Coordinate Reference Systems
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Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Superseded by parameter values derived from transformations to ITRF2020 (change in scale difference), see EPSG:10143.
Frequently Asked Questions
What is the accuracy of the ITRF93 to ITRF94 transformation?
This transformation (EPSG:9025) has an accuracy of 0.01m using the Time-dependent Position Vector tfm (geocentric) method. Area of use: World.