EPSG:4291 DEPRECATED

SAD69

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Available transformations
to EPSG:4326
No other targets exist for this CRS

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived at 84 stations.

Information source: U.S. Defense Mapping Agency TR8350.2 September 1987.

Revision date: 1996-10-18

Attributes

Unit: degree minute second hemisphere

Geodetic CRS: SAD69

Datum: South American Datum 1969

Ellipsoid: GRS 1967

Prime meridian: Greenwich

Data source: EPSG

Revision date: 1995-06-02

Scope: Geodesy.

Remarks: Uses GRS67 ellipsoid with 1/f to exactly 2 decimal places. Precision of ellipsoid entry increased from 2 to 5 dp with change id 97.251. Error introduced if not using the truncated precision is 0 to 31mm.

Area of use: Brazil - onshore and offshore. In rest of South America - onshore north of approximately 45°S and Tierra del Fuego.

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

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Center coordinates
-58.0 -21.57

WGS84 bounds:
-82.0 -56.15
-34.0 13.0

South America - Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.
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Definition: OGC Well Known Text

GEOGCS["SAD69",
    DATUM["South_American_Datum_1969",
        SPHEROID["GRS 1967",6378160,298.247167427],
        TOWGS84[-57,1,-41,0,0,0,0]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree minute second hemisphere",0.0174532925199433],
    AUTHORITY["EPSG","4291"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["SAD69",
    DATUM["South American Datum 1969",
        ELLIPSOID["GRS 1967",6378160,298.247167427,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Greenwich",0,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[ellipsoidal,2],
        AXIS["geodetic latitude (Lat)",north,
            ORDER[1],
            ANGLEUNIT["degree minute second hemisphere",0.0174532925199433]],
        AXIS["geodetic longitude (Long)",east,
            ORDER[2],
            ANGLEUNIT["degree minute second hemisphere",0.0174532925199433]],
    USAGE[
        SCOPE["Geodesy."],
        AREA["Brazil - onshore and offshore. In rest of South America - onshore north of approximately 45°S and Tierra del Fuego."],
        BBOX[-55.96,-91.72,12.52,-25.28]],
    ID["EPSG",4291]]

Definition: ESRI Well Known Text

GEOGCS["GCS_South_American_1969",
    DATUM["D_South_American_1969",
        SPHEROID["GRS_1967",6378160.0,298.247167427]],
    PRIMEM["Greenwich",0.0],
    UNIT["degree minute second hemisphere",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4291","+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "SAD69",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "South American Datum 1969",
        "ellipsoid": {
            "name": "GRS 1967",
            "semi_major_axis": 6378160,
            "inverse_flattening": 298.247167427
        }
    },
    "coordinate_system": {
        "subtype": "ellipsoidal",
        "axis": [
            {
                "name": "Geodetic latitude",
                "abbreviation": "Lat",
                "direction": "north",
                "unit": {
                    "type": "AngularUnit",
                    "name": "degree minute second hemisphere",
                    "conversion_factor": 0.0174532925199433
                }
            },
            {
                "name": "Geodetic longitude",
                "abbreviation": "Long",
                "direction": "east",
                "unit": {
                    "type": "AngularUnit",
                    "name": "degree minute second hemisphere",
                    "conversion_factor": 0.0174532925199433
                }
            }
        ]
    },
    "scope": "Geodesy.",
    "area": "Brazil - onshore and offshore. In rest of South America - onshore north of approximately 45°S and Tierra del Fuego.",
    "bbox": {
        "south_latitude": -55.96,
        "west_longitude": -91.72,
        "north_latitude": 12.52,
        "east_longitude": -25.28
    },
    "id": {
        "authority": "EPSG",
        "code": 4291
    }
}

Definition: GeoServer

4291=GEOGCS["SAD69",DATUM["South_American_Datum_1969",SPHEROID["GRS 1967",6378160,298.247167427],TOWGS84[-57,1,-41,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree minute second hemisphere",0.0174532925199433],AUTHORITY["EPSG","4291"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=GRS67"
	"towgs84=-57,1,-41,0,0,0,0"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4291, 'EPSG', 4291, '+proj=longlat +ellps=GRS67 +towgs84=-57,1,-41,0,0,0,0 +no_defs +type=crs', 'GEOGCS["SAD69",DATUM["South_American_Datum_1969",SPHEROID["GRS 1967",6378160,298.247167427],TOWGS84[-57,1,-41,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree minute second hemisphere",0.0174532925199433],AUTHORITY["EPSG","4291"]]');