benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s) mtsi Mt_Si_Unstamped, 1994-08-14, JMS , USGS , ASHTECH, 763 , LM-XII3 7A, ASH700228A, 0718, NONE, 0.5794, 0.6428, 30, 15300