EPSG:6138

St. George Island

Attributes

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Information source: http://www.ngs.noaa.gov/ (NADCON readme file)

Revision date: 2022-12-12

Scope: Topographic mapping.

Remarks: Many Alaskan islands were never on NAD27 but rather on independent datums. NADCON conversion program provides transformation from St. George Island Datum to NAD83 (original 1986 realization) - making the transformation appear to user as if from NAD27.

Area of use: United States (USA) - Alaska - Pribilof Islands - St George Island.

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WGS84 bounds:
-169.38 56.49
-169.88 56.67

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Definition: OGC Well Known Text

DATUM["St_George_Island",
    SPHEROID["Clarke 1866",6378206.4,294.978698213898,
        AUTHORITY["EPSG","7008"]],
    AUTHORITY["EPSG","6138"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["St. George Island",
    ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
        LENGTHUNIT["metre",1]],
    ID["EPSG",6138]]

Definition: ESRI Well Known Text

DATUM["D_St_George_Island",
    SPHEROID["Clarke_1866",6378206.4,294.978698213898]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "St. George Island",
    "ellipsoid": {
        "name": "Clarke 1866",
        "semi_major_axis": 6378206.4,
        "semi_minor_axis": 6356583.8
    },
    "scope": "Topographic mapping.",
    "area": "United States (USA) - Alaska - Pribilof Islands - St George Island.",
    "bbox": {
        "south_latitude": 56.49,
        "west_longitude": -169.88,
        "north_latitude": 56.67,
        "east_longitude": -169.38
    },
    "id": {
        "authority": "EPSG",
        "code": 6138
    }
}

Definition: GeoServer

6138-datum=DATUM["St_George_Island",SPHEROID["Clarke 1866",6378206.4,294.978698213898,AUTHORITY["EPSG","7008"]],AUTHORITY["EPSG","6138"]]