benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 10hg, 2001-06-20,  GDH ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.3065, 1.3548, 30, 15420
 10hg, 2001-06-21,  GDH ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.2429, 1.2918, 30, 15300
 10hg 10-HG_1993_CalTrans, 2005-03-30,  GDH ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.3814, 1.4289, 30, 16560
 10hg 10-HG_1993_CalTrans, 2005-03-31,  GDH ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.4005, 1.4479, 30, 162730
 10hg 10-HG_1993_CalTrans, 2014-07-24,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.5255, 1.5719, 15, 135145
 10hg 10-HG_1993_CalTrans, 2014-07-25,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.4368, 1.4839, 15, 132845
 10hg 10-HG_1993_CalTrans, 2018-05-01,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  00488,  NONE, 1.4792, 1.526, 15, 14450
 10hg 10-HG_1993_CalTrans, 2018-05-02,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  00488,  NONE, 1.4368, 1.4839, 15, 14145