benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 iron, 2008-09-11,  ACalvertTSisson ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220320193,  NP,  TRM41249.00,  60052133,  NONE, 1.045, 1.1025, 15, 3215
 iron, 2016-09-12,  SHERROD ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00594,  SIGMA3.6.6,  TRM41249.00,  60121200,  NONE, 0.5939, 0.6604, 15, 211230
 iron, 2016-09-13,  SHERROD ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00594,  SIGMA3.6.6,  TRM41249.00,  60121200,  NONE, 0.5939, 0.6604, 15, 0
 iron, 2016-09-14,  SHERROD ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00594,  SIGMA3.6.6,  TRM41249.00,  60121200,  NONE, 0.5939, 0.6604, 15, 0