benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hp74 HPGN_07-04_1991_CDOT, 1994-01-19,  KWC ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.4694, 1.5162, 30, 5110
 hp74 HPGN_07-04_1991_CDOT, 1994-01-20,  KWC ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.5056, 1.5521, 30, 16030
 hp74 HPGN_07-04_1991_CDOT, 1994-01-21,  KWC ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.5969, 1.6428, 30, 15580
 hp74 HPGN_07-04_1991_CDOT, 1994-01-23,  CHS ,  USGS ,  ASHTECH,  104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 1.3529, 1.4007, 30, 15550
 hp74 HPGN_07-04_1991_CDOT, 1994-02-01,  MWC ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A,  ASH700228A,  0745,  NONE, 1.5924, 1.6383, 30, 1110
 hp74 HPGN_07-04_1991_CDOT, 1994-02-02,  CHS ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.4574, 1.5043, 30, 4330
 hp74 HPGN_07-04_1991_CDOT, 1994-02-15,  JMS ,  USGS ,  ASHTECH,  99 ,  LM-XII3 7A,  ASH700228D,  1036,  NONE, 1.373, 1.4206, 30, 232530
 hp74 HPGN_07-04_1991_CDOT, 1994-03-15,  JMS ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.4302, 1.4773, 30, 144830
 hp74 HPGN_07-04_1991_CDOT, 1994-05-17,  KWC ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 1.5548, 1.601, 30, 14410
 hp74 HPGN_07-04_1991_CDOT, 1994-10-25,   ,  USGS ,  TRIMBLE,  1502 ,  4000 SSE,  TRIMBLE,  64336,  4000, 1.4645, 0, 15, 135615
 hp74 HPGN_07-04_1991_CDOT, 1994-10-26,   ,  USGS ,  TRIMBLE,  1502 ,  4000 SSE,  TRIMBLE,  64336,  4000, 1.4145, 0, 15, 14115
 hp74 HPGN_07-04_1991_CDOT, 1994-11-05,  KWC ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E001,  ASH700228A,  0718,  NONE, 1.4372, 1.4843, 30, 23140
 hp74 HPGN_07-04_1991_CDOT, 1995-01-31,  KWC ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E00,  ASH700228D,  1068,  NONE, 1.3951, 1.4425, 30, 15590
 hp74 HPGN_07-04_1991_CDOT, 1995-12-05,  CHS ,  USGS ,  ASHTECH,  143 ,  Z-XII3 1F00,  ASH700718B,  11401,  NONE, 1.4835, 1.5302, 30, 16630
 hp74 HPGN_07-04_1991_CDOT, 1996-12-04,  GDH ,  USGS ,  ASHTECH,  143 ,  Z-XII3 1E95,  ASH700228D,  1058,  NONE, 1.3147, 1.3629, 30, 17150
 hp74 HPGN_07-04_1991_CDOT, 1996-12-11,  CHS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700228A,  1026,  NONE, 1.5277, 1.5741, 30, 161630
 hp74 HPGN_07-04_1991_CDOT, 1998-03-13,  GDH ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E95,  ASH700936D_M,  CR14341,  NONE, 1.3439, 1.3918, 30, 163930
 hp74 HPGN_07-04_1991_CDOT, 1998-03-16,  CHS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.4166, 1.4638, 30, 16320
 hp74 HPGN_07-04_1991_CDOT, 1999-05-20,  GDH ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936E_C,  CR16975,  NONE, 1.4367, 1.4838, 30, 175730
 hp74 HPGN_07-04_1991_CDOT, 1999-05-22,  CHS ,  USGS ,  ASHTECH,  LP03450 ,  Z-XII3 CB00,  ASH700936D_M,  CR14333,  NONE, 1.5738, 1.6199, 30, 15160
 hp74 HPGN_07-04_1991_CDOT, 2001-04-19,  GDH ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.355, 1.4028, 30, 162030
 hp74 HPGN_07-04_1991_CDOT, 2001-04-20,  JMS ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993705,  NONE, 1.612, 1.6578, 30, 154830