benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 a074, 1998-09-03,  DAVID L NOCK ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  7286,  Nav,  TRM22020.00+GP,  115395,  NONE, 2, 0, 15, 181315
 a074, 1998-09-04,  DAVID L NOCK ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  7286,  Nav,  TRM22020.00+GP,  115395,  NONE, 2, 0, 15, 141215
 a074, 1998-09-08,  DAVID L NOCK ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  7286,  Nav,  TRM22020.00+GP,  115395,  NONE, 2, 0, 15, 175115
 a074, 2016-08-02,  R. Till ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00483,  SIGMA3.6.6,  TRM41249.00,  12097484,  NONE, 1.1719, 1.228, 15, 12145
 a074, 2016-08-03,  R. Till ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00483,  SIGMA3.6.6,  TRM41249.00,  12097484,  NONE, 1.1719, 1.228, 15, 0
 a074, 2002-08-26,  ML KL ,  USGS ,  TRIMBLE,  14804 ,  4000SSI Nav,  TRM29659.00,  00066915,  NONE, 1.2328, 0, 30, 155230
 a074, 2002-08-27,  Ordway ,  USGS ,  TRIMBLE,  14804 ,  4000SSI Nav,  TRM29659.00,  00066915,  NONE, 1.0859, 0, 30, 16130
 a074, 2009-08-26,  B. Pauk ,  USGS/Cascades Volcan,  TRIMBLE,  220211182 ,  4700 NP,  TRM41249.00,  60111426,  NONE, 1.1436, 1.2, 30, 15350