benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 dr06, 2021-05-20,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  ASH701945E_M,  CR520031615,  NONE, 0.8468, 0.9018, 15, 19320
 dr06, 2021-05-21,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  ASH701945E_M,  CR520031615,  NONE, 0.8468, 0.9018, 15, 0
 dr06, 2022-04-11,  ELP ,  USGS ,  JAVAD,  01657 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00574,  NONE, 0.8028, 0.8589, 15, 195945