EPSG systems

EPSG:23841 DGN95 / Indonesia TM-3 zone 52.1

Projected system (Transverse Mercator) in use: Indonesia - 126°E to 129°E onshore. The full definition below, and conversion in one click.

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System record
Code	EPSG:23841
Name	DGN95 / Indonesia TM-3 zone 52.1
Type	Projected system — Transverse Mercator
Area of use	Indonesia - 126°E to 129°E onshore Indonesia - onshore between 126°E and 129°E.
Bounds	W 126,00° · S -8,32° · E 129,00° · N 4,59°
Countries	Indonesia
Datum	Datum Geodesi Nasional 1995
Ellipsoid	WGS 84 a = 6378137 m · 1/f = 298.257223563
Base geographic system	EPSG:4755 — DGN95
Unit	metre (X east, Y north)
Transformation to WGS 84	DGN95 to WGS 84 (1) (EPSG:15912) — accuracy 1 m
Scope	Cadastre.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	127.5	degree
Scale factor at natural origin	0.9999	unity
False easting	200000	metre
False northing	1500000	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=127.5 +k=0.9999 +x_0=200000 +y_0=1500000 +ellps=WGS84 +units=m +towgs84=0,0,0 +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:23841.

WKT (ESRI format, the .prj content)

PROJCS["DGN_1995_Indonesia_TM-3_Zone_52.1",GEOGCS["GCS_DGN_1995",DATUM["D_Datum_Geodesi_Nasional_1995",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",200000.0],PARAMETER["False_Northing",1500000.0],PARAMETER["Central_Meridian",127.5],PARAMETER["Scale_Factor",0.9999],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.

Projection parameters

proj4 definition

WKT (ESRI format, the .prj content)

Other systems — Indonesia