Geocentric translations (geog2D domain)
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.
Instituto Geografico Portugues; 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