EPSG:11226

DrukRef23

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: DrukRef23

Datum: National Reference Frame of Bhutan 2023

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: National Land Commission Secretariat of Bhutan (NLCS) report reference DRUKREF23-002-2024.

Revision date: 2026-02-13

Scope: Horizontal component of 3D system.

Remarks: Replaces DRUKREF 03 (CRS code 5264).

Area of use: Bhutan.

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

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SimpleMap

Center coordinates
90.44 27.52

WGS84 bounds:
88.74 26.7
92.13 28.33

Bhutan.
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Definition: OGC Well Known Text

GEOGCS["DrukRef23",
    DATUM["National_Reference_Frame_of_Bhutan_2023",
        SPHEROID["GRS 1980",6378137,298.257222101,
            AUTHORITY["EPSG","7019"]],
        AUTHORITY["EPSG","1448"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","11226"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["DrukRef23",
    DATUM["National Reference Frame of Bhutan 2023",
        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["Horizontal component of 3D system."],
        AREA["Bhutan."],
        BBOX[26.7,88.74,28.33,92.13]],
    ID["EPSG",11226],
    REMARK["Replaces DRUKREF 03 (CRS code 5264)."]]

Definition: ESRI Well Known Text

GEOGCS["GCS_DrukRef23",
    DATUM["D_National_Reference_Frame_of_Bhutan_2023",
        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:11226","+proj=longlat +ellps=GRS80 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "DrukRef23",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "National Reference Frame of Bhutan 2023",
        "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": "Horizontal component of 3D system.",
    "area": "Bhutan.",
    "bbox": {
        "south_latitude": 26.7,
        "west_longitude": 88.74,
        "north_latitude": 28.33,
        "east_longitude": 92.13
    },
    "id": {
        "authority": "EPSG",
        "code": 11226
    },
    "remarks": "Replaces DRUKREF 03 (CRS code 5264)."
}

Definition: GeoServer

11226=GEOGCS["DrukRef23",DATUM["National_Reference_Frame_of_Bhutan_2023",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1448"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","11226"]]

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 ( 11226, 'EPSG', 11226, '+proj=longlat +ellps=GRS80 +no_defs +type=crs', 'GEOGCS["DrukRef23",DATUM["National_Reference_Frame_of_Bhutan_2023",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1448"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","11226"]]');