Transformation fro ED50 TM 0 to ED50 UTM31N

Discussion created by rmyerstaqa on Oct 8, 2013
Latest reply on Oct 15, 2013 by MKennedy-esristaff

I have recently been tasked with understanding how different pieces of software have managed to give variations on the x value when converted between the above CRS. The ED50 TM 0 CRS was customized by an oil and gas operator specifically for the North sea.

The only difference between the two projections are the central Meridian. I was wondering what sort of error I should expect transforming between the two and how ArcGIS performs the transformation?