Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: TELT via IGN France.
Revision date: 2021-01-13
Scope: Engineering survey and mapping for the Trans-Europe Lyon-Turin (TELT) railway project.
Area of use: France and Italy - on or related to the rail route from Lyon to Turin.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Lyon Turin Ferroviaire 2004", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Engineering survey and mapping for the Trans-Europe Lyon-Turin (TELT) railway project.", "area": "France and Italy - on or related to the rail route from Lyon to Turin.", "bbox": { "south_latitude": 44.87, "west_longitude": 4.65, "north_latitude": 45.89, "east_longitude": 7.88 }, "id": { "authority": "EPSG", "code": 1295 } }