benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 u956, 2001-06-19,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.2762, 1.3248, 30, 16220
 u956, 2001-06-20,  JMS ,   ,  ASHTECH,  LP00108.707 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993705,  NONE, 1.3288, 1.3768, 30, 16630
 u956 U956_1962_USC&GS, 2005-03-29,  CHS ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.1459, 1.1959, 30, 16230
 u956 U956_1962_USC&GS, 2005-03-30,  CHS ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.1914, 1.2409, 30, 16400
 u956 U956_1962_USC&GS, 2018-03-08,  ELP ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  01592,  NONE, 1.2379, 1.2868, 15, 145215
 u956 U956_1962_USC&GS, 2018-03-09,  ELP ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  01592,  NONE, 1.1631, 1.2129, 15, 142545