EPSG:10194 CNH22 Grid
Projected system (Lambert Conic Conformal (2SP)) in use: UK - Crewe to Holyhead. 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:10194 |
|---|---|
| Name | CNH22 Grid |
| Type | Projected system — Lambert Conic Conformal (2SP) |
| Area of use |
UK - Crewe to Holyhead United Kingdom (UK) - on or related to the rail route from Crewe via Chester to Holyhead. |
| Bounds | W -4,71° · S 53,02° · E -2,28° · N 53,46° |
| Countries | United Kingdom |
| Datum | CNH22 Intermediate Reference Frame |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:10191 — CNH22-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 false origin | 53.25 | degree |
| Longitude of false origin | -3.5 | degree |
| Latitude of 1st standard parallel | 53.1 | degree |
| Latitude of 2nd standard parallel | 53.4 | degree |
| Easting at false origin | 212548.8756 | metre |
| Northing at false origin | 495230.9254 | metre |
proj4 definition
+proj=lcc +lat_0=53.25 +lon_0=-3.5 +lat_1=53.1 +lat_2=53.4 +x_0=212548.8756 +y_0=495230.9254 +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:10194.
WKT (ESRI format, the .prj content)
PROJCS["CNH22_Grid",GEOGCS["GCS_CNH22-IRF",DATUM["CNH22_Intermediate_Reference_Frame",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",212548.8756],PARAMETER["False_Northing",495230.9254],PARAMETER["Central_Meridian",-3.5],PARAMETER["Standard_Parallel_1",53.1],PARAMETER["Standard_Parallel_2",53.4],PARAMETER["Latitude_Of_Origin",53.25],UNIT["Meter",1.0]]Other systems — United Kingdom
- EPSG:10175DoPw22-IRF
- EPSG:10183DoPw22 Grid
- EPSG:10185ShAb07-IRF
- EPSG:10188ShAb07 Grid
- EPSG:10191CNH22-IRF
- EPSG:10196CWS13-IRF
- EPSG:10199CWS13 Grid
- EPSG:10204DIBA15-IRF
- EPSG:10207DIBA15 Grid
- EPSG:10209GWPBS22-IRF
- EPSG:10212GWPBS22 Grid
- EPSG:10214GWWAB22-IRF
- EPSG:10217GWWAB22 Grid
- EPSG:10219GWWWA22-IRF
- EPSG:10222GWWWA22 Grid
- EPSG:10224MALS09-IRF
- EPSG:10227MALS09 Grid
- EPSG:10229OxWo08-IRF
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.