benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 0302 Unknown, 1994-04-29,  Steve Holdorff ,  National Geodetic Su,  TRIMBLE 4000,  1528,  SSE,  TRM14532.00,  20,  NONE, 2.22, 0, 15, 162830