EPSG:25000 Leigon / Ghana Metre Grid
Projected system (Transverse Mercator) in use: Ghana. The full definition below, and conversion in one click.
| Code | EPSG:25000 |
|---|---|
| Name | Leigon / Ghana Metre Grid |
| Type | Projected system — Transverse Mercator |
| Area of use |
Ghana Ghana - onshore and offshore. |
| Bounds | W -3,79° · S 1,40° · E 2,10° · N 11,16° |
| Countries | Ghana |
| Datum | Leigon |
| Ellipsoid | Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465 |
| Base geographic system | EPSG:4250 — Leigon |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | Leigon to WGS 84 (1) (EPSG:1159) — accuracy 5 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 4.666666666666667 | degree |
| Longitude of natural origin | -1 | degree |
| Scale factor at natural origin | 0.99975 | unity |
| False easting | 274319.51 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=tmerc +lat_0=4.66666666666667 +lon_0=-1 +k=0.99975 +x_0=274319.51 +y_0=0 +a=6378249.145 +rf=293.465 +units=m +towgs84=-130,29,364 +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:25000.
WKT (ESRI format, the .prj content)
PROJCS["Ghana_Metre_Grid",GEOGCS["GCS_Leigon",DATUM["D_Leigon",SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",274319.51],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-1.0],PARAMETER["Scale_Factor",0.99975],PARAMETER["Latitude_Of_Origin",4.66666666666667],UNIT["Meter",1.0]]Other systems — Ghana
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.