Coordinate Reference Systems
Transform Coordinates
Remarks
Derived at 34 points in May 2009. Residuals at 25 test points within 0.5m horizontal and 2m vertical. Info source also provides a Position Vector tfm of similar accuracy. See codes 5022 and 5023 for preferred tfms for islands of Porto Santo and Maderia.
Frequently Asked Questions
How do I convert Porto Santo 1995 to PTRA08 coordinates?
Use the coordinate transformation tool above to convert Porto Santo 1995 (EPSG:4663) to PTRA08 (EPSG:5013). Enter your source coordinates and click Transform. This uses the Geocentric translations (geog2D domain) method with 2m accuracy.
How do I transform Porto Santo 1995 to PTRA08 using Proj4js?
Use proj4.defs to define both EPSG:4663 and EPSG:5013, then call proj4(source, target, [x, y]) to convert coordinates programmatically.
What is the accuracy of the Porto Santo 1995 to PTRA08 transformation?
This transformation (EPSG:5021) has an accuracy of 2m using the Geocentric translations (geog2D domain) method. Area of use: Portugal - Madeira archipelago onshore.