benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 t3sr T3SR29ES17S16_1/4_19, 2006-07-17,  GDH ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.1752, 1.2249, 30, 163430
 t3sr T3SR29ES17S16_1/4_19, 2006-07-19,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.1732, 1.2229, 30, 154230