benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 spbu, 2002-08-19,  MP ,  USGS ,  TRIMBLE 4000SSI,  16417,  Nav,  TRM29659.00,  00062086,  NONE, 1.3025, 0, 30, 163330
 SPBU, 2002-08-20,  MP ,  USGS ,  TRIMBLE 4000SSI,  16417,  Nav,  TRM29659.00,  00062086,  NONE, 1.3025, 0, 30, 30
 spbu, 2002-08-21,  MP ,  USGS ,  TRIMBLE 4000SSI,  16417,  Nav,  TRM29659.00,  00062086,  NONE, 1.3025, 0, 30, 30
 spbu, 2009-08-25,  P. Neff ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220263478,  NP,  TRM41249.00,  60052133,  NONE, 0.4015, 0.4771, 5, 165850
 spbu, 2009-08-26,  P. Neff ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220263478,  NP,  TRM41249.00,  60052133,  NONE, 0.4015, 0.4771, 5, 20
 spbu, 2009-08-27,  P. Neff ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220263478,  NP,  TRM41249.00,  60052133,  NONE, 0.4015, 0.4771, 5, 20
 spbu, 2016-08-02,  R. Kramer ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00454,  SIGMA3.6.6,  TRM57971.00,  1441009066,  NONE, 1.0192, 1.077, 15, 24345
 spbu, 2016-08-03,  R. Kramer ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00454,  SIGMA3.6.6,  TRM57971.00,  1441009066,  NONE, 1.0192, 1.077, 15, 0