benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 mike Mike_1982_USGS, 1998-07-21,  RCB ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CB00,  ASH700936D_M,  CR14330,  NONE, 1.4322, 1.4793, 30, 165830
 mike Mike_1982_USGS, 1998-07-22,  SJ. ,  USGS ,  ASHTECH,  203 ,  Z-XII3 1F50,  ASH700936E_C,  CR16364,  NONE, 1.257, 1.3057, 30, 15330
 mike Mike_1982_USGS, 1999-07-20,  JLS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992803,  NONE, 1.1579, 1.2078, 30, 153430
 mike Mike_1982_USGS, 1999-07-21,  CHS ,   ,  ASHTECH,  O4591 ,  Z-XII3 CC00,  ASH700936D_M,  CR14333,  NONE, 1.5103, 1.5568, 30, 153830
 mike Mike_1982_USGS, 2002-07-10,  JLS ,  USGS ,  ASHTECH,  LP03192 ,  Z-XII3 CD00,  ASH700936E_C,  CR16376,  NONE, 1.1509, 1.2009, 30, 15530
 mike Mike_1982_USGS, 2002-07-11,  CWA ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.158, 1.2079, 30, 17210