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
  CTA   ???  IR      +     143.82  32.19 ISC       CTA  
  CTAO  ???  IR      +     143.82  32.19 ISC       CTAO 
  HYB   ???  IR      -     287.99  48.40 ISC       HYB  
  GBA   ???  IR      +     282.83  49.08 ISC       GBA  
  ELT   ???  IR      +     332.49  57.58 ISC       ELT  
  SEM   ???  IR      +     327.19  58.88 ISC       SEM  
  TIK   ???  IR      +       0.75  65.68 ISC       TIK  
  ARU   ???  IR      +     327.39  73.11 ISC       ARU  
  BKR   ???  IR      -     311.20  81.04 ISC       BKR  
  MOS   ???  IR      -     325.39  84.66 ISC       MOS  
  OBN   ???  IR      -     324.80  85.29 ISC       OBN  

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