EPSG systems

EPSG:4397 Kertau 1968 / Perak Revised Grid

Projected system (Cassini-Soldner) in use: Malaysia - West Malaysia - Perak. The full definition below, and conversion in one click.

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System record
Code	EPSG:4397
Name	Kertau 1968 / Perak Revised Grid
Type	Projected system — Cassini-Soldner
Area of use	Malaysia - West Malaysia - Perak
Bounds	W 100,07° · S 3,66° · E 102,00° · N 5,92°
Countries	Malaysia
Datum	Kertau 1968
Ellipsoid	Everest 1830 Modified a = 6377304.063 m · 1/f = 300.8017
Base geographic system	EPSG:4245 — Kertau 1968
Unit	metre (E east, N north)
Transformation to WGS 84	Kertau 1968 to WGS 84 (1) (EPSG:1158) — accuracy 15 m
Scope	Cadastre.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	4.859380555555555	degree
Longitude of natural origin	100.81676666666667	degree
False easting	0	metre
False northing	133453.669	metre

proj4 definition

+proj=cass +lat_0=4.85938055555556 +lon_0=100.816766666667 +x_0=0 +y_0=133453.669 +ellps=evrst48 +units=m +towgs84=-11,851,5 +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:4397.

WKT (ESRI format, the .prj content)

PROJCS["Kertau_1968_Perak_Revised_Grid",GEOGCS["GCS_Kertau",DATUM["D_Kertau",SPHEROID["Everest_1830_Modified",6377304.063,300.8017]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Cassini"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",133453.669],PARAMETER["Central_Meridian",100.816766666667],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",4.85938055555556],UNIT["Meter",1.0]]

All systems — Malaysia

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 — Malaysia