EPSG systems

EPSG:9470 SRGI2013

Geographic system in latitude and longitude, in use: Indonesia. 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:9470
NameSRGI2013
TypeGeographic system
Area of use Indonesia
Indonesia - onshore and offshore.
Bounds W 92,01° · S -13,95° · E 141,46° · N 7,79°
Countries Indonesia
DatumSistem Referensi Geospasial Indonesia 2013
Ellipsoid WGS 84 a = 6378137 m · 1/f = 298.257223563
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=WGS84 +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:9470.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_SRGI2013",DATUM["Sistem_Referensi_Geospasial_Indonesia_2013",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Indonesia

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