EPSG:31983, SIRGAS 2000 / UTM zone 23S
SIRGAS 2000 / UTM zone 23S, the grid of much of southeast Brazil, including São Paulo, Rio de Janeiro and Minas Gerais, for land between 48° and 42° west.
Parameters
Read from the PROJ definition the converter above runs.
- Projection
- UTM zone 23S
- Ellipsoid
- GRS 1980
- Shift to WGS 84
- None in this definition: the datum sits within two metres of WGS 84
- Central meridian
- -45°
- Latitude of origin
- 0°
- Scale factor
- 0.9996
- False easting
- 500,000 m
- False northing
- 10,000,000 m
- Units
- metres
PROJ definition
+proj=utm +zone=23 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs
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AI AgentFrequently asked questions
What is EPSG:31983?
SIRGAS 2000 / UTM zone 23S, the grid of much of southeast Brazil, including São Paulo, Rio de Janeiro and Minas Gerais, for land between 48° and 42° west.
What are the units and axis order of EPSG:31983?
Metres, counted from a false origin of 500,000 m east and 10,000,000 m north. Most GIS software writes easting first, then northing; check the order of your source data when a point lands in the wrong place.
How do I use EPSG:31983 in QGIS?
To show the map in it: Project > Properties > CRS, search 31983. To save a layer in it: right-click the layer, Export > Save Features As, and pick EPSG:31983. Set Layer CRS only labels a file whose system is missing; it does not move the data.
Is EPSG:31983 the same as WGS 84?
Nearly: its datum sits within two metres of WGS 84, so the converter applies no shift between them. For survey-grade work, use the official transformation of the national mapping agency.