EPSG:6637

NAD83(MA11) / Guam Map Grid

Attributes

Unit: metre

Geodetic CRS: NAD83(MA11)

Datum: NAD83 (National Spatial Reference System MA11)

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Guam Public Law 23-131.

Revision date: 2018-08-29

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

Remarks: Replaces NAD83(HARN) / Guam Map Grid (CRS code 4414).

Area of use: Guam - onshore.

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

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SimpleMap

Center coordinates
104872.57 193362.15

Projected bounds:
81570.46 164597.08
128185.17 222142.05

WGS84 bounds:
144.58 13.18
145.01 13.7

Guam - onshore.
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Definition: OGC Well Known Text

PROJCS["NAD83(MA11) / Guam Map Grid",
    GEOGCS["NAD83(MA11)",
        DATUM["NAD83_National_Spatial_Reference_System_MA11",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","1118"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","6325"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",13.5],
    PARAMETER["central_meridian",144.75],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",100000],
    PARAMETER["false_northing",200000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","6637"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["NAD83(MA11) / Guam Map Grid",
    BASEGEOGCRS["NAD83(MA11)",
        DATUM["NAD83 (National Spatial Reference System MA11)",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",6325]],
    CONVERSION["Guam Map Grid",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",13.5,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",144.75,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",1,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",100000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",200000,
            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",6637]]

Definition: ESRI Well Known Text

PROJCS["NAD_1983_MA11_Guam_Map_Grid",
    GEOGCS["GCS_NAD_1983_MA11",
        DATUM["D_NAD_1983_MA11",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",100000.0],
    PARAMETER["False_Northing",200000.0],
    PARAMETER["Central_Meridian",144.75],
    PARAMETER["Scale_Factor",1.0],
    PARAMETER["Latitude_Of_Origin",13.5],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=13.5 +lon_0=144.75 +k=1 +x_0=100000 +y_0=200000 +ellps=GRS80 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:6637","+proj=tmerc +lat_0=13.5 +lon_0=144.75 +k=1 +x_0=100000 +y_0=200000 +ellps=GRS80 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NAD83(MA11) / Guam Map Grid",
    "base_crs": {
        "name": "NAD83(MA11)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "NAD83 (National Spatial Reference System MA11)",
            "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": 6325
        }
    },
    "conversion": {
        "name": "Guam Map Grid",
        "method": {
            "name": "Transverse Mercator",
            "id": {
                "authority": "EPSG",
                "code": 9807
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 13.5,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": 144.75,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 1,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 100000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 200000,
                "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"
            }
        ]
    },
    "scope": "Cadastre, engineering survey, topographic mapping (large and medium scale).",
    "area": "Guam - onshore.",
    "bbox": {
        "south_latitude": 13.18,
        "west_longitude": 144.58,
        "north_latitude": 13.7,
        "east_longitude": 145.01
    },
    "id": {
        "authority": "EPSG",
        "code": 6637
    }
}

Definition: GeoServer

6637=PROJCS["NAD83(MA11) / Guam Map Grid",GEOGCS["NAD83(MA11)",DATUM["NAD83_National_Spatial_Reference_System_MA11",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1118"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6325"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",13.5],PARAMETER["central_meridian",144.75],PARAMETER["scale_factor",1],PARAMETER["false_easting",100000],PARAMETER["false_northing",200000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6637"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=13.5"
	"lon_0=144.75"
	"k=1"
	"x_0=100000"
	"y_0=200000"
	"ellps=GRS80"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=13.5 +lon_0=144.75 +k=1 +x_0=100000 +y_0=200000 +ellps=GRS80 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=13.5 +lon_0=144.75 +k=1 +x_0=100000 +y_0=200000 +ellps=GRS80 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6637, 'EPSG', 6637, '+proj=tmerc +lat_0=13.5 +lon_0=144.75 +k=1 +x_0=100000 +y_0=200000 +ellps=GRS80 +units=m +no_defs +type=crs', 'PROJCS["NAD83(MA11) / Guam Map Grid",GEOGCS["NAD83(MA11)",DATUM["NAD83_National_Spatial_Reference_System_MA11",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1118"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6325"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",13.5],PARAMETER["central_meridian",144.75],PARAMETER["scale_factor",1],PARAMETER["false_easting",100000],PARAMETER["false_northing",200000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6637"]]');