EPSG:20050 NAD83(2011) / Amtrak NECCS21 (ft)
Projected system (Hotine Oblique Mercator (variant B)) in use: USA - Amtrak NE corridor. The full definition below, and conversion in one click.
| Code | EPSG:20050 |
|---|---|
| Name | NAD83(2011) / Amtrak NECCS21 (ft) |
| Type | Projected system — Hotine Oblique Mercator (variant B) |
| Area of use |
USA - Amtrak NE corridor United States (USA) - parts of Connecticut, Delaware, District of Columbia, Maryland, Massachusetts, New Jersey, New York, Pennsylvania, Rhode Island and Virginia on or related to the Amtrak northeast corridor rail route from Boston to Washington DC via New York and Philadelphia. |
| Bounds | W -78,51° · S 38,64° · E -70,48° · N 42,74° |
| 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 | foot (X east, Y north) |
| Transformation to WGS 84 | NAD83(2011) to WGS 84 (1) (EPSG:9774) — accuracy 2 m |
| Scope | Engineering survey and topographic mapping for railway applications. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of projection centre | 40.833333333333336 | degree |
| Longitude of projection centre | -74 | degree |
| Azimuth at projection centre | 58 | degree |
| Angle from Rectified to Skew Grid | 58 | degree |
| Scale factor at projection centre | 0.99999 | unity |
| Easting at projection centre | 1500000 | foot |
| Northing at projection centre | 1500000 | foot |
proj4 definition
+proj=omerc +lat_0=40.8333333333333 +lonc=-74 +alpha=58 +gamma=58 +k=0.99999 +x_0=457200 +y_0=457200 +ellps=GRS80 +units=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:20050.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_(2011)_Amtrak_NECCS21_(ft)",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["Hotine_Oblique_Mercator_Azimuth_Center"],PARAMETER["False_Easting",1500000.0],PARAMETER["False_Northing",1500000.0],PARAMETER["Scale_Factor",0.99999],PARAMETER["Azimuth",58.0],PARAMETER["Longitude_Of_Center",-74.0],PARAMETER["Latitude_Of_Center",40.8333333333333],UNIT["foot",0.3048]]Other systems — United States
- EPSG:23301NAD83(2011) / ICS83-Freeport (ftUS)
- EPSG:23302NAD83(2011) / ICS83-Rockford (ftUS)
- EPSG:23303NAD83(2011) / ICS83-Aurora (ftUS)
- EPSG:23304NAD83(2011) / ICS83-Chicago (ftUS)
- EPSG:23305NAD83(2011) / ICS83-Moline (ftUS)
- EPSG:23306NAD83(2011) / ICS83-Sterling (ftUS)
- EPSG:23307NAD83(2011) / ICS83-Ottawa (ftUS)
- EPSG:23308NAD83(2011) / ICS83-Joliet (ftUS)
- EPSG:23309NAD83(2011) / ICS83-Monmouth (ftUS)
- EPSG:23310NAD83(2011) / ICS83-Galesburg (ftUS)
- EPSG:23311NAD83(2011) / ICS83-Peoria (ftUS)
- EPSG:23312NAD83(2011) / ICS83-Eureka (ftUS)
- EPSG:23313NAD83(2011) / ICS83-Bloomington (ftUS)
- EPSG:23314NAD83(2011) / ICS83-Pontiac (ftUS)
- EPSG:23315NAD83(2011) / ICS83-Watseka (ftUS)
- EPSG:23316NAD83(2011) / ICS83-Quincy (ftUS)
- EPSG:23317NAD83(2011) / ICS83-Macomb (ftUS)
- EPSG:23318NAD83(2011) / ICS83-Lincoln (ftUS)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.