NAD83(2011) / ICS83-Rockford (ftUS)

Puerto Rico , accuracy 2.0 m, code 9774 (default) [3]

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 Lee, Ogle and Winnebago.

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

Covered area powered by MapTiler

Center coordinates
-7210794.49 4390237.57

Projected bounds:
-39210952.79 -9079192.67
12042869.58 32829430.61

WGS84 bounds:
167.65 14.92
-63.88 74.71

Puerto Rico - onshore and offshore. United States (USA) onshore and offshore - Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; 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; Wyoming. US Virgin Islands - onshore and offshore.

Definition: OGC Well Known Text

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PROJCS["NAD83(2011) / ICS83-Rockford (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["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",41.25],
    PARAMETER["central_meridian",-89.25],
    PARAMETER["scale_factor",1.000029],
    PARAMETER["false_easting",2822000],
    PARAMETER["false_northing",492000],
    UNIT["US survey foot",0.304800609601219],
    AUTHORITY["EPSG","23302"]]

Definition: OGC Well Known Text 2 (2019)

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PROJCRS["NAD83(2011) / ICS83-Rockford (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 Rockford zone (US survey foot)",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",41.25,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",-89.25,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",1.000029,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",2822000,
            LENGTHUNIT["US survey foot",0.304800609601219],
            ID["EPSG",8806]],
        PARAMETER["False northing",492000,
            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 Lee, Ogle and Winnebago."],
        BBOX[41.58,-89.69,42.51,-88.93]],
    ID["EPSG",23302]]

Definition: ESRI Well Known Text

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PROJCS["NAD_1983_(2011)_ICS_Rockford_(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["Transverse_Mercator"],
    PARAMETER["False_Easting",2822000.0],
    PARAMETER["False_Northing",492000.0],
    PARAMETER["Central_Meridian",-89.25],
    PARAMETER["Scale_Factor",1.000029],
    PARAMETER["Latitude_Of_Origin",41.25],
    UNIT["US survey foot",0.304800609601219]]

Definition: PROJ.4

+proj=tmerc +lat_0=41.25 +lon_0=-89.25 +k=1.000029 +x_0=860147.32029464 +y_0=149961.8999238 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:23302","+proj=tmerc +lat_0=41.25 +lon_0=-89.25 +k=1.000029 +x_0=860147.32029464 +y_0=149961.8999238 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs");

Definition: JSON

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{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NAD83(2011) / ICS83-Rockford (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 Rockford zone (US survey foot)",
        "method": {
            "name": "Transverse Mercator",
            "id": {
                "authority": "EPSG",
                "code": 9807
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 41.25,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": -89.25,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 1.000029,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 2822000,
                "unit": {
                    "type": "LinearUnit",
                    "name": "US survey foot",
                    "conversion_factor": 0.304800609601219
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 492000,
                "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 Lee, Ogle and Winnebago.",
    "bbox": {
        "south_latitude": 41.58,
        "west_longitude": -89.69,
        "north_latitude": 42.51,
        "east_longitude": -88.93
    },
    "id": {
        "authority": "EPSG",
        "code": 23302
    }
}

Definition: GeoServer

23302=PROJCS["NAD83(2011) / ICS83-Rockford (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["Transverse_Mercator"],PARAMETER["latitude_of_origin",41.25],PARAMETER["central_meridian",-89.25],PARAMETER["scale_factor",1.000029],PARAMETER["false_easting",2822000],PARAMETER["false_northing",492000],UNIT["US survey foot",0.304800609601219],AUTHORITY["EPSG","23302"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=41.25"
	"lon_0=-89.25"
	"k=1.000029"
	"x_0=860147.32029464"
	"y_0=149961.8999238"
	"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=tmerc +lat_0=41.25 +lon_0=-89.25 +k=1.000029 +x_0=860147.32029464 +y_0=149961.8999238 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=41.25 +lon_0=-89.25 +k=1.000029 +x_0=860147.32029464 +y_0=149961.8999238 +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 ( 23302, 'EPSG', 23302, '+proj=tmerc +lat_0=41.25 +lon_0=-89.25 +k=1.000029 +x_0=860147.32029464 +y_0=149961.8999238 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83(2011) / ICS83-Rockford (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["Transverse_Mercator"],PARAMETER["latitude_of_origin",41.25],PARAMETER["central_meridian",-89.25],PARAMETER["scale_factor",1.000029],PARAMETER["false_easting",2822000],PARAMETER["false_northing",492000],UNIT["US survey foot",0.304800609601219],AUTHORITY["EPSG","23302"]]');

EPSG:23302