benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 orcc Orchard_Ecc_(OR_ECC), 1994-08-11,  GDH ,  USGS ,  ASHTECH,  283 ,  Z-XII3 1C01,  ASH700228A,  134,  NONE, 1.4122, 1.4595, 30, 172630
 orcc Orchard_Ecc_(OR_ECC), 1997-08-22,  GDH ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.4337, 1.4808, 30, 17230