benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 snsp, 2009-09-09,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220263478,  NP,  TRM41249.00,  60052133,  NONE, 0.5619, 0.6296, 30, 30
 snsp, 2009-09-10,  M. Lisowski ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220263478,  NP,  TRM41249.00,  60052133,  NONE, 0.5619, 0.6296, 30, 30
 snsp, 2016-09-11,  SHERROD ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00594,  SIGMA3.6.6,  TRM41249.00,  60121200,  NONE, 0.5935, 0.6601, 15, 130