EPSG:6122

Average Terrestrial System 1977

Attributes

Ellipsoid: Average Terrestrial System 1977

Prime meridian: Greenwich

Data source: EPSG

Information source: New Brunswick Geographic Information Corporation land and water information standards manual.

Revision date: 2022-12-12

Scope: Topographic mapping.

Remarks: In use from 1979. To be phased out in late 1990's.

Area of use: Canada - New Brunswick; Nova Scotia; Prince Edward Island.

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WGS84 bounds:
-59.73 43.41
-69.05 48.07

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Definition: OGC Well Known Text

DATUM["Average_Terrestrial_System_1977",
    SPHEROID["Average Terrestrial System 1977",6378135,298.257,
        AUTHORITY["EPSG","7041"]],
    AUTHORITY["EPSG","6122"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["Average Terrestrial System 1977",
    ELLIPSOID["Average Terrestrial System 1977",6378135,298.257,
        LENGTHUNIT["metre",1]],
    ID["EPSG",6122]]

Definition: ESRI Well Known Text

DATUM["D_ATS_1977",
    SPHEROID["ATS_1977",6378135.0,298.257]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "Average Terrestrial System 1977",
    "ellipsoid": {
        "name": "Average Terrestrial System 1977",
        "semi_major_axis": 6378135,
        "inverse_flattening": 298.257
    },
    "scope": "Topographic mapping.",
    "area": "Canada - New Brunswick; Nova Scotia; Prince Edward Island.",
    "bbox": {
        "south_latitude": 43.41,
        "west_longitude": -69.05,
        "north_latitude": 48.07,
        "east_longitude": -59.73
    },
    "id": {
        "authority": "EPSG",
        "code": 6122
    }
}

Definition: GeoServer

6122-datum=DATUM["Average_Terrestrial_System_1977",SPHEROID["Average Terrestrial System 1977",6378135,298.257,AUTHORITY["EPSG","7041"]],AUTHORITY["EPSG","6122"]]