Geocentric translations (geog2D domain)
Derived at 14 points in May 2009. Residuals at 6 test points within 0.1m horizontal and 0.2m vertical. Info source also provides a 7-parameter Position Vector transformation of similar accuracy.
Instituto Geografico Portuguese; http://www.igeo.pt
2010-03-30
Geodesy.
See CRS code 4663 for recommended coordinate axis representation for the human interface.
Portugal - Madeira, Porto Santo and Desertas islands - onshore.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg