benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sand, 1993-10-16,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SST,  2949A00423,  NP,  TRM14532.00,  3006A00028,  NONE, 1.2038, 0, 30, 16400
 sand, 1994-10-22,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SSE,  3414A05687,  NP,  TRM22020.00+GP,  0080070458,  NONE, 1.2706, 0, 30, 161130
 sand, 1995-10-14,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SSE,  3443A08498,  NP,  TRM14532.00,  3004A00041,  NONE, 1.2014, 0, 30, 0
 sand, 2002-09-25,  Bennett/Hogan ,  UNKNOWN ,  TRIMBLE 4000SSI,  4005A27619,  NP,  TRM22020.00+GP,  0220051647,  NONE, 1.234, 0, 30, 30