benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sis3 Sisson_2_No_3_1927_US, 1993-08-18,  KWC ,  USGS ,  ASHTECH LM-XII3,  0831,  7A,  ASH700228A,  1027,  NONE, 1.1839, 1.2335, 30, 21270
 sis3 Sisson_2_No_3_1927_U, 1992-05-07,  GDH ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 6A,  ASH700228D,  1068,  NONE, 1.2443, 1.2932, 30, 1380
 sis3 Sisson_2_No_3_1927_U, 1992-05-08,  KWC ,  USGS ,  ASHTECH,  0831 ,  LM-XII3 5F,  ASH700228A,  0616,  NONE, 1.2141, 1.2633, 30, 5830
 sis3 Sisson_2_No_3_1927_U, 1992-06-12,  KWC ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 7A24,  ASH700228D,  1068,  NONE, 1.1607, 1.2105, 30, 120
 sis3 Sisson_2_No_3_1927_U, 1994-08-22,  GDH ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A,  ASH700228A,  0745,  NONE, 1.1386, 1.1887, 30, 21530
 sis3 Sisson_2_No_3_1927_U, 1994-09-14,  KWC ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.191, 1.2405, 30, 155030
 sis3 Sisson_2_No_3_1927_U, 2001-07-17,  CHS ,   ,  ASHTECH,  O4582 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.1569, 1.2068, 30, 154230
 sis3 Sisson_2_No_3_1927_U, 2001-07-18,  GDH ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.2136, 1.2628, 30, 153530
 sis3 Sisson_2_No_3_1927_U, 2004-07-24,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945E_M,  CR620022602,  NONE, 1.1631, 1.2129, 30, 15500