EPSG:CODE

ITRF89 to ITRF90 (1)

EPSG:4911 → EPSG:4912

Coordinate Reference Systems

Source CRS
EPSG:4911
ITRF89
Geocentric
Target CRS
EPSG:4912
ITRF90
Geocentric

Transform Coordinates

Remarks

Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Superseded by parameter values derived from transformations to ITRF2020 (change in scale difference), see EPSG:10140.

Frequently Asked Questions

How do I convert ITRF89 to ITRF90 coordinates?

Use the coordinate transformation tool above to convert ITRF89 (EPSG:4911) to ITRF90 (EPSG:4912). Enter your source coordinates and click Transform. This uses the Position Vector transformation (geocentric domain) method with 0.01m accuracy.

How do I transform ITRF89 to ITRF90 using Proj4js?

Use proj4.defs to define both EPSG:4911 and EPSG:4912, then call proj4(source, target, [x, y]) to convert coordinates programmatically.

What is the accuracy of the ITRF89 to ITRF90 transformation?

This transformation (EPSG:9021) has an accuracy of 0.01m using the Position Vector transformation (geocentric domain) method. Area of use: World.