Before revision: Comparison of ITM, Irish Grid and UTM ITM Irish Grid UTM Reference ellipsoid: GRS80 Airy Modified GRS80 Central Meridian: 8° West 8° West 9° West Scale on Central Meridian: 0.999 820 1.000 035 0.999 600 True Origin: 53° 30' North; 8° West 53° 30' North; 8° West 0° 00' North; 9° West False Origin: 600,000m West; 750,000m South 200,000m West; 250,000m South 500,000m West; 0m South Vertical Datum: Malin Head Malin Head ?
After revision: 29Comparison of ITM, Irish Grid and UTM ITM Irish Grid UTM Reference ellipsoid: GRS80 Airy Modified GRS80 Central Meridian: 8° West 8° West 9° West Scale on Central Meridian: 0.999 820 1.000 035 0.999 600 True Origin: 53° 30' North; 8° West 53° 30' North; 8° West 0° 00' North; 9° West False Origin: 600,000m West; 750,000m South 200,000m West; 250,000m South 500,000m West; 0m South Vertical Datum: Malin Head Malin Head ?