benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 caht Cahto_1942_1880_USC&, 1992-05-08,  WKG ,  USGS ,  ASHTECH,  99 ,  LM-XII3 6A,  ASH700228D,  1036,  NONE, 1.2564, 1.3052, 30, 2350
 caht Cahto_1942_1880_USC&, 1994-09-18,  GDH ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 1.3026, 1.3509, 30, 154030