EPSG:6646 — Karbala 1979 / Iraq National Grid

Projected · Iraq - onshore

Export Formats

OGC WKT

PROJCS[
    "Karbala 1979 / Iraq National Grid",
    GEOGCS[
        "Karbala 1979",
        DATUM[
            "Karbala_1979",
            SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],
            TOWGS84[70.995,-335.916,262.898,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4743"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",29.0262683333333],
    PARAMETER["central_meridian",46.5],
    PARAMETER["scale_factor",0.9994],
    PARAMETER["false_easting",800000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","6646"]
]

WKT2

PROJCRS[
    "Karbala 1979 / Iraq National Grid",
    BASEGEOGCRS[
        "Karbala 1979",
        DATUM[
            "Karbala 1979",
            ELLIPSOID[
                "Clarke 1880 (RGS)",
                6378249.145,
                293.465,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7012]
            ],
            ID["EPSG",6743]
        ],
        ID["EPSG",4743]
    ],
    CONVERSION[
        "Iraq National Grid",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            29.0262683333336,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            46.5000000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            0.9994,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            800000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",19907]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",6646]
]

PROJ.4

+proj=tmerc +lat_0=29.0262683333333 +lon_0=46.5 +k=0.9994 +x_0=800000 +y_0=0 +a=6378249.145 +rf=293.465 +towgs84=70.995,-335.916,262.898,0,0,0,0 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:6646", "+proj=tmerc +lat_0=29.0262683333333 +lon_0=46.5 +k=0.9994 +x_0=800000 +y_0=0 +a=6378249.145 +rf=293.465 +towgs84=70.995,-335.916,262.898,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 6646,
  "name": "Karbala 1979 / Iraq National Grid",
  "kind": "projected",
  "area": "Iraq - onshore",
  "unit": "metre",
  "bbox": [
    29.06,
    38.79,
    37.39,
    48.61
  ],
  "proj4": "+proj=tmerc +lat_0=29.0262683333333 +lon_0=46.5 +k=0.9994 +x_0=800000 +y_0=0 +a=6378249.145 +rf=293.465 +towgs84=70.995,-335.916,262.898,0,0,0,0 +units=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (6646, 'EPSG', 6646, '+proj=tmerc +lat_0=29.0262683333333 +lon_0=46.5 +k=0.9994 +x_0=800000 +y_0=0 +a=6378249.145 +rf=293.465 +towgs84=70.995,-335.916,262.898,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Karbala 1979 / Iraq National Grid",GEOGCS["Karbala 1979",DATUM["Karbala_1979",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[70.995,-335.916,262.898,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4743"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",29.0262683333333],PARAMETER["central_meridian",46.5],PARAMETER["scale_factor",0.9994],PARAMETER["false_easting",800000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6646"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=29.0262683333333"
  "+lon_0=46.5"
  "+k=0.9994"
  "+x_0=800000"
  "+y_0=0"
  "+a=6378249.145"
  "+rf=293.465"
  "+towgs84=70.995,-335.916,262.898,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

6646=PROJCS["Karbala 1979 / Iraq National Grid",GEOGCS["Karbala 1979",DATUM["Karbala_1979",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[70.995,-335.916,262.898,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4743"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",29.0262683333333],PARAMETER["central_meridian",46.5],PARAMETER["scale_factor",0.9994],PARAMETER["false_easting",800000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6646"]]

Related Coordinate Systems

Available Transformations (3)

Transformations inherited from base CRS: EPSG:4743 (Karbala 1979)

Transformation	Source → Target	Accuracy (m)
Karbala 1979 to IGRS (1)	4743 → 3889	0.3
Karbala 1979 to WGS 84 (2)	4743 → 4326	1
Karbala 1979 to WGS 84 (1)	4743 → 4326	5

Other CRS using Karbala 1979

Frequently Asked Questions

How do I add EPSG:6646 to GeoServer?

Add the following definition to your GeoServer configuration:

6646=PROJCS["Karbala 1979 / Iraq National Grid",GEOGCS["Karbala 1979",DATUM["Karbala_1979",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[70.995,-335.916,262.898,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4743"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",29.0262683333333],PARAMETER["central_meridian",46.5],PARAMETER["scale_factor",0.9994],PARAMETER["false_easting",800000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6646"]]

Read the full GeoServer guide →

How do I add EPSG:6646 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (6646, 'EPSG', 6646, '+proj=tmerc +lat_0=29.0262683333333 +lon_0=46.5 +k=0.9994 +x_0=800000 +y_0=0 +a=6378249.145 +rf=293.465 +towgs84=70.995,-335.916,262.898,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Karbala 1979 / Iraq National Grid",GEOGCS["Karbala 1979",DATUM["Karbala_1979",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[70.995,-335.916,262.898,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4743"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",29.0262683333333],PARAMETER["central_meridian",46.5],PARAMETER["scale_factor",0.9994],PARAMETER["false_easting",800000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6646"]]');

Read the full PostGIS guide →

How do I add EPSG:6646 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=29.0262683333333"
  "+lon_0=46.5"
  "+k=0.9994"
  "+x_0=800000"
  "+y_0=0"
  "+a=6378249.145"
  "+rf=293.465"
  "+towgs84=70.995,-335.916,262.898,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:6646 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:6646", "+proj=tmerc +lat_0=29.0262683333333 +lon_0=46.5 +k=0.9994 +x_0=800000 +y_0=0 +a=6378249.145 +rf=293.465 +towgs84=70.995,-335.916,262.898,0,0,0,0 +units=m +no_defs +type=crs");

Read the full Proj4js guide →