EPSG:9871

MOLDOR11-IRF

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: MOLDOR11-IRF

Datum: MOLDOR11 Intermediate Reference Frame

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Network Rail.

Revision date: 2021-11-04

Scope: Engineering survey and topographic mapping for railway applications.

Remarks: Intermediate CRS created in 2021 to assist the emulation of the ETRS89 / MOLDOR11 SnakeGrid projected CRS through transformation ETRS89 to MOLDOR11-IRF (1) (code 9878) used in conjunction with the MOLDOR11-TM map projection (code 9879).

Area of use: United Kingdom (UK) - on or related to the rail route from Manchester via Ordsall Lane and the Hope Valley to Dore Junction.

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

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Center coordinates
-1.9 53.4

WGS84 bounds:
-2.4 53.25
-1.39 53.55

United Kingdom (UK) - on or related to the rail route from Manchester via Ordsall Lane and the Hope Valley to Dore Junction.
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Definition: OGC Well Known Text

GEOGCS["MOLDOR11-IRF",
    DATUM["MOLDOR11_Intermediate_Reference_Frame",
        SPHEROID["GRS 1980",6378137,298.257222101,
            AUTHORITY["EPSG","7019"]],
        AUTHORITY["EPSG","1315"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","9871"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["MOLDOR11-IRF",
    DATUM["MOLDOR11 Intermediate Reference Frame",
        ELLIPSOID["GRS 1980",6378137,298.257222101,
            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["Engineering survey and topographic mapping for railway applications."],
        AREA["United Kingdom (UK) - on or related to the rail route from Manchester via Ordsall Lane and the Hope Valley to Dore Junction."],
        BBOX[53.25,-2.4,53.55,-1.39]],
    ID["EPSG",9871]]

Definition: ESRI Well Known Text

GEOGCS["GCS_MOLDOR11-IRF",
    DATUM["MOLDOR11_Intermediate_Reference_Frame",
        SPHEROID["GRS_1980",6378137.0,298.257222101]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=GRS80 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9871","+proj=longlat +ellps=GRS80 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "MOLDOR11-IRF",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "MOLDOR11 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"
            }
        ]
    },
    "scope": "Engineering survey and topographic mapping for railway applications.",
    "area": "United Kingdom (UK) - on or related to the rail route from Manchester via Ordsall Lane and the Hope Valley to Dore Junction.",
    "bbox": {
        "south_latitude": 53.25,
        "west_longitude": -2.4,
        "north_latitude": 53.55,
        "east_longitude": -1.39
    },
    "id": {
        "authority": "EPSG",
        "code": 9871
    }
}

Definition: GeoServer

9871=GEOGCS["MOLDOR11-IRF",DATUM["MOLDOR11_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1315"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9871"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=GRS80"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=GRS80 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=GRS80 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9871, 'EPSG', 9871, '+proj=longlat +ellps=GRS80 +no_defs +type=crs', 'GEOGCS["MOLDOR11-IRF",DATUM["MOLDOR11_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1315"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9871"]]');