benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 bldi BLDI_USGS, 2009-08-22,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945E_M,  CR620022601,  NONE, 0.55, 0.6148, 30, 18330
 bldi BLDI_USGS, 2009-08-23,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945E_M,  CR620022601,  NONE, 0.55, 0.6148, 30, 30
 bldi BLDI_USGS, 2009-08-24,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945E_M,  CR620022601,  NONE, 0.55, 0.6148, 30, 30
 bldi BLDI_USGS, 2009-08-25,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945E_M,  CR620022601,  NONE, 0.55, 0.6148, 30, 30
 bldi BLDI_USGS, 2010-07-22,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.53, 0.5959, 15, 164045
 bldi BLDI_USGS, 2010-07-23,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.53, 0.5959, 15, 0
 bldi BLDI_USGS, 2010-07-24,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.53, 0.5959, 15, 0
 bldi BLDI_USGS, 2012-10-15,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00574,  NONE, 0.7205, 0.7788, 15, 18915
 bldi BLDI_USGS, 2012-10-16,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00574,  NONE, 0.7205, 0.7788, 15, 0
 bldi BLDI_USGS, 2012-10-17,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00574,  NONE, 0.7205, 0.7788, 15, 0
 bldi BLDI_USGS, 2012-10-18,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00574,  NONE, 0.7205, 0.7788, 15, 0
 bldi BLDI_USGS, 2017-03-14,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.5.1,  ASH700936D_M,  CR14329,  NONE, 0.7391, 0.7969, 15, 172545
 bldi BLDI_USGS, 2017-03-15,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.5.1,  ASH700936D_M,  CR14329,  NONE, 0.7391, 0.7969, 15, 0
 bldi BLDI_USGS, 2017-03-16,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.5.1,  ASH700936D_M,  CR14329,  NONE, 0.7391, 0.7969, 15, 0
 bldi BLDI_USGS, 2017-03-17,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.5.1,  ASH700936D_M,  CR14329,  NONE, 0.7391, 0.7969, 15, 0