benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 1529 020LAK_1529_CalTrans, 2005-10-28,  CHS ,  USGS ,  ASHTECH Z-XII3,  LP019992804,  CD00,  ASH700936D_M,  CR14330,  NONE, 1.4872, 1.5339, 30, 15500
 1529 020LAK_1529_CalTrans, 2005-10-31,  CHS ,  USGS ,  ASHTECH Z-XII3,  LP019992804,  CD00,  ASH700936D_M,  CR14330,  NONE, 1.4459, 1.4929, 30, 163430
 1529 020LAK_1529_CalTrans, 2006-08-28,  CHS ,  USGS ,  ASHTECH Z-XII3,  LP020000801,  CD00,  ASH701945E_M,  CR520031615,  NONE, 1.46, 1.5069, 30, 155230
 1529 020LAK_1529_CalTrans, 2006-08-29,  JMS ,  USGS ,  ASHTECH Z-X,  ZE1200526028,  ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.4852, 1.5319, 30, 15570
 1529 020LAK_1529_CalTrans, 2008-07-09,  CHS ,  USGS ,  ASHTECH Z-XII,  LP020000801,  1L00,  ASH701945E_M,  CR620022602,  NONE, 1.5698, 1.6159, 30, 15730
 1529 020LAK_1529_CalTrans, 2008-07-13,  CHS ,  USGS ,  ASHTECH Z-XII,  LP020000801,  1L00,  ASH701945E_M,  CR620022602,  NONE, 1.456, 1.5029, 30, 145730
 1529 020LAK_1529_CalTrans, 2010-07-08,  JLS ,  USGS ,  TRIMBLE NETRS,  4927175135,  NP,  ASH701945E_M,  CR520031622,  NONE, 1.2875, 1.336, 15, 142745
 1529 020LAK_1529_CalTrans, 2010-07-09,  CHS ,  USGS ,  ASHTECH Z-X,  ZE1200331006,  ZE210A13,  ASH701945B_M,  CR619992805,  NONE, 1.46, 1.5069, 15, 152315