benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 awtz Avawatz_1947_USGS, 1994-03-21,  KWC ,  USGS ,  ASHTECH LM-XII3,  99,  7A,  ASH700228D,  1036,  NONE, 1.3076, 1.3558, 30, 191330