benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 fran Frances_1991_NGS, 1993-08-28,  GDH ,  USGS ,  ASHTECH LM-XII3,  0831,  7A,  ASH700228A,  1027,  NONE, 1.6902, 1.7355, 30, 20330
 fran Frances_1991_NGS, 1994-08-10,  JJD ,  USGS/CVO ,  ASHTECH LM-XII3,  007,  7A,  ASH700228D,  007,  NONE, 1.6959, 1.7412, 15, 133915
 fran Frances_1991_NGS, 1994-08-11,  JJD ,  USGS/CVO ,  ASHTECH LM-XII3,  007,  7A,  ASH700228D,  007,  NONE, 1.7892, 1.834, 15, 124215
 fran Frances_1991_NGS, 1994-08-16,  WDN ,  USGS ,  ASHTECH,  104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 1.6672, 1.7126, 30, 152530
 fran Frances_1991_NGS, 1994-08-18,  GDH ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 1.5859, 1.6319, 30, 16200
 fran Frances_1991_NGS, 2000-07-22,  GDH ,   ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.4206, 1.4678, 30, 1660
 fran Frances_1991_NGS, 2003-08-21,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.5406, 1.5869, 30, 15290
 fran Frances_1991_NGS, 2003-08-23,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945B_M,  CR519993702,  NONE, 1.5255, 1.5719, 30, 154230