benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 jd52 10JD_1952_USGS, 1993-07-16,  GAM ,  USGS ,  ASHTECH LM-XII3,  104,  7A26,  ASH700228D,  1068,  NONE, 1.1174, 1.1678, 30, 23350
 jd52, 2001-07-31,  UNKNOWN ,  not provided ,  ASHTECH Z-XII3,  LP03319,  CC001D02,  ASH700936E_C,  CR16408,  NONE, 0.6916, 0.7508, 30, 163730
 jd52 10JD_1952_USGS, 2002-07-22,  DR_ ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  381,  NONE, 0.9839, 1.0363, 30, 16390
 jd52 10JD_1952_USGS, 2015-09-15,  SKW ,  USGS ,  JAVAD TRE_G3TH,  00470,  SIGMA-Unknown-,  TRM41249.00,  60194583,  NONE, 0.9239, 0.983, 15, 192615
 jd52 10JD_1952_USGS, 1992-08-11,  KWC ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.3117, 1.3599, 30, 185835
 jd52 10JD_1952_USGS, 1994-08-01,  CHS ,  USGS ,  ASHTECH,  104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 1.4353, 1.4824, 30, 14290
 jd52 10JD_1952_USGS, 1996-07-19,  CHS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F00,  ASH700228D,  1036,  NONE, 1.4393, 1.4864, 30, 16530
 jd52 10JD_1952_USGS, 1996-07-20,  GDH ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.2834, 1.3319, 30, 15590
 jd52 10JD_1952_USGS, 1998-07-27,  JMS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1F50,  ASH700936E_C,  CR16381,  NONE, 1.3621, 1.4098, 30, 153930
 jd52 10JD_1952_USGS, 1998-07-28,  GDH ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1F50,  ASH700936D_M,  CR14329,  NONE, 1.2853, 1.3337, 30, 153830
 jd52 10JD_1952_USGS, 1999-07-22,  ASH ,   ,  ASHTECH,  LP03362 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.2166, 1.2658, 30, 154530
 jd52 10JD_1952_USGS, 1999-07-23,  GDH ,   ,  ASHTECH,  278 ,  Z-XII3 CB00,  ASH700936E_C,  CR16379,  NONE, 1.2843, 1.3328, 30, 153330
 jd52 10JD_1952_USGS, 2002-07-13,  CHS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.2218, 1.2709, 30, 153330
 jd52 10JD_1952_USGS, 2002-07-20,  AWL ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.2288, 1.2778, 30, 153430
 jd52 10JD_1952_USGS, 2005-07-27,  JOL ,  USGS ,  ASHTECH,  579 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.2511, 1.2999, 30, 15410
 jd52 10JD_1952_USGS, 2005-07-28,  CHS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945E_M,  CR520031615,  NONE, 1.344, 1.3919, 30, 15330
 jd52 10JD_1952_USGS, 2007-07-21,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH701945E_M,  CR620022601,  NONE, 1.3723, 1.4199, 30, 1680
 jd52 10JD_1952_USGS, 2007-07-25,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.2258, 1.2749, 30, 1740
 jd52 10JD_1952_USGS, 2009-07-19,  JLS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L001,  ASH701945B_M,  CR619992801,  NONE, 1.2218, 1.2709, 30, 135130
 jd52 10JD_1952_USGS, 2009-07-21,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945B_M,  CR619992805,  NONE, 1.2824, 1.3309, 30, 15110
 jd52 10JD_1952_USGS, 2011-08-14,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH700936D_M,  CR14341,  NONE, 1.3097, 1.3579, 15, 152515
 jd52 10JD_1952_USGS, 2013-07-10,  JLS ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH701945B_M,  CR519993703,  NONE, 1.1752, 1.2249, 15, 133845
 jd52 10JD_1952_USGS, 2013-07-11,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 1.455, 1.5019, 15, 154315
 jd52 10JD_1952_USGS, 2015-09-16,  SKW ,  USGS ,  JAVAD,  00470 ,  TRE_G3TH SIGMA-Unkn,  TRM41249.00,  60194583,  NONE, 0.9239, 0.983, 15, 0