benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 woaz Worden_Azi_Unstamped, 1993-08-30,  KWC ,  USGS ,  ASHTECH LM-XII3,  765,  7A26,  ASH700228D,  1058,  NONE, 1.3016, 1.3499, 30, 21160
 woaz Worden_Azi_Unstamped, 1993-08-29,  KWC ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A26,  ASH700228D,  1058,  NONE, 1.1396, 1.1897, 30, 223830
 WOPL, 1996-08-06,  JMS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1F00,  ASH700228D,  1068,  NONE, 0.5692, 0.6331, 30, 18730