Convert coordinates from Pulkovo 1942 (EPSG:4284) to EST92 (EPSG:4133) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 1 transformation between Pulkovo 1942 (EPSG:4284) and EST92 (EPSG:4133). Its parameters, accuracy and area of use are listed below.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | 21.53219 | metre |
| Y-axis translation(ty) | -97.00027 | metre |
| Z-axis translation(tz) | -60.74046 | metre |
| X-axis rotation(rx) | -0.99548 | arc-second |
| Y-axis rotation(ry) | -0.58147 | arc-second |
| Z-axis rotation(rz) | -0.2418 | arc-second |
| Scale difference(ds) | -4.5981 | parts per million |
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:4284", "EPSG:4133", 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: Europe - FSU onshore
+proj=longlat +ellps=krass +towgs84=25,-141,-78.5,0,0.35,0.736,0 +no_defs +type=crsMore about EPSG:4284 →
geographic system using latitude and longitude on an ellipsoid · Area of use: Estonia - onshore
+proj=longlat +ellps=GRS80 +towgs84=0.055,-0.541,-0.185,0.0183,-0.0003,-0.007,-0.014 +no_defs +type=crsMore about EPSG:4133 →