benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sahu Sarg_1990_NGS, 2003-08-25,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945B_M,  CR519993702,  NONE, 1.3178, 1.3659, 30, 153830
 sahu Sarg_1990_NGS, 2003-08-26,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.4288, 1.476, 30, 151330