EPSG:4675

Guam 1963

Available transformations
to EPSG:4326
EPSG:4326 - WGS 84

Selected transformation

Method: NADCON

Grid Files: guhpgn.las guhpgn.los

Remarks: Parameter files are from Guam 1963 to NAD83(HARN) (1) (code 1068), but for many purposes NAD83(HARN) can be considered to be coincident with WGS 84 within the accuracy of the transformation.

Information source: OGP

Revision date: 2021-09-23

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Guam 1963

Datum: Guam 1963

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Information source: National Geodetic Survey

Revision date: 2018-08-29

Scope: Cadastre, engineering survey, topographic mapping.

Remarks: Replaced by NAD83(HARN) alias Guam Geodetic Network 1993 (CRS code 4152) from 1995.

Area of use: Guam - onshore. Northern Mariana Islands - onshore.

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

Center coordinates
144.79 13.44

WGS84 bounds:
144.58 13.18
145.01 13.7

Guam - onshore.
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Definition: OGC Well Known Text 2 (2019)

GEOGCRS["Guam 1963",
    DATUM["Guam 1963",
        ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Greenwich",0,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[ellipsoidal,2],
        AXIS["geodetic latitude (Lat)",north,
            ORDER[1],
            ANGLEUNIT["degree",0.0174532925199433]],
        AXIS["geodetic longitude (Lon)",east,
            ORDER[2],
            ANGLEUNIT["degree",0.0174532925199433]],
    USAGE[
        SCOPE["Cadastre, engineering survey, topographic mapping."],
        AREA["Guam - onshore. Northern Mariana Islands - onshore."],
        BBOX[13.18,144.58,20.61,146.12]],
    ID["EPSG",4675]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "Guam 1963",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Guam 1963",
        "ellipsoid": {
            "name": "Clarke 1866",
            "semi_major_axis": 6378206.4,
            "inverse_flattening": 294.978698213898
        }
    },
    "coordinate_system": {
        "subtype": "ellipsoidal",
        "axis": [
            {
                "name": "Geodetic latitude",
                "abbreviation": "Lat",
                "direction": "north",
                "unit": "degree"
            },
            {
                "name": "Geodetic longitude",
                "abbreviation": "Lon",
                "direction": "east",
                "unit": "degree"
            }
        ]
    },
    "scope": "Cadastre, engineering survey, topographic mapping.",
    "area": "Guam - onshore. Northern Mariana Islands - onshore.",
    "bbox": {
        "south_latitude": 13.18,
        "west_longitude": 144.58,
        "north_latitude": 20.61,
        "east_longitude": 146.12
    },
    "id": {
        "authority": "EPSG",
        "code": 4675
    }
}

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4675, 'EPSG', 4675, 'None', 'None');