GDA2020 Technical Manual (V 1.2)

The technical information provided here:

  • defines GDA94 and GDA2020;
  • provides descriptions, transformation parameters and examples to assist with datum transformations between GDA94, GDA2020, realisations of the International Terrestrial Reference Frame (ITRF) and historic Australian datums;
  • provides descriptions and examples to assist with coordinate conversions between Earth-centred Cartesian, geographic and map projected coordinates;
  • provides descriptions and examples of coordinate computations; and
  • defines the Australian Height Datum (AHD) and AUSGeoid models, and describes how to convert between ellipsoidal heights and Australian Height Datum heights.