EPSG:20050 NAD83(2011) / Amtrak NECCS21 (ft)
Système projeté (Hotine Oblique Mercator (variant B)) en usage : USA - Amtrak NE corridor. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:20050 |
|---|---|
| Nom | NAD83(2011) / Amtrak NECCS21 (ft) |
| Type | Système projeté — Hotine Oblique Mercator (variant B) |
| Zone d'usage |
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. |
| Emprise | O -78,51° · S 38,64° · E -70,48° · N 42,74° |
| Pays | États-Unis |
| Datum | NAD83 (National Spatial Reference System 2011) |
| Ellipsoïde | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Système géographique de base | EPSG:6318 — NAD83(2011) |
| Unité | foot (X east, Y north) |
| Transformation vers WGS 84 | NAD83(2011) to WGS 84 (1) (EPSG:9774) — précision 2 m |
| Usage | Engineering survey and topographic mapping for railway applications. |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| 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 |
Définition proj4
+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_defsÀ coller dans QGIS, proj4js, PostGIS (spatial_ref_sys) ou GDAL. +towgs84 porte la transformation EPSG vers WGS 84 ; le code officiel reste EPSG:20050.
WKT (format ESRI, contenu du .prj)
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]]Autres systèmes — États-Unis
- 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 : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.