benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ghin GHIN_USGS, 2011-04-20,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.3359, 1.3839, 15, 0
 ghin GHIN_USGS, 2011-04-22,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.3369, 1.3849, 15, 0
 ghin GHIN_USGS, 2012-04-06,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.6003, 0.6629, 15, 174715
 ghin GHIN_USGS, 2012-04-07,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.6003, 0.6629, 15, 0
 ghin GHIN_USGS, 2012-04-08,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.6003, 0.6629, 15, 0
 ghin GHIN_USGS, 2012-04-09,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.6003, 0.6629, 15, 0
 ghin GHIN_USGS, 2013-03-27,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8478, 0.9028, 15, 17115
 ghin GHIN_USGS, 2013-03-28,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8478, 0.9028, 15, 0
 ghin GHIN_USGS, 2013-03-29,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8478, 0.9028, 15, 0
 ghin GHIN_USGS, 2013-03-30,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8478, 0.9028, 15, 0
 ghin GHIN_USGS, 2013-03-31,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8478, 0.9028, 15, 0
 ghin GHIN_USGS, 2013-04-01,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8478, 0.9028, 15, 0
 ghin GHIN_USGS, 2013-04-02,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8478, 0.9028, 15, 0
 ghin GHIN_USGS, 2016-04-26,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14244,  NONE, 0.7833, 0.8399, 15, 0
 ghin GHIN_USGS, 2016-04-27,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14244,  NONE, 0.7833, 0.8399, 15, 0
 ghin GHIN_USGS, 2016-04-28,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14244,  NONE, 0.7833, 0.8399, 15, 0
 ghin GHIN_USGS, 2016-04-29,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14244,  NONE, 0.7833, 0.8399, 15, 0