Geodetic Reference System of Ireland 

Collection by Stefan A. Voser		 MapRef 
MapRef

22. Sept. 1998 update  
Country  Name  Central Point  Spheroid  Parameters  Description  Source 
dx [m]  dy [m]  dz [m]  rx ["]  ry ["]  rz ["]  ds [ppm] 
National 
Ireland  Irish National Datum 1965  Slieve Donard  Airy Modified  506 -122 611 Datum -> WGS84
Ireland Irish National Datum 1975 
"Mapping Adjustment"		 Slieve Donard Airy Modified
Ireland  Irish County datums  Airy 
MapRef
© by Stefan A. Voser, 1998 
 
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