benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s) wlas, 2006-07-31, KA , USGS/Cascades Volcan, TRIMBLE NETRS, 4526253186, NP, TRM41249.00, 12354183, NONE, 0.5603, 0.628, 15, 0 wlas, 2006-07-30, KA , USGS/Cascades Volcan, TRIMBLE, 4526253186 , NETRS NP, TRM41249.00, 12354183, NONE, 0.5603, 0.628, 15, 15160