Convert coordinates from Camacupa 1948 (EPSG:4220) to RSAO13 (EPSG:8699) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 4 transformations between Camacupa 1948 (EPSG:4220) and RSAO13 (EPSG:8699). Each applies to a specific area — pick the one whose area of use covers your data.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -48 | metre |
| Y-axis translation(ty) | -345 | metre |
| Z-axis translation(tz) | -231 | metre |
Parameter values taken from Camacupa 1948 to WGS 84 (7) (code 1324) assuming that RSAO13 is coincident with WGS 84 within the accuracy of the transformation.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -50.9 | metre |
| Y-axis translation(ty) | -347.6 | metre |
| Z-axis translation(tz) | -231 | metre |
Parameter values taken from Camacupa 1948 to WGS 84 (10) (code 1327) assuming that RSAO13 is coincident with WGS 84 within the accuracy of the transformation.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -43 | metre |
| Y-axis translation(ty) | -337 | metre |
| Z-axis translation(tz) | -233 | metre |
Parameter values taken from Camacupa 1948 to WGS 84 (6) (code 1323) assuming that RSAO13 is coincident with WGS 84 within the accuracy of the transformation. Equivalent to concatenation of EPSG:1323 and EPSG:8819.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -41.057 | metre |
| Y-axis translation(ty) | -374.564 | metre |
| Z-axis translation(tz) | -226.287 | metre |
| X-axis rotation(rx) | 0 | arc-second |
| Y-axis rotation(ry) | 0 | arc-second |
| Z-axis rotation(rz) | 0.554 | arc-second |
| Scale difference(ds) | 0.219 | parts per million |
Parameter values taken from Camacupa 1948 to WGS 84 (9) (code 1326) assuming that RSAO13 is coincident with WGS 84 within the accuracy of the transformation. Equivalent to concatenation of EPSG:1326 and EPSG:8819.
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4220", "EPSG:8699", 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: Angola - Angola proper
+proj=longlat +a=6378249.145 +rf=293.465 +no_defs +type=crsMore about EPSG:4220 →
geographic system using latitude and longitude on an ellipsoid · Area of use: Angola
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crsMore about EPSG:8699 →