EPSG:4124 RT90
Geographic system in latitude and longitude, in use: Sweden. Datum, ellipsoid and transformation to WGS 84 below.
| Code | EPSG:4124 |
|---|---|
| Name | RT90 |
| Type | Geographic system |
| Area of use |
Sweden Sweden - onshore and offshore. |
| Bounds | W 10,03° · S 54,96° · E 24,17° · N 69,07° |
| Countries | Sweden |
| Datum | Rikets koordinatsystem 1990 |
| Ellipsoid | Bessel 1841 a = 6377397.155 m · 1/f = 299.1528128 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | RT90 to WGS 84 (2) (EPSG:1896) — accuracy 1 m |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +ellps=bessel +towgs84=414.1,41.3,603.1,-0.855,2.141,-7.023,0 +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:4124.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_RT_1990",DATUM["D_RT_1990",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — Sweden
- EPSG:3024RT90 5 gon O
- EPSG:3025RT38 7.5 gon V
- EPSG:3026RT38 5 gon V
- EPSG:3027RT38 2.5 gon V
- EPSG:3028RT38 0 gon
- EPSG:3029RT38 2.5 gon O
- EPSG:3030RT38 5 gon O
- EPSG:3152ST74
- EPSG:3845SWEREF99 / RT90 7.5 gon V emulation
- EPSG:3846SWEREF99 / RT90 5 gon V emulation
- EPSG:3847SWEREF99 / RT90 2.5 gon V emulation
- EPSG:3848SWEREF99 / RT90 0 gon emulation
- EPSG:3849SWEREF99 / RT90 2.5 gon O emulation
- EPSG:3850SWEREF99 / RT90 5 gon O emulation
- EPSG:3854County ST74
- EPSG:4308RT38
- EPSG:4619SWEREF99
- EPSG:4814RT38 (Stockholm)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.