benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 cgdv, 2009-07-27,  BH ,  WWU ,  TRIMBLE 5700,  0220240424,  NP,  TRM39105.00,  00000000,  NONE, 0.617, 0, 15, 21240
 cgdv, 2009-07-28,  BH ,  WWU ,  TRIMBLE 5700,  0220240424,  NP,  TRM41249.00,  00000000,  NONE, 0.617, 0.6828, 15, 0
 cgdv, 2015-08-17,  KRAMER ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00497,  SIGMA3.6.2,  TRM41249.00,  60267811,  NONE, 0.6405, 0.7056, 15, 192045
 cgdv, 2015-08-18,  KRAMER ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00497,  SIGMA3.6.2,  TRM41249.00,  60267811,  NONE, 0.6405, 0.7056, 15, 0