Convert Azores Oriental 1995 to PTRA08

Convert coordinates from Azores Oriental 1995 (EPSG:4664) to PTRA08 (EPSG:5013) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-4664-to-epsg-5013

Official EPSG transformations from Azores Oriental 1995 to PTRA08

The EPSG Geodetic Parameter Dataset defines 3 transformations between Azores Oriental 1995 (EPSG:4664) and PTRA08 (EPSG:5013). Each applies to a specific area — pick the one whose area of use covers your data.

Azores Oriental 1995 to PTRA08 (3)

EPSG:5026±0.1 mBest accuracy

Method:: Geocentric translations (geog2D domain)
Area of use:: Portugal - Azores E - Santa Maria onshore
Scope:: Transformation of coordinates at 0.1m level of accuracy.

Parameter	Value	Unit
X-axis translation(tx)	-205.808	metre
Y-axis translation(ty)	140.771	metre
Z-axis translation(tz)	54.326	metre

Derived at 18 points in May 2009. Residuals at 14 test points within 0.1m. Info source also provides a 7-parameter Position Vector transformation of similar accuracy.

Azores Oriental 1995 to PTRA08 (2)

EPSG:5025±0.3 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Portugal - Azores E - S Miguel onshore
Scope:: Transformation of coordinates at 0.3m level of accuracy.

Parameter	Value	Unit
X-axis translation(tx)	-204.519	metre
Y-axis translation(ty)	140.159	metre
Z-axis translation(tz)	55.404	metre

Derived at 36 points in May 2009. Residuals at 43 test points within 0.2m horizontal and 0.3m vertical. Info source also provides a 7-parameter Position Vector transformation of similar accuracy.

Azores Oriental 1995 to PTRA08 (1)

EPSG:5024±2 m

Method:: Geocentric translations (geog2D domain)
Area of use:: Portugal - Azores E - onshore
Scope:: Transformation of coordinates at 2m level of accuracy.

Parameter	Value	Unit
X-axis translation(tx)	-204.926	metre
Y-axis translation(ty)	140.353	metre
Z-axis translation(tz)	55.063	metre

Derived at 53 points in May 2009. Residuals at 58 test points within 0.2m horizontal and 2m vertical. Info source also provides a Position Vector tfm of similar accuracy. See codes 5025-26 for preferred tfms for islands of Sao Miguel and Santa Maria.

Convert EPSG:4664 to EPSG:5013 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4664", "EPSG:5013", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4664 — Azores Oriental 1995

geographic system using latitude and longitude on an ellipsoid · Area of use: Portugal - Azores E - onshore

+proj=longlat +ellps=intl +no_defs +type=crs

More about EPSG:4664 →

Target: EPSG:5013 — PTRA08

geographic system using latitude and longitude on an ellipsoid · Area of use: Portugal - Azores and Madeira

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs

More about EPSG:5013 →

Frequently asked questions

How accurate is converting Azores Oriental 1995 to PTRA08?: The most accurate official EPSG transformation between these systems is accurate to about ±0.1 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation in a desktop GIS.
Does my data leave the browser when I use this converter?: No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.

Need the reverse? Convert EPSG:5013 to EPSG:4664 →