EPSG:4726 — SIGD61

Geographic 2D · Cayman Islands - Little Cayman and Cayman Brac

Export Formats

OGC WKT

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"]
]

WKT2

GEOGCRS[
    "SIGD61",
    DATUM[
        "Sister Islands Geodetic Datum 1961",
        ELLIPSOID[
            "Clarke 1866",
            6378206.4,
            294.978698213898,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7008]
        ],
        ID["EPSG",6726]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4726]
]

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

Proj4js

How to add a projection to 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");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4726,
  "name": "SIGD61",
  "kind": "geographic 2D",
  "area": "Cayman Islands - Little Cayman and Cayman Brac",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    19.63,
    -80.14,
    19.78,
    -79.69
  ],
  "proj4": "+proj=longlat +ellps=clrk66 +towgs84=8.853,-52.644,180.304,0.393,2.323,-2.96,-24.081 +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 (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"]]');

MapServer

How to add a projection to MapServer? →

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

GeoServer

How to add a projection to 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"]]

Related Coordinate Systems

Available Transformations (4)

Transformation	Source → Target	Accuracy (m)
SIGD61 to CIGD11 (1)	4726 → 6135	0.15
SIGD61 to WGS 84 (3)	4726 → 4326	1
SIGD61 to WGS 84 (2)	4726 → 4326	1
SIGD61 to WGS 84 (1)	4726 → 4326	44

Other CRS using Sister Islands Geodetic Datum 1961

Frequently Asked Questions

How do I add EPSG:4726 to GeoServer?

Add the following definition to your GeoServer configuration:

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"]]

Read the full GeoServer guide →

How do I add EPSG:4726 to PostGIS?

Add the following definition to your PostGIS configuration:

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"]]');

Read the full PostGIS guide →

How do I add EPSG:4726 to MapServer?

Add the following definition to your MapServer configuration:

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

Read the full MapServer guide →

How do I use EPSG:4726 with Proj4js?

Add the following definition to your Proj4js configuration:

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");

Read the full Proj4js guide →