benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 york York_2004_CalTrans, 2004-07-14,  GS ,  CalTrans ,  TRIMBLE 5700,  0220308761,  NP,  TRM41249.00,  12422923,  NONE, 2, 2.0514, 15, 185230
 york York_2004_CalTrans, 2007-10-19,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 0.5395, 0.6048, 30, 0
 york York_2004_CalTrans, 2007-10-20,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 0.5395, 0.6048, 30, 0
 york York_2004_CalTrans, 2007-10-21,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 0.5395, 0.6048, 30, 0
 york York_2004_CalTrans, 2008-10-07,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14333,  NONE, 0.8448, 0.8999, 30, 0
 york York_2004_CalTrans, 2008-10-08,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14333,  NONE, 0.8448, 0.8999, 30, 0
 york York_2004_CalTrans, 2010-05-02,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR519993702,  NONE, 1.1985, 1.2479, 15, 0
 york York_2004_CalTrans, 2010-05-03,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR519993702,  NONE, 1.1985, 1.2479, 15, 0
 york York_2004_CalTrans, 2010-05-04,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR519993702,  NONE, 1.1985, 1.2479, 15, 0
 york York_2004_CalTrans, 2015-03-23,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022605,  NONE, 0.8141, 0.8699, 15, 183945
 york York_2004_CalTrans, 2015-03-24,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022605,  NONE, 0.8141, 0.8699, 15, 0
 york York_2004_CalTrans, 2015-03-25,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022605,  NONE, 0.8141, 0.8699, 15, 0
 york York_2004_CalTrans, 2015-03-26,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022605,  NONE, 0.8141, 0.8699, 15, 0
 york York_2004_CalTrans, 2015-03-27,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022605,  NONE, 0.8141, 0.8699, 15, 0