EPSG:31991 SIRGAS 1995 / UTM zone 22N
Projected system (Transverse Mercator) in use: South America - 54°W to 48°W, N hemisphere. The full definition below, and conversion in one click.
| Code | EPSG:31991 |
|---|---|
| Name | SIRGAS 1995 / UTM zone 22N |
| Type | Projected system — Transverse Mercator |
| Area of use |
South America - 54°W to 48°W, N hemisphere South America between 54°W and 48°W, northern hemisphere, onshore and offshore. |
| Bounds | W -54,00° · S 0,00° · E -48,00° · N 9,24° |
| Countries | World |
| Datum | Sistema de Referencia Geocentrico para America del Sur 1995 |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:4170 — SIRGAS 1995 |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | SIRGAS 1995 to WGS 84 (1) (EPSG:1581) — accuracy 2 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -51 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=22 +ellps=GRS80 +units=m +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:31991.
WKT (ESRI format, the .prj content)
PROJCS["SIRGAS_UTM_Zone_22N",GEOGCS["GCS_SIRGAS",DATUM["D_SIRGAS",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-51.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — World
- EPSG:31972SIRGAS 2000 / UTM zone 18N
- EPSG:31973SIRGAS 2000 / UTM zone 19N
- EPSG:31974SIRGAS 2000 / UTM zone 20N
- EPSG:31975SIRGAS 2000 / UTM zone 21N
- EPSG:31977SIRGAS 2000 / UTM zone 17S
- EPSG:31986SIRGAS 1995 / UTM zone 17N
- EPSG:31987SIRGAS 1995 / UTM zone 18N
- EPSG:31988SIRGAS 1995 / UTM zone 19N
- EPSG:31989SIRGAS 1995 / UTM zone 20N
- EPSG:31990SIRGAS 1995 / UTM zone 21N
- EPSG:31993SIRGAS 1995 / UTM zone 18S
- EPSG:31994SIRGAS 1995 / UTM zone 19S
- EPSG:31995SIRGAS 1995 / UTM zone 20S
- EPSG:31996SIRGAS 1995 / UTM zone 21S
- EPSG:31997SIRGAS 1995 / UTM zone 22S
- EPSG:31998SIRGAS 1995 / UTM zone 23S
- EPSG:31999SIRGAS 1995 / UTM zone 24S
- EPSG:32000SIRGAS 1995 / UTM zone 25S
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.