EPSG systems

EPSG:3727 Reunion 1947 / TM Reunion

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

System record
CodeEPSG:3727
NameReunion 1947 / TM Reunion
TypeProjected system — Transverse Mercator
Area of use Reunion - onshore
Bounds W 55,16° · S -21,42° · E 55,91° · N -20,81°
Countries Réunion
DatumReunion 1947
Ellipsoid International 1924 a = 6378388 m · 1/f = 297
Base geographic system EPSG:4626 — Reunion 1947
Unit metre (X east, Y north)
Transformation to WGS 84 Reunion 1947 to WGS 84 (2) (EPSG:15751) — accuracy 44 m
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of natural origin-21.116666666666667degree
Longitude of natural origin55.53333333333333degree
Scale factor at natural origin1unity
False easting160000metre
False northing50000metre

proj4 definition

+proj=tmerc +lat_0=-21.1166666666667 +lon_0=55.5333333333333 +k=1 +x_0=160000 +y_0=50000 +ellps=intl +units=m +towgs84=94,-948,-1262 +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:3727.

WKT (ESRI format, the .prj content)

PROJCS["Reunion_1947_TM_Reunion",GEOGCS["GCS_Reunion_1947",DATUM["D_Reunion_1947",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",160000.0],PARAMETER["False_Northing",50000.0],PARAMETER["Central_Meridian",55.5333333333333],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",-21.1166666666667],UNIT["Meter",1.0]]

All systems — Réunion

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