benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 H112, 1995-09-19,  unknown ,  unknown ,  TRIMBLE 4000SE,  3467,  6.12,  TRM14532.00,  31,  NONE, 0.9657, 0, 30, 17030
 H112, 1995-09-20,  unknown ,  unknown ,  TRIMBLE 4000SE,  3449,  6.12,  TRM14532.00,  68496,  NONE, 1.1121, 0, 30, 164530
 h112, 1996-07-14,  JMS ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.2369, 1.2859, 30, 1630
 h112, 1996-07-15,  JLS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1F00,  ASH700228D,  1068,  NONE, 1.196, 1.2454, 30, 155330
 h112 HPGN_Cal_Sta10-12_19, 2000-08-25,  CHS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.358, 1.4058, 30, 152230
 h112 HPGN_Cal_Sta10-12_19, 2000-08-26,  JLS ,   ,  ASHTECH,  188 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.166, 1.2158, 30, 155730
 h112 HPGN_Cal_Sta10-12_19, 2004-05-22,  CHS ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945E_M,  CR520031615,  NONE, 1.2693, 1.3179, 30, 15160
 h112 HPGN_Cal_Sta10-12_19, 2004-05-23,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945B_M,  CR519993702,  NONE, 1.1823, 1.2319, 30, 1610