EPSG:6299

TM65

Attributes

Ellipsoid: Airy Modified 1849

Prime meridian: Greenwich

Data source: EPSG

Information source: "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.

Revision date: 2003-06-27

Scope: Topographic mapping.

Remarks: Differences between OSNI 1952 and TM65 at these stations are RMS 0.25m east, 0.23m north, maximum vector 0.57m. TM65 replaced by and not to be confused with Geodetic Datum of 1965 alias 1975 Mapping Adjustment or TM75 (datum code 6300).

Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.

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Definition: Well Known Text (WKT)

DATUM["TM65",
    SPHEROID["Airy Modified 1849",6377340.189,299.3249646,
        AUTHORITY["EPSG","7002"]],
    AUTHORITY["EPSG","6299"]]

Definition: ESRI WKT

DATUM["D_TM65",SPHEROID["Airy_Modified",6377340.189,299.3249646]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "TM65",
    "ellipsoid": {
        "name": "Airy Modified 1849",
        "semi_major_axis": 6377340.189,
        "inverse_flattening": 299.3249646
    },
    "scope": "Topographic mapping.",
    "area": "Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.",
    "bbox": {
        "south_latitude": 51.39,
        "west_longitude": -10.56,
        "north_latitude": 55.43,
        "east_longitude": -5.34
    },
    "id": {
        "authority": "EPSG",
        "code": 6299
    }
}

Definition: GeoServer

6299-datum=DATUM["TM65",SPHEROID["Airy Modified 1849",6377340.189,299.3249646,AUTHORITY["EPSG","7002"]],AUTHORITY["EPSG","6299"]]

Definition: OGC WKT

DATUM["TM65",SPHEROID["Airy Modified 1849",6377340.189,299.3249646,AUTHORITY["EPSG","7002"]],AUTHORITY["EPSG","6299"]]

Definition: OGC WKT 2 (2019)

DATUM["TM65",ELLIPSOID["Airy Modified 1849",6377340.189,299.3249646,LENGTHUNIT["metre",1]],ID["EPSG",6299]]