EPSG:6175

Sierra Leone 1968

Attributes

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: EPSG

Information source: Ordnance Survey International.

Revision date: 2022-12-12

Scope: Engineering survey, topographic mapping.

Remarks: Extension and readjustment with additional observations of 1960 network. Coordinates of 1960 stations change by less than 3 metres.

Area of use: Sierra Leone - onshore.

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WGS84 bounds:
-10.26 6.88
-13.35 10.0

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Definition: OGC Well Known Text

DATUM["Sierra_Leone_1968",
    SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,
        AUTHORITY["EPSG","7012"]],
    AUTHORITY["EPSG","6175"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["Sierra Leone 1968",
    ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
        LENGTHUNIT["metre",1]],
    ID["EPSG",6175]]

Definition: ESRI Well Known Text

DATUM["D_Sierra_Leone_1968",
    SPHEROID["Clarke_1880_RGS",6378249.145,293.465]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "Sierra Leone 1968",
    "ellipsoid": {
        "name": "Clarke 1880 (RGS)",
        "semi_major_axis": 6378249.145,
        "inverse_flattening": 293.465
    },
    "scope": "Engineering survey, topographic mapping.",
    "area": "Sierra Leone - onshore.",
    "bbox": {
        "south_latitude": 6.88,
        "west_longitude": -13.35,
        "north_latitude": 10,
        "east_longitude": -10.26
    },
    "id": {
        "authority": "EPSG",
        "code": 6175
    }
}

Definition: GeoServer

6175-datum=DATUM["Sierra_Leone_1968",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],AUTHORITY["EPSG","6175"]]