EPSG:4676 Vientiane 1982
Geographic system in latitude and longitude, in use: Laos. 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:4676 |
|---|---|
| Name | Vientiane 1982 |
| Type | Geographic system |
| Area of use | Laos |
| Bounds | W 100,09° · S 13,92° · E 107,64° · N 22,50° |
| Countries | Laos |
| Datum | Vientiane 1982 |
| Ellipsoid | Krassowsky 1940 a = 6378245 m · 1/f = 298.3 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Topographic mapping (medium and small scale). |
proj4 definition
+proj=longlat +ellps=krass +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:4676.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Vientiane_1982",DATUM["D_Vientiane_1982",SPHEROID["Krasovsky_1940",6378245.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — Laos
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.