benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ml72 Mills_1972_Ca_Dept_Hw, 1993-07-12,  WKG ,  USGS ,  ASHTECH LM-XII3,  765,  7A26,  ASH700228D,  1058,  NONE, 1.2724, 1.321, 30, 231730
 ml72 Mills_1972_Ca_Dept_H, 1992-08-16,  GDH ,  USGS ,  ASHTECH,  107 ,  LM-XII3 7A,  ASH700228D,  *031,  NONE, 1.1537, 1.2037, 30, 185530
 ml72 Mills_1972_Ca_Dept_H, 1994-07-28,  CHS ,  USGS ,  ASHTECH,  831 ,  LM-XII3 7A,  ASH700228A,  1027,  NONE, 1.193, 1.2424, 30, 13580
 ml72 Mills_1972_Ca_Dept_H, 1998-07-25,  GDH ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F50,  ASH700936E_C,  CR16379,  NONE, 1.1872, 1.2367, 30, 15360
 ml72 Mills_1972_Ca_Dept_H, 1998-07-26,  CHS ,  USGS ,  ASHTECH,  175 ,  Z-XII3 1F50,  ASH700936E_C,  CR16365,  NONE, 1.2641, 1.3128, 30, 15430
 ml72 Mills_1972_Ca_Dept_H, 1999-07-26,  GDH ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992805,  NONE, 1.2115, 1.2607, 30, 165230
 ml72 Mills_1972_Ca_Dept_H, 1999-07-27,  CHS ,   ,  ASHTECH,  O4591 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.2712, 1.3198, 30, 155430
 ml72 Mills_1972_Ca_Dept_H, 2002-07-17,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.1793, 1.2289, 30, 15580
 ml72 Mills_1972_Ca_Dept_H, 2002-07-19,  BDK ,  USGS ,  ASHTECH,  LP03192 ,  Z-XII3 CD00,  ASH700936E_C,  CR16376,  NONE, 1.155, 1.2049, 30, 15110
 ml72 Mills_1972_Ca_Dept_H, 2005-07-30,  JOL ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.2228, 1.2719, 30, 163230
 ml72 Mills_1972_Ca_Dept_H, 2005-09-28,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 1.1772, 1.2269, 30, 154430
 ml72 Mills_1972_Ca_Dept_H, 2007-07-15,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14333,  NONE, 1.1681, 1.2179, 30, 145030
 ml72 Mills_1972_Ca_Dept_H, 2007-07-21,  GDH ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 1.1347, 1.1849, 30, 1690