Ellipsoid: Clarke 1880 (RGS)
Prime meridian: Greenwich
Data source: EPSG
Information source: NIMA http://earth-info.nima.mil/
Revision date: 2008-06-24
Scope: Topographic mapping.
Area of use: Nigeria - onshore and offshore.
Definition: OGC Well Known Text
DATUM["Minna", SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465, AUTHORITY["EPSG","7012"]], AUTHORITY["EPSG","6263"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Minna", ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465, LENGTHUNIT["metre",1]], ID["EPSG",6263]]
Definition: ESRI Well Known Text
DATUM["D_Minna", SPHEROID["Clarke_1880_RGS",6378249.145,293.465]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Minna", "ellipsoid": { "name": "Clarke 1880 (RGS)", "semi_major_axis": 6378249.145, "inverse_flattening": 293.465 }, "scope": "Topographic mapping.", "area": "Nigeria - onshore and offshore.", "bbox": { "south_latitude": 1.92, "west_longitude": 2.66, "north_latitude": 13.9, "east_longitude": 14.65 }, "id": { "authority": "EPSG", "code": 6263 } }