benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 slbb SLB_USGS_unstamped_1, 1992-02-19,  GDH ,  USGS ,  ASHTECH,  107 ,  LM-XII3 6A,  ASH700228D,  *031,  NONE, 1.384, 1.4315, 30, 72730
 slbb SLB_USGS_unstamped_1, 1993-01-19,  GDH ,  USGS ,  ASHTECH,  764 ,  LM-XII3 6M24,  ASH700228A,  0598,  NONE, 1.3579, 1.4057, 30, 115530
 slbb SLB_USGS_unstamped_1, 1994-04-25,  GDH ,  USGS ,  ASHTECH,  831 ,  LM-XII3 7A,  ASH700228A,  1027,  NONE, 1.4674, 1.5142, 30, 141630
 slbb SLB_USGS_unstamped_1, 1995-06-26,  KWC ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E00,  ASH700228D,  1068,  NONE, 1.4463, 1.4933, 30, 1650
 slbb SLB_USGS_unstamped_1, 1996-06-06,  CHS ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.483, 1.5297, 30, 15410
 slbb SLB_USGS_unstamped_1, 1997-12-08,  JMS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.5587, 1.6048, 30, 174730
 slbb SLB_USGS_unstamped_1, 1997-12-16,  GDH ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E95,  ASH700936D_M,  CR14333,  NONE, 1.4166, 1.4638, 30, 164730
 slbb SLB_USGS_unstamped_1, 1999-01-13,  CHS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CB00,  ASH700936D_M,  CR14333,  NONE, 1.4176, 1.4648, 30, 16350
 slbb SLB_USGS_unstamped_1, 1999-01-14,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CB00,  ASH700936D_M,  CR14244,  NONE, 1.3197, 1.3678, 30, 165430
 slbb SLB_USGS_unstamped_1, 2001-01-31,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.5848, 1.6308, 30, 17530
 slbb SLB_USGS_unstamped_1, 2001-02-01,  GDH ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.2439, 1.2928, 30, 16380
 slbb SLB_USGS_unstamped_1, 2004-03-04,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE00,  ASH700936D_M,  CR14244,  NONE, 1.4257, 1.4729, 30, 17830
 slbb SLB_USGS_unstamped_1, 2004-03-29,  CHS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022605,  NONE, 1.4106, 1.4579, 30, 163730
 slbb SLB_USGS_unstamped_1, 2008-02-05,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.4035, 1.4508, 30, 16490
 slbb SLB_USGS_unstamped_1, 2008-02-06,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.3723, 1.4199, 30, 16240
 slbb SLB_USGS_unstamped_1, 2014-05-28,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14244,  NONE, 1.5235, 1.5699, 15, 161115
 slbb SLB_USGS_unstamped_1, 2014-05-29,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14244,  NONE, 1.5598, 1.6059, 15, 161845
 slbb SLB_USGS_unstamped_1, 2020-09-16,  ELP ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00586,  NONE, 1.4096, 1.4569, 15, 151615