Convert IGS97 to IGS00

Convert coordinates from IGS97 (EPSG:9001) to IGS00 (EPSG:9004) — 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-9001-to-epsg-9004

Official EPSG transformation from IGS97 to IGS00

The EPSG Geodetic Parameter Dataset defines 1 transformation between IGS97 (EPSG:9001) and IGS00 (EPSG:9004). Its parameters, accuracy and area of use are listed below.

IGS97 to IGS00 (1)

EPSG:9033±0.007 m

Method:: Time-dependent Position Vector tfm (geocentric)
Area of use:: World
Scope:: Geodesy.

Parameter	Value	Unit
X-axis translation(tx)	-6	millimetre
Y-axis translation(ty)	-5.6	millimetre
Z-axis translation(tz)	20.1	millimetre
X-axis rotation(rx)	-0.04	milliarc-second
Y-axis rotation(ry)	0.001	milliarc-second
Z-axis rotation(rz)	0.043	milliarc-second
Scale difference(ds)	-1.403	parts per billion
rate tx	0.4	millimetres per year
rate ty	0.8	millimetres per year
rate tz	1.5	millimetres per year
rate rx	0.004	milliarc-seconds per year
rate ry	-0.001	milliarc-seconds per year
rate rz	-0.003	milliarc-seconds per year
rate ds	-0.012	parts per billion per year
epoch	1998	year

Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m.

Convert EPSG:9001 to EPSG:9004 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:9001", "EPSG:9004", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:9001 — IGS97

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

+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs

More about EPSG:9001 →

Target: EPSG:9004 — IGS00

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

+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs

More about EPSG:9004 →

Frequently asked questions

How accurate is converting IGS97 to IGS00?: The most accurate official EPSG transformation between these systems is accurate to about ±0.007 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:9004 to EPSG:9001 →