Black dots -> compressions (C,c,+,U,u)
White dots -> dilatations (D,d,-)
Green dot  -> T-axis
Red dot    -> P-axis

  sta  chan net loc pol a/m   azi   dist author    irsta
  BOG   ???  IR      +     205.32   2.34 ISC       BOG  
  UPA   ???  IR      -     289.49   6.78 ISC       UPA  
  PSO   ???  IR      -     217.77   6.97 ISC       PSO  
  SJS   ???  IR      +     286.99  11.33 ISC       SJS  
  ATB   ???  IR      +     114.99  23.07 ISC       ATB  
  LPB   ???  IR      -     168.06  23.65 ISC       LPB  
  CNCB  ???  IR      -     167.94  23.95 ISC       CNCB 
  CLE   ???  IR      -     348.99  35.41 ISC       CLE  
  SCH   ???  IR      +       4.87  48.20 ISC       SCH  
  EDM   ???  IR      -     332.28  56.71 ISC       EDM  
  FRB   ???  IR      +       2.39  56.98 ISC       FRB  
  PNT   ???  IR      +     325.77  57.64 ISC       PNT  
  YKC   ???  IR      -     339.88  63.29 ISC       YKC  
  DAG   ???  IR      +      11.14  75.72 ISC       DAG  
  ALE   ???  IR      +       1.44  75.88 ISC       ALE  
  BNG   ???  IR      -      85.44  91.08 ISC       BNG  

sta    - Station code (FDSN)
chan   - channel code
net    - Network code (FDSN)
loc    - Location code (FDSN)
pol    - Polarity
a/m    - Automatic or manual pick
azi    - Event to station azimuth (in degrees)
dist   - Event to station distance (in degrees)
author - Author of the polarity
irsta  - International registry station code