benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 i019 I019_stamped_F612_194, 1995-04-13,  -Unknown- ,  CALIF DEPT TRANSPORT,  TRIMBLE 4000,  1502,  SSE,  TRM14532.00,  SN_UNKNOWN,  NONE, 2.217, 0, 15, 154230
 i019 I019_stamped_F612_194, 1995-04-17,  -Unknown- ,  CALIF DEPT TRANSPORT,  TRIMBLE 4000,  1502,  SSE,  TRM14532.00,  SN_UNKNOWN,  NONE, 2.217, 0, 15, 152745
 i019 I019_stamped_F612_194, 2003-04-28,  SJB ,  SCRIPPS INSTITUTION ,  ASHTECH Z-XII3,  312,  CC00,  ASH700936A_M,  636,  NONE, 0.8705, 0, 30, 163430
 i019 I019_stamped_F612_19, 2010-04-07,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 1.1783, 1.2279, 15, 151745
 i019 I019_stamped_F612_19, 2010-04-11,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 1.2076, 1.2569, 15, 153315