benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 dkbt, 2009-07-16,  BH ,  WWU ,  TRIMBLE 5700,  0220240424,  NP,  TRM39105.00,  00000000,  NONE, 0.541, 0, 15, 20210
 dkbt, 2009-07-17,  BH ,  WWU ,  TRIMBLE 5700,  0220240424,  NP,  TRM41249.00,  00000000,  NONE, 0.541, 0.6095, 15, 0
 dkbt, 2015-06-30,  KRAMER ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00334,  SIGMA3.6.2,  JAV_GRANT-G3T,  03627,  NON, 0.549, 0, 15, 0
 dkbt, 2015-07-01,  KRAMER ,  USGS/Cascades Volcan,  JAVAD TRE_G3TH,  00334,  SIGMA3.6.2,  JAV_GRANT-G3T,  03627,  NONE, 0.549, 0, 15, 0