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
  SGE   ???  IR      -     328.02   9.57 ISC       SGE  
  DZM   ???  IR      c     280.24  15.79 ISC       DZM  
  CTA   ???  IR      +     271.81  34.44 ISC       CTA  
  WRA   ???  IR      +     266.98  45.21 ISC       WRA  
  SPA   ???  IR      +     180.00  64.31 ISC       SPA  
  PRS   ???  IR      +      42.31  80.94 ISC       PRS  
  PCC   ???  IR      +      40.88  81.11 ISC       PCC  
  PRI   ???  IR      +      42.83  81.25 ISC       PRI  
  MHC   ???  IR      +      41.40  81.45 ISC       MHC  
  FRI   ???  IR      +      42.69  82.39 ISC       FRI  
  CMB   ???  IR      +      41.53  82.65 ISC       CMB  
  ORV   ???  IR      +      39.81  83.00 ISC       ORV  
  WDC   ???  IR      +      38.50  83.10 ISC       WDC  

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