benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ranc, 2001-06-07,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993705,  NONE, 1.4085, 1.4558, 30, 164030
 ranc Ranchito_1959_USGS, 2001-06-08,  JMS ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993705,  NONE, 1.4085, 1.4558, 30, 10