EPSG:4456

NAD27 / New York Long Island

Available transformations
to EPSG:4152

Selected transformation

Grid Files: conus.las conus.los mehpgn.las mehpgn.los

Remarks: May be taken as approximate transformation NAD27 to WGS 84 - see code 8604.

Information source: US Coast & Geodetic Survey www.ngs.noaa.gov NADCON readme file

Revision date: 1999-10-20

Attributes

Unit: US survey foot

Geodetic CRS: NAD27

Datum: North American Datum 1927

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2009-08-29

Center coordinates
3290753.36 1871450.54

Projected bounds:
2724492.25 1038658.59
3894726.69 2717707.16

WGS84 bounds:
-71.09 43.04
-66.91 47.47

United States (USA) - Maine.
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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        BOUNDCRS[
            SOURCECRS[
                PROJCRS["NAD27 / New York Long Island",
                    BASEGEOGCRS["NAD27",
                        DATUM["North American Datum 1927",
                            ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
                                LENGTHUNIT["metre",1]]],
                        PRIMEM["Greenwich",0,
                            ANGLEUNIT["degree",0.0174532925199433]],
                        ID["EPSG",4267]],
                    CONVERSION["New York CS27 Long Island zone",
                        METHOD["Lambert Conic Conformal (2SP)",
                            ID["EPSG",9802]],
                        PARAMETER["Latitude of false origin",40.5,
                            ANGLEUNIT["degree",0.0174532925199433],
                            ID["EPSG",8821]],
                        PARAMETER["Longitude of false origin",-74,
                            ANGLEUNIT["degree",0.0174532925199433],
                            ID["EPSG",8822]],
                        PARAMETER["Latitude of 1st standard parallel",41.0333333333333,
                            ANGLEUNIT["degree",0.0174532925199433],
                            ID["EPSG",8823]],
                        PARAMETER["Latitude of 2nd standard parallel",40.6666666666667,
                            ANGLEUNIT["degree",0.0174532925199433],
                            ID["EPSG",8824]],
                        PARAMETER["Easting at false origin",2000000,
                            LENGTHUNIT["US survey foot",0.304800609601219],
                            ID["EPSG",8826]],
                        PARAMETER["Northing at false origin",100000,
                            LENGTHUNIT["US survey foot",0.304800609601219],
                            ID["EPSG",8827]]],
                    CS[Cartesian,2],
                        AXIS["easting (X)",east,
                            ORDER[1],
                            LENGTHUNIT["US survey foot",0.304800609601219]],
                        AXIS["northing (Y)",north,
                            ORDER[2],
                            LENGTHUNIT["US survey foot",0.304800609601219]],
                    ID["EPSG",4456]]],
            TARGETCRS[
                GEOGCRS["NAD83",
                    DATUM["North American Datum 1983",
                        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]],
                    ID["EPSG",4269]]],
            ABRIDGEDTRANSFORMATION["NAD27 to NAD83 (1)",
                METHOD["NADCON",
                    ID["EPSG",9613]],
                PARAMETERFILE["Latitude difference file","conus.las"],
                PARAMETERFILE["Longitude difference file","conus.los"],
                ID["EPSG",1241]]]],
    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 Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin and Wyoming; offshore Gulf of Mexico continental shelf (GoM OCS). US Virgin Islands - onshore."],
                BBOX[-14.59,144.58,71.4,-64.51]],
            ID["EPSG",4152]]],
    ABRIDGEDTRANSFORMATION["NAD83 to NAD83(HARN) (13)",
        METHOD["NADCON",
            ID["EPSG",9613]],
        PARAMETERFILE["Latitude difference file","mehpgn.las"],
        PARAMETERFILE["Longitude difference file","mehpgn.los"],
        USAGE[
            SCOPE["Geodesy."],
            AREA["United States (USA) - Maine."],
            BBOX[43.04,-71.09,47.47,-66.91]],
        ID["EPSG",1486],
        REMARK["Accuracy 67% confidence level. Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 1721."]]]

Definition: PROJ.4

+proj=lcc +lat_0=40.5 +lon_0=-74 +lat_1=41.0333333333333 +lat_2=40.6666666666667 +x_0=609601.219202438 +y_0=30480.0609601219 +datum=NAD27 +units=us-ft +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4456","+proj=lcc +lat_0=40.5 +lon_0=-74 +lat_1=41.0333333333333 +lat_2=40.6666666666667 +x_0=609601.219202438 +y_0=30480.0609601219 +datum=NAD27 +units=us-ft +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "BoundCRS",
        "source_crs": {
            "type": "ProjectedCRS",
            "name": "NAD27 / New York Long Island",
            "base_crs": {
                "name": "NAD27",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "North American Datum 1927",
                    "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": 4267
                }
            },
            "conversion": {
                "name": "New York CS27 Long Island zone",
                "method": {
                    "name": "Lambert Conic Conformal (2SP)",
                    "id": {
                        "authority": "EPSG",
                        "code": 9802
                    }
                },
                "parameters": [
                    {
                        "name": "Latitude of false origin",
                        "value": 40.5,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8821
                        }
                    },
                    {
                        "name": "Longitude of false origin",
                        "value": -74,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8822
                        }
                    },
                    {
                        "name": "Latitude of 1st standard parallel",
                        "value": 41.0333333333333,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8823
                        }
                    },
                    {
                        "name": "Latitude of 2nd standard parallel",
                        "value": 40.6666666666667,
                        "unit": "degree",
                        "id": {
                            "authority": "EPSG",
                            "code": 8824
                        }
                    },
                    {
                        "name": "Easting at false origin",
                        "value": 2000000,
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        },
                        "id": {
                            "authority": "EPSG",
                            "code": 8826
                        }
                    },
                    {
                        "name": "Northing at false origin",
                        "value": 100000,
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        },
                        "id": {
                            "authority": "EPSG",
                            "code": 8827
                        }
                    }
                ]
            },
            "coordinate_system": {
                "subtype": "Cartesian",
                "axis": [
                    {
                        "name": "Easting",
                        "abbreviation": "X",
                        "direction": "east",
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        }
                    },
                    {
                        "name": "Northing",
                        "abbreviation": "Y",
                        "direction": "north",
                        "unit": {
                            "type": "LinearUnit",
                            "name": "US survey foot",
                            "conversion_factor": 0.304800609601219
                        }
                    }
                ]
            },
            "id": {
                "authority": "EPSG",
                "code": 4456
            }
        },
        "target_crs": {
            "type": "GeographicCRS",
            "name": "NAD83",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "North American Datum 1983",
                "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": 4269
            }
        },
        "transformation": {
            "name": "NAD27 to NAD83 (1)",
            "method": {
                "name": "NADCON",
                "id": {
                    "authority": "EPSG",
                    "code": 9613
                }
            },
            "parameters": [
                {
                    "name": "Latitude difference file",
                    "value": "conus.las",
                    "id": {
                        "authority": "EPSG",
                        "code": 8657
                    }
                },
                {
                    "name": "Longitude difference file",
                    "value": "conus.los",
                    "id": {
                        "authority": "EPSG",
                        "code": 8658
                    }
                }
            ],
            "id": {
                "authority": "EPSG",
                "code": 1241
            }
        }
    },
    "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
        }
    },
    "transformation": {
        "name": "NAD83 to NAD83(HARN) (13)",
        "source_crs": {
            "type": "GeographicCRS",
            "name": "NAD83",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "North American Datum 1983",
                "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": 4269
            }
        },
        "method": {
            "name": "NADCON",
            "id": {
                "authority": "EPSG",
                "code": 9613
            }
        },
        "parameters": [
            {
                "name": "Latitude difference file",
                "value": "mehpgn.las",
                "id": {
                    "authority": "EPSG",
                    "code": 8657
                }
            },
            {
                "name": "Longitude difference file",
                "value": "mehpgn.los",
                "id": {
                    "authority": "EPSG",
                    "code": 8658
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1486
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_0=40.5"
	"lon_0=-74"
	"lat_1=41.0333333333333"
	"lat_2=40.6666666666667"
	"x_0=609601.219202438"
	"y_0=30480.0609601219"
	"datum=NAD27"
	"units=us-ft"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_0=40.5 +lon_0=-74 +lat_1=41.0333333333333 +lat_2=40.6666666666667 +x_0=609601.219202438 +y_0=30480.0609601219 +datum=NAD27 +units=us-ft +no_defs +type=crs">
	<Layer srs="+proj=lcc +lat_0=40.5 +lon_0=-74 +lat_1=41.0333333333333 +lat_2=40.6666666666667 +x_0=609601.219202438 +y_0=30480.0609601219 +datum=NAD27 +units=us-ft +no_defs +type=crs">
	</Layer>
</Map>