benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 X552, 2010-07-13,  G.Funning/D.Swann ,  University of Califo,  TRIMBLE R7,  0220413516,  NP,  TRM41249.00,  60233388,  NONE, 0.5, 0.5702, 30, 175630
 X552, 2014-07-04,  M.Floyd/N.Senobari ,  MIT/University of Ca,  TRIMBLE 5700,  0220273264,  NP,  TRM41249.00,  12337743,  NONE, 0.5, 0.5702, 30, 193330
 X552, 2014-08-25,  Floyd/Johnson/Boyd ,  MIT/University of Ca,  TRIMBLE 5700,  0220274288,  NP,  TRM41249.00,  12337961,  NONE, 0.5, 0.5702, 30, 4330
 X552, 2015-01-30,  G.Funning/K.Materna ,  U.C. Riverside / U.C,  TRIMBLE R7,  0220413532,  NP,  TRM57971.00,  1441036085,  NONE, 0.129, 0.2427, 30, 224230