EPSG systems

EPSG:2317 PSAD56 / ICN Regional

Projected system (Lambert Conic Conformal (2SP)) in use: Venezuela - onshore. The full definition below, and conversion in one click.

System record
CodeEPSG:2317
NamePSAD56 / ICN Regional
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use Venezuela - onshore
Bounds W -73,38° · S 0,64° · E -59,80° · N 12,25°
Countries Venezuela
DatumProvisional South American Datum 1956
Ellipsoid International 1924 a = 6378388 m · 1/f = 297
Base geographic system EPSG:4248 — PSAD56
Unit metre (X east, Y north)
Transformation to WGS 84 PSAD56 to WGS 84 (9) (EPSG:1209) — accuracy 23 m
ScopeTopographic and geological mapping.

Projection parameters

ParameterValueUnit
Latitude of false origin6degree
Longitude of false origin-66degree
Latitude of 1st standard parallel9degree
Latitude of 2nd standard parallel3degree
Easting at false origin1000000metre
Northing at false origin1000000metre

proj4 definition

+proj=lcc +lat_0=6 +lon_0=-66 +lat_1=9 +lat_2=3 +x_0=1000000 +y_0=1000000 +ellps=intl +units=m +towgs84=-295,173,-371 +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:2317.

WKT (ESRI format, the .prj content)

PROJCS["PSAD_1956_ICN_Regional",GEOGCS["GCS_Provisional_S_American_1956",DATUM["D_Provisional_S_American_1956",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1000000.0],PARAMETER["False_Northing",1000000.0],PARAMETER["Central_Meridian",-66.0],PARAMETER["Standard_Parallel_1",9.0],PARAMETER["Standard_Parallel_2",3.0],PARAMETER["Latitude_Of_Origin",6.0],UNIT["Meter",1.0]]

All systems — Venezuela

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