EPSG systems

EPSG:3440 PSD93 / UTM zone 40N

Projected system (Transverse Mercator) in use: Oman - onshore east of 54°E. The full definition below, and conversion in one click.

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System record
Code	EPSG:3440
Name	PSD93 / UTM zone 40N
Type	Projected system — Transverse Mercator
Area of use	Oman - onshore east of 54°E Oman - onshore east of 54°E. Includes Musandam and the Kuria Muria (Al Hallaniyah) islands.
Bounds	W 54,00° · S 16,89° · E 59,91° · N 26,58°
Countries	Oman
Datum	PDO Survey Datum 1993
Ellipsoid	Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465
Base geographic system	EPSG:4134 — PSD93
Unit	metre (E east, N north)
Transformation to WGS 84	PSD93 to WGS 84 (1) (EPSG:1439) — accuracy 0.5 m
Scope	Oil and gas exploration and production.

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	57	degree
Scale factor at natural origin	0.9996	unity
False easting	500000	metre
False northing	0	metre

proj4 definition

+proj=utm +zone=40 +a=6378249.145 +rf=293.465 +units=m +towgs84=-180.624,-225.516,173.919,-0.81,-1.898,8.336,16.71006 +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:3440.

WKT (ESRI format, the .prj content)

PROJCS["PDO_1993_UTM_Zone_40N",GEOGCS["GCS_PDO_1993",DATUM["D_PDO_1993",SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",57.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Oman

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 — Oman