EPSG systems

EPSG:2309 WGS 84 / TM 116 SE

Projected system (Transverse Mercator) in use: Indonesia - Bali Sea west. The full definition below, and conversion in one click.

System record
CodeEPSG:2309
NameWGS 84 / TM 116 SE
TypeProjected system — Transverse Mercator
Area of use Indonesia - Bali Sea west
Indonesia - offshore Madura Strait and western Bali Sea.
Bounds W 112,80° · S -8,46° · E 117,01° · N -6,80°
Countries Indonesia
DatumWorld Geodetic System 1984
Ellipsoid WGS 84 a = 6378137 m · 1/f = 298.257223563
Base geographic system EPSG:4326 — WGS 84
Unit metre (E east, N north)
Transformation to WGS 84 None: this is WGS 84
ScopeOil and gas exploration and production.

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin116degree
Scale factor at natural origin0.9996unity
False easting500000metre
False northing10000000metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=116 +k=0.9996 +x_0=500000 +y_0=10000000 +datum=WGS84 +units=m +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:2309.

WKT (ESRI format, the .prj content)

PROJCS["WGS_1984_TM_116_SE",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",116.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Indonesia

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