benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 z210 Z210_USGS, 2005-09-27,  WRT ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022605,  NONE, 1.1155, 1.1659, 30, 30