EPSG:4279

OS(SN)80

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: OS(SN)80

Datum: OS (SN) 1980

Ellipsoid: Airy 1830

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2004-01-06

Scope: Geodesy.

Area of use: Ireland - onshore. United Kingdom (UK) - onshore - England; Scotland; Wales; Northern Ireland. Isle of Man.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

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Center coordinates
-4.36 55.36

WGS84 bounds:
-10.56 49.81
1.84 60.9

Ireland - onshore. United Kingdom (UK) - onshore - England; Scotland; Wales; Northern Ireland. Isle of Man.
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Definition: OGC Well Known Text

GEOGCS["OS(SN)80",
    DATUM["OS_SN_1980",
        SPHEROID["Airy 1830",6377563.396,299.3249646,
            AUTHORITY["EPSG","7001"]],
        AUTHORITY["EPSG","6279"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4279"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["OS(SN)80",
    DATUM["OS (SN) 1980",
        ELLIPSOID["Airy 1830",6377563.396,299.3249646,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Greenwich",0,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[ellipsoidal,2],
        AXIS["geodetic latitude (Lat)",north,
            ORDER[1],
            ANGLEUNIT["degree",0.0174532925199433]],
        AXIS["geodetic longitude (Lon)",east,
            ORDER[2],
            ANGLEUNIT["degree",0.0174532925199433]],
    USAGE[
        SCOPE["Geodesy."],
        AREA["Ireland - onshore. United Kingdom (UK) - onshore - England; Scotland; Wales; Northern Ireland. Isle of Man."],
        BBOX[49.81,-10.56,60.9,1.84]],
    ID["EPSG",4279]]

Definition: ESRI Well Known Text

GEOGCS["GCS_OS_SN_1980",
    DATUM["D_OS_SN_1980",
        SPHEROID["Airy_1830",6377563.396,299.3249646]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=airy +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4279","+proj=longlat +ellps=airy +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "OS(SN)80",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "OS (SN) 1980",
        "ellipsoid": {
            "name": "Airy 1830",
            "semi_major_axis": 6377563.396,
            "inverse_flattening": 299.3249646
        }
    },
    "coordinate_system": {
        "subtype": "ellipsoidal",
        "axis": [
            {
                "name": "Geodetic latitude",
                "abbreviation": "Lat",
                "direction": "north",
                "unit": "degree"
            },
            {
                "name": "Geodetic longitude",
                "abbreviation": "Lon",
                "direction": "east",
                "unit": "degree"
            }
        ]
    },
    "scope": "Geodesy.",
    "area": "Ireland - onshore. United Kingdom (UK) - onshore - England; Scotland; Wales; Northern Ireland. Isle of Man.",
    "bbox": {
        "south_latitude": 49.81,
        "west_longitude": -10.56,
        "north_latitude": 60.9,
        "east_longitude": 1.84
    },
    "id": {
        "authority": "EPSG",
        "code": 4279
    }
}

Definition: GeoServer

4279=GEOGCS["OS(SN)80",DATUM["OS_SN_1980",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],AUTHORITY["EPSG","6279"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4279"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=airy"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=airy +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=airy +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4279, 'EPSG', 4279, '+proj=longlat +ellps=airy +no_defs +type=crs', 'GEOGCS["OS(SN)80",DATUM["OS_SN_1980",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],AUTHORITY["EPSG","6279"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4279"]]');