Convert coordinates from ST71 Belep (EPSG:4643) to WGS 84 (EPSG:4326) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 1 transformation between ST71 Belep (EPSG:4643) and WGS 84 (EPSG:4326). Its parameters, accuracy and area of use are listed below.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -480.26 | metre |
| Y-axis translation(ty) | -438.32 | metre |
| Z-axis translation(tz) | -643.429 | metre |
| X-axis rotation(rx) | 16.3119 | arc-second |
| Y-axis rotation(ry) | 20.1721 | arc-second |
| Z-axis rotation(rz) | -4.0349 | arc-second |
| Scale difference(ds) | -111.7002 | parts per million |
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4643", "EPSG:4326", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)geographic system using latitude and longitude on an ellipsoid · Area of use: New Caledonia - Belep
+proj=longlat +ellps=intl +towgs84=-480.26,-438.32,-643.429,16.3119,20.1721,-4.0349,-111.7002 +no_defs +type=crsMore about EPSG:4643 →
geographic system using latitude and longitude on an ellipsoid · Area of use: World (by country)
+proj=longlat +datum=WGS84 +no_defs +type=crsMore about EPSG:4326 →