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
  CHN2  ???  IR      D     318.04   0.04 TAP       CHN2 
  CHY   ???  IR      C     264.83   0.07 TAP       CHY  
  CHN4  ???  IR      C     151.28   0.17 TAP       CHN4 
  WGK   ???  IR      D      16.89   0.19 TAP       WGK  
  TWK   ???  IR      D     183.13   0.24 TAP       TWK  
  CHN7  ???  IR      C     265.36   0.25 TAP       CHN7 
  WTP   ???  IR      D     158.17   0.28 TAP       WTP  
  ALS   ???  IR      C      88.68   0.28 TAP       ALS  
  WSF   ???  IR      C     297.45   0.29 TAP       WSF  
  CHN8  ???  IR      C     239.55   0.31 TAP       CHN8 
  CHN1  ???  IR      D     175.71   0.32 TAP       CHN1 
  WTCT  ???  IR      C     330.54   0.41 TAP       WTCT 
  STYT  ???  IR      D     145.35   0.41 TAP       STYT 
  YUS   ???  IR      C      91.97   0.41 TAP       YUS  
  TYC   ???  IR      D      39.20   0.51 TAP       TYC  
  SMLT  ???  IR      D      43.97   0.53 TAP       SMLT 
  WDT   ???  IR      C      66.46   0.63 TAP       WDT  
  TWF1  ???  IR      D     101.55   0.75 TAP       TWF1 
  SSD   ???  IR      D     170.97   0.76 TAP       SSD  
  TWG   ???  IR      D     142.26   0.86 TAP       TWG  
  PNG   ???  IR      C     274.31   0.87 TAP       PNG  
  CHKT  ???  IR      D     116.76   0.89 TAP       CHKT 
  ECL   ???  IR      D     155.16   0.99 TAP       ECL  
  NSK   ???  IR      D      33.67   1.41 TAP       NSK  
  ENTT  ???  IR      C      40.48   1.49 TAP       ENTT 

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