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
  NEM   ???  IR      D     354.23   0.59 ISS       NEM  
  SAP   ???  IR      D     277.09   3.20 ISS       SAP  
  MRK   ???  IR      C     229.63   4.56 ISS       MRK  
  YSS   ???  IR      C     334.78   4.69 ISS       YSS  
  MTJ   ???  IR      D     215.21   7.81 ISS       MTJ  
  MAT   ???  IR      C     225.37   8.45 ISS       MAT  
  RES   ???  IR      C      16.17  56.24 ISS       RES  
  LAH   ???  IR      C     283.81  56.40 ISS       LAH  
  KIR   S?Z  IR      C     339.52  62.33 ISC       KIR  
  KIR   ???  IR      C     339.52  62.33 ISS       KIR  
  CTA   ???  IR      D     179.38  62.52 ISS       CTA  
  UPP   S?Z  IR      C     334.84  69.22 ISC       UPP  
  UPP   ???  IR      C     334.84  69.22 ISS       UPP  
  OTT   ???  IR      D      27.89  84.81 ISS       OTT  
  HLW   ???  IR      D     307.48  85.91 ISS       HLW  

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