over spike
  period        SPA     %spikes - interpolate over spike(s)