benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sark, 2009-09-10,  A. Calvert ,  USGS/Cascades Volcan,  TRIMBLE 4700,  220211182,  1.35,  TRM41249.00,  60250754,  NONE, 0.8853, 0.945, 30, 200