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
  DZM   ???  IR      c     275.03  12.44 ISC       DZM  
  CTA   ???  IR      -     270.07  31.31 ISC       CTA  
  ASPA  ???  IR      -     260.48  41.90 ISC       ASPA 
  WB2   ???  IR      -     266.02  42.24 ISC       WB2  
  WRA   ???  IR      +     266.02  42.25 ISC       WRA  
  SPA   ???  IR      -     180.00  66.40 ISC       SPA  
  PRS   ???  IR      +      44.30  81.54 ISC       PRS  
  GCC   ???  IR      +      43.43  81.57 ISC       GCC  
  PCC   ???  IR      +      42.86  81.62 ISC       PCC  
  PRI   ???  IR      +      44.80  81.88 ISC       PRI  
  BKS   ???  IR      -      42.64  81.94 ISC       BKS  
  FRI   ???  IR      +      44.58  83.01 ISC       FRI  
  CMB   ???  IR      +      43.41  83.20 ISC       CMB  
  ORV   ???  IR      +      41.67  83.43 ISC       ORV  
  WDC   ???  IR      +      40.36  83.44 ISC       WDC  
  MIN   ???  IR      +      40.99  83.86 ISC       MIN  
  MNA   ???  IR      +      44.14  84.85 ISC       MNA  

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