benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hrst Hearst_unstamped_USG, 2007-08-18,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 0.5595, 0.6239, 30, 0
 hrst Hearst_unstamped_USG, 2007-08-19,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 0.5595, 0.6239, 30, 0
 hrst Hearst_unstamped_USG, 2007-08-20,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 0.5595, 0.6239, 30, 0
 hrst Hearst_unstamped_USG, 2008-07-09,  JMS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII 1L00,  ASH700936D_M,  CR14341,  NONE, 0.7802, 0.8368, 30, 30
 hrst Hearst_unstamped_USG, 2008-07-10,  JMS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII 1L00,  ASH700936D_M,  CR14341,  NONE, 0.7802, 0.8368, 30, 30
 hrst Hearst_unstamped_USG, 2009-08-11,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 0.7453, 0.8029, 30, 184230
 hrst Hearst_unstamped_USG, 2009-08-12,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 0.7453, 0.8029, 30, 0
 hrst Hearst_unstamped_USG, 2009-08-13,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 0.7453, 0.8029, 30, 0
 hrst Hearst_unstamped_USG, 2010-06-15,  JMS ,  USGS ,  ASHTECH,  04579 ,  Z-XII 1L001,  ASH701945E_M,  CR520031626,  NONE, 0.7422, 0.7999, 15, 17120
 hrst Hearst_unstamped_USG, 2010-06-16,  JMS ,  USGS ,  ASHTECH,  04579 ,  Z-XII 1L001,  ASH701945E_M,  CR520031626,  NONE, 0.7422, 0.7999, 15, 15
 hrst Hearst_unstamped_USG, 2010-06-17,  JMS ,  USGS ,  ASHTECH,  04579 ,  Z-XII 1L001,  ASH701945E_M,  CR520031626,  NONE, 0.7422, 0.7999, 15, 15
 hrst Hearst_unstamped_USG, 2013-04-23,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 0.9417, 0.9948, 15, 0
 hrst Hearst_unstamped_USG, 2013-04-24,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 0.9417, 0.9948, 15, 0