EPSG:6618

South American Datum 1969

Attributes

Ellipsoid: GRS 1967 Modified

Prime meridian: Greenwich

Data source: EPSG

Information source: DMA 1974.

Revision date: 2011-07-27

Scope: Topographic mapping.

Remarks: SAD69 uses GRS 1967 ellipsoid but with 1/f to exactly 2 decimal places. In Brazil only, replaced by SAD69(96) (datum code 1075).

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

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WGS84 bounds:
-25.28 -55.96
-91.72 12.52

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Definition: OGC Well Known Text

DATUM["South_American_Datum_1969",
    SPHEROID["GRS 1967 Modified",6378160,298.25,
        AUTHORITY["EPSG","7050"]],
    AUTHORITY["EPSG","6618"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["South American Datum 1969",
    ELLIPSOID["GRS 1967 Modified",6378160,298.25,
        LENGTHUNIT["metre",1]],
    ID["EPSG",6618]]

Definition: ESRI Well Known Text

DATUM["D_South_American_1969",
    SPHEROID["GRS_1967_Truncated",6378160.0,298.25]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "South American Datum 1969",
    "ellipsoid": {
        "name": "GRS 1967 Modified",
        "semi_major_axis": 6378160,
        "inverse_flattening": 298.25
    },
    "scope": "Topographic mapping.",
    "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": 6618
    }
}

Definition: GeoServer

6618-datum=DATUM["South_American_Datum_1969",SPHEROID["GRS 1967 Modified",6378160,298.25,AUTHORITY["EPSG","7050"]],AUTHORITY["EPSG","6618"]]