Date, Component, Network, Datatype, Method 2003-12-29, N, CentralUS, itrf2008, manual 2016-03-18, N, CentralUS, itrf2008, manual 2003-12-29, E, CentralUS, itrf2008, manual 2016-03-18, E, CentralUS, itrf2008, manual 2003-12-29, U, CentralUS, itrf2008, manual 2016-03-18, U, CentralUS, itrf2008, manual