benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 bays Bayshore_1989_NCER, 1993-01-26,  KMH ,  USGS ,  ASHTECH,  762 ,  LM-XII3 6M24,  ASH700228A,  0745,  NONE, 1.2392, 1.2881, 30, 113230
 bays Bayshore_1989_NCER, 1993-03-17,  GDH ,  USGS ,  ASHTECH,  764 ,  LM-XII3 6M24,  ASH700228A,  0598,  NONE, 1.2804, 1.3289, 30, 83030