benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hblf, 1994-06-16,  Siegel Lori / Owen,  Stanford University ,  TRIMBLE 4000SSE,  3327A03454,  NP,  TRM14532.00,  3012A00103,  NONE, 0.5758, 0, 30, 23630
 hblf, 1994-06-17,  Siegel Lori / Owen,  Stanford University ,  TRIMBLE 4000SSE,  3327A03454,  NP,  TRM14532.00,  3012A00103,  NONE, 0.6656, 0, 30, 24630
 hblf, 2013-03-12,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.1469, 1.1969, 15, 18915
 hblf, 2013-03-13,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.1469, 1.1969, 15, 0
 hblf, 2013-03-15,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.1874, 1.2369, 15, 0
 hblf, 2013-03-16,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.1874, 1.2369, 15, 0
 hblf, 2013-03-17,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.1874, 1.2369, 15, 0