EPSG:4201

Adindan

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Available transformations
to EPSG:4326
No other targets exist for this CRS

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived at 22 stations. Accuracy 5m in each axis.

Information source: U.S. Defense Mapping Agency TR8350.2 September 1987.

Revision date: 2020-03-14

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Adindan

Datum: Adindan

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: EPSG

Information source: US Coast and Geodetic Survey via Geophysical Reasearch vol 67 #11, October 1962.

Revision date: 2015-04-22

Scope: Geodesy.

Remarks: The 12th parallel traverse of 1966-70 (geogCRS Point 58, code 4620) is connected to the Blue Nile 1958 network in western Sudan. This has given rise to misconceptions that the Blue Nile 1958 network is used in west Africa.

Area of use: Eritrea; Ethiopia; South Sudan; Sudan.

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

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Center coordinates
34.9 12.82

WGS84 bounds:
21.82 3.4
47.99 22.24

Eritrea; Ethiopia; South Sudan; Sudan.
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Definition: OGC Well Known Text

GEOGCS["Adindan",
    DATUM["Adindan",
        SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],
        TOWGS84[-166,-15,204,0,0,0,0]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4201"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["Adindan",
    DATUM["Adindan",
        ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
            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["Eritrea; Ethiopia; South Sudan; Sudan."],
        BBOX[3.4,21.82,22.24,47.99]],
    ID["EPSG",4201]]

Definition: ESRI Well Known Text

GEOGCS["GCS_Adindan",
    DATUM["D_Adindan",
        SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-166,-15,204,0,0,0,0 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4201","+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-166,-15,204,0,0,0,0 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "Adindan",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Adindan",
        "ellipsoid": {
            "name": "Clarke 1880 (RGS)",
            "semi_major_axis": 6378249.145,
            "inverse_flattening": 293.465
        }
    },
    "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": "Eritrea; Ethiopia; South Sudan; Sudan.",
    "bbox": {
        "south_latitude": 3.4,
        "west_longitude": 21.82,
        "north_latitude": 22.24,
        "east_longitude": 47.99
    },
    "id": {
        "authority": "EPSG",
        "code": 4201
    }
}

Definition: GeoServer

4201=GEOGCS["Adindan",DATUM["Adindan",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[-166,-15,204,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4201"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"a=6378249.145"
	"rf=293.465"
	"towgs84=-166,-15,204,0,0,0,0"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-166,-15,204,0,0,0,0 +no_defs +type=crs">
	<Layer srs="+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-166,-15,204,0,0,0,0 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4201, 'EPSG', 4201, '+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-166,-15,204,0,0,0,0 +no_defs +type=crs', 'GEOGCS["Adindan",DATUM["Adindan",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[-166,-15,204,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4201"]]');