benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 HPGN CA, 1998-08-07,  unknown ,  CALIF DEPT TRANSPORT,  TRIMBLE 4000,  11526,  SSE,  TRM22020.00+GP,  30426,  NONE, 2, 0, 15, 144830
 HPGN CA, 1998-08-10,  unknown ,  CALIF DEPT TRANSPORT,  TRIMBLE 4000,  4872,  SSE,  TRM22020.00+GP,  728,  NONE, 2, 0, 15, 18440
 HPGN CA, 1998-08-11,  unknown ,  CALIF DEPT TRANSPORT,  TRIMBLE 4000,  4872,  SSE,  TRM22020.00+GP,  728,  NONE, 2, 0, 15, 14350
 CLAMBEACH1, 2001-05-21,  UAF/HSU ,  UAF/HSU ,  TRIMBLE 4000SSE,  4781,  NP,  TRM22020.00+GP,  48770,  NONE, 1.7733, 0, 30, 162730
 SMITH RIVER, 2001-05-22,  UAF/HSU ,  UAF/HSU ,  TRIMBLE 4000SSE,  4781,  NP,  TRM22020.00+GP,  48770,  NONE, 1.6602, 0, 30, 15330
 hp13 HPGN_01-13_1991_Cal_, 2001-07-19,  GDH ,   ,  ASHTECH,  lp019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.2378, 1.2868, 30, 16930
 hp13 HPGN_01-13_1991_CalT, 2005-06-26,  CHS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.4741, 1.5209, 30, 152030
 hp13 HPGN_01-13_1991_Cal_, 2005-06-27,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.2764, 1.3249, 30, 162130