benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 02uk HPGN_02-UK_1997_CalT, 2010-10-06,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945B_M,  CR619992801,  NONE, 1.4459, 1.4929, 15, 155715
 02uk HPGN_02-UK_1997_CalT, 2010-10-07,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945B_M,  CR619992801,  NONE, 1.46, 1.5069, 15, 154645
 02uk HPGN_02-UK_1997_CalT, 2012-11-28,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 1.4479, 1.4949, 15, 162145
 02uk HPGN_02-UK_1997_CalT, 2012-11-29,  JLS ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 1.247, 1.2959, 15, 152415
 02uk HPGN_02-UK_1997_CalT, 2013-09-09,  SAH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 1.3258, 1.3738, 15, 154530
 02uk HPGN_02-UK_1997_CalT, 2013-09-10,  SAH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 1.3975, 1.4449, 15, 141815