benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 tb19 Table_1919_USC&GS, 1993-08-18,  KWC ,  USGS ,  ASHTECH LM-XII3,  765,  7A26,  ASH700228D,  1058,  NONE, 1.4764, 1.5232, 30, 201930
 tb19 Table_1919_USC&GS, 1994-09-15,  KWC ,  USGS ,  ASHTECH LM-XII3,  764,  7A,  ASH700228A,  0598,  NONE, 1.3207, 1.3688, 30, 3410
 tb19 Table_1919_USC&GS, 1992-05-06,  CHS ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 6A,  ASH700228D,  1068,  NONE, 1.5658, 1.6119, 30, 160
 tb19 Table_1919_USC&GS, 1992-05-08,  CHS ,  USGS ,  ASHTECH,  107 ,  LM-XII3 6A,  ASH700228D,  *031,  NONE, 1.606, 1.6518, 30, 2630
 tb19 Table_1919_USC&GS, 1992-06-11,  KWC ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A24,  ASH700228A,  0745,  NONE, 1.397, 1.4444, 30, 211130
 tb19 Table_1919_USC&GS, 1994-04-30,  MHM ,  USGS ,  ASHTECH,  827 ,  Z-XII3 1C01,  ASH700228A,  *104,  NONE, 1.2151, 1.2643, 30, 15230
 tb19 Table_1919_USC&GS, 1994-08-23,  KWC ,  USGS ,  ASHTECH,  831 ,  LM-XII3 7A,  ASH700228A,  1027,  NONE, 1.3338, 1.3818, 30, 165730
 tb19 Table_1919_USC&GS, 1994-09-14,  KWC ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 1.3207, 1.3688, 30, 3410