EPSG:3920 Puerto Rico / UTM zone 20N
Projected system (Transverse Mercator) in use: Virgin Islands, British - onshore. The full definition below, and conversion in one click.
| Code | EPSG:3920 |
|---|---|
| Name | Puerto Rico / UTM zone 20N |
| Type | Projected system — Transverse Mercator |
| Area of use |
Virgin Islands, British - onshore British Virgin Islands - onshore - Anegada, Jost Van Dyke, Tortola, and Virgin Gorda. |
| Bounds | W -64,88° · S 18,28° · E -64,25° · N 18,78° |
| Countries | British Virgin Islands |
| Datum | Puerto Rico |
| Ellipsoid | Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214 |
| Base geographic system | EPSG:4139 — Puerto Rico |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | Puerto Rico to WGS 84 (3) (EPSG:1893) — accuracy 6 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -63 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=20 +ellps=clrk66 +units=m +towgs84=11,72,-101 +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:3920.
WKT (ESRI format, the .prj content)
PROJCS["Puerto_Rico_UTM_Zone_20N",GEOGCS["GCS_Puerto_Rico",DATUM["D_Puerto_Rico",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-63.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — British Virgin Islands
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.