benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 d220 D220_stmpd_N44_1934_, 1992-10-13,   ,   ,  TURBOROGUE,  111 ,   ,  AOAD/M_T,  111,  NONE, 1.0424, 0, 30, 1600
 d220 D220_stmpd_N44_1934_, 1992-10-14,   ,   ,  TURBOROGUE,  136 ,   ,  AOAD/M_T,  136,  NONE, 0.9142, 0, 30, 161430
 d220 D220_stmpd_N44_1934_, 1996-09-23,  KAS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F00,  ASH700228D,  1036,  NONE, 1.1346, 1.1848, 30, 17180
 d220 D220_stmpd_N44_1934_, 1996-09-24,  GDH ,  USGS ,  ASHTECH,  342 ,  Z-XII3 1G00,  unknown,  *165,  NONE, 1.197, 0, 30, 15580
 d220 D220_stmpd_N44_1934_, 1998-09-21,  CHS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 CB00,  ASH700936D_M,  CR14329,  NONE, 1.2388, 1.2877, 30, 17170
 d220 D220_stmpd_N44_1934_, 1998-09-22,  CHS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 CB00,  ASH700936D_M,  CR14329,  NONE, 1.257, 1.3057, 30, 14570
 d220 D220_stmpd_N44_1934_, 2002-09-13,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 0.4395, 0.5108, 30, 143230
 d220 D220_stmpd_N44_1934_, 2002-09-15,  CWW ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.2774, 1.3259, 30, 151530