EPSG systems

EPSG:4691 Moorea 87

Geographic system in latitude and longitude, in use: French Polynesia - Society Islands - Moorea. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4691
NameMoorea 87
TypeGeographic system
Area of use French Polynesia - Society Islands - Moorea
Bounds W -150,00° · S -17,63° · E -149,73° · N -17,41°
Countries French Polynesia
DatumMoorea 87
Ellipsoid International 1924 a = 6378388 m · 1/f = 297
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Moorea 87 to WGS 84 (2) (EPSG:8832) — accuracy 1 m
ScopeHydrography, topographic mapping.

proj4 definition

+proj=longlat +ellps=intl +towgs84=218.769,150.75,176.75,3.5231,2.0037,1.288,10.9817 +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:4691.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Moorea_1987",DATUM["D_Moorea_1987",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — French Polynesia

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