EPSG systems

EPSG:9309 ATRF2014

Geographic system in latitude and longitude, in use: Australia - GDA. Datum, ellipsoid and transformation to WGS 84 below.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

System record
CodeEPSG:9309
NameATRF2014
TypeGeographic system
Area of use Australia - GDA
Australia including Lord Howe Island, Macquarie Island, Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Norfolk Island. All onshore and offshore.
Bounds W 93,41° · S -60,55° · E 173,34° · N -8,47°
Countries Australia
DatumAustralian Terrestrial Reference Frame 2014
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Unit degree (Lat north, Lon east)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeLocation-based services, Intelligent Transport Services, navigation, positioning.

proj4 definition

+proj=longlat +ellps=GRS80 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:9309.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_ATRF2014",DATUM["Australian_Terrestrial_Reference_Frame_2014",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Australia

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.