benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 e259, 1996-09-25,  NK ,  USGS ,  ASHTECH,  274 ,  Z-XII3 1E86,  ASH700228D,  1058,  NONE, 1.1376, 1.1877, 30, 15590
 e259, 1996-09-26,  NK ,  USGS ,  ASHTECH,  274 ,  Z-XII3 1E86,  ASH700228D,  1058,  NONE, 1.1588, 1.2087, 30, 15510
 e259, 1998-09-24,  CAF ,  USGS ,  ASHTECH,  LP03464 ,  Z-XII3 CB00,  ASH700936E_C,  CR16364,  NONE, 1.1559, 1.2058, 30, 155530
 e259 E259_stmpd_G36_1934_, 2002-09-14,  TXN ,  USGS MENLO PARK ,  TRIMBLE,  3616A15404 ,  4000SSI NP,  TRM22020.00+GP,  0080053861,  NONE, 1.1367, 0, 30, 1500