benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 wtrv, 2010-08-10,  ML ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316024,  2.01,  TRM41249.00,  60142391,  NONE, 0.476, 0.5473, 15, 203130
 wtrv, 2010-08-11,  ML ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316024,  2.01,  TRM41249.00,  60142391,  NONE, 0.476, 0.5473, 15, 30
 wtrv, 2010-08-12,  ML ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316024,  2.01,  TRM41249.00,  60142391,  NONE, 0.476, 0.5473, 15, 30