benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 arns Arnica_Sink_1999_stmp, 1999-07-28,  UC BERKELEY ,   ,  TRIMBLE 4000SSI,  14594,  7.29,  TRM29659.00,  89288,  NONE, 1.5274, 0, 30, 18930
 arns Arnica_Sink_1999_stmp, 1999-07-29,  UC BERKELEY ,   ,  TRIMBLE 4000SSI,  14594,  7.29,  TRM29659.00,  89288,  NONE, 1.5335, 0, 30, 17390
 arns Arnica_Sink_1999_stmp, 2004-07-09,  DZSS ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220277280,  NP,  TRM41249.00,  12299551,  NONE, 1.1901, 1.2461, 30, 18645
 arns Arnica_Sink_1999_stmp, 2004-07-10,  DZSS ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220277280,  NP,  TRM41249.00,  12299551,  NONE, 1.1469, 1.2033, 30, 132130
 arns Arnica_Sink_1999_stm, 2012-07-14,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  0220292018 ,  5700 1.20,  TRM41249.00,  60054886,  NONE, 0.5873, 0.6541, 15, 30
 arns Arnica_Sink_1999_stm, 2012-07-15,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  0220292018 ,  5700 1.20,  TRM41249.00,  60054886,  NONE, 0.5873, 0.6541, 15, 30
 arns Arnica_Sink_1999_stm, 2012-07-16,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  0220292018 ,  5700 1.20,  TRM41249.00,  60054886,  NONE, 0.5873, 0.6541, 15, 30