EPSG systems

EPSG:5016 PTRA08 / UTM zone 28N

Projected system (Transverse Mercator) in use: Portugal - Madeira and EEZ E of 18°W. The full definition below, and conversion in one click.

Convert coordinates Open in Carte Download the .prj

System record
Code	EPSG:5016
Name	PTRA08 / UTM zone 28N
Type	Projected system — Transverse Mercator
Area of use	Portugal - Madeira and EEZ E of 18°W Portugal - Madeira, Porto Santo, Desertas and Selvagens islands and surrounding EEZ east of 18°W.
Bounds	W -18,00° · S 29,24° · E -12,48° · N 36,46°
Countries	Portugal
Datum	Autonomous Regions of Portugal 2008
Ellipsoid	GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system	EPSG:5013 — PTRA08
Unit	metre (E east, N north)
Transformation to WGS 84	PTRA08 to WGS 84 (1) (EPSG:4905) — accuracy 1 m
Scope	Topographic mapping.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	-15	degree
Scale factor at natural origin	0.9996	unity
False easting	500000	metre
False northing	0	metre

proj4 definition

+proj=utm +zone=28 +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:5016.

WKT (ESRI format, the .prj content)

PROJCS["PTRA08_UTM_Zone_28N",GEOGCS["GCS_PTRA08",DATUM["D_PTRA08",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",-15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Portugal

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 — Portugal