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
  TTA   ???  IR      +     244.69   1.87 ISC       TTA  
  FBA   ???  IR      +      58.13   2.27 ISC       FBA  
  IMA   ???  IR      -     346.43   2.38 ISC       IMA  
  PWA   ???  IR      -     151.17   2.41 ISC       PWA  
  PMR   ???  IR      -     144.76   2.64 ISC       PMR  
  PMS   ???  IR      -     152.08   2.84 ISC       PMS  
  SVW   ???  IR      +     211.36   3.09 ISC       SVW  
  SIT   ???  IR      +     121.03  10.74 ISC       SIT  
  FFC   ???  IR      +      86.13  26.59 ISC       FFC  
  FRB   ???  IR      +      51.26  34.53 ISC       FRB  
  DAG   ???  IR      -      16.16  36.76 ISC       DAG  
  KBA   ???  IR      -      10.45  68.91 ISC       KBA  

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