EPSG:4823 Sao Tome
Geographic system in latitude and longitude, in use: Sao Tome and Principe - onshore - Sao Tome. Datum, ellipsoid and transformation to WGS 84 below.
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:4823 |
|---|---|
| Name | Sao Tome |
| Type | Geographic system |
| Area of use | Sao Tome and Principe - onshore - Sao Tome |
| Bounds | W 6,41° · S -0,04° · E 6,82° · N 0,46° |
| Countries | São Tomé & Príncipe |
| Datum | Sao Tome |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +ellps=intl +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:4823.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Sao_Tome",DATUM["D_Sao_Tome",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — São Tomé & Príncipe
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.