For those looking for a clearer standard it's the International Terrestrial Reference System and Frame [0]. The better datums in use today are tied to a particu

For those looking for a clearer standard it's the International Terrestrial Reference System and Frame [0]. The better datums in use today are tied to a particular year (epoch) reference frame of this. For instance Australia's GDA2020 [1] is based on ITRF2014 at epoch 2020.0. It replaced GDA94 which was based on ITRF1992 at epoch 1994.0. The difference is around 1.8 metres [0] https://en.m.wikipedia.org/wiki/International_Terrestrial_Reference_System_and_Frame https://en.m.wikipedia.org/wiki/International_Terrestrial_Re... [1] https://www.ga.gov.au/scientific-topics/positioning-navigation/geodesy/datums-projections/gda2020 https://www.ga.gov.au/scientific-topics/positioning-navigati...