benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 M139, 2010-07-13,  Brad P Lipovsky ,  University of Califo,  TRIMBLE 5700,  0220281511,  NP,  TRM41249.00,  12337743,  NONE, 1.4304, 1.4845, 15, 33245
 M139, 2010-07-16,  G.Funning/D.Swann ,  University of Califo,  TRIMBLE R7,  0220413518,  NP,  TRM41249.00,  60222738,  NONE, 1.4584, 1.5123, 30, 390
 M139, 2014-07-04,  M.Floyd/N.Senobari ,  MIT/University of Ca,  TRIMBLE 5700,  0220281511,  NP,  TRM41249.00,  12337640,  NONE, 1.7121, 1.7646, 30, 20260
 M139, 2014-08-26,  M.Floyd/K.Materna ,  M.I.T. / U.C. Berkel,  TRIMBLE NETR9,  5043K71320,  NP,  TRM57971.00,  1441107432,  NONE, 1.788, 1.8402, 30, 0
 M139, 2014-08-27,  M.Floyd/K.Materna ,  M.I.T. / U.C. Berkel,  TRIMBLE NETR9,  5043K71320,  NP,  TRM57971.00,  1441107432,  NONE, 1.7877, 1.8399, 30, 0
 M139, 2014-08-28,  M.Floyd/K.Materna ,  M.I.T. / U.C. Berkel,  TRIMBLE NETR9,  5043K71320,  NP,  TRM57971.00,  1441107432,  NONE, 1.7877, 1.8399, 30, 0
 M139, 2014-08-29,  M.Floyd/K.Materna ,  M.I.T. / U.C. Berkel,  TRIMBLE NETR9,  5043K71320,  NP,  TRM57971.00,  1441107432,  NONE, 1.7877, 1.8399, 30, 0
 M139, 2014-08-30,  M.Floyd/K.Materna ,  M.I.T. / U.C. Berkel,  TRIMBLE NETR9,  5043K71320,  NP,  TRM57971.00,  1441107432,  NONE, 1.7877, 1.8399, 30, 0
 M139, 2014-08-31,  M.Floyd/K.Materna ,  M.I.T. / U.C. Berkel,  TRIMBLE NETR9,  5043K71320,  NP,  TRM57971.00,  1441107432,  NONE, 1.7877, 1.8399, 30, 0
 M139, 2015-01-29,  G.Funning/K.Materna ,  U.C. Riverside / U.C,  TRIMBLE R7,  0220413522,  NP,  TRM57971.00,  1441045101,  NONE, 1.7099, 1.7624, 30, 1930