benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 vigr, 2001-09-20,  CHS ,   ,  ASHTECH,  lp020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.2722, 1.3208, 30, 15240
 vigr VIGR_StateHwyDept, 2002-06-13,  WCH ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.1783, 1.2279, 30, 161130
 vigr VIGR_StateHwyDept, 2005-09-23,  CHS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14333,  NONE, 1.1975, 1.2469, 30, 15190
 vigr VIGR_StateHwyDept, 2006-09-20,  SAH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.2834, 1.3319, 30, 153630
 vigr VIGR_StateHwyDept, 2010-09-14,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5532, 0.6178, 15, 154815
 vigr VIGR_StateHwyDept, 2010-09-15,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.2228, 1.2719, 15, 151315