benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sobe South_Bend_1990, 1993-08-17,  EYI ,  USGS-CVO ,  ASHTECH LM-XII3,  004,  7A26,  ASH700228D,  004,  NONE, 1.3644, 1.4121, 15, 203115
 sobe South_Bend_1990, 1993-08-18,  EYI ,  USGS-CVO ,  ASHTECH LM-XII3,  004,  7A,  ASH700228D,  004,  NONE, 1.4241, 1.4713, 15, 203115
 sobe South_Bend_1990, 1996-06-10,  unknown ,  CVO ,  Trimble 4000SSi,  14798,  NP,  TRM29659.00,  61148,  NONE, 1.4036, 0, 30, 125330
 sobe South_Bend_1990, 1996-06-11,  unknown ,  CVO ,  Trimble 4000SSi,  14798,  NP,  TRM29659.00,  61148,  NONE, 1.4116, 0, 30, 12480
 sobe South_Bend_1990, 1996-06-12,  unknown ,  CVO ,  Trimble 4000SSi,  14798,  NP,  TRM29659.00,  61148,  NONE, 1.4076, 0, 30, 12510
 sobe South_Bend_1990, 1996-06-13,  unknown ,  CVO ,  Trimble 4000SSi,  14798,  NP,  TRM29659.00,  61148,  NONE, 1.417, 0, 30, 124430
 sobe South_Bend_1990, 1996-06-14,  unknown ,  CVO ,  Trimble 4000SSi,  14798,  NP,  TRM29659.00,  61148,  NONE, 1.4008, 0, 30, 123930
 sobe South_Bend_1990, 1996-06-15,  unknown ,  CVO ,  Trimble 4000SSi,  14798,  NP,  TRM29659.00,  61148,  NONE, 1.3765, 0, 30, 124530
 sobe South_Bend_1990, 2003-08-20,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945B_M,  CR519993702,  NONE, 1.3056, 1.3539, 30, 17140
 sobe South_Bend_1990, 2003-08-22,  JMS ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.4156, 1.4629, 30, 16180