benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 boun Bound_1973_NCER, 1994-07-16,  WKG ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.1577, 1.2076, 30, 172430
 boun Bound_1973_NCER, 1994-07-17,  WKG ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.1577, 1.2076, 30, 1000.015