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
  OVCH  ???  IR      d      18.43   0.45 NEIC      OVCH 
  OVCH  ??Z  IR      D      18.43   0.45 GUC       OVCH 
  CHNG  S?Z  IR      C     187.69   0.85 GUC       CHNG 
  TLL   ???  IR      d      29.35   0.99 NEIC      TLL  
  TLL   B?Z  IR      D      29.35   0.99 GUC       TLL  
  LSCH  ???  IR      d       5.33   1.13 NEIC      LSCH 
  LSCH  ??Z  IR      D       5.33   1.13 GUC       LSCH 
  ROCH  ???  IR      d     171.22   1.95 NEIC      ROCH 
  ROCH  S?Z  IR      D     171.22   1.95 GUC       ROCH 
  DOCA  BHZ  ZL  --  +   a  88.07   1.96 ISC       DOCA 
  IHA   ???  IR      d     186.65   2.00 NEIC      IHA  
  IHA   S?Z  IR      D     186.65   2.00 GUC       IHA  
  LCO   HHZ  IU  --  +   a  16.12   2.10 ISC       LCO  
  LCO   BHZ  IU  --  +   a  16.12   2.10 ISC       LCO  
  PEL   B?Z  IR      C     164.81   2.18 GUC       PEL  
  PEL   BHZ   G  --  -   a 164.59   2.18 ISC       PEL  
  LCCH  ???  IR      c     184.01   2.44 NEIC      LCCH 
  LCCH  S?Z  IR      C     184.01   2.44 GUC       LCCH 
  CLCH  B?Z  IR      D     163.60   2.46 GUC       CLCH 
  FCH   B?Z  IR      D     158.53   2.46 GUC       FCH  
  LAJA  BHZ  ZL  --  +   a  97.47   2.49 ISC       RTLL 
  VACH  ???  IR      c      12.29   2.51 NEIC      VACH 
  VACH  S?Z  IR      C      12.29   2.51 GUC       VACH 
  TACH  ???  IR      c     172.21   2.63 NEIC      TACH 
  TACH  S?Z  IR      C     172.21   2.63 GUC       TACH 
  PCH   ???  IR      c     164.59   2.68 NEIC      PCH  
  PCH   S?Z  IR      C     164.59   2.68 GUC       PCH  
  CACH  ???  IR      d     168.32   3.14 NEIC      CACH 
  CACH  S?Z  IR      D     168.32   3.14 GUC       CACH 
  CATA  BHZ  ZL  --  +   a 110.20   3.77 ISC       ACAN 
  LLAN  BHZ  ZL  --  +   a  82.52   4.21 ISC       APLL 
  LNCH  ???  IR      d     182.29   4.80 NEIC      LNCH 
  LNCH  S?Z  IR      D     182.29   4.80 GUC       LNCH 
  ESP08 BHZ  XH  01  +   a  97.24   5.86 ISC       BOS  

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