benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 dbl1, 1994-08-19,  GWB ,  JET PROPULSION LABOR,  TURBOROGUE SNR-8000,  509,  },  AOAD/M_T,  509,  NONE, 0.9134, 0, 30, 0
 dbl1, 1997-07-26,  unknown ,  UNIV CALIF DAVIS ,  TRIMBLE 4000SSI,  14630,  NP,  TRM29659.00,  89288,  NONE, 1.0788, 0, 30, 520
 dbl1, 1997-07-27,  unknown ,  UNIV CALIF DAVIS ,  TRIMBLE 4000SSI,  14630,  NP,  TRM29659.00,  89288,  NONE, 1.0788, 0, 30, 30
 dbl1, 1997-07-28,  unknown ,  UNIV CALIF DAVIS ,  TRIMBLE 4000SSI,  14630,  NP,  TRM29659.00,  89288,  NONE, 1.0788, 0, 30, 3110