EPSG:23331 NAD83(2011) / ICS83-Olney (ftUS)
Projected system (Lambert Conic Conformal (1SP)) in use: USA - Illinois - Olney zone. The full definition below, and conversion in one click.
| Code | EPSG:23331 |
|---|---|
| Name | NAD83(2011) / ICS83-Olney (ftUS) |
| Type | Projected system — Lambert Conic Conformal (1SP) |
| Area of use |
USA - Illinois - Olney zone United States (USA) - Illinois - counties of Clay, Edwards, Lawrence, Richland, Wabash and Wayne. |
| Bounds | W -88,71° · S 38,23° · E -87,49° · N 38,92° |
| Countries | United States |
| Datum | NAD83 (National Spatial Reference System 2011) |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:6318 — NAD83(2011) |
| Unit | US survey foot (N north, E east) |
| Transformation to WGS 84 | NAD83(2011) to WGS 84 (1) (EPSG:9774) — accuracy 2 m |
| Scope | Engineering survey, topographic mapping (large and medium scale). |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 38.55 | degree |
| Longitude of natural origin | -88.15 | degree |
| Scale factor at natural origin | 1.000013 | unity |
| False easting | 1247000 | US survey foot |
| False northing | 3773000 | US survey foot |
proj4 definition
+proj=lcc +lat_1=38.55 +lat_0=38.55 +lon_0=-88.15 +k_0=1.000013 +x_0=380086.36017272 +y_0=1150012.7000254 +ellps=GRS80 +units=us-ft +towgs84=0,0,0 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:23331.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_(2011)_ICS_Olney_(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",1247000.0],PARAMETER["False_Northing",3773000.0],PARAMETER["Central_Meridian",-88.15],PARAMETER["Standard_Parallel_1",38.55],PARAMETER["Scale_Factor",1.000013],PARAMETER["Latitude_Of_Origin",38.55],UNIT["US survey foot",0.304800609601219]]Other systems — United States
- EPSG:23315NAD83(2011) / ICS83-Watseka (ftUS)
- EPSG:23316NAD83(2011) / ICS83-Quincy (ftUS)
- EPSG:23317NAD83(2011) / ICS83-Macomb (ftUS)
- EPSG:23318NAD83(2011) / ICS83-Lincoln (ftUS)
- EPSG:23319NAD83(2011) / ICS83-Decatur (ftUS)
- EPSG:23320NAD83(2011) / ICS83-Champaign (ftUS)
- EPSG:23321NAD83(2011) / ICS83-Jacksonville (ftUS)
- EPSG:23322NAD83(2011) / ICS83-Springfield (ftUS)
- EPSG:23323NAD83(2011) / ICS83-Charleston (ftUS)
- EPSG:23324NAD83(2011) / ICS83-Jerseyville (ftUS)
- EPSG:23325NAD83(2011) / ICS83-Carlinville (ftUS)
- EPSG:23326NAD83(2011) / ICS83-Taylorville (ftUS)
- EPSG:23327NAD83(2011) / ICS83-Effingham (ftUS)
- EPSG:23328NAD83(2011) / ICS83-Robinson (ftUS)
- EPSG:23329NAD83(2011) / ICS83-Belleville (ftUS)
- EPSG:23330NAD83(2011) / ICS83-Mount Vernon (ftUS)
- EPSG:23332NAD83(2011) / ICS83-Carbondale (ftUS)
- EPSG:23333NAD83(2011) / ICS83-Metropolis (ftUS)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.