EPSG:27218 NZGD49 / Grey Circuit
Projected system (Transverse Mercator) in use: New Zealand - South Island - Grey mc. The full definition below, and conversion in one click.
| Code | EPSG:27218 |
|---|---|
| Name | NZGD49 / Grey Circuit |
| Type | Projected system — Transverse Mercator |
| Area of use |
New Zealand - South Island - Grey mc New Zealand - South Island - Grey meridional circuit area. |
| Bounds | W 171,15° · S -42,74° · E 172,75° · N -41,50° |
| Countries | New Zealand |
| Datum | New Zealand Geodetic Datum 1949 |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Base geographic system | EPSG:4272 — NZGD49 |
| Unit | metre (N north, E east) |
| Transformation to WGS 84 | NZGD49 to WGS 84 (2) (EPSG:1564) — accuracy 4 m |
| Scope | Cadastre. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | -42.33369427777778 | degree |
| Longitude of natural origin | 171.54977130555557 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 300000 | metre |
| False northing | 700000 | metre |
proj4 definition
+proj=tmerc +lat_0=-42.3336942777778 +lon_0=171.549771305556 +k=1 +x_0=300000 +y_0=700000 +ellps=intl +units=m +towgs84=59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:27218.
WKT (ESRI format, the .prj content)
PROJCS["NZGD_1949_Grey_Circuit",GEOGCS["GCS_New_Zealand_1949",DATUM["D_New_Zealand_1949",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",300000.0],PARAMETER["False_Northing",700000.0],PARAMETER["Central_Meridian",171.549771305556],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",-42.3336942777778],UNIT["Meter",1.0]]Other systems — New Zealand
- EPSG:27209NZGD49 / Taranaki Circuit
- EPSG:27210NZGD49 / Tuhirangi Circuit
- EPSG:27211NZGD49 / Wanganui Circuit
- EPSG:27212NZGD49 / Wairarapa Circuit
- EPSG:27213NZGD49 / Wellington Circuit
- EPSG:27214NZGD49 / Collingwood Circuit
- EPSG:27215NZGD49 / Nelson Circuit
- EPSG:27216NZGD49 / Karamea Circuit
- EPSG:27217NZGD49 / Buller Circuit
- EPSG:27219NZGD49 / Amuri Circuit
- EPSG:27220NZGD49 / Marlborough Circuit
- EPSG:27221NZGD49 / Hokitika Circuit
- EPSG:27222NZGD49 / Okarito Circuit
- EPSG:27223NZGD49 / Jacksons Bay Circuit
- EPSG:27224NZGD49 / Mount Pleasant Circuit
- EPSG:27225NZGD49 / Gawler Circuit
- EPSG:27226NZGD49 / Timaru Circuit
- EPSG:27227NZGD49 / Lindis Peak Circuit
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.