EPSG systems

EPSG:4661 LKS-92

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

System record
CodeEPSG:4661
NameLKS-92
TypeGeographic system
Area of use Latvia
Latvia - onshore and offshore.
Bounds W 19,06° · S 55,67° · E 28,24° · N 58,09°
Countries Latvia
DatumLatvian geodetic coordinate system 1992
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Unit degree (Lat north, Lon east)
Transformation to WGS 84 LKS-92 to WGS 84 (1) (EPSG:1958) — accuracy 1 m
ScopeHorizontal component of 3D system.

proj4 definition

+proj=longlat +ellps=GRS80 +towgs84=0,0,0 +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:4661.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_LKS_1992",DATUM["D_Latvia_1992",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Latvia

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