benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 64hj, 1994-07-06,  unknown ,  NGS ,  TRIMBLE 4000SST,  458,  4.81,  TRM14532.00,  19,  NONE, 2.22, 0, 15, 163515
 64hj, 1994-07-08,  unknown ,  NGS ,  TRIMBLE 4000SST,  458,  4.81,  TRM14532.00,  19,  NONE, 2.22, 0, 15, 162445
 64hj, 2000-09-15,  WRT ,   ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16365,  NONE, 1.475, 1.5218, 30, 173330
 64hj, 2000-09-21,  CWW ,   ,  ASHTECH,  188 ,  Z-XII3 CD00,  ASH700936E_C,  CR16381,  NONE, 1.3701, 1.4178, 30, 16330
 64hj, 2004-09-16,  RWB ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.1914, 1.2409, 30, 15410
 64hj, 2004-09-22,  RWB ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.1104, 1.1609, 30, 153030
 64hj 64_HJH_3918_FEET_196, 2009-09-20,  CWW ,  USGS ,  ASHTECH,  04579 ,  Z-XII 1L001,  ASH701945B_M,  CR519993706,  NONE, 1.3511, 1.3989, 30, 15630