EPSG:2917

NAD83(HARN) / Texas North Central (ftUS)

Selected transformation

Method: Coordinate Frame rotation (geog2D domain)

Remarks: Approximation derived from tfm code 6864 ignoring time-dependent parameters and assuming ITRF96(1997.0) and WGS 84, plus NAD83(CORS96) and NAD83(HARN), can be considered the same within the accuracy of the tfm. In USA only replaces tfm code 1900.

Information source: http://www.ngs.noaa.gov/CORS/Derivation.html

Revision date: 2021-09-08

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Definition: OGC Well Known Text

PROJCS["NAD83(HARN) / Texas North Central (ftUS)",
    GEOGCS["NAD83(HARN)",
        DATUM["NAD83_High_Accuracy_Reference_Network",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4152"]],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["latitude_of_origin",31.6666666666667],
    PARAMETER["central_meridian",-98.5],
    PARAMETER["standard_parallel_1",33.9666666666667],
    PARAMETER["standard_parallel_2",32.1333333333333],
    PARAMETER["false_easting",1968500],
    PARAMETER["false_northing",6561666.667],
    UNIT["US survey foot",0.304800609601219],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","2917"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["NAD83(HARN) / Texas North Central (ftUS)",
    BASEGEOGCRS["NAD83(HARN)",
        DATUM["NAD83 (High Accuracy Reference Network)",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4152]],
    CONVERSION["SPCS83 Texas North Central zone (US survey foot)",
        METHOD["Lambert Conic Conformal (2SP)",
            ID["EPSG",9802]],
        PARAMETER["Latitude of false origin",31.6666666666667,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8821]],
        PARAMETER["Longitude of false origin",-98.5,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8822]],
        PARAMETER["Latitude of 1st standard parallel",33.9666666666667,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8823]],
        PARAMETER["Latitude of 2nd standard parallel",32.1333333333333,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8824]],
        PARAMETER["Easting at false origin",1968500,
            LENGTHUNIT["US survey foot",0.304800609601219],
            ID["EPSG",8826]],
        PARAMETER["Northing at false origin",6561666.667,
            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]],
    USAGE[
        SCOPE["Engineering survey, topographic mapping."],
        AREA["United States (USA) - Texas - counties of: Andrews; Archer; Bailey; Baylor; Borden; Bowie; Callahan; Camp; Cass; Clay; Cochran; Collin; Cooke; Cottle; Crosby; Dallas; Dawson; Delta; Denton; Dickens; Eastland; Ellis; Erath; Fannin; Fisher; Floyd; Foard; Franklin; Gaines; Garza; Grayson; Gregg; Hale; Hardeman; Harrison; Haskell; Henderson; Hill; Hockley; Hood; Hopkins; Howard; Hunt; Jack; Johnson; Jones; Kaufman; Kent; King; Knox; Lamar; Lamb; Lubbock; Lynn; Marion; Martin; Mitchell; Montague; Morris; Motley; Navarro; Nolan; Palo Pinto; Panola; Parker; Rains; Red River; Rockwall; Rusk; Scurry; Shackelford; Smith; Somervell; Stephens; Stonewall; Tarrant; Taylor; Terry; Throckmorton; Titus; Upshur; Van Zandt; Wichita; Wilbarger; Wise; Wood; Yoakum; Young."],
        BBOX[31.72,-103.07,34.58,-94]],
    ID["EPSG",2917]]

Definition: ESRI Well Known Text

PROJCS["NAD_1983_HARN_StatePlane_Texas_North_Central_FIPS_4202_Feet",
    GEOGCS["GCS_North_American_1983_HARN",
        DATUM["D_North_American_1983_HARN",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Lambert_Conformal_Conic"],
    PARAMETER["False_Easting",1968500.0],
    PARAMETER["False_Northing",6561666.667],
    PARAMETER["Central_Meridian",-98.5],
    PARAMETER["Standard_Parallel_1",33.9666666666667],
    PARAMETER["Standard_Parallel_2",32.1333333333333],
    PARAMETER["Latitude_Of_Origin",31.6666666666667],
    UNIT["US survey foot",0.304800609601219]]

Definition: PROJ.4

+proj=lcc +lat_0=31.6666666666667 +lon_0=-98.5 +lat_1=33.9666666666667 +lat_2=32.1333333333333 +x_0=600000 +y_0=2000000.0001016 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=us-ft +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:2917","+proj=lcc +lat_0=31.6666666666667 +lon_0=-98.5 +lat_1=33.9666666666667 +lat_2=32.1333333333333 +x_0=600000 +y_0=2000000.0001016 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=us-ft +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NAD83(HARN) / Texas North Central (ftUS)",
    "base_crs": {
        "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
        }
    },
    "conversion": {
        "name": "SPCS83 Texas North Central zone (US survey foot)",
        "method": {
            "name": "Lambert Conic Conformal (2SP)",
            "id": {
                "authority": "EPSG",
                "code": 9802
            }
        },
        "parameters": [
            {
                "name": "Latitude of false origin",
                "value": 31.6666666666667,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8821
                }
            },
            {
                "name": "Longitude of false origin",
                "value": -98.5,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8822
                }
            },
            {
                "name": "Latitude of 1st standard parallel",
                "value": 33.9666666666667,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8823
                }
            },
            {
                "name": "Latitude of 2nd standard parallel",
                "value": 32.1333333333333,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8824
                }
            },
            {
                "name": "Easting at false origin",
                "value": 1968500,
                "unit": {
                    "type": "LinearUnit",
                    "name": "US survey foot",
                    "conversion_factor": 0.304800609601219
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8826
                }
            },
            {
                "name": "Northing at false origin",
                "value": 6561666.667,
                "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
                }
            }
        ]
    },
    "scope": "Engineering survey, topographic mapping.",
    "area": "United States (USA) - Texas - counties of: Andrews; Archer; Bailey; Baylor; Borden; Bowie; Callahan; Camp; Cass; Clay; Cochran; Collin; Cooke; Cottle; Crosby; Dallas; Dawson; Delta; Denton; Dickens; Eastland; Ellis; Erath; Fannin; Fisher; Floyd; Foard; Franklin; Gaines; Garza; Grayson; Gregg; Hale; Hardeman; Harrison; Haskell; Henderson; Hill; Hockley; Hood; Hopkins; Howard; Hunt; Jack; Johnson; Jones; Kaufman; Kent; King; Knox; Lamar; Lamb; Lubbock; Lynn; Marion; Martin; Mitchell; Montague; Morris; Motley; Navarro; Nolan; Palo Pinto; Panola; Parker; Rains; Red River; Rockwall; Rusk; Scurry; Shackelford; Smith; Somervell; Stephens; Stonewall; Tarrant; Taylor; Terry; Throckmorton; Titus; Upshur; Van Zandt; Wichita; Wilbarger; Wise; Wood; Yoakum; Young.",
    "bbox": {
        "south_latitude": 31.72,
        "west_longitude": -103.07,
        "north_latitude": 34.58,
        "east_longitude": -94
    },
    "id": {
        "authority": "EPSG",
        "code": 2917
    }
}

Definition: GeoServer

2917=PROJCS["NAD83(HARN) / Texas North Central (ftUS)",GEOGCS["NAD83(HARN)",DATUM["NAD83_High_Accuracy_Reference_Network",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4152"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",31.6666666666667],PARAMETER["central_meridian",-98.5],PARAMETER["standard_parallel_1",33.9666666666667],PARAMETER["standard_parallel_2",32.1333333333333],PARAMETER["false_easting",1968500],PARAMETER["false_northing",6561666.667],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2917"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_0=31.6666666666667"
	"lon_0=-98.5"
	"lat_1=33.9666666666667"
	"lat_2=32.1333333333333"
	"x_0=600000"
	"y_0=2000000.0001016"
	"ellps=GRS80"
	"towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0"
	"units=us-ft"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_0=31.6666666666667 +lon_0=-98.5 +lat_1=33.9666666666667 +lat_2=32.1333333333333 +x_0=600000 +y_0=2000000.0001016 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=us-ft +no_defs +type=crs">
	<Layer srs="+proj=lcc +lat_0=31.6666666666667 +lon_0=-98.5 +lat_1=33.9666666666667 +lat_2=32.1333333333333 +x_0=600000 +y_0=2000000.0001016 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +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 ( 2917, 'EPSG', 2917, '+proj=lcc +lat_0=31.6666666666667 +lon_0=-98.5 +lat_1=33.9666666666667 +lat_2=32.1333333333333 +x_0=600000 +y_0=2000000.0001016 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83(HARN) / Texas North Central (ftUS)",GEOGCS["NAD83(HARN)",DATUM["NAD83_High_Accuracy_Reference_Network",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4152"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",31.6666666666667],PARAMETER["central_meridian",-98.5],PARAMETER["standard_parallel_1",33.9666666666667],PARAMETER["standard_parallel_2",32.1333333333333],PARAMETER["false_easting",1968500],PARAMETER["false_northing",6561666.667],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2917"]]');