benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 b220 B220_stmpd_S383_1955, 1992-10-08,   ,   ,  TURBOROGUE,  132 ,   ,  AOAD/M_T,  132,  NONE, 1.1418, 0, 30, 155430
 b220 B220_stmpd_S383_1955, 1996-09-20,  KAS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 1.2342, 1.2832, 30, 161330
 b220 B220_stmpd_S383_1955, 1998-09-18,  CHS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 CB00,  ASH700936E_C,  CR16379,  NONE, 1.3177, 1.3658, 30, 154130
 b220 B220_stmpd_S383_1955, 2000-08-21,  JMS ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 0.4927, 0.5606, 30, 143230
 b220 B220_stmpd_S383_1955, 2002-09-09,  SO.JH ,  USGS MENLO PARK ,  TRIMBLE,  3427A06745 ,  4000SSE NP,  TRM22020.00+GP,  0220052070,  NONE, 1.4188, 0, 30, 15520
 b220 B220_stmpd_S383_1955, 2002-09-18,  TJW ,  USGS MENLO PARK ,  TRIMBLE,  4005A27619 ,  4000SSI NP,  TRM22020.00+GP,  0080122259,  NONE, 1.1779, 0, 30, 162230