EPSG systems

EPSG:22091 Camacupa 1948 / TM 11.30 SE

Projected system (Transverse Mercator) in use: Angola - offshore block 15. The full definition below, and conversion in one click.

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System record
Code	EPSG:22091
Name	Camacupa 1948 / TM 11.30 SE
Type	Projected system — Transverse Mercator
Area of use	Angola - offshore block 15
Bounds	W 10,83° · S -6,59° · E 11,67° · N -6,03°
Countries	Angola
Datum	Camacupa 1948
Ellipsoid	Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465
Base geographic system	EPSG:4220 — Camacupa 1948
Unit	metre (E east, N north)
Transformation to WGS 84	Camacupa 1948 to WGS 84 (10) (EPSG:1327) — accuracy 5 m
Scope	Oil and gas exploration and production.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	11.5	degree
Scale factor at natural origin	0.9996	unity
False easting	500000	metre
False northing	10000000	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=11.5 +k=0.9996 +x_0=500000 +y_0=10000000 +a=6378249.145 +rf=293.465 +units=m +towgs84=-50.9,-347.6,-231 +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:22091.

WKT (ESRI format, the .prj content)

PROJCS["Camacupa_TM_11_30_SE",GEOGCS["GCS_Camacupa",DATUM["D_Camacupa",SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",11.5],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Angola

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 — Angola