benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 last, 2010-08-12,  BY and BP ,  USGS/Cascades Volcan,  TRIMBLE 4700,  220211200,  1.35,  TRM41249.00,  60261108,  NONE, 0.5634, 0.631, 15, 460
 last, 2010-08-13,  BY and BP ,  USGS/Cascades Volcan,  TRIMBLE 4700,  220211200,  1.35,  TRM41249.00,  60261108,  NONE, 0.5634, 0.631, 15, 30
 last, 2015-09-23,  MEYERS ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00483,  SIGMA3.6.2,  TRM41249.00,  60267811,  NONE, 0.71, 0.7732, 15, 223045
 last, 2015-09-24,  MEYERS ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00483,  SIGMA3.6.2,  TRM41249.00,  60267811,  NONE, 0.71, 0.7732, 0, 0