EPSG:6700

IGN Astro 1960

Attributes

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: EPSG

Information source: Ministry of Works and Transport, Topography and Cartography Directive.

Revision date: 2012-01-05

Scope: Topographic mapping (small scale).

Remarks: Observed during 1959-1960. Independent points not connected through a network. Relative accuracy estimated at 50-100m. Replaced by Mauritania 1999 (datum code 6702).

Area of use: Mauritania - onshore.

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WGS84 bounds:
-4.8 14.72
-17.08 27.3

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Definition: OGC Well Known Text

DATUM["IGN_Astro_1960",
    SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,
        AUTHORITY["EPSG","7012"]],
    AUTHORITY["EPSG","6700"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["IGN Astro 1960",
    ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
        LENGTHUNIT["metre",1]],
    ID["EPSG",6700]]

Definition: ESRI Well Known Text

DATUM["D_IGN_Astro_1960",
    SPHEROID["Clarke_1880_RGS",6378249.145,293.465]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "IGN Astro 1960",
    "ellipsoid": {
        "name": "Clarke 1880 (RGS)",
        "semi_major_axis": 6378249.145,
        "inverse_flattening": 293.465
    },
    "scope": "Topographic mapping (small scale).",
    "area": "Mauritania - onshore.",
    "bbox": {
        "south_latitude": 14.72,
        "west_longitude": -17.08,
        "north_latitude": 27.3,
        "east_longitude": -4.8
    },
    "id": {
        "authority": "EPSG",
        "code": 6700
    }
}

Definition: GeoServer

6700-datum=DATUM["IGN_Astro_1960",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],AUTHORITY["EPSG","6700"]]