benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sher Sheridan_1989_NCER, 1992-03-03,  CHS ,  USGS ,  ASHTECH,  764 ,  LM-XII3 6A,  ASH700228A,  0598,  NONE, 1.3147, 1.3629, 30, 232330
 sher Sheridan_1989_NCER, 1992-03-05,  CHS ,  USGS ,  ASHTECH,  99 ,  LM-XII3 6A,  ASH700228D,  1036,  NONE, 1.2895, 1.3379, 30, 6630
 sher Sheridan_1989_NCER, 1993-01-26,  JMS ,  USGS ,  ASHTECH,  099 ,  LM-XII3 6M24,  ASH700228D,  1036,  NONE, 1.3639, 1.4116, 30, 102730
 sher Sheridan_1989_NCER, 1994-05-03,  JMS ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 1.3016, 1.3499, 30, 14300
 sher Sheridan_1989_NCER, 1995-07-11,  KWC ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E00,  ASH700228D,  1068,  NONE, 1.3217, 1.3698, 30, 16100
 sher Sheridan_1989_NCER, 1996-06-25,  CHS ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.3631, 1.4108, 30, 153530
 sher Sheridan_1989_NCER, 1997-08-01,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700936D_M,  CR14341,  NONE, 1.3913, 1.4388, 30, 15440
 sher Sheridan_1989_NCER, 1997-10-08,  JMS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936D_M,  CR14341,  NONE, 1.3318, 1.3798, 30, 153730
 sher Sheridan_1989_NCER, 1999-08-05,  JMS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.3459, 1.3938, 30, 10
 sher Sheridan_1989_NCER, 1999-08-10,  CHS ,   ,  ASHTECH,  O4591 ,  Z-XII3 CC00,  ASH700936D_M,  CR14333,  NONE, 1.2924, 1.3408, 30, 10
 sher Sheridan_1989_NCER, 2001-03-20,  JMS ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993703,  NONE, 1.3267, 1.3748, 30, 181030
 sher Sheridan_1989_NCER, 2001-03-21,  JMS ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993703,  NONE, 1.3267, 1.3748, 30, 30
 sher Sheridan_1989_NCER, 2001-03-22,  JMS ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993703,  NONE, 1.3267, 1.3748, 30, 10
 sher Sheridan_1989_NCER, 2005-03-15,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992805,  NONE, 1.2491, 1.2979, 30, 30
 sher Sheridan_1989_NCER, 2005-03-16,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992805,  NONE, 1.2491, 1.2979, 30, 30
 sher Sheridan_1989_NCER, 2005-03-17,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992805,  NONE, 1.2491, 1.2979, 30, 30
 sher Sheridan_1989_NCER, 2014-07-14,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.7884, 0.8448, 15, 2340
 sher Sheridan_1989_NCER, 2014-07-15,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.7884, 0.8448, 15, 0
 sher Sheridan_1989_NCER, 2014-07-16,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.7884, 0.8448, 15, 0
 sher Sheridan_1989_NCER, 2014-07-17,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.7884, 0.8448, 15, 0
 sher Sheridan_1989_NCER, 2022-04-04,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00574,  NONE, 0.703, 0.7619, 15, 173130
 sher Sheridan_1989_NCER, 2022-04-05,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00574,  NONE, 0.703, 0.7619, 15, 0
 sher Sheridan_1989_NCER, 2022-04-06,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00574,  NONE, 0.703, 0.7619, 15, 0