benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 bm07 NO_7_CityOfL.A., 2006-07-07,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.3686, 0.4457, 30, 15330
 bm07 NO_7_CityOfL.A., 2006-07-08,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.3686, 0.4457, 30, 0
 bm07 NO_7_CityOfL.A., 2006-07-09,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.3686, 0.4457, 30, 0