benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 nasa Nasa_Site_94_USGS, 1994-03-24,  KWC ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.3177, 1.3658, 30, 172830
 nasa Nasa_Site_94_USGS, 2002-04-03,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993703,  NONE, 1.1884, 1.2379, 30, 10
 nasa Nasa_Site_94_USGS, 2002-04-04,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993703,  NONE, 1.1884, 1.2379, 30, 10
 nasa Nasa_Site_94_USGS, 2006-04-20,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 1.1894, 1.2389, 30, 17480
 nasa Nasa_Site_94_USGS, 2006-04-21,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 1.1894, 1.2389, 30, 0
 nasa Nasa_Site_94_USGS, 2006-04-22,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 1.1894, 1.2389, 30, 0
 nasa Nasa_Site_94_USGS, 2006-04-23,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 1.1894, 1.2389, 30, 0