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
  SLA   ???  IR      -     113.87   1.69 ISC       SLA  
  ANT   ???  IR      +     275.87   2.96 ISC       ANT  
  CNCB  ???  IR      +     354.10   7.23 ISC       CNCB 
  LPB   ???  IR      +     353.46   7.52 ISC       LPB  
  RFA   ???  IR      -     185.56  10.75 ISC       RFA  
  VAO   ???  IR      +      90.90  18.59 ISC       VAO  
  ATB   ???  IR      -      37.32  25.20 ISC       ATB  
  SPA   ???  IR      -     180.00  66.11 ISC       SPA  
  ALQ   ???  IR      -     326.29  69.47 ISC       ALQ  
  PRI   ???  IR      -     318.39  78.30 ISC       PRI  
  LLA   ???  IR      -     318.60  78.78 ISC       LLA  
  PRS   ???  IR      -     318.15  78.86 ISC       PRS  
  CMB   ???  IR      -     319.98  79.39 ISC       CMB  
  MAW   ???  IR      -     162.75  81.45 ISC       MAW  
  WDC   ???  IR      -     320.80  82.32 ISC       WDC  
  EDM   ???  IR      -     334.26  86.72 ISC       EDM  
  BUL   ???  IR      c     110.61  87.05 ISC       BUL  

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