benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 vert, 2001-09-14,  FFP ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.0342, 1.0858, 30, 152330
 vert, 2001-09-20,  JNA ,   ,  ASHTECH,  lp019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.0636, 1.1148, 30, 161330
 vert Vert_USGS, 2005-09-16,  MCN ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.2369, 1.2859, 30, 16510
 vert Vert_USGS, 2006-09-16,  CMH ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.3006, 1.3489, 30, 16350
 vert Vert_USGS, 2010-09-20,  JLS ,  USGS ,  TRIMBLE,  4927175204 ,  NETRS NP,  ASH701945E_M,  CR520031622,  NONE, 1.176, 1.2257, 15, 131530