benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 g210 G210_stmpd_R50_1934_U, 1992-10-21,   ,   ,  TURBOROGUE REC,  132,  #,  AOAD/M_T,  132,  NONE, 0.9886, 0, 30, 174330
 g210 G210_stmpd_R50_1934_U, 1992-10-22,   ,   ,  TURBOROGUE REC,  132,  #,  AOAD/M_T,  132,  NONE, 1.0886, 0, 30, 15270
 g210, 1996-09-29,  WRT ,  USGS ,  ASHTECH Z-XII3,  *LP00141,  1F00,  ASH700718B,  11416,  NONE, 1.1571, 1.207, 30, 154830
 g210, 1998-09-27,  JTB ,  USGS ,  ASHTECH Z-XII3,  188,  CB00,  ASH700936D_M,  CR14333,  NONE, 1.1943, 1.2437, 30, 155430
 g210 G210_stmpd_R50_1934_U, 2002-09-15,  BW ,  USGS MENLO PARK ,  TRIMBLE 4000SSE,  3407A05141,  NP,  TRM22020.00+GP,  0220051874,  NONE, 1.0744, 0, 30, 1680
 g210 G210_stmpd_R50_1934_U, 2002-09-16,  MCN ,  USGS ,  ASHTECH Z-XII3,  04600,  CD00,  ASH701945B_M,  CR619992801,  NONE, 1.2743, 1.3229, 30, 15030