benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ptla, 1994-06-16,  Owen Susan ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05697,  NP,  TRM22020.00+GP,  0080098667,  NONE, 1.0823, 0, 30, 30
 ptla, 1994-06-17,  Owen Susan ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05697,  NP,  TRM22020.00+GP,  0080098667,  NONE, 1.0823, 0, 30, 30
 ptla, 1994-06-18,  Owen Susan ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05697,  NP,  TRM22020.00+GP,  0080098667,  NONE, 1.0823, 0, 30, 30
 ptla, 1994-06-19,  Owen Susan ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05697,  NP,  TRM22020.00+GP,  0080098667,  NONE, 1.0823, 0, 30, 30