Convert coordinates from IGCB 1955 (EPSG:4701) 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 IGCB 1955 (EPSG:4701) and WGS 84 (EPSG:4326). Its parameters, accuracy and area of use are listed below.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -79.9 | metre |
| Y-axis translation(ty) | -158 | metre |
| Z-axis translation(tz) | -168.9 | metre |
Derived by Topnav in 1991 at station TSH 85.
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4701", "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: Congo DR (Zaire) - Bas Congo
+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-79.9,-158,-168.9,0,0,0,0 +no_defs +type=crsMore about EPSG:4701 →
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 →