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
  WRA   ???  IR      -     159.61  22.12 ISC       WRA  
  IPM   ???  IR      +     278.55  25.52 ISC       IPM  
  PSI   ???  IR      +     274.38  27.45 ISC       PSI  
  LOE   ???  IR      -     305.58  29.24 ISC       LOE  
  KHT   ???  IR      -     298.14  30.69 ISC       KHT  
  CHG   ???  IR      +     305.25  32.23 ISC       CHG  
  SNY   ???  IR      +     356.87  40.85 ISC       SNY  
  SHL   ???  IR      C     309.30  41.30 ISC       SHL  
  GBA   ???  IR      -     287.01  50.00 ISC       GBA  
  TUP   ???  IR      +     355.38  53.64 ISC       TUP  
  YAK   ???  IR      -       1.81  61.06 ISC       YAK  
  NRI   ???  IR      -     346.78  73.05 ISC       NRI  
  SVE   ???  IR      +     328.94  76.18 ISC       SVE  
  ILT   ???  IR      -      18.59  76.62 ISC       ILT  
  GRS   ???  IR      +     309.65  81.72 ISC       GRS  
  BKR   ???  IR      -     311.70  84.06 ISC       BKR  
  DST   ???  IR      +     309.74  95.39 ISC       DST  

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