benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 blla, 2000-07-06,  SEO ,  USC ,  ASHTECH Z-XII3,  192,  CD00,  ASH700936E_C,  381,  NONE, 0.4834, 0.5519, 30, 30
 blla, 2010-07-15,  JMS ,  USGS ,  TRIMBLE,  0220316049 ,  5700 NP,  TRM41249.00,  60074027,  NONE, 0.5437, 0.6121, 15, 30
 blla, 2010-07-16,  JMS ,  USGS ,  TRIMBLE,  0220316049 ,  5700 NP,  TRM41249.00,  60074027,  NONE, 0.5437, 0.6121, 15, 30
 blla, 2012-07-10,  CalVO ,  USGS ,  TRIMBLE,  0220316024 ,  5700 2.01,  TRM41249.00,  60194628,  NONE, 0.5904, 0.6571, 15, 175615
 blla, 2012-07-11,  CalVO ,  USGS ,  TRIMBLE,  0220316024 ,  5700 2.01,  TRM41249.00,  60194628,  NONE, 0.5904, 0.6571, 15, 30
 blla, 2012-07-12,  CalVO ,  USGS ,  TRIMBLE,  0220316024 ,  5700 2.01,  TRM41249.00,  60194628,  NONE, 0.5904, 0.6571, 15, 30