EPSG systems

EPSG:6915 South East Island 1943 / UTM zone 40N

Projected system (Transverse Mercator) in use: Seychelles - Seychelles Bank. The full definition below, and conversion in one click.

System record
CodeEPSG:6915
NameSouth East Island 1943 / UTM zone 40N
TypeProjected system — Transverse Mercator
Area of use Seychelles - Seychelles Bank
Seychelles - Mahe, Silhouette, North, Aride Island, Praslin, La Digue and Frigate islands including adjacent smaller granitic islands on the Seychelles Bank, Bird Island and Denis Island.
Bounds W 55,15° · S -4,86° · E 56,01° · N -3,66°
Countries Seychelles
DatumSouth East Island 1943
Ellipsoid Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465
Base geographic system EPSG:6892 — South East Island 1943
Unit metre (E east, N north)
Transformation to WGS 84 South East Island 1943 to WGS 84 (2) (EPSG:6926) — accuracy 1 m
ScopeCadastre, engineering survey, topographic mapping (large and medium scale).

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin57degree
Scale factor at natural origin0.9996unity
False easting500000metre
False northing0metre

proj4 definition

+proj=utm +zone=40 +a=6378249.145 +rf=293.465 +units=m +towgs84=-76.269,-16.683,68.562,-6.275,10.536,-4.286,-13.686 +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:6915.

WKT (ESRI format, the .prj content)

PROJCS["South_East_Island_1943_UTM_Zone_40N",GEOGCS["GCS_South_East_Island_1943",DATUM["D_South_East_Island_1943",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",0.0],PARAMETER["Central_Meridian",57.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Seychelles

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