EPSG systems

EPSG:4131 Indian 1960

Geographic system in latitude and longitude, in use: Asia - Cambodia and Vietnam - onshore & Cuu Long basin. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4131
NameIndian 1960
TypeGeographic system
Area of use Asia - Cambodia and Vietnam - onshore & Cuu Long basin
Cambodia - onshore; Vietnam - onshore and offshore Cuu Long basin.
Bounds W 102,14° · S 7,99° · E 110,00° · N 23,40°
Countries Cambodia, Vietnam
DatumIndian 1960
Ellipsoid Everest 1830 (1937 Adjustment) a = 6377276.345 m · 1/f = 300.8017
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Indian 1960 to WGS 84 (2) (EPSG:1542) — accuracy 44 m
ScopeGeodesy.

proj4 definition

+proj=longlat +ellps=evrst30 +towgs84=198,881,317 +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:4131.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Indian_1960",DATUM["D_Indian_1960",SPHEROID["Everest_Adjustment_1937",6377276.345,300.8017]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Cambodia

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