benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 b387 B_387_1955_USC&GS, 1994-07-08,  KMH ,  USGS ,  ASHTECH LM-XII3,  99,  7A,  ASH700228D,  1036,  NONE, 0.4838, 0.5522, 30, 1600
 b387 B_387_1955_USC&GS, 1994-07-09,  KMH ,  USGS ,  ASHTECH LM-XII3,  344,  7X,  ASH700228A,  0175,  NONE, 0.4817, 0.5502, 30, 15210
 b387 B_387_1955_USC&GS, 2000-08-20,  GDH ,   ,  ASHTECH Z-XII3,  lp019992803,  CD00,  ASH701945B_M,  CR519993702,  NONE, 1.253, 1.3018, 30, 154530
 b387 B_387_1955_USC&GS, 2000-08-21,  CHS ,   ,  ASHTECH Z-XII3,  4600,  CD00,  ASH701945.02B,  CR619992805,  NONE, 1.3409, 1.3888, 30, 153230
 b387 B_387_1955_USC&GS, 2004-05-12,  GDH ,  USGS ,  ASHTECH Z-X,  ZE120033802,  ZE00,  ASH701945B_M,  CR519993706,  NONE, 1.4963, 1.5429, 30, 155830
 b387 B_387_1955_USC&GS, 2004-05-13,  CHS ,  USGS ,  ASHTECH Z-X,  ZE120023202,  ZE00,  ASH701945E_M,  CR520031615,  NONE, 1.2288, 1.2778, 30, 153630