benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 blue Blue_Mt_1955_1981_NG, 1996-08-06,  KAS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 1.5081, 1.5546, 30, 153930
 blue Blue_Mt_1955_1981_NG, 1996-08-07,  CHS ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.4185, 1.4657, 30, 15540
 blue Blue_Mt_1955_1981_NG, 1996-09-06,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F00,  ASH700228D,  1036,  NONE, 1.379, 1.4266, 30, 17310
 blue Blue_Mt_1955_1981_NG, 1996-09-07,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F00,  ASH700228D,  1036,  NONE, 1.379, 1.4266, 30, 30
 blue Blue_Mt_1955_1981_NG, 1996-09-10,  JMS ,  USGS ,  ASHTECH,  143 ,  Z-XII3 1F00,  ASH700718B,  11401,  NONE, 1.3883, 1.4358, 30, 34530
 blue Blue_Mt_1955_1981_NG, 2002-08-16,  JLS ,  USGS ,  ASHTECH,  04582 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.1327, 1.1829, 30, 155830
 blue Blue_Mt_1955_1981_NG, 2002-08-17,  CHS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.3652, 1.4129, 30, 15430
 blue Blue_Mt_1955_1981_NG, 2004-08-20,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH700936D_M,  CR14244,  NONE, 0.5289, 0.5948, 30, 1640
 blue Blue_Mt_1955_1981_NG, 2004-08-22,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.3188, 1.3669, 30, 15420