EPSG:5519 CI1979 / Chatham Islands Map Grid
Projected system (Transverse Mercator) in use: New Zealand - Chatham Islands group. The full definition below, and conversion in one click.
| Code | EPSG:5519 |
|---|---|
| Name | CI1979 / Chatham Islands Map Grid |
| Type | Projected system — Transverse Mercator |
| Area of use |
New Zealand - Chatham Islands group New Zealand - Chatham Islands group - onshore. |
| Bounds | W -177,25° · S -44,64° · E -175,54° · N -43,30° |
| Countries | New Zealand |
| Datum | Chatham Islands Datum 1979 |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Base geographic system | EPSG:4673 — Chatham Islands 1979 |
| Unit | metre (N north, E east) |
| Transformation to WGS 84 | CI1979 to WGS 84 (1) (EPSG:1081) — accuracy 2 m |
| Scope | Cadastre, engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | -44 | degree |
| Longitude of natural origin | -176.5 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 350000 | metre |
| False northing | 650000 | metre |
proj4 definition
+proj=tmerc +lat_0=-44 +lon_0=-176.5 +k=1 +x_0=350000 +y_0=650000 +ellps=intl +units=m +towgs84=174.05,-25.49,112.57,0,0,0.554,0.2263 +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:5519.
WKT (ESRI format, the .prj content)
PROJCS["Chatham_Islands_1979_Map_Grid",GEOGCS["GCS_Chatham_Islands_1979",DATUM["D_Chatham_Islands_1979",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",350000.0],PARAMETER["False_Northing",650000.0],PARAMETER["Central_Meridian",-176.5],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",-44.0],UNIT["Meter",1.0]]Other systems — New Zealand
- EPSG:2133NZGD2000 / UTM zone 58S
- EPSG:2134NZGD2000 / UTM zone 59S
- EPSG:2135NZGD2000 / UTM zone 60S
- EPSG:2193NZGD2000 / New Zealand Transverse Mercator 2000
- EPSG:3764NZGD2000 / Chatham Island Circuit 2000
- EPSG:3788NZGD2000 / Auckland Islands TM 2000
- EPSG:3789NZGD2000 / Campbell Island TM 2000
- EPSG:3790NZGD2000 / Antipodes Islands TM 2000
- EPSG:3791NZGD2000 / Raoul Island TM 2000
- EPSG:3793NZGD2000 / Chatham Islands TM 2000
- EPSG:3851NZGD2000 / NZCS2000
- EPSG:3994WGS 84 / Mercator 41
- EPSG:4167NZGD2000
- EPSG:4272NZGD49
- EPSG:4672Chatham Islands 1971
- EPSG:4673Chatham Islands 1979
- EPSG:5518CI1971 / Chatham Islands Map Grid
- EPSG:5700NZGD2000 / UTM zone 1S
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.