benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 DR11, 2021-05-20,  JLS ,  USGS ,  TRIMBLE,  4927175164 ,  NETRS 1.3-2,  TRM57971.00,  1440925376,  NONE, 0.8099, 0.871, 15, 192015
 DR11, 2021-05-21,  JLS ,  USGS ,  TRIMBLE,  4927175164 ,  NETRS 1.3-2,  TRM57971.00,  1440925376,  NONE, 0.8099, 0.871, 15, 0
 dr11, 2022-04-12,  ELP ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01592,  NONE, 0.6937, 0.7529, 15, 16530