benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 5jcm 5JCM_1982_USGS, 2006-07-18,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.158, 1.2079, 30, 155030
 5jcm 5JCM_1982_USGS, 2006-07-19,  GDH ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.3713, 1.4189, 30, 15480