Convert coordinates from Chua (EPSG:4224) 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 3 transformations between Chua (EPSG:4224) and WGS 84 (EPSG:4326). Each applies to a specific area — pick the one whose area of use covers your data.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -143.87 | metre |
| Y-axis translation(ty) | 243.37 | metre |
| Z-axis translation(tz) | -33.52 | metre |
Mandatory for SICAD use until 2005. Replaced by Chua to SIRGAS 2000 (tfm code 4069).
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -144.35 | metre |
| Y-axis translation(ty) | 242.88 | metre |
| Z-axis translation(tz) | -33.2 | metre |
Parameter values from Chua to SIRGAS 2000 (1) (tfm code 4069) assuming that within the tfm accuracy SIRGAS 2000 is equivalent to WGS 84.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -134 | metre |
| Y-axis translation(ty) | 229 | metre |
| Z-axis translation(tz) | -29 | metre |
Derived at 6 stations. Accuracy 6m, 9m and 5m in X, Y and Z axes.
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4224", "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: South America - Brazil - south of 18°S and west of 54°W + DF; N Paraguay
+proj=longlat +ellps=intl +no_defs +type=crsMore about EPSG:4224 →
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 →