EPSG:4456 NAD27 / New York Long Island
Projected system (Lambert Conic Conformal (2SP)) in use: USA - New York - SPCS - Long Island. The full definition below, and conversion in one click.
| Code | EPSG:4456 |
|---|---|
| Name | NAD27 / New York Long Island |
| Type | Projected system — Lambert Conic Conformal (2SP) |
| Area of use |
USA - New York - SPCS - Long Island United States (USA) - New York - counties of Bronx; Kings; Nassau; New York; Queens; Richmond; Suffolk. |
| Bounds | W -74,26° · S 40,47° · E -71,80° · N 41,30° |
| Countries | United States |
| Datum | North American Datum 1927 |
| Ellipsoid | Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214 |
| Base geographic system | EPSG:4267 — NAD27 |
| Unit | US survey foot (X east, Y north) |
| Transformation to WGS 84 | NAD27 to WGS 84 (4) (EPSG:1173) — accuracy 10 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of false origin | 40.5 | degree |
| Longitude of false origin | -74 | degree |
| Latitude of 1st standard parallel | 41.03333333333333 | degree |
| Latitude of 2nd standard parallel | 40.666666666666664 | degree |
| Easting at false origin | 2000000 | US survey foot |
| Northing at false origin | 100000 | US survey foot |
proj4 definition
+proj=lcc +lat_0=40.5 +lon_0=-74 +lat_1=41.0333333333333 +lat_2=40.6666666666667 +x_0=609601.219202438 +y_0=30480.0609601219 +a=6378206.4000000004 +rf=294.9786982139 +units=us-ft +towgs84=-8,160,176 +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:4456.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1927_StatePlane_New_York_Long_Island_FIPS_3104",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",2000000.0],PARAMETER["False_Northing",100000.0],PARAMETER["Central_Meridian",-74.0],PARAMETER["Standard_Parallel_1",41.0333333333333],PARAMETER["Standard_Parallel_2",40.6666666666667],PARAMETER["Latitude_Of_Origin",40.5],UNIT["US survey foot",0.304800609601219]]Other systems — United States
- EPSG:4420NAD83 / BLM 60N (ftUS)
- EPSG:4421NAD83 / BLM 1N (ftUS)
- EPSG:4422NAD83 / BLM 2N (ftUS)
- EPSG:4423NAD83 / BLM 3N (ftUS)
- EPSG:4424NAD83 / BLM 4N (ftUS)
- EPSG:4425NAD83 / BLM 5N (ftUS)
- EPSG:4426NAD83 / BLM 6N (ftUS)
- EPSG:4427NAD83 / BLM 7N (ftUS)
- EPSG:4428NAD83 / BLM 8N (ftUS)
- EPSG:4429NAD83 / BLM 9N (ftUS)
- EPSG:4430NAD83 / BLM 10N (ftUS)
- EPSG:4431NAD83 / BLM 11N (ftUS)
- EPSG:4432NAD83 / BLM 12N (ftUS)
- EPSG:4433NAD83 / BLM 13N (ftUS)
- EPSG:4438NAD83 / BLM 18N (ftUS)
- EPSG:4439NAD83 / BLM 19N (ftUS)
- EPSG:4455NAD27 / Pennsylvania South
- EPSG:4457NAD83 / South Dakota North (ftUS)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.