benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 cl01, 2009-08-08,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  220211200 ,  4700 NP,  TRM41249.00,  60261108,  NONE, 0.6204, 0.6861, 15, 5230
 cl01, 2009-08-09,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE,  220211200 ,  4700 NP,  TRM41249.00,  60261108,  NONE, 0.6204, 0.6861, 15, 30