benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 haly, 2003-09-14,  JMS ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.5507, 1.5969, 30, 16110
 haly, 2003-09-15,  JMS ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.6041, 1.65, 30, 13570
 haly HALY_GPS_1995_NGS, 2012-09-19,  WRT ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR619992801,  NONE, 1.6483, 1.6939, 15, 16715
 haly HALY_GPS_1995_NGS, 2015-09-18,  SAH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 1.3612, 1.4089, 15, 14615