benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 pclg, 2008-09-11,  ML ,  USGS/Cascades Volcan,  TRIMBLE 5700,  0220264600,  NP,  TRM41249.00,  60142391,  NONE, 0.7187, 0.7817, 15, 17220
 pclg, 2016-09-13,  SHERROD ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00454,  SIGMA3.6.6,  TRM41249.00,  60125132,  NONE, 0.9524, 1.0111, 15, 185445
 pclg, 2016-09-14,  SHERROD ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00454,  SIGMA3.6.6,  TRM41249.00,  60125132,  NONE, 0.9524, 1.0111, 15, 0