EPSG systems

EPSG:4253 Luzon 1911

Geographic system in latitude and longitude, in use: Philippines - onshore. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4253
NameLuzon 1911
TypeGeographic system
Area of use Philippines - onshore
Bounds W 116,89° · S 4,99° · E 126,65° · N 19,45°
Countries Philippines
DatumLuzon 1911
Ellipsoid Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Luzon 1911 to WGS 84 (1) (EPSG:1161) — accuracy 17 m
ScopeGeodesy.

proj4 definition

+proj=longlat +ellps=clrk66 +towgs84=-133,-77,-51 +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:4253.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Luzon_1911",DATUM["D_Luzon_1911",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Philippines

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