EPSG:10471 COV23 Grid
Projected system (Transverse Mercator) in use: UK - Coventry. The full definition below, and conversion in one click.
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.
| Code | EPSG:10471 |
|---|---|
| Name | COV23 Grid |
| Type | Projected system — Transverse Mercator |
| Area of use |
UK - Coventry United Kingdom (UK) - in and around the area of Coventry city centre and the route to Birmingham airport. |
| Bounds | W -1,85° · S 52,30° · E -1,30° · N 52,50° |
| Countries | United Kingdom |
| Datum | COV23 Intermediate Reference Frame |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:10468 — COV23-IRF |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Engineering survey and topographic mapping for railway applications. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 52.4 | degree |
| Longitude of natural origin | -1.55 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 116887.9989 | metre |
| False northing | 102194.9369 | metre |
proj4 definition
+proj=tmerc +lat_0=52.4 +lon_0=-1.55 +k=1 +x_0=116887.9989 +y_0=102194.9369 +ellps=GRS80 +units=m +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:10471.
WKT (ESRI format, the .prj content)
PROJCS["COV23_Grid",GEOGCS["GCS_COV23-IRF",DATUM["COV23_Intermediate_Reference_Frame",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",116887.9989],PARAMETER["False_Northing",102194.9369],PARAMETER["Central_Meridian",-1.55],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",52.4],UNIT["Meter",1.0]]Other systems — United Kingdom
- EPSG:10217GWWAB22 Grid
- EPSG:10219GWWWA22-IRF
- EPSG:10222GWWWA22 Grid
- EPSG:10224MALS09-IRF
- EPSG:10227MALS09 Grid
- EPSG:10229OxWo08-IRF
- EPSG:10235OxWo08 Grid
- EPSG:10237SYC20-IRF
- EPSG:10240SYC20 Grid
- EPSG:10272SMITB20-IRF
- EPSG:10275SMITB20 Grid
- EPSG:10277RBEPP12-IRF
- EPSG:10280RBEPP12 Grid
- EPSG:10468COV23-IRF
- EPSG:10623ECML14-IRF
- EPSG:10626ECML14 Grid
- EPSG:10628WC05-IRF
- EPSG:10632WC05 Grid
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.