Convert coordinates from Camacupa 1948 (EPSG:4220) 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 10 transformations between Camacupa 1948 (EPSG:4220) 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) | -55.5 | metre |
| Y-axis translation(ty) | -348 | metre |
| Z-axis translation(tz) | -229.2 | metre |
Derived at station Djeno during coordination of platform PAL F2 in February 1992. Used by Elf for block 3 up to December 1992 then replaced by Camacupa 1948 to WGS 84 (7).
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -48 | metre |
| Y-axis translation(ty) | -345 | metre |
| Z-axis translation(tz) | -231 | metre |
Derived at platform PAL F2 in December 1992. For use in blocks 3, 7 and 17, replaced by Camacupa 1948 to WGS 84 (10) (code 1327).
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -48.6 | metre |
| Y-axis translation(ty) | -345.1 | metre |
| Z-axis translation(tz) | -230.8 | metre |
Derived at platform PAL F2 in December 1992. Used by Total for block 2 between December 1992 and 1994 then replaced by Camacupa 1948 to WGS 84 (10).
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -50.9 | metre |
| Y-axis translation(ty) | -347.6 | metre |
| Z-axis translation(tz) | -231 | metre |
Derived at platform PAL F2 in 1994 by Topnav using Doris.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -43 | metre |
| Y-axis translation(ty) | -337 | metre |
| Z-axis translation(tz) | -233 | metre |
Derived at Luanda observatory December 1992.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -42.01 | metre |
| Y-axis translation(ty) | -332.21 | metre |
| Z-axis translation(tz) | -229.75 | metre |
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -37.2 | metre |
| Y-axis translation(ty) | -370.6 | metre |
| Z-axis translation(tz) | -224 | 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 |
Replaced by Camacupa 1948 to WGS 84 (9). Used by Shell prior to 1994.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -41.8 | metre |
| Y-axis translation(ty) | -342.2 | metre |
| Z-axis translation(tz) | -228.2 | metre |
Mean of 123 Transit passes at station Cabo Ledo NE base in November 1990. Used by Elf for block 7 up to December 1992 then replaced by Camacupa 1948 to WGS 84 (7). Used by Total in block 8, ExxonMobil block 24, Western Geophysical for spec. data.
| 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 |
Derived by GPS on two Topnav DGPS reference stations at Djeno and Luanda. Replaces Camacupa 1948 to WGS 84 (3). In block 18 replaced by BP from 1999 by Camacupa 1948 to WGS 84 (10).
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | -40 | metre |
| Y-axis translation(ty) | -354 | metre |
| Z-axis translation(tz) | -224 | metre |
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4220", "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: 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: World (by country)
+proj=longlat +datum=WGS84 +no_defs +type=crsMore about EPSG:4326 →