Convert coordinates from Corrego Alegre 1970-72 (EPSG:4225) to SIRGAS 2000 (EPSG:4674) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 2 transformations between Corrego Alegre 1970-72 (EPSG:4225) and SIRGAS 2000 (EPSG:4674). Each applies to a specific area — pick the one whose area of use covers your data.
Grid file: CA7072_003.gsb
May be used as transformation between Corrego Alegre 1970-72 and WGS 84 - see tfm code 5541.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -206.05 | metre |
| Y-axis translation(ty) | 168.28 | metre |
| Z-axis translation(tz) | -3.82 | metre |
Formed by concatenation of tfms codes 6191 and 15485. May be used as transformation between Corrego Alegre 1970-72 and WGS 84 - see tfm code 6194. Used by Petrobras and ANP from February 2005.
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4225", "EPSG:4674", 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: Brazil - Corrego Alegre 1970-1972
+proj=longlat +ellps=intl +no_defs +type=crsMore about EPSG:4225 →
geographic system using latitude and longitude on an ellipsoid · Area of use: Latin America - SIRGAS 2000 by country
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:4674 →