EPSG systems

EPSG:29850 Timbalai 1948 / UTM zone 50N

Projected system (Transverse Mercator) in use: Asia - Brunei and East Malaysia - 114°E to 120°E. The full definition below, and conversion in one click.

System record
CodeEPSG:29850
NameTimbalai 1948 / UTM zone 50N
TypeProjected system — Transverse Mercator
Area of use Asia - Brunei and East Malaysia - 114°E to 120°E
Brunei - onshore and offshore east of 114°E; Malaysia - East Malaysia (Sabah, Sarawak) onshore and offshore east of 114°E).
Bounds W 114,00° · S 1,43° · E 119,61° · N 7,67°
Countries Brunei, Malaysia
DatumTimbalai 1948
Ellipsoid Everest 1830 (1967 Definition) a = 6377298.556 m · 1/f = 300.8017
Base geographic system EPSG:4298 — Timbalai 1948
Unit metre (E east, N north)
Transformation to WGS 84 Timbalai 1948 to WGS 84 (1) (EPSG:1228) — accuracy 19 m
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin117degree
Scale factor at natural origin0.9996unity
False easting500000metre
False northing0metre

proj4 definition

+proj=utm +zone=50 +ellps=evrstSS +units=m +towgs84=-679,669,-48 +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:29850.

WKT (ESRI format, the .prj content)

PROJCS["Timbalai_1948_UTM_Zone_50N",GEOGCS["GCS_Timbalai_1948",DATUM["D_Timbalai_1948",SPHEROID["Everest_Definition_1967",6377298.556,300.8017]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",117.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Brunei

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