benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ucbk UCBerkeley_stamped_U, 1992-02-14,  WKG ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 6A,  ASH700228D,  1068,  NONE, 1.5758, 1.6218, 30, 7420
 ucbk UCBerkeley_stamped_U, 1993-01-11,  WKG ,  USGS ,  ASHTECH,  764 ,  LM-XII3 6M24,  ASH700228A,  0598,  NONE, 1.5477, 1.5939, 30, 122430
 ucbk UCBerkeley_stamped_U, 1994-04-21,  WKG ,  USGS ,  ASHTECH,  104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 1.7113, 1.7565, 30, 135330
 ucbk UCBerkeley_stamped_U, 1995-04-04,  GDH ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E00,  ASH700228D,  1058,  NONE, 1.2131, 1.2623, 30, 1650
 ucbk UCBerkeley_stamped_U, 1996-04-04,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.4225, 1.4697, 30, 1750
 ucbk UCBerkeley_stamped_U, 1997-07-15,  JMS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.465, 1.5119, 30, 16240
 ucbk UCBerkeley_stamped_U, 1997-07-21,  CHS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E95,  ASH700936D_M,  CR14333,  NONE, 1.4498, 1.4968, 30, 152930
 ucbk UCBerkeley_stamped_U, 1998-06-23,  JMS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1F50,  ASH700936D_M,  CR14329,  NONE, 1.3671, 1.4148, 30, 16270
 ucbk UCBerkeley_stamped_U, 1998-06-25,  CHS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F50,  ASH700936D_M,  CR14244,  NONE, 1.3661, 1.4138, 30, 152430
 ucbk UCBerkeley_stamped_U, 2001-01-22,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.475, 1.5218, 30, 172130
 ucbk UCBerkeley_stamped_U, 2001-01-24,  CHS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.2702, 1.3188, 30, 16830
 ucbk UCBerkeley_stamped_U, 2003-01-14,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.5779, 1.6239, 30, 17330
 ucbk UCBerkeley_stamped_U, 2003-01-15,  CHS ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.342, 1.3899, 30, 16110
 ucbk UCBerkeley_stamped_U, 2006-01-24,  CHS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.2996, 1.3479, 30, 15490
 ucbk UCBerkeley_stamped_U, 2006-01-25,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.4701, 1.5169, 30, 164930
 ucbk UCBerkeley_stamped_U, 2014-06-24,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.3571, 1.4049, 15, 144445
 ucbk UCBerkeley_stamped_U, 2014-06-25,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.3723, 1.4199, 15, 154515