benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ea40 Eagle_1940_USGS, 1996-09-07,  JMS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 0.4257, 0.498, 30, 30
 ea40 Eagle_1940_USGS, 1996-09-09,  KAS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 0.4246, 0.497, 30, 430
 ea40 Eagle_1940_USGS, 1996-09-10,  KAS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 0.4246, 0.497, 30, 30
 ea40 Eagle_1940_USGS, 2002-08-16,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 0.3961, 0.4708, 30, 16430
 ea40 Eagle_1940_USGS, 2002-08-17,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 0.3961, 0.4708, 30, 10
 ea40 Eagle_1940_USGS, 2002-08-18,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 0.3961, 0.4708, 30, 10
 ea40 Eagle_1940_USGS, 2004-08-19,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE00,  ASH701945B_M,  CR519993706,  NONE, 0.4449, 0.5159, 30, 0
 ea40 Eagle_1940_USGS, 2004-08-20,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE00,  ASH701945B_M,  CR519993706,  NONE, 0.4449, 0.5159, 30, 0
 ea40 Eagle_1940_USGS, 2004-08-21,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE00,  ASH701945B_M,  CR519993706,  NONE, 0.4449, 0.5159, 30, 0