Coordinate Reference Systems
Remarks
Parameter values consistent with the OGP Affine parametric transformation method derived by OGP from the published Helmert 2D parameter values. May be used for transformations to WGS 84 - see tfm code 15861.
Frequently Asked Questions
What is the accuracy of the IGN Astro 1960 / UTM zone 28N to Mauritania 1999 / UTM zone 28N transformation?
This transformation (EPSG:15857) has an accuracy of 40m using the Affine parametric transformation method. Area of use: Mauritania - west of 12°W onshore.