Convert coordinates from WGS 84 (G1762) (EPSG:7664) to WGS 84 (G2139) (EPSG:9753) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.
The EPSG Geodetic Parameter Dataset defines 1 transformation between WGS 84 (G1762) (EPSG:7664) and WGS 84 (G2139) (EPSG:9753). Its parameters, accuracy and area of use are listed below.
| Parameter | Value | Unit |
|---|---|---|
| X-axis translation(tx) | 0.0058 | metre |
| Y-axis translation(ty) | -0.0064 | metre |
| Z-axis translation(tz) | 0.007 | metre |
| X-axis rotation(rx) | 0.08 | milliarc-second |
| Y-axis rotation(ry) | 0.04 | milliarc-second |
| Z-axis rotation(rz) | 0.12 | milliarc-second |
| Scale difference(ds) | -4.4 | parts per billion |
Scale difference in ppb where 1/billion = 1E-9 or nm/m.
The same transformation with common GIS tools and libraries:
from pyproj import Transformer
transformer = Transformer.from_crs("EPSG:7664", "EPSG:9753", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World
+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crsMore about EPSG:7664 →
geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World
+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crsMore about EPSG:9753 →