benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 k443, 2001-09-15,  GB ,  USGS ,  TRIMBLE,  3608A14594 ,  4000SSI NP,  TRM29659.00,  0220073541,  NONE, 1.4111, 0, 0, 155630
 k443, 2001-09-21,  WRT ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.5174, 1.5639, 30, 16530
 k443 K443_1979_NGS, 2005-09-23,  WRT ,  USGS ,  ASHTECH,  04582 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022605,  NONE, 1.4035, 1.4508, 30, 162030
 k443 K443_1979_NGS, 2006-09-11,  CHS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.5426, 1.5889, 30, 15350
 k443 K443_1979_NGS, 2012-09-14,  JLS ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14329,  NONE, 1.2238, 1.2729, 15, 133715