benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 brok, 2004-07-13,  DWSK ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220320141,  NP,  TRM41249.00,  12378430,  NONE, 0.5374, 0.606, 30, 30
 brok, 2004-07-14,  DWSK ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220320141,  NP,  TRM41249.00,  12378430,  NONE, 0.5374, 0.606, 30, 30
 brok, 2006-07-28,  RGKA ,  USGS/Cascades Volcan,  TRIMBLE,  4625209651 ,  NETRS NP,  TRM41249.00,  60091058,  NONE, 0.5126, 0.5823, 15, 0
 brok, 2006-07-29,  RGKA ,  USGS/Cascades Volcan,  TRIMBLE,  4625209651 ,  NETRS NP,  TRM41249.00,  60091058,  NONE, 0.5126, 0.5823, 15, 0
 brok, 2012-07-20,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  0220320193 ,  5700 1.30,  TRM41249.00,  N/A,  NONE, 0.717, 0.7801, 15, 18570
 brok, 2012-07-21,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  0220320193 ,  5700 1.30,  TRM41249.00,  N/A,  NONE, 0.717, 0.7801, 15, 30
 brok, 2012-07-22,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  0220320193 ,  5700 1.30,  TRM41249.00,  N/A,  NONE, 0.717, 0.7801, 15, 30
 brok, 2018-07-25,  E. Montgomery-Brown ,  USGS/CalVO ,  JAVAD,  00600 ,  TRE_G3TH SIGMA3.6.7,  TRM41249.00,  60121200,  NONE, 0.4646, 0.5365, 15, 18245
 brok, 2018-07-26,  E. Montgomery-Brown ,  USGS/CalVO ,  JAVAD,  00600 ,  TRE_G3TH SIGMA3.6.7,  TRM41249.00,  60121200,  NONE, 0.4646, 0.5365, 15, 0
 brok, 2018-07-27,  E. Montgomery-Brown ,  USGS/CalVO ,  JAVAD,  00600 ,  TRE_G3TH SIGMA3.6.7,  TRM41249.00,  60121200,  NONE, 0.4646, 0.5365, 15, 0