EPSG:23307

NAD83(2011) / ICS83-Ottawa (ftUS)

Available transformations
to EPSG:4326
No other targets exist for this CRS

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: For many purposes NAD83(2011) can be considered to be coincident with WGS 84. This approximation ignores the ~2.2m offset of NAD83 from the geocentre, the low accuracy of the WGS 84 ensemble and the application of tectonic plate motion to WGS 84 data.

Information source: IOGP

Revision date: 2021-09-08

Attributes

Unit: US survey foot

Geodetic CRS: NAD83(2011)

Datum: NAD83 (National Spatial Reference System 2011)

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Guide to the Illinois State Plane Coordinate System, https://clearinghouse.isgs.illinois.edu

Revision date: 2023-02-02

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

Remarks: Part of the Illinois Coordinate System of 1983 33-zone system. State law for SPCS83 defines use of US survey feet. This CRS was designed in NAD 83 ftUS but is otherwise based on the NGS guidelines for the NATRF2022 project.

Area of use: United States (USA) - Illinois - counties of Bureau, Grundy, LaSalle and Putnam.

Coordinate system: Cartesian 2D CS. Axes: northing, easting (N,E). Orientations: north, east. UoM: ftUS.

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Definition: OGC Well Known Text

PROJCS["NAD83(2011) / ICS83-Ottawa (ftUS)",
    GEOGCS["NAD83(2011)",
        DATUM["NAD83_National_Spatial_Reference_System_2011",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","6318"]],
    PROJECTION["Lambert_Conformal_Conic_1SP"],
    PARAMETER["latitude_of_origin",41.3],
    PARAMETER["central_meridian",-89.05],
    PARAMETER["scale_factor",1.000023],
    PARAMETER["false_easting",7743000],
    PARAMETER["false_northing",755000],
    UNIT["US survey foot",0.304800609601219],
    AUTHORITY["EPSG","23307"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["NAD83(2011) / ICS83-Ottawa (ftUS)",
    BASEGEOGCRS["NAD83(2011)",
        DATUM["NAD83 (National Spatial Reference System 2011)",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",6318]],
    CONVERSION["Illinois Coordinate System of 1983 Ottawa zone (US survey foot)",
        METHOD["Lambert Conic Conformal (1SP)",
            ID["EPSG",9801]],
        PARAMETER["Latitude of natural origin",41.3,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",-89.05,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",1.000023,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",7743000,
            LENGTHUNIT["US survey foot",0.304800609601219],
            ID["EPSG",8806]],
        PARAMETER["False northing",755000,
            LENGTHUNIT["US survey foot",0.304800609601219],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["northing (N)",north,
            ORDER[1],
            LENGTHUNIT["US survey foot",0.304800609601219]],
        AXIS["easting (E)",east,
            ORDER[2],
            LENGTHUNIT["US survey foot",0.304800609601219]],
    USAGE[
        SCOPE["Engineering survey, topographic mapping (large and medium scale)."],
        AREA["United States (USA) - Illinois - counties of Bureau, Grundy, LaSalle and Putnam."],
        BBOX[40.92,-89.87,41.64,-88.24]],
    ID["EPSG",23307]]

Definition: ESRI Well Known Text

PROJCS["NAD_1983_(2011)_ICS_Ottawa_(US_Feet)",
    GEOGCS["GCS_NAD_1983_2011",
        DATUM["D_NAD_1983_2011",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Lambert_Conformal_Conic"],
    PARAMETER["False_Easting",7743000.0],
    PARAMETER["False_Northing",755000.0],
    PARAMETER["Central_Meridian",-89.05],
    PARAMETER["Standard_Parallel_1",41.3],
    PARAMETER["Scale_Factor",1.000023],
    PARAMETER["Latitude_Of_Origin",41.3],
    UNIT["US survey foot",0.304800609601219]]

Definition: PROJ.4

+proj=lcc +lat_1=41.3 +lat_0=41.3 +lon_0=-89.05 +k_0=1.000023 +x_0=2360071.12014224 +y_0=230124.46024892 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:23307","+proj=lcc +lat_1=41.3 +lat_0=41.3 +lon_0=-89.05 +k_0=1.000023 +x_0=2360071.12014224 +y_0=230124.46024892 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NAD83(2011) / ICS83-Ottawa (ftUS)",
    "base_crs": {
        "name": "NAD83(2011)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "NAD83 (National Spatial Reference System 2011)",
            "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": 6318
        }
    },
    "conversion": {
        "name": "Illinois Coordinate System of 1983 Ottawa zone (US survey foot)",
        "method": {
            "name": "Lambert Conic Conformal (1SP)",
            "id": {
                "authority": "EPSG",
                "code": 9801
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 41.3,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": -89.05,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 1.000023,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 7743000,
                "unit": {
                    "type": "LinearUnit",
                    "name": "US survey foot",
                    "conversion_factor": 0.304800609601219
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 755000,
                "unit": {
                    "type": "LinearUnit",
                    "name": "US survey foot",
                    "conversion_factor": 0.304800609601219
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8807
                }
            }
        ]
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Northing",
                "abbreviation": "N",
                "direction": "north",
                "unit": {
                    "type": "LinearUnit",
                    "name": "US survey foot",
                    "conversion_factor": 0.304800609601219
                }
            },
            {
                "name": "Easting",
                "abbreviation": "E",
                "direction": "east",
                "unit": {
                    "type": "LinearUnit",
                    "name": "US survey foot",
                    "conversion_factor": 0.304800609601219
                }
            }
        ]
    },
    "scope": "Engineering survey, topographic mapping (large and medium scale).",
    "area": "United States (USA) - Illinois - counties of Bureau, Grundy, LaSalle and Putnam.",
    "bbox": {
        "south_latitude": 40.92,
        "west_longitude": -89.87,
        "north_latitude": 41.64,
        "east_longitude": -88.24
    },
    "id": {
        "authority": "EPSG",
        "code": 23307
    }
}

Definition: GeoServer

23307=PROJCS["NAD83(2011) / ICS83-Ottawa (ftUS)",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",41.3],PARAMETER["central_meridian",-89.05],PARAMETER["scale_factor",1.000023],PARAMETER["false_easting",7743000],PARAMETER["false_northing",755000],UNIT["US survey foot",0.304800609601219],AUTHORITY["EPSG","23307"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_1=41.3"
	"lat_0=41.3"
	"lon_0=-89.05"
	"k_0=1.000023"
	"x_0=2360071.12014224"
	"y_0=230124.46024892"
	"ellps=GRS80"
	"towgs84=0,0,0,0,0,0,0"
	"units=us-ft"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_1=41.3 +lat_0=41.3 +lon_0=-89.05 +k_0=1.000023 +x_0=2360071.12014224 +y_0=230124.46024892 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs">
	<Layer srs="+proj=lcc +lat_1=41.3 +lat_0=41.3 +lon_0=-89.05 +k_0=1.000023 +x_0=2360071.12014224 +y_0=230124.46024892 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 23307, 'EPSG', 23307, '+proj=lcc +lat_1=41.3 +lat_0=41.3 +lon_0=-89.05 +k_0=1.000023 +x_0=2360071.12014224 +y_0=230124.46024892 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83(2011) / ICS83-Ottawa (ftUS)",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",41.3],PARAMETER["central_meridian",-89.05],PARAMETER["scale_factor",1.000023],PARAMETER["false_easting",7743000],PARAMETER["false_northing",755000],UNIT["US survey foot",0.304800609601219],AUTHORITY["EPSG","23307"]]');