benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 carc CARC_07_EHT, 2007-03-16,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.6544, 0.7149, 30, 0
 carc CARC_07_EHT, 2007-03-17,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.6544, 0.7149, 30, 0
 carc CARC_07_EHT, 2014-01-09,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.9102, 0.964, 15, 0
 carc CARC_07_EHT, 2014-01-10,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.9102, 0.964, 15, 0
 carc CARC_07_EHT, 2014-01-11,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.9102, 0.964, 15, 0