benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ssln, 2001-09-20,  unknown ,  CVO ,  TRIMBLE,  220214232 ,  4700 NP,  TRM29659.00,  38192,  NONE, 0.8834, 0, 30, 0
 ssln, 2001-09-21,  unknown ,  CVO ,  TRIMBLE,  220214232 ,  4700 NP,  TRM29659.00,  38192,  NONE, 0.8855, 0, 30, 0.008