EPSG systems

EPSG:22240 NAD83(CSRS)v2 / NB Stereographic

Projected system (Oblique Stereographic) in use: Canada - New Brunswick. The full definition below, and conversion in one click.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

System record
CodeEPSG:22240
NameNAD83(CSRS)v2 / NB Stereographic
TypeProjected system — Oblique Stereographic
Area of use Canada - New Brunswick
Bounds W -69,05° · S 44,56° · E -63,70° · N 48,07°
Countries Canada
DatumNorth American Datum of 1983 (CSRS) version 2
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system EPSG:8237 — NAD83(CSRS)v2
Unit metre (N north, E east)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of natural origin46.5degree
Longitude of natural origin-66.5degree
Scale factor at natural origin0.999912unity
False easting2500000metre
False northing7500000metre

proj4 definition

+proj=sterea +lat_0=46.5 +lon_0=-66.5 +k=0.999912 +x_0=2500000 +y_0=7500000 +ellps=GRS80 +units=m +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:22240.

WKT (ESRI format, the .prj content)

PROJCS["NAD83(CSRS)v2_NB_Stereographic",GEOGCS["GCS_NAD83_CSRS_v2",DATUM["North_American_Datum_of_1983_(CSRS)_version_2",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Double_Stereographic"],PARAMETER["False_Easting",2500000.0],PARAMETER["False_Northing",7500000.0],PARAMETER["Central_Meridian",-66.5],PARAMETER["Scale_Factor",0.999912],PARAMETER["Latitude_Of_Origin",46.5],UNIT["Meter",1.0]]

All systems — Canada

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