Date, Component, Network, Datatype, Method 2010-09-03, N, CentralUS, itrf2008, automatic 2013-09-07, N, CentralUS, itrf2008, manual 2016-12-29, N, CentralUS, itrf2008, manual 2013-09-07, E, CentralUS, itrf2008, manual 2016-12-29, E, CentralUS, itrf2008, manual 2013-09-07, U, CentralUS, itrf2008, manual 2016-12-29, U, CentralUS, itrf2008, manual 2020-08-11, U, CentralUS, itrf2008, automatic