EPSG systems

EPSG:4173 IRENET95

Geographic system in latitude and longitude, in use: Europe - Ireland (Republic and Ulster) - onshore. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4173
NameIRENET95
TypeGeographic system
Area of use Europe - Ireland (Republic and Ulster) - onshore
Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
Bounds W -10,56° · S 51,39° · E -5,34° · N 55,43°
Countries Ireland, United Kingdom
DatumIRENET95
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Unit degree (Lat north, Lon east)
Transformation to WGS 84 IRENET95 to WGS 84 (1) (EPSG:1678) — accuracy 1 m
ScopeHorizontal component of 3D system.

proj4 definition

+proj=longlat +ellps=GRS80 +towgs84=0,0,0 +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:4173.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_IRENET95",DATUM["D_IRENET95",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Ireland

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