EPSG systems

EPSG:22173 POSGAR 98 / Argentina 3

Projected system (Transverse Mercator) in use: Argentina - 67.5°W to 64.5°W onshore. The full definition below, and conversion in one click.

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System record
Code	EPSG:22173
Name	POSGAR 98 / Argentina 3
Type	Projected system — Transverse Mercator
Area of use	Argentina - 67.5°W to 64.5°W onshore Argentina - between 67°30'W and 64°30'W, onshore.
Bounds	W -67,50° · S -55,11° · E -64,49° · N -21,78°
Countries	Argentina
Datum	Posiciones Geodesicas Argentinas 1998
Ellipsoid	GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system	EPSG:4190 — POSGAR 98
Unit	metre (X north, Y east)
Transformation to WGS 84	POSGAR 98 to WGS 84 (1) (EPSG:1773) — accuracy 1 m
Scope	Engineering survey, topographic mapping.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	-90	degree
Longitude of natural origin	-66	degree
Scale factor at natural origin	1	unity
False easting	3500000	metre
False northing	0	metre

proj4 definition

+proj=tmerc +lat_0=-90 +lon_0=-66 +k=1 +x_0=3500000 +y_0=0 +ellps=GRS80 +units=m +towgs84=0,0,0 +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:22173.

WKT (ESRI format, the .prj content)

PROJCS["POSGAR_1998_Argentina_Zone_3",GEOGCS["GCS_POSGAR_1998",DATUM["D_POSGAR_1998",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",3500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-66.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",-90.0],UNIT["Meter",1.0]]

All systems — Argentina

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 — Argentina