Date, Component, Network, Datatype, Method 2012-02-01, N, NCalifornia, itrf2008, automatic 2012-12-01, N, NCalifornia, itrf2008, automatic 2013-01-25, N, NCalifornia, itrf2008, automatic 2014-02-09, N, NCalifornia, itrf2008, automatic 2018-03-12, N, NCalifornia, itrf2008, automatic 2018-03-14, N, NCalifornia, itrf2008, automatic 2018-03-15, N, NCalifornia, itrf2008, automatic