EPSG:4157 Mount Dillon
Geographic system in latitude and longitude, in use: Trinidad and Tobago - Tobago - onshore. Datum, ellipsoid and transformation to WGS 84 below.
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:4157 |
|---|---|
| Name | Mount Dillon |
| Type | Geographic system |
| Area of use | Trinidad and Tobago - Tobago - onshore |
| Bounds | W -60,90° · S 11,08° · E -60,44° · N 11,41° |
| Countries | Trinidad & Tobago |
| Datum | Mount Dillon |
| Ellipsoid | Clarke 1858 a = 6378293.645208759 m · 1/f = 294.260676369 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +a=6378293.64520876 +b=6356617.98767984 +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:4157.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Mount_Dillon",DATUM["D_Mount_Dillon",SPHEROID["Clarke_1858",6378293.64520876,294.260676369261]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — Trinidad & Tobago
- EPSG:2066Mount Dillon / Tobago Grid
- EPSG:2067Naparima 1955 / UTM zone 20N
- EPSG:2314Trinidad 1903 / Trinidad Grid (ftCla)
- EPSG:4158Naparima 1955
- EPSG:4271Naparima 1972
- EPSG:4302Trinidad 1903
- EPSG:8035WGS 84 / TM Zone 20N (ftUS)
- EPSG:8036WGS 84 / TM Zone 21N (ftUS)
- EPSG:27120Naparima 1972 / UTM zone 20N
- EPSG:30200Trinidad 1903 / Trinidad Grid
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.