EPSG:7883 St. Helena Tritan / UTM zone 30S
Projected system (Transverse Mercator) in use: St Helena - St Helena Island. The full definition below, and conversion in one click.
| Code | EPSG:7883 |
|---|---|
| Name | St. Helena Tritan / UTM zone 30S |
| Type | Projected system — Transverse Mercator |
| 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 |
| Base geographic system | EPSG:7881 — St. Helena Tritan |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | St. Helena Tritan to WGS 84 (1) (EPSG:7898) — accuracy 1 m |
| Scope | Engineering survey prior to 2016 including Airport and Ruperts Wharfe construction. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -3 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 10000000 | metre |
proj4 definition
+proj=utm +zone=30 +south +ellps=WGS84 +units=m +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:7883.
WKT (ESRI format, the .prj content)
PROJCS["St_Helena_Tritan_UTM_zone_30S",GEOGCS["St_Helena_Tritan",DATUM["St_Helena_Tritan",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",-3.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — St. Helena
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.