EPSG:6636 NAD83(PA11) / UTM zone 2S
Projected system (Transverse Mercator) in use: American Samoa - 2 main island groups and Rose Island. 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.
| Code | EPSG:6636 |
|---|---|
| Name | NAD83(PA11) / UTM zone 2S |
| Type | Projected system — Transverse Mercator |
| Area of use |
American Samoa - 2 main island groups and Rose Island American Samoa - Tutuila, Aunu'u, Ofu, Olesega, Ta'u and Rose islands. |
| Bounds | W -170,88° · S -14,59° · E -168,09° · N -14,11° |
| Countries | American Samoa |
| Datum | NAD83 (National Spatial Reference System PA11) |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:6322 — NAD83(PA11) |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -171 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 10000000 | metre |
proj4 definition
+proj=utm +zone=2 +south +ellps=GRS80 +units=m +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:6636.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_PA11_UTM_Zone_2S",GEOGCS["GCS_NAD_1983_PA11",DATUM["D_NAD_1983_PA11",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",-171.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — American Samoa
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.