EPSG:4229

Egypt 1907

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Available transformations
to EPSG:4326
EPSG:4326 - WGS 84

Selected transformation

Method: Molodensky-Badekas (CF geog2D domain)

Remarks: Derived at 30 stations throughout Egypt 1907 network. Accuracy determined at 15 stations 0.7m in each axis. Unified transformation for whole country.

Information source: Survey Research Institute Egypt in Proceedings of the ASPRS 2006 Annual Conference.

Revision date: 2020-03-14

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Egypt 1907

Datum: Egypt 1907

Ellipsoid: Helmert 1906

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2004-01-06

Scope: Geodesy.

Area of use: Egypt - onshore and offshore.

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

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Center coordinates
31.31 27.85

WGS84 bounds:
24.7 21.89
37.91 33.82

Egypt - onshore and offshore.
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Definition: Well Known Text (WKT)

GEOGCS["Egypt 1907",
    DATUM["Egypt_1907",
        SPHEROID["Helmert 1906",6378200,298.3],
        TOWGS84[-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999998]],
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4229"]]

Definition: ESRI WKT

GEOGCS["GCS_Egypt_1907",DATUM["D_Egypt_1907",SPHEROID["Helmert_1906",6378200.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=helmert +towgs84=-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999997587 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4229","+proj=longlat +ellps=helmert +towgs84=-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999997587 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Egypt 1907",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Egypt 1907",
            "ellipsoid": {
                "name": "Helmert 1906",
                "semi_major_axis": 6378200,
                "inverse_flattening": 298.3
            }
        },
        "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": 4229
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)"
                },
                {
                    "name": "World Geodetic System 1984 (G730)"
                },
                {
                    "name": "World Geodetic System 1984 (G873)"
                },
                {
                    "name": "World Geodetic System 1984 (G1150)"
                },
                {
                    "name": "World Geodetic System 1984 (G1674)"
                },
                {
                    "name": "World Geodetic System 1984 (G1762)"
                },
                {
                    "name": "World Geodetic System 1984 (G2139)"
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0"
        },
        "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": 4326
        }
    },
    "transformation": {
        "name": "Transformation from unknown to WGS84",
        "method": {
            "name": "Position Vector transformation (geog2D domain)",
            "id": {
                "authority": "EPSG",
                "code": 9606
            }
        },
        "parameters": [
            {
                "name": "X-axis translation",
                "value": -127.535,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8605
                }
            },
            {
                "name": "Y-axis translation",
                "value": 113.495,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8606
                }
            },
            {
                "name": "Z-axis translation",
                "value": -12.7,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8607
                }
            },
            {
                "name": "X-axis rotation",
                "value": 1.603747,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8608
                }
            },
            {
                "name": "Y-axis rotation",
                "value": -0.153612,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8609
                }
            },
            {
                "name": "Z-axis rotation",
                "value": -5.364408,
                "unit": {
                    "type": "AngularUnit",
                    "name": "arc-second",
                    "conversion_factor": 4.84813681109536e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8610
                }
            },
            {
                "name": "Scale difference",
                "value": 5.33744999997587,
                "unit": {
                    "type": "ScaleUnit",
                    "name": "parts per million",
                    "conversion_factor": 1e-06
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8611
                }
            }
        ]
    }
}

Definition: GeoServer

4229=GEOGCS["Egypt 1907",DATUM["Egypt_1907",SPHEROID["Helmert 1906",6378200,298.3],TOWGS84[-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999998]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4229"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=helmert"
	"towgs84=-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999997587"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=helmert +towgs84=-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999997587 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=helmert +towgs84=-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999997587 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4229, 'EPSG', 4229, '+proj=longlat +ellps=helmert +towgs84=-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999997587 +no_defs +type=crs', 'GEOGCS["Egypt 1907",DATUM["Egypt_1907",SPHEROID["Helmert 1906",6378200,298.3],TOWGS84[-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999998]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4229"]]');

Definition: OGC WKT

GEOGCS["Egypt 1907",DATUM["Egypt_1907",SPHEROID["Helmert 1906",6378200,298.3],TOWGS84[-127.535,113.495,-12.7,1.603747,-0.153612,-5.364408,5.33744999998]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4229"]]

Definition: OGC WKT 2 (2019)

BOUNDCRS[SOURCECRS[GEOGCRS["Egypt 1907",DATUM["Egypt 1907",ELLIPSOID["Helmert 1906",6378200,298.3,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["Egypt - onshore and offshore."],BBOX[21.89,24.7,33.82,37.91]],ID["EPSG",4229]]],TARGETCRS[GEOGCRS["WGS 84",ENSEMBLE["World Geodetic System 1984 ensemble",MEMBER["World Geodetic System 1984 (Transit)"],MEMBER["World Geodetic System 1984 (G730)"],MEMBER["World Geodetic System 1984 (G873)"],MEMBER["World Geodetic System 1984 (G1150)"],MEMBER["World Geodetic System 1984 (G1674)"],MEMBER["World Geodetic System 1984 (G1762)"],MEMBER["World Geodetic System 1984 (G2139)"],ELLIPSOID["WGS 84",6378137,298.257223563,LENGTHUNIT["metre",1]],ENSEMBLEACCURACY[2.0]],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["Horizontal component of 3D system."],AREA["World."],BBOX[-90,-180,90,180]],ID["EPSG",4326]]],ABRIDGEDTRANSFORMATION["Transformation from unknown to WGS84",METHOD["Position Vector transformation (geog2D domain)",ID["EPSG",9606]],PARAMETER["X-axis translation",-127.535,ID["EPSG",8605]],PARAMETER["Y-axis translation",113.495,ID["EPSG",8606]],PARAMETER["Z-axis translation",-12.7,ID["EPSG",8607]],PARAMETER["X-axis rotation",1.603747,ID["EPSG",8608]],PARAMETER["Y-axis rotation",-0.153612,ID["EPSG",8609]],PARAMETER["Z-axis rotation",-5.364408,ID["EPSG",8610]],PARAMETER["Scale difference",1.00000533745,ID["EPSG",8611]]]]