benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 t2sr T2SR27ES8S17_1996_Ca, 2006-07-08,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.4844, 0.5528, 30, 16210
 t2sr T2SR27ES8S17_1996_Ca, 2006-07-09,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.4844, 0.5528, 30, 0
 t2sr T2SR27ES8S17_1996_Ca, 2006-07-10,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.4844, 0.5528, 30, 0
 t2sr T2SR27ES8S17_1996_Ca, 2006-07-11,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.4844, 0.5528, 30, 0
 t2sr T2SR27ES8S17_1996_Ca, 2007-07-21,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 0.4146, 0.4878, 30, 0
 t2sr T2SR27ES8S17_1996_Ca, 2007-07-22,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 0.4146, 0.4878, 30, 0
 t2sr T2SR27ES8S17_1996_Ca, 2007-07-23,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 0.4146, 0.4878, 30, 0