Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Severn Partnership on behalf of Irish Rail / Atkins Realis.
Revision date: 2026-05-19
Scope: Engineering survey and topographic mapping for railway applications.
Remarks: Created in 2026 to support intermediate CRS Dart+26-IRF in the emulation of the Dart+26 Snake map projection.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Dart+26 Intermediate Reference Frame", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Engineering survey and topographic mapping for railway applications.", "area": "Ireland - on or related to the DART+ rail project from Dublin city centre to Drogheda, Greystones, Hazelhatch and Kilcock.", "bbox": { "south_latitude": 53.1, "west_longitude": -6.75, "north_latitude": 53.8, "east_longitude": -6 }, "id": { "authority": "EPSG", "code": 1460 } }