benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 mh13, 2010-09-29,  BP and RL ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316023,  2.01,  TRM41249.00,  60267788,  NONE, 0.6173, 0.6831, 15, 211730
 mh13, 2010-09-30,  BP and RL ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316023,  2.01,  TRM41249.00,  60267788,  NONE, 0.6173, 0.6831, 15, 30
 mh13, 2010-10-01,  BP and RL ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316023,  2.01,  TRM41249.00,  60267788,  NONE, 0.6173, 0.6831, 15, 30
 mh13, 2010-10-02,  BP and RL ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316023,  2.01,  TRM41249.00,  60267788,  NONE, 0.6173, 0.6831, 15, 30
 mh13, 2010-10-03,  BP and RL ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316023,  2.01,  TRM41249.00,  60267788,  NONE, 0.6173, 0.6831, 15, 30
 mh13, 2010-10-04,  BP and RL ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316023,  2.01,  TRM41249.00,  60267788,  NONE, 0.6173, 0.6831, 15, 30
 mh13, 2010-10-05,  BP and RL ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220316023,  2.01,  TRM41249.00,  60267788,  NONE, 0.6173, 0.6831, 15, 30
 mh13, 2015-07-29,  MEYERS ,  USGS/Cascades Volcan,  JAVAD,  00483 ,  TRE_G3TH SIGMA3.6.2,  TRM57971.00,  1441009066,  NONE, 0.3854, 0.4621, 15, 0
 mh13, 2015-07-30,  MEYERS ,  USGS/Cascades Volcan,  JAVAD,  00483 ,  TRE_G3TH SIGMA3.6.2,  TRM57971.00,  1441009066,  NONE, 0.3854, 0.4621, 15, 0
 mh13, 2015-07-31,  MEYERS ,  USGS/Cascades Volcan,  JAVAD,  00483 ,  TRE_G3TH SIGMA3.6.2,  TRM57971.00,  1441009066,  NONE, 0.3854, 0.4621, 15, 14645
 mh13, 2015-08-01,  MEYERS ,  USGS/Cascades Volcan,  JAVAD,  00483 ,  TRE_G3TH SIGMA3.6.2,  TRM57971.00,  1441009066,  NONE, 0.3854, 0.4621, 15, 0