benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 gp06 GP_06502-1_1986_NGS, 1997-08-20,  unknown ,  CVO ,  Trimble 4000SSi,  16417,  NP,  TRM29659.00,  66919,  NONE, 1.259, 0, 30, 135830
 gp06 GP_06502-1_1986_NGS, 1997-08-21,  unknown ,  CVO ,  Trimble 4000SSi,  16417,  NP,  TRM29659.00,  69917,  NONE, 1.2509, 0, 30, 13510
 gp06 GP_06502-1_1986_NGS, 1998-10-28,  unknown ,  CVO ,  Trimble 4000SSi,  16418,  NP,  TRM29659.00,  66596,  NONE, 1.4327, 0, 30, 16530
 gp06 GP_06502-1_1986_NGS, 1998-10-29,  unknown ,  CVO ,  Trimble 4000SSi,  16418,  NP,  TRM29659.00,  66596,  NONE, 1.4266, 0, 30, 201030
 gp06 GP_06502-1_1986_NGS, 1998-10-30,  unknown ,  CVO ,  Trimble 4000SSi,  16418,  NP,  TRM29659.00,  66596,  NONE, 1.474, 0, 30, 16030
 gp06 GP_06502-1_1986_NGS, 2008-06-20,  ST ,  USGS/Cascades Volcan,  TRIMBLE 4700,  220214232,  NP,  TRM41249.00,  60142391,  NONE, 1.4679, 1.5217, 30, 164130
 gp06 GP_06502-1_1986_NGS, 2008-06-23,  ST ,  USGS/Cascades Volcan,  TRIMBLE 4700,  220214232,  NP,  TRM41249.00,  60142391,  NONE, 1.4712, 1.525, 30, 1630
 gp06 GP_06502-1_1986_NGS, 1994-08-18,  MHM ,  USGS ,  ASHTECH,  283 ,  Z-XII3 1C01,  ASH700228A,  134,  NONE, 1.2865, 1.3349, 30, 15830
 gp06 GP_06502-1_1986_NGS, 2007-03-28,  EYI ,  USGS/Cascades Volcan,  TRIMBLE,  0220316023 ,  5700 NP,  TRM41249.00,  12354066,  NONE, 1.3684, 1.4229, 15, 142530
 gp06 GP_06502-1_1986_NGS, 2007-04-05,  EYI ,  USGS/Cascades Volcan,  TRIMBLE,  0220316023 ,  5700 NP,  TRM41249.00,  12354066,  NONE, 1.3886, 1.443, 15, 142830