benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 isle ISLE_06_USGS, 2006-11-18,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945E_M,  CR520031626,  NONE, 0.4972, 0.5648, 30, 0
 isle ISLE_06_USGS, 2006-11-19,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945E_M,  CR520031626,  NONE, 0.4972, 0.5648, 30, 0
 isle ISLE_06_USGS, 2006-11-20,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945E_M,  CR520031626,  NONE, 0.4972, 0.5648, 30, 0
 isle ISLE_06_USGS, 2008-07-29,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.8581, 0.9129, 30, 181830
 isle ISLE_06_USGS, 2008-07-30,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.8581, 0.9129, 30, 0
 isle ISLE_06_USGS, 2008-07-31,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.8581, 0.9129, 30, 0
 isle ISLE_06_USGS, 2008-08-01,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR519993706,  NONE, 0.8581, 0.9129, 30, 0
 isle ISLE_06_USGS, 2009-08-14,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.6564, 0.7168, 30, 0
 isle ISLE_06_USGS, 2009-08-15,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.6564, 0.7168, 30, 0
 isle ISLE_06_USGS, 2009-08-16,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.6564, 0.7168, 30, 0
 isle ISLE_06_USGS, 2010-07-29,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.8448, 0.8999, 15, 182815
 isle ISLE_06_USGS, 2010-07-30,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.8448, 0.8999, 15, 0
 isle ISLE_06_USGS, 2010-07-31,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.8448, 0.8999, 15, 0
 isle ISLE_06_USGS, 2010-08-01,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.8448, 0.8999, 15, 0