EPSG:2049 Hartebeesthoek94 / Lo21
Système projeté (Transverse Mercator (South Orientated)) en usage : South Africa - 20°E to 22°E. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:2049 |
|---|---|
| Nom | Hartebeesthoek94 / Lo21 |
| Type | Système projeté — Transverse Mercator (South Orientated) |
| Zone d'usage |
South Africa - 20°E to 22°E South Africa - onshore between 20°E and 22°E. |
| Emprise | O 19,99° · S -34,88° · E 22,01° · N -24,76° |
| Pays | Afrique du Sud |
| Datum | Hartebeesthoek94 |
| Ellipsoïde | WGS 84 a = 6378137 m · 1/f = 298.257223563 |
| Système géographique de base | EPSG:4148 — Hartebeesthoek94 |
| Unité | metre (Y west, X south) |
| Transformation vers WGS 84 | Hartebeesthoek94 to WGS 84 (1) (EPSG:1505) — précision 1 m |
| Usage | Cadastre, engineering survey, topographic mapping (large and medium scale). |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 21 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 0 | metre |
| False northing | 0 | metre |
Définition proj4
+proj=tmerc +axis=wsu +lat_0=0 +lon_0=21 +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +units=m +towgs84=0,0,0 +no_defs
À coller dans QGIS, proj4js, PostGIS (spatial_ref_sys) ou GDAL. +towgs84 porte la transformation EPSG vers WGS 84 ; le code officiel reste EPSG:2049.
WKT (format ESRI, contenu du .prj)
PROJCS["Hartebeesthoek94_Lo21",GEOGCS["GCS_Hartebeesthoek_1994",DATUM["D_Hartebeesthoek_1994",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",0.0],PARAMETER["central_meridian",21.0],PARAMETER["scale_factor",1.0],PARAMETER["false_easting",0.0],PARAMETER["false_northing",0.0],UNIT["Meter",1.0]]
Autres systèmes — Afrique du Sud
- EPSG:2047Hartebeesthoek94 / Lo17
- EPSG:2048Hartebeesthoek94 / Lo19
- EPSG:2050Hartebeesthoek94 / Lo23
- EPSG:2051Hartebeesthoek94 / Lo25
- EPSG:2052Hartebeesthoek94 / Lo27
- EPSG:2053Hartebeesthoek94 / Lo29
- EPSG:2054Hartebeesthoek94 / Lo31
- EPSG:2055Hartebeesthoek94 / Lo33
- EPSG:4148Hartebeesthoek94
- EPSG:9221Hartebeesthoek94 / ZAF BSU Albers 25E
- EPSG:9222Hartebeesthoek94 / ZAF BSU Albers 44E
- EPSG:22277Cape / Lo17
- EPSG:22279Cape / Lo19
- EPSG:22281Cape / Lo21
- EPSG:22283Cape / Lo23
- EPSG:22285Cape / Lo25
- EPSG:22287Cape / Lo27
- EPSG:22289Cape / Lo29
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.