benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 crdu CORD_1999_USC, 2000-07-04,  SAC ,  USC ,  ASHTECH Z-XII3,  278,  CD00,  ASH700936E_C,  CR16364,  NONE, 1.0528, 1.1041, 30, 30
 crdu CORD_1999_USC, 2000-07-05,  SAC ,  USC ,  ASHTECH Z-XII3,  278,  CD00,  ASH700936E_C,  CR16364,  NONE, 1.0528, 1.1041, 30, 30
 crdu CORD_1999_USC, 2001-08-01,  CLE ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  CR16379,  NONE, 1.239, 1.2879, 30, 30
 crdu CORD_1999_USC, 2001-08-02,  CLE ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  CR16379,  NONE, 1.239, 1.2879, 30, 30
 crdu CORD_1999_USC, 2001-08-03,  SEO ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  CR16379,  NONE, 1.2424, 1.2913, 30, 30
 crdu, 2002-07-24,  DR_ ,  USC ,  ASHTECH Z-XII3,  278,  CD00,  ASH700936E_C,  376,  NONE, 0.9977, 1.0499, 30, 10
 crdu, 2002-07-25,  DR_ ,  USC ,  ASHTECH Z-XII3,  278,  CD00,  ASH700936E_C,  376,  NONE, 0.9977, 1.0499, 30, 10
 crdu, 2010-07-18,  JMS ,  USGS ,  TRIMBLE,  0220320141 ,  5700 NP,  TRM41249.00,  12578430,  NONE, 0.4809, 0.552, 15, 530
 crdu, 2010-07-19,  JMS ,  USGS ,  TRIMBLE,  0220320141 ,  5700 NP,  TRM41249.00,  12578430,  NONE, 0.4809, 0.552, 15, 30
 crdu CORD_1999_USC, 2011-08-12,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.6699, 0.7298, 15, 18445
 crdu CORD_1999_USC, 2011-08-13,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.6699, 0.7298, 15, 0
 crdu CORD_1999_USC, 2011-08-14,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.6699, 0.7298, 15, 0
 crdu CORD_1999_USC, 2011-08-15,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.6699, 0.7298, 15, 0