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
  TWD   ???  IR      +     275.36   0.81 ISC       TWD  
  TWC   ???  IR      -     316.56   0.83 ISC       TWC  
  TWF1  ???  IR      +     239.10   1.26 ISC       TWF1 
  ANP   ???  IR      -     323.71   1.46 ISC       ANP  
  ISI   ???  IR      -      77.82   1.58 ISC       ISI  
  PIP   ???  IR      -     197.37   5.91 ISC       PIP  
  SSE   ???  IR      +     351.10   7.15 ISC       SSE  
  PPR   ???  IR      -     194.80  14.60 ISC       PPR  
  GBA   ???  IR      +     264.67  43.71 ISC       GBA  
  WRA   ???  IR      -     164.18  45.19 ISC       WRA  
  ASPA  ???  IR      +     166.00  48.67 ISC       ASPA 
  KSP   ???  IR      +     321.98  81.30 ISC       KSP  

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