benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 rond, 2001-09-18,  CWW ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.2044, 1.2537, 30, 1500
 rond, 2001-09-19,  CWW ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.2044, 1.2537, 30, 10
 rond, 2001-09-25,  GB ,  USGS ,  TRIMBLE,  3608A14631 ,  4000SSI NP,  TRM29659.00,  0220073540,  NONE, 0.7737, 0, 0, 550
 rond Rond_USGS, 2005-09-16,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 0.5131, 0.5799, 30, 171530
 rond Rond_USGS, 2005-09-17,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 0.5131, 0.5799, 30, 0
 rond Rond_USGS, 2005-09-18,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 0.5131, 0.5799, 30, 0
 rond Rond_USGS, 2010-09-29,  SAH ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 1.243, 1.2919, 15, 161245