benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 swws SweetwaterSummit_P120, 1994-06-14,  RGC ,   ,  ASHTECH LM-XII3,  213,  6M,  ASH700228D,  297,  NONE, 1.243, 1.2919, 30, 18330
 swws SweetwaterSummit_P120, 1994-06-16,  SPS ,   ,  ASHTECH LM-XII3,  213,  6M,  ASH700228D,  297,  NONE, 1.245, 1.2939, 30, 18230
 swws SWWS_stmpd_P120_1934, 2005-05-20,  CHS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.1894, 1.2389, 30, 1580
 swws SWWS_stmpd_P120_1934, 2005-05-25,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 1.1342, 1.1844, 30, 15340
 swws SWWS_stmpd_P120_1934, 2009-11-03,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5067, 0.5738, 30, 172945
 swws SWWS_stmpd_P120_1934, 2009-11-04,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5067, 0.5738, 30, 0
 swws SWWS_stmpd_P120_1934, 2017-06-17,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.5.1,  ASH700936D_M,  CR14329,  NONE, 0.6232, 0.6849, 15, 163015
 swws SWWS_stmpd_P120_1934, 2017-06-18,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.5.1,  ASH700936D_M,  CR14329,  NONE, 0.6232, 0.6849, 15, 0