EPSG systems

EPSG:29195 SAD69 / UTM zone 25S

Projected system (Transverse Mercator) in use: Brazil - 36°W to 30°W. The full definition below, and conversion in one click.

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System record
Code	EPSG:29195
Name	SAD69 / UTM zone 25S
Type	Projected system — Transverse Mercator
Area of use	Brazil - 36°W to 30°W Brazil - between 36°W and 30°W, northern and southern hemispheres, onshore and offshore.
Bounds	W -36,00° · S -23,80° · E -29,99° · N 4,19°
Countries	Brazil
Datum	South American Datum 1969
Ellipsoid	GRS 1967 Modified a = 6378160 m · 1/f = 298.25
Base geographic system	EPSG:4618 — SAD69
Unit	metre (E east, N north)
Transformation to WGS 84	SAD69 to WGS 84 (16) (EPSG:5882) — accuracy 5 m
Scope	Engineering survey, topographic mapping.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	-33	degree
Scale factor at natural origin	0.9996	unity
False easting	500000	metre
False northing	10000000	metre

proj4 definition

+proj=utm +zone=25 +south +ellps=aust_SA +units=m +towgs84=-67.35,3.88,-38.22 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:29195.

WKT (ESRI format, the .prj content)

PROJCS["SAD_1969_UTM_Zone_25S",GEOGCS["GCS_South_American_1969",DATUM["D_South_American_1969",SPHEROID["GRS_1967_Truncated",6378160.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",-33.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Brazil

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.

Projection parameters

proj4 definition

WKT (ESRI format, the .prj content)

Other systems — Brazil