Geocentric translations (geog2D domain)
Derived at 18 points in May 2009. Residuals at 15 test points within 0.1m horizontal and 0.2m vertical. Info source also provides a Position Vector tfm of similar accuracy.
Instituto Geografico Portugues; http://www.igeo.pt
2010-03-31
Geodesy.
See CRS code 4182 for recommended coordinate axis representation for the human interface.
Portugal - western Azores onshore - Flores, Corvo.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg