Date, Component, Network, Datatype, Method 2013-09-08, N, CentralUS, itrf2008, manual 2019-03-20, N, CentralUS, itrf2008, manual 2013-09-08, E, CentralUS, itrf2008, manual 2019-03-20, E, CentralUS, itrf2008, manual 2013-09-08, U, CentralUS, itrf2008, manual 2019-03-20, U, CentralUS, itrf2008, manual