benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 a545, 1997-08-20,  unknown ,  CVO ,  Trimble 4000SSi,  16291,  NP,  TRM29659.00,  66915,  NONE, 1.3212, 0, 30, 133430
 a545, 1997-08-21,  unknown ,  CVO ,  Trimble 4000SSi,  16291,  NP,  TRM29659.00,  66915,  NONE, 1.3106, 0, 30, 13380
 a545, 1998-08-28,  JUSTIN DAHLBERG ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  4869,  Nav,  TRM22020.00+GP,  76725,  NONE, 2, 0, 15, 144015
 a545, 1998-08-31,  JUSTIN DAHLBERG ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  4869,  Nav,  TRM22020.00+GP,  76725,  NONE, 2, 0, 15, 182315
 a545, 1998-09-01,  JUSTIN DAHLBERG ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  4869,  Nav,  TRM22020.00+GP,  76725,  NONE, 2, 0, 15, 142415
 a545 B.M.No.A545_StateHwyD, 2011-07-31,  McCaffrey ,  PSU ,  TRIMBLE NETR8,  4931K62908,  4.41,  TRM57971.00,  1441004548,  NONE, 1.089, 1.146, 0, 13730
 a545 B.M.No.A545_StateHwyD, 2011-08-01,  McCaffrey ,  PSU ,  TRIMBLE NETR8,  4931K62908,  4.41,  TRM57971.00,  1441004548,  NONE, 1.089, 1.146, 0, 0
 a545 B.M.No.A545_StateHwyD, 2011-08-02,  McCaffrey ,  PSU ,  TRIMBLE NETR8,  4931K62908,  4.41,  TRM57971.00,  1441004548,  NONE, 1.089, 1.146, 0, 0
 a545 B.M.No.A545_StateHwyD, 2011-08-03,  McCaffrey ,  PSU ,  TRIMBLE NETR8,  4931K62908,  4.41,  TRM57971.00,  1441004548,  NONE, 1.089, 1.146, 0, 0
 a545 B.M.No.A545_StateHwy, 2003-11-04,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945B_M,  CR619992801,  NONE, 1.2268, 1.2759, 30, 16580