EPSG:11250

Illinois Coordinate System of 1983 Champaign zone (US survey foot)

Attributes

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 ICS83 33-zone system. Longitude of origin also given by information source as 272°00'E. State law defines grid unit as US survey foot. No equivalent metric definition.

Method: Lambert Conic Conformal (1SP)

Area of use: United States (USA) - Illinois - counties of Champaign and Vermilion.

Description: (0,)

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United States (USA) - Illinois - counties of Champaign and Vermilion.

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Definition: OGC Well Known Text

PROJECTION["Lambert_Conformal_Conic_1SP"],
PARAMETER["latitude_of_origin",40.15],
PARAMETER["central_meridian",-88],
PARAMETER["scale_factor",1.000026],
PARAMETER["false_easting",99974.5999491999],
PARAMETER["false_northing",860147.320294641]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["Illinois Coordinate System of 1983 Champaign zone (US survey foot)",
    METHOD["Lambert Conic Conformal (1SP)",
        ID["EPSG",9801]],
    PARAMETER["Latitude of natural origin",40.15,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8801]],
    PARAMETER["Longitude of natural origin",-88,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8802]],
    PARAMETER["Scale factor at natural origin",1.000026,
        SCALEUNIT["unity",1],
        ID["EPSG",8805]],
    PARAMETER["False easting",328000,
        LENGTHUNIT["US survey foot",0.304800609601219],
        ID["EPSG",8806]],
    PARAMETER["False northing",2822000,
        LENGTHUNIT["US survey foot",0.304800609601219],
        ID["EPSG",8807]],
    ID["EPSG",11250]]

Definition: ESRI Well Known Text

PROJECTION["Lambert_Conformal_Conic"],
PARAMETER["False_Easting",99974.5999491999],
PARAMETER["False_Northing",860147.320294641],
PARAMETER["Central_Meridian",-88.0],
PARAMETER["Standard_Parallel_1",40.15],
PARAMETER["Scale_Factor",1.000026],
PARAMETER["Latitude_Of_Origin",40.15]

Definition: PROJ.4

+proj=lcc +lat_1=40.15 +lat_0=40.15 +lon_0=-88 +k_0=1.000026 +x_0=99974.5999491999 +y_0=860147.320294641

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:11250","+proj=lcc +lat_1=40.15 +lat_0=40.15 +lon_0=-88 +k_0=1.000026 +x_0=99974.5999491999 +y_0=860147.320294641");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "Illinois Coordinate System of 1983 Champaign zone (US survey foot)",
    "method": {
        "name": "Lambert Conic Conformal (1SP)",
        "id": {
            "authority": "EPSG",
            "code": 9801
        }
    },
    "parameters": [
        {
            "name": "Latitude of natural origin",
            "value": 40.15,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8801
            }
        },
        {
            "name": "Longitude of natural origin",
            "value": -88,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8802
            }
        },
        {
            "name": "Scale factor at natural origin",
            "value": 1.000026,
            "unit": "unity",
            "id": {
                "authority": "EPSG",
                "code": 8805
            }
        },
        {
            "name": "False easting",
            "value": 328000,
            "unit": {
                "type": "LinearUnit",
                "name": "US survey foot",
                "conversion_factor": 0.304800609601219
            },
            "id": {
                "authority": "EPSG",
                "code": 8806
            }
        },
        {
            "name": "False northing",
            "value": 2822000,
            "unit": {
                "type": "LinearUnit",
                "name": "US survey foot",
                "conversion_factor": 0.304800609601219
            },
            "id": {
                "authority": "EPSG",
                "code": 8807
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 11250
    }
}

Definition: GeoServer

11250=PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",40.15],PARAMETER["central_meridian",-88],PARAMETER["scale_factor",1.000026],PARAMETER["false_easting",99974.5999491999],PARAMETER["false_northing",860147.320294641]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_1=40.15"
	"lat_0=40.15"
	"lon_0=-88"
	"k_0=1.000026"
	"x_0=99974.5999491999"
	"y_0=860147.320294641"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_1=40.15 +lat_0=40.15 +lon_0=-88 +k_0=1.000026 +x_0=99974.5999491999 +y_0=860147.320294641">
	<Layer srs="+proj=lcc +lat_1=40.15 +lat_0=40.15 +lon_0=-88 +k_0=1.000026 +x_0=99974.5999491999 +y_0=860147.320294641">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 11250, 'EPSG', 11250, '+proj=lcc +lat_1=40.15 +lat_0=40.15 +lon_0=-88 +k_0=1.000026 +x_0=99974.5999491999 +y_0=860147.320294641', 'PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",40.15],PARAMETER["central_meridian",-88],PARAMETER["scale_factor",1.000026],PARAMETER["false_easting",99974.5999491999],PARAMETER["false_northing",860147.320294641]');