benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 g290 G290_stmpd_T23S_R6E_, 1992-10-21,   ,   ,  TURBOROGUE,  T127 ,   ,  AOAD/M_T,  114,  NONE, 0.7273, 0, 30, 171830
 g290 G290_stmpd_T23S_R6E_, 1992-10-22,   ,   ,  TURBOROGUE,  T127 ,   ,  AOAD/M_T,  114,  NONE, 0.7273, 0, 30, 0
 g290, 1996-09-30,  JMS ,  USGS ,  ASHTECH,  275 ,  Z-XII3 1E86,  ASH700228A,  1026,  NONE, 1.1839, 1.2335, 30, 15360
 g290, 1998-09-28,  JMS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 CB00,  ASH700936E_C,  CR16116,  NONE, 1.2954, 1.3438, 30, 14410
 g290 G290_stmpd_T23S_R6E_, 2002-09-15,  TJW ,  USGS MENLO PARK ,  TRIMBLE,  3616A15412 ,  4000SSI NP,  TRM22020.00+GP,  0080122259,  NONE, 1.0392, 0, 30, 15560
 g290 G290_stmpd_T23S_R6E_, 2002-09-18,  WC ,  USGS MENLO PARK ,  TRIMBLE,  3337A03970 ,  4000SSE NP,  TRM22020.00+GP,  0220051878,  NONE, 1.3094, 0, 30, 15430