EPSG systems

EPSG:4760 WGS 66

Geographic system in latitude and longitude, in use: World. Datum, ellipsoid and transformation to WGS 84 below.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

System record
CodeEPSG:4760
NameWGS 66
TypeGeographic system
Area of use World
Bounds W -180,00° · S -90,00° · E 180,00° · N 90,00°
Countries World
DatumWorld Geodetic System 1966
Ellipsoid NWL 9D a = 6378145 m · 1/f = 298.25
Unit degree (Lat north, Lon east)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeHorizontal component of 3D system.

proj4 definition

+proj=longlat +ellps=NWL9D +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:4760.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_WGS_1966",DATUM["D_WGS_1966",SPHEROID["NWL_9D",6378145.0,298.25]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — World

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