benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 mile Mile_1959_USGS, 1993-10-18,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SST,  2931A00285,  NP,  TRM14532.00,  2952A00032,  NONE, 1.4522, 0, 30, 175030
 mile Mile_1959_USGS, 1993-10-19,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SST,  2931A00285,  NP,  TRM14532.00,  2952A00032,  NONE, 1.4522, 0, 30, 0
 mile Mile_1959_USGS, 1994-10-21,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SSE,  3327A03454,  NP,  TRM22020.00+GP,  0080049770,  NONE, 1.4216, 0, 30, 1690
 mile Mile_1959_USGS, 1995-10-14,  UNKNOWN ,  UNKNOWN ,  TRIMBLE 4000SSE,  3526A11458,  NP,  TRM22020.00+GP,  0220024657,  NONE, 1.0976, 0, 30, 0
 mile Mile_1959_USGS, 1996-08-31,  Stirewalt/Abolins ,  UNKNOWN ,  TRIMBLE 4000SSE,  3526A11458,  NP,  TRM22020.00+GP,  0220024657,  NONE, 1.231, 0, 30, 14440
 mile Mile_1959_USGS, 1996-09-01,  Stirewalt/Abolins ,  UNKNOWN ,  TRIMBLE 4000SSE,  3526A11458,  NP,  TRM22020.00+GP,  0220024657,  NONE, 1.231, 0, 30, 0
 mile Mile_1959_USGS, 2002-09-25,  Wernicke Cooksey ,  US Geological Survey,  TRIMBLE 4000SSI,  4005A27617,  NP,  TRM22020.00+GP,  051636,  NONE, 1.2111, 0, 30, 2730
 mile Mile_1959_USGS, 1993-05-02,  CHS ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 6M24,  ASH700228D,  1068,  NONE, 1.2885, 1.3369, 30, 4730
 mile Mile_1959_USGS, 1993-05-03,  CHS ,  USGS ,  ASHTECH,  0831 ,  LM-XII3 6M24,  ASH700228A,  1027,  NONE, 1.2996, 1.3479, 30, 0
 mile Mile_1959_USGS, 1993-05-04,  CHS ,  USGS ,  ASHTECH,  0831 ,  LM-XII3 6M24,  ASH700228A,  1027,  NONE, 1.2996, 1.3479, 30, 3030
 mile Mile_1959_USGS, 1993-05-05,  CHS ,  USGS ,  ASHTECH,  0831 ,  LM-XII3 6M24,  ASH700228A,  1027,  NONE, 1.2996, 1.3479, 30, 3030
 mile Mile_1959_USGS, 1993-05-06,  CHS ,  USGS ,  ASHTECH,  0831 ,  LM-XII3 6M24,  ASH700228A,  1027,  NONE, 1.2996, 1.3479, 30, 3030
 mile Mile_1959_USGS, 1998-06-02,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 110
 mile Mile_1959_USGS, 1998-06-03,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 30
 mile Mile_1959_USGS, 1998-06-04,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 30
 mile Mile_1959_USGS, 1998-06-05,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 30
 mile Mile_1959_USGS, 1998-06-06,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 30
 mile Mile_1959_USGS, 1998-06-07,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 30
 mile Mile_1959_USGS, 1998-06-08,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 30
 mile Mile_1959_USGS, 1998-06-09,  CHS ,  USGS ,  ASHTECH,  475 ,  Z-XII3 1E95,  ASH700936D_M,  *075,  NONE, 1.2975, 1.3458, 30, 30
 mile Mile_1959_USGS, 2003-06-10,  JMS ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.3097, 1.3579, 30, 10
 mile Mile_1959_USGS, 2003-06-11,  JMS ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.3097, 1.3579, 30, 10