Convert WGS 84 (G873) to WGS 84 (G1150)

Convert coordinates from WGS 84 (G873) (EPSG:7658) to WGS 84 (G1150) (EPSG:7660) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (x, y)

Output (x, y)

Direct link to this transformation: epsgtransform.com/transform/epsg-7658-to-epsg-7660

Official EPSG transformation from WGS 84 (G873) to WGS 84 (G1150)

The EPSG Geodetic Parameter Dataset defines 1 transformation between WGS 84 (G873) (EPSG:7658) and WGS 84 (G1150) (EPSG:7660). Its parameters, accuracy and area of use are listed below.

WGS 84 (G873) to WGS 84 (G1150) (1)

EPSG:9962±0.03 m

Method:: Time-dependent Coordinate Frame rotation (geocen)
Area of use:: World
Scope:: Spatial referencing.

Parameter	Value	Unit
X-axis translation(tx)	1.1	millimetre
Y-axis translation(ty)	-4.7	millimetre
Z-axis translation(tz)	22	millimetre
X-axis rotation(rx)	0	milliarc-second
Y-axis rotation(ry)	0	milliarc-second
Z-axis rotation(rz)	0.16	milliarc-second
Scale difference(ds)	1.45	parts per billion
rate tx	0	millimetres per year
rate ty	0.6	millimetres per year
rate tz	1.4	millimetres per year
rate rx	0	milliarc-seconds per year
rate ry	0	milliarc-seconds per year
rate rz	0.02	milliarc-seconds per year
rate ds	-0.01	parts per billion per year
epoch	2005	year

Scale difference in ppb where 1/billion = 1E-9 or nm/m. Derived via ITRF94 through ITRF2000. May be approximated to 0.2m using 7-parameter CF method 1032 with parameters for epoch 1999.50 of tX=1.1mm tY=-8.0mm tZ=14.3mm rX=0 rY=0 rZ=0.05mas dS=1.505ppb.

Convert EPSG:7658 to EPSG:7660 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:7658", "EPSG:7660", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:7658 — WGS 84 (G873)

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World

+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs

More about EPSG:7658 →

Target: EPSG:7660 — WGS 84 (G1150)

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World

+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs

More about EPSG:7660 →

Frequently asked questions

How accurate is converting WGS 84 (G873) to WGS 84 (G1150)?: The most accurate official EPSG transformation between these systems is accurate to about ±0.03 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation in a desktop GIS.
Does my data leave the browser when I use this converter?: No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.

Need the reverse? Convert EPSG:7660 to EPSG:7658 →