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Datum: Geodetic Datum of 1965
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Geodetic Datum used in Europe - Ireland (Republic and Ulster) - onshore

Geodetic Datum of 1965 is a geodetic datum first defined in 1975-01-01 and is suitable for use in Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.. Geodetic Datum of 1965 references the Airy Modified 1849 ellipsoid and the Greenwich prime meridian. Geodetic Datum of 1965 origin is Adjusted to best mean fit 9 stations of the OSNI 1952 primary adjustment in Northern Ireland plus the 1965 values of 3 stations in the Republic of Ireland. Geodetic Datum of 1965 is a geodetic datum for Geodetic survey, topographic mapping and engineering survey. It was defined by information from "The Irish Grid - A Description of the Co-ordinate Reference System" published by Ordnance Survey of Ireland, Dublin and Ordnance Survey of Northern Ireland, Belfast. Differences from the 1965 adjustment (datum code 6299) are: average difference in Eastings 0.092m; average difference in Northings 0.108m; maximum vector difference 0.548m.

Geodetic Datum of 1965Open
Datum Details
Datum Name:Geodetic Datum of 1965
Code:6300
Area Of Use: Europe - Ireland (Republic and Ulster) - onshoreOpen
Scope:Geodetic survey, topographic mapping and engineering survey.
Type:geodetic
Realization Epoch:1975-01-01
Origin:Adjusted to best mean fit 9 stations of the OSNI 1952 primary adjustment in Northern Ireland plus the 1965 values of 3 stations in the Republic of Ireland.
Ellipsoid:Airy Modified 1849Open
Prime Meridian:GreenwichOpen
Applicable CRS-s: The following CRS are based on this datum:
[TM75]