EPSG:9973

SCM22 Grid + ODN height

Attributes

Geodetic CRS: SCM22 Grid + ODN height

Data source: EPSG

Information source: Network Rail.

Revision date: 2022-04-08

Scope: Engineering survey and topographic mapping for railway applications.

Area of use: United Kingdom (UK) - on or related to the Scottish central mainline rail route from Motherwell through Perth and Pitlochry to Inverness.

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Center coordinates
108600.97 241871.17

Projected bounds:
74019.79 138877.26
143182.15 345013.87

WGS84 bounds:
-4.4 55.7
-3.3 57.55

United Kingdom (UK) - on or related to the Scottish central mainline rail route from Motherwell through Perth and Pitlochry to Inverness.
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Definition: OGC Well Known Text

COMPD_CS["SCM22 Grid + ODN height",
    PROJCS["SCM22 Grid",
        GEOGCS["SCM22-IRF",
            DATUM["SCM22_Intermediate_Reference_Frame",
                SPHEROID["GRS 1980",6378137,298.257222101,
                    AUTHORITY["EPSG","7019"]],
                AUTHORITY["EPSG","1320"]],
            PRIMEM["Greenwich",0,
                AUTHORITY["EPSG","8901"]],
            UNIT["degree",0.0174532925199433,
                AUTHORITY["EPSG","9122"]],
            AUTHORITY["EPSG","9969"]],
        PROJECTION["Transverse_Mercator"],
        PARAMETER["latitude_of_origin",56.6],
        PARAMETER["central_meridian",-3.85],
        PARAMETER["scale_factor",1],
        PARAMETER["false_easting",108600.972],
        PARAMETER["false_northing",239087.349],
        UNIT["metre",1,
            AUTHORITY["EPSG","9001"]],
        AXIS["Easting",EAST],
        AXIS["Northing",NORTH],
        AUTHORITY["EPSG","9972"]],
    VERT_CS["ODN height",
        VERT_DATUM["Ordnance Datum Newlyn",2005,
            AUTHORITY["EPSG","5101"]],
        UNIT["metre",1,
            AUTHORITY["EPSG","9001"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","5701"]],
    AUTHORITY["EPSG","9973"]]

Definition: OGC Well Known Text 2 (2019)

COMPOUNDCRS["SCM22 Grid + ODN height",
    PROJCRS["SCM22 Grid",
        BASEGEOGCRS["SCM22-IRF",
            DATUM["SCM22 Intermediate Reference Frame",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            ID["EPSG",9969]],
        CONVERSION["SCM22-TM",
            METHOD["Transverse Mercator",
                ID["EPSG",9807]],
            PARAMETER["Latitude of natural origin",56.6,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8801]],
            PARAMETER["Longitude of natural origin",-3.85,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8802]],
            PARAMETER["Scale factor at natural origin",1,
                SCALEUNIT["unity",1],
                ID["EPSG",8805]],
            PARAMETER["False easting",108600.972,
                LENGTHUNIT["metre",1],
                ID["EPSG",8806]],
            PARAMETER["False northing",239087.349,
                LENGTHUNIT["metre",1],
                ID["EPSG",8807]]],
        CS[Cartesian,2],
            AXIS["(E)",east,
                ORDER[1],
                LENGTHUNIT["metre",1]],
            AXIS["(N)",north,
                ORDER[2],
                LENGTHUNIT["metre",1]]],
    VERTCRS["ODN height",
        VDATUM["Ordnance Datum Newlyn"],
        CS[vertical,1],
            AXIS["gravity-related height (H)",up,
                LENGTHUNIT["metre",1]]],
    USAGE[
        SCOPE["Engineering survey and topographic mapping for railway applications."],
        AREA["United Kingdom (UK) - on or related to the Scottish central mainline rail route from Motherwell through Perth and Pitlochry to Inverness."],
        BBOX[55.7,-4.4,57.55,-3.3]],
    ID["EPSG",9973]]

Definition: ESRI Well Known Text

PROJCS["SCM22_Grid",
    GEOGCS["GCS_SCM22-IRF",
        DATUM["SCM22_Intermediate_Reference_Frame",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",108600.972],
    PARAMETER["False_Northing",239087.349],
    PARAMETER["Central_Meridian",-3.85],
    PARAMETER["Scale_Factor",1.0],
    PARAMETER["Latitude_Of_Origin",56.6],
    UNIT["Meter",1.0]],
VERTCS["Newlyn",
    VDATUM["Ordnance_Datum_Newlyn"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",1.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=56.6 +lon_0=-3.85 +k=1 +x_0=108600.972 +y_0=239087.349 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9973","+proj=tmerc +lat_0=56.6 +lon_0=-3.85 +k=1 +x_0=108600.972 +y_0=239087.349 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "CompoundCRS",
    "name": "SCM22 Grid + ODN height",
    "components": [
        {
            "type": "ProjectedCRS",
            "name": "SCM22 Grid",
            "base_crs": {
                "name": "SCM22-IRF",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "SCM22 Intermediate Reference Frame",
                    "ellipsoid": {
                        "name": "GRS 1980",
                        "semi_major_axis": 6378137,
                        "inverse_flattening": 298.257222101
                    }
                },
                "coordinate_system": {
                    "subtype": "ellipsoidal",
                    "axis": [
                        {
                            "name": "Geodetic latitude",
                            "abbreviation": "Lat",
                            "direction": "north",
                            "unit": "degree"
                        },
                        {
                            "name": "Geodetic longitude",
                            "abbreviation": "Lon",
                            "direction": "east",
                            "unit": "degree"
                        }
                    ]
                },
                "id": {
                    "authority": "EPSG",
                    "code": 9969
                }
            },
            "conversion": {
                "name": "SCM22-TM",
                "method": {
                    "name": "Transverse Mercator",
                    "id": {
                        "authority": "EPSG",
                        "code": 9807
                    }
                },
                "parameters": [
                    {
                        "name": "Latitude of natural origin",
                        "value": 56.6,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8801
                        }
                    },
                    {
                        "name": "Longitude of natural origin",
                        "value": -3.85,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8802
                        }
                    },
                    {
                        "name": "Scale factor at natural origin",
                        "value": 1,
                        "unit": "unity",
                        "id": {
                            "authority": "EPSG",
                            "code": 8805
                        }
                    },
                    {
                        "name": "False easting",
                        "value": 108600.972,
                        "unit": "metre",
                        "id": {
                            "authority": "EPSG",
                            "code": 8806
                        }
                    },
                    {
                        "name": "False northing",
                        "value": 239087.349,
                        "unit": "metre",
                        "id": {
                            "authority": "EPSG",
                            "code": 8807
                        }
                    }
                ]
            },
            "coordinate_system": {
                "subtype": "Cartesian",
                "axis": [
                    {
                        "name": "Easting",
                        "abbreviation": "E",
                        "direction": "east",
                        "unit": "metre"
                    },
                    {
                        "name": "Northing",
                        "abbreviation": "N",
                        "direction": "north",
                        "unit": "metre"
                    }
                ]
            }
        },
        {
            "type": "VerticalCRS",
            "name": "ODN height",
            "datum": {
                "type": "VerticalReferenceFrame",
                "name": "Ordnance Datum Newlyn"
            },
            "coordinate_system": {
                "subtype": "vertical",
                "axis": [
                    {
                        "name": "Gravity-related height",
                        "abbreviation": "H",
                        "direction": "up",
                        "unit": "metre"
                    }
                ]
            }
        }
    ],
    "scope": "Engineering survey and topographic mapping for railway applications.",
    "area": "United Kingdom (UK) - on or related to the Scottish central mainline rail route from Motherwell through Perth and Pitlochry to Inverness.",
    "bbox": {
        "south_latitude": 55.7,
        "west_longitude": -4.4,
        "north_latitude": 57.55,
        "east_longitude": -3.3
    },
    "id": {
        "authority": "EPSG",
        "code": 9973
    }
}

Definition: GeoServer

9973=COMPD_CS["SCM22 Grid + ODN height",PROJCS["SCM22 Grid",GEOGCS["SCM22-IRF",DATUM["SCM22_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1320"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9969"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",56.6],PARAMETER["central_meridian",-3.85],PARAMETER["scale_factor",1],PARAMETER["false_easting",108600.972],PARAMETER["false_northing",239087.349],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9972"]],VERT_CS["ODN height",VERT_DATUM["Ordnance Datum Newlyn",2005,AUTHORITY["EPSG","5101"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5701"]],AUTHORITY["EPSG","9973"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=56.6"
	"lon_0=-3.85"
	"k=1"
	"x_0=108600.972"
	"y_0=239087.349"
	"ellps=GRS80"
	"units=m"
	"vunits=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=56.6 +lon_0=-3.85 +k=1 +x_0=108600.972 +y_0=239087.349 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=56.6 +lon_0=-3.85 +k=1 +x_0=108600.972 +y_0=239087.349 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9973, 'EPSG', 9973, '+proj=tmerc +lat_0=56.6 +lon_0=-3.85 +k=1 +x_0=108600.972 +y_0=239087.349 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["SCM22 Grid + ODN height",PROJCS["SCM22 Grid",GEOGCS["SCM22-IRF",DATUM["SCM22_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1320"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9969"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",56.6],PARAMETER["central_meridian",-3.85],PARAMETER["scale_factor",1],PARAMETER["false_easting",108600.972],PARAMETER["false_northing",239087.349],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9972"]],VERT_CS["ODN height",VERT_DATUM["Ordnance Datum Newlyn",2005,AUTHORITY["EPSG","5101"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5701"]],AUTHORITY["EPSG","9973"]]');