benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hu91, 1993-10-17,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SSE,  3327A03459,  NP,  TRM14532.00,  2952A00029,  NONE, 1.0928, 0, 30, 165530
 hu91, 1994-10-23,  -Unknown- ,  -Unknown- ,  TRIMBLE 4000SSE,  3972,  NP,  TRM22020.00+GP,  6255,  NONE, 0.8339, 0, 30, 17030
 hu91, 1995-10-14,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SSE,  3442A08406,  NP,  TRM22020.00+GP,  0220021405,  NONE, 1.2442, 0, 30, 0
 hu91, 1996-09-01,  Wernick Brian/Brady,  UNKNOWN ,  TRIMBLE 4000SSE,  3526A11443,  NP,  TRM22020.00+GP,  384?A24859,  NONE, 0.9872, 0, 30, 0
 hu91, 2002-09-25,  Davis/Moser ,  SAO/Caltech ,  TRIMBLE 4000SSI,  3616A15412,  NP,  TRM22020.00+GP,  0220126940,  NONE, 1.0843, 0, 30, 30