benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 u76a, 2003-09-09,  CHS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.3349, 1.3829, 30, 153630
 u76a, 2003-09-10,  CHS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.3349, 1.3829, 30, 10
 u76a U76A_1996_NGS, 2012-09-17,  SAH ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.3622, 1.4099, 15, 145815
 u76a U76A_1996_NGS, 2012-09-18,  SAH ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.4207, 1.4679, 15, 15145
 u76a U76A_1996_NGS, 2015-09-15,  SAH ,  USGS ,  ASHTECH,  ZE1200411029 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 1.3551, 1.4029, 15, 151145