EPSG:7881 St. Helena Tritan
Geographic system in latitude and longitude, in use: St Helena - St Helena Island. Datum, ellipsoid and transformation to WGS 84 below.
| Code | EPSG:7881 |
|---|---|
| Name | St. Helena Tritan |
| Type | Geographic system |
| Area of use |
St Helena - St Helena Island St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore. |
| Bounds | W -5,85° · S -16,08° · E -5,59° · N -15,85° |
| Countries | St. Helena |
| Datum | St. Helena Tritan |
| Ellipsoid | WGS 84 a = 6378137 m · 1/f = 298.257223563 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | St. Helena Tritan to WGS 84 (1) (EPSG:7898) — accuracy 1 m |
| Scope | Horizontal component of 3D system. |
proj4 definition
+proj=longlat +ellps=WGS84 +towgs84=-0.077,0.079,0.086 +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:7881.
WKT (ESRI format, the .prj content)
GEOGCS["St_Helena_Tritan",DATUM["St_Helena_Tritan",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — St. Helena
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.