EPSG:4726

SIGD61

Transform Get position on a map

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

Selected transformation

Name: SIGD61 to WGS 84 (3)

Method: Coordinate Frame rotation (geog2D domain)

Remarks: Parameter values are taken from SIGD59 to CIGD11 (1) (code 6137) assuming that CIGD11 and WGS 84 can be considered the same to within the accuracy of the transformation.

Information source: OGP

Revision date: 2021-09-23

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: SIGD61

Datum: Sister Islands Geodetic Datum 1961

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Information source: Lands and Surveys Department, Cayman Islands Government.

Revision date: 2013-01-17

Scope: Cadastre, engineering survey, topographic mapping.

Remarks: Superseded by CIGD11 (CRS code 6135).

Area of use: Cayman Islands - Little Cayman and Cayman Brac.

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

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Center coordinates
-79.91 19.71

WGS84 bounds:
-80.14 19.63
-79.69 19.78

Cayman Islands - Little Cayman and Cayman Brac.
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Definition: OGC Well Known Text

GEOGCS["SIGD61",
    DATUM["Sister_Islands_Geodetic_Datum_1961",
        SPHEROID["Clarke 1866",6378206.4,294.978698213898],
        TOWGS84[8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4726"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["SIGD61",
    DATUM["Sister Islands Geodetic Datum 1961",
        ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
            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["Cadastre, engineering survey, topographic mapping."],
        AREA["Cayman Islands - Little Cayman and Cayman Brac."],
        BBOX[19.63,-80.14,19.78,-79.69]],
    ID["EPSG",4726]]

Definition: ESRI Well Known Text

GEOGCS["GCS_Little_Cayman_1961",
    DATUM["D_Little_Cayman_1961",
        SPHEROID["Clarke_1866",6378206.4,294.978698213898]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=clrk66 +towgs84=8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4726","+proj=longlat +ellps=clrk66 +towgs84=8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "SIGD61",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Sister Islands Geodetic Datum 1961",
        "ellipsoid": {
            "name": "Clarke 1866",
            "semi_major_axis": 6378206.4,
            "inverse_flattening": 294.978698213898
        }
    },
    "coordinate_system": {
        "subtype": "ellipsoidal",
        "axis": [
            {
                "name": "Geodetic latitude",
                "abbreviation": "Lat",
                "direction": "north",
                "unit": "degree"
            },
            {
                "name": "Geodetic longitude",
                "abbreviation": "Lon",
                "direction": "east",
                "unit": "degree"
            }
        ]
    },
    "scope": "Cadastre, engineering survey, topographic mapping.",
    "area": "Cayman Islands - Little Cayman and Cayman Brac.",
    "bbox": {
        "south_latitude": 19.63,
        "west_longitude": -80.14,
        "north_latitude": 19.78,
        "east_longitude": -79.69
    },
    "id": {
        "authority": "EPSG",
        "code": 4726
    }
}

Definition: GeoServer

4726=GEOGCS["SIGD61",DATUM["Sister_Islands_Geodetic_Datum_1961",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4726"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=clrk66"
	"towgs84=8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=clrk66 +towgs84=8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=clrk66 +towgs84=8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4726, 'EPSG', 4726, '+proj=longlat +ellps=clrk66 +towgs84=8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081 +no_defs +type=crs', 'GEOGCS["SIGD61",DATUM["Sister_Islands_Geodetic_Datum_1961",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4726"]]');