Guam 1963 / Guam SPCS

Guam , accuracy 5.0 m, code 8665 (default) [grid]
Guam - onshore. , accuracy 5.0 m, code 1068 [grid]

Selected transformation

Name: Guam 1963 to NAD83(HARN) (2)

Grid Files: nadcon5.gu63.nad83_1993.guamcnmi.lat.trn.20160901.b nadcon5.gu63.nad83_1993.guamcnmi.lon.trn.20160901.b

Remarks: Uses NADCON5 method which expects longitudes positive east in range 0-360°; EPSG source and target CRSs have longitudes positive east in range -180° to +180°.

Information source: National Geodetic Survey, www.ngs.noaa.gov

Revision date: 2018-08-10

Attributes

Unit: metre

Geodetic CRS: Guam 1963

Datum: Guam 1963

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Information source: US National Geodetic Survey

Revision date: 2009-07-29

Scope: Cadastre, engineering survey, topographic mapping (large and medium scale).

Remarks: Replaced by NAD83(HARN) / Guam Map Grid (CRS code 4414) from 1995.

Area of use: Guam - onshore.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

Covered area powered by MapTiler

Center coordinates
113799.88 428650.55

Projected bounds:
31443.94 17485.09
198390.07 840372.65

WGS84 bounds:
144.58 13.18
146.12 20.61

Guam - onshore. Northern Mariana Islands - onshore.

Definition: OGC Well Known Text 2 (2019)

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BOUNDCRS[
    SOURCECRS[
        PROJCRS["Guam 1963 / Guam SPCS",
            BASEGEOGCRS["Guam 1963",
                DATUM["Guam 1963",
                    ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4675]],
            CONVERSION["Guam SPCS",
                METHOD["Guam Projection",
                    ID["EPSG",9831]],
                PARAMETER["Latitude of natural origin",13.4724663527778,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",144.748750705556,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["False easting",50000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8806]],
                PARAMETER["False northing",50000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8807]]],
            CS[Cartesian,2],
                AXIS["easting (X)",east,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["northing (Y)",north,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
            USAGE[
                SCOPE["Cadastre, engineering survey, topographic mapping (large and medium scale)."],
                AREA["Guam - onshore."],
                BBOX[13.18,144.58,13.7,145.01]],
            ID["EPSG",3993]]],
    TARGETCRS[
        GEOGCRS["NAD83(HARN)",
            DATUM["NAD83 (High Accuracy Reference Network)",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    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["Horizontal component of 3D system."],
                AREA["American Samoa - onshore - Tutuila, Aunu'u, Ofu, Olesega, Ta'u and Rose islands. Guam - onshore. Northern Mariana Islands - onshore. Puerto Rico - onshore. United States (USA) - onshore plus offshore Gulf of Mexico continental shelf (GoM OCS). US Virgin Islands - onshore."],
                BBOX[-14.59,144.58,71.4,-64.51]],
            ID["EPSG",4152],
            REMARK["In CONUS, AK, HI and PRVI replaces NAD83 for applications with an accuracy of better than 1m. Replaced by NAD83(FBN) in CONUS, American Samoa and Guam / NMI, by NAD83(NSRS2007) in Alaska, by NAD83(PA11) in Hawaii and by NAD83(HARN Corrected) in PRVI."]]],
    ABRIDGEDTRANSFORMATION["Guam 1963 to NAD83(HARN) (2)",
        METHOD["NADCON5 (2D)",
            ID["EPSG",1074]],
        PARAMETERFILE["Latitude difference file","nadcon5.gu63.nad83_1993.guamcnmi.lat.trn.20160901.b"],
        PARAMETERFILE["Longitude difference file","nadcon5.gu63.nad83_1993.guamcnmi.lon.trn.20160901.b"],
        USAGE[
            SCOPE["Geodesy."],
            AREA["Guam - onshore. Northern Mariana Islands - onshore."],
            BBOX[13.18,144.58,20.61,146.12]],
        ID["EPSG",8665],
        REMARK["Uses NADCON5 method which expects longitudes positive east in range 0-360°; EPSG source and target CRSs have longitudes positive east in range -180° to +180°."]]]

Definition: PROJ.4

+proj=aeqd +guam +lat_0=13.4724663527778 +lon_0=144.748750705556 +x_0=50000 +y_0=50000 +ellps=clrk66 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:3993","+proj=aeqd +guam +lat_0=13.4724663527778 +lon_0=144.748750705556 +x_0=50000 +y_0=50000 +ellps=clrk66 +units=m +no_defs +type=crs");

Definition: JSON

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{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "Guam 1963 / Guam SPCS",
        "base_crs": {
            "type": "GeographicCRS",
            "name": "Guam 1963",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Guam 1963",
                "ellipsoid": {
                    "name": "Clarke 1866",
                    "semi_major_axis": 6378206.4,
                    "semi_minor_axis": 6356583.8
                }
            },
            "coordinate_system": {
                "subtype": "ellipsoidal",
                "axis": [
                    {
                        "name": "Geodetic latitude",
                        "abbreviation": "Lat",
                        "direction": "north",
                        "unit": "degree"
                    },
                    {
                        "name": "Geodetic longitude",
                        "abbreviation": "Lon",
                        "direction": "east",
                        "unit": "degree"
                    }
                ]
            },
            "id": {
                "authority": "EPSG",
                "code": 4675
            },
            "remarks": "Replaced by NAD83(HARN) alias Guam Geodetic Network 1993 (CRS code 4152) from 1995."
        },
        "conversion": {
            "name": "Guam SPCS",
            "method": {
                "name": "Guam Projection",
                "id": {
                    "authority": "EPSG",
                    "code": 9831
                }
            },
            "parameters": [
                {
                    "name": "Latitude of natural origin",
                    "value": 13.4724663527778,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8801
                    }
                },
                {
                    "name": "Longitude of natural origin",
                    "value": 144.748750705556,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "False easting",
                    "value": 50000,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8806
                    }
                },
                {
                    "name": "False northing",
                    "value": 50000,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8807
                    }
                }
            ]
        },
        "coordinate_system": {
            "subtype": "Cartesian",
            "axis": [
                {
                    "name": "Easting",
                    "abbreviation": "X",
                    "direction": "east",
                    "unit": "metre"
                },
                {
                    "name": "Northing",
                    "abbreviation": "Y",
                    "direction": "north",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 3993
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "NAD83(HARN)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "NAD83 (High Accuracy Reference Network)",
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4152
        },
        "remarks": "In CONUS, AK, HI and PRVI replaces NAD83 for applications with an accuracy of better than 1m. Replaced by NAD83(FBN) in CONUS, American Samoa and Guam / NMI, by NAD83(NSRS2007) in Alaska, by NAD83(PA11) in Hawaii and by NAD83(HARN Corrected) in PRVI."
    },
    "transformation": {
        "name": "Guam 1963 to NAD83(HARN) (2)",
        "method": {
            "name": "NADCON5 (2D)",
            "id": {
                "authority": "EPSG",
                "code": 1074
            }
        },
        "parameters": [
            {
                "name": "Latitude difference file",
                "value": "nadcon5.gu63.nad83_1993.guamcnmi.lat.trn.20160901.b",
                "id": {
                    "authority": "EPSG",
                    "code": 8657
                }
            },
            {
                "name": "Longitude difference file",
                "value": "nadcon5.gu63.nad83_1993.guamcnmi.lon.trn.20160901.b",
                "id": {
                    "authority": "EPSG",
                    "code": 8658
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 8665
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=aeqd"
	"guam"
	"lat_0=13.4724663527778"
	"lon_0=144.748750705556"
	"x_0=50000"
	"y_0=50000"
	"ellps=clrk66"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=aeqd +guam +lat_0=13.4724663527778 +lon_0=144.748750705556 +x_0=50000 +y_0=50000 +ellps=clrk66 +units=m +no_defs +type=crs">
	<Layer srs="+proj=aeqd +guam +lat_0=13.4724663527778 +lon_0=144.748750705556 +x_0=50000 +y_0=50000 +ellps=clrk66 +units=m +no_defs +type=crs">
	</Layer>
</Map>

EPSG:3993