benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ltbr LTBR_2005_USGS, 2006-08-11,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.5437, 0.6088, 30, 0
 ltbr LTBR_2005_USGS, 2006-08-18,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR519993702,  NONE, 0.5867, 0.6499, 30, 0
 ltbr LTBR_2005_USGS, 2006-08-19,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR519993702,  NONE, 0.5867, 0.6499, 30, 0
 ltbr LTBR_2005_USGS, 2006-08-20,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR519993702,  NONE, 0.5867, 0.6499, 30, 0
 ltbr LTBR_2005_USGS, 2006-11-16,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.5384, 0.6038, 30, 0
 ltbr LTBR_2005_USGS, 2006-11-17,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.5384, 0.6038, 30, 0
 ltbr LTBR_2005_USGS, 2006-11-18,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.5384, 0.6038, 30, 0
 ltbr LTBR_2005_USGS, 2007-08-16,  GDH ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945E_M,  CR620022601,  NONE, 0.6668, 0.7269, 30, 0
 ltbr LTBR_2005_USGS, 2007-08-17,  GDH ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945E_M,  CR620022601,  NONE, 0.6668, 0.7269, 30, 0
 ltbr LTBR_2005_USGS, 2008-07-14,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945E_M,  CR620022601,  NONE, 0.618, 0.6799, 30, 0
 ltbr LTBR_2005_USGS, 2008-07-15,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945E_M,  CR620022601,  NONE, 0.618, 0.6799, 30, 0
 ltbr LTBR_2005_USGS, 2008-07-16,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945E_M,  CR620022601,  NONE, 0.618, 0.6799, 30, 0
 ltbr LTBR_2005_USGS, 2009-08-11,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.673, 0.7328, 30, 18430
 ltbr LTBR_2005_USGS, 2009-08-12,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.673, 0.7328, 30, 0
 ltbr LTBR_2005_USGS, 2009-08-13,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.673, 0.7328, 30, 0
 ltbr LTBR_2005_USGS, 2010-06-23,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.6357, 0.6969, 15, 0
 ltbr LTBR_2005_USGS, 2010-06-24,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.6357, 0.6969, 15, 0
 ltbr LTBR_2005_USGS, 2021-11-16,  JLS ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  ASH700936D_M,  CR14244,  NONE, 0.6564, 0.7168, 15, 0
 ltbr LTBR_2005_USGS, 2021-11-17,  JLS ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  ASH700936D_M,  CR14244,  NONE, 0.6564, 0.7168, 15, 0
 ltbr LTBR_2005_USGS, 2021-11-18,  JLS ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  ASH700936D_M,  CR14244,  NONE, 0.6564, 0.7168, 15, 0