benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 mack, 1997-08-13,  unknown ,  CVO ,  Trimble 4000SSi,  16417,  NP,  TRM29659.00,  66917,  NONE, 1.3085, 0, 30, 13440
 mack, 1997-08-14,  unknown ,  CVO ,  Trimble 4000SSi,  16417,  NP,  TRM29659.00,  66917,  NONE, 1.3499, 0, 30, 13390
 mack, 1998-08-26,  MARTY D GLASS ,  YAMHILL COUNTY SURVE,  TRIMBLE 4000SSI,  3515A10527,  Nav,  TRM22020.00+GP,  0220017620,  NONE, 1.572, 0, 15, 14370
 mack, 1998-08-27,  MARTY D GLASS ,  YAMHILL COUNTY SURVE,  TRIMBLE 4000SSI,  3515A10527,  Nav,  TRM22020.00+GP,  0220017620,  NONE, 1.5578, 0, 15, 183045
 mack, 1998-08-28,  MARTY D GLASS ,  YAMHILL COUNTY SURVE,  TRIMBLE 4000SSI,  3515A10527,  Nav,  TRM22020.00+GP,  0220017620,  NONE, 1.5589, 0, 15, 143415
 mack, 1998-09-22,  JUSTIN DAHLBERG ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  4869,  Nav,  TRM22020.00+GP,  76725,  NONE, 2, 0, 15, 13015