benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 lump, 2000-09-12,  FFP ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993702,  NONE, 1.1032, 1.1538, 30, 17300
 lump, 2000-09-25,  CHS ,   ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.3247, 1.3728, 30, 153430
 lump LUMP_USGS, 2004-09-24,  FFP ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.1428, 1.1929, 30, 154030
 lump LUMP_USGS, 2004-09-25,  FFP ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.1104, 1.1609, 30, 152630
 lump LUMP_USGS, 2009-09-09,  SRW ,  USGS ,  ASHTECH,  04579 ,  Z-XII 1L001,  ASH701945B_M,  CR519993706,  NONE, 1.2491, 1.2979, 30, 17190
 lump LUMP_USGS, 2009-09-15,  FFP ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945B_M,  CR519993703,  NONE, 1.0982, 1.1489, 30, 154930