benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 emtr, 2016-07-14,  ELP ,  USGS ,  JAVAD,  01660 ,  TRE_G3TH SIGMA3.5.1,  ASH701945E_M,  CR520031615,  NONE, 0.8212, 0.8768, 15, 143245
 emtr, 2016-07-16,  JLS ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.9,  ASH700936D_M,  CR14330,  NONE, 0.7905, 0.8469, 15, 135315
 emtr, 2018-06-24,  JLS ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.1,  ASH700936D_M,  CR14244,  NONE, 1.1469, 1.1969, 15, 133645
 emtr, 2018-07-18,  ELP ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  01599,  NONE, 1.2551, 1.3039, 15, 123145
 emtr, 2021-04-21,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.7.6,  ASH701945E_M,  CR520031615,  NONE, 1.1742, 1.2239, 15, 14290
 emtr, 2021-08-17,  JLS ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.7.6,  ASH700936D_M,  CR14244,  NONE, 1.1732, 1.2229, 15, 143945