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
  BRRC  H?Z  IR      C     298.82   0.35 RSNC      BRRC 
  BARC  S?Z  IR      D     147.40   0.41 RSNC      BARC 
  PAMC  S?Z  IR      D      60.18   0.80 RSNC      PAMC 
  RUSC  H?Z  IR      C     162.96   1.09 RSNC      RUSC 
  PTBC  H?Z  IR      C     249.36   1.12 RSNC      PTBC 
  OCAC  H?Z  IR      D       3.67   1.30 RSNC      OCAC 
  TAMC  H?Z  IR      D     107.21   1.68 RSNC      TAMC 
  NORC  H?Z  IR      C     226.96   2.00 RSNC      NORC 
  DBBC  S?Z  IR      C     271.80   2.79 RSNC      DBBC 
  SDV   B?Z  IR      D      54.61   3.36 RSNC      SDV  
  ORTC  H?Z  IR      C     211.47   3.52 RSNC      ORTC 
  URIC  H?Z  IR      C      16.28   4.93 RSNC      URIC 

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