EPSG systems

EPSG:4135 Old Hawaiian

Geographic system in latitude and longitude, in use: USA - Hawaii - onshore. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4135
NameOld Hawaiian
TypeGeographic system
Area of use USA - Hawaii - onshore
United States (USA) - Hawaii - main islands onshore.
Bounds W -160,30° · S 18,87° · E -154,74° · N 22,29°
Countries United States
DatumOld Hawaiian
Ellipsoid Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Old Hawaiian to WGS 84 (3) (EPSG:15824) — accuracy 38 m
ScopeGeodesy.

proj4 definition

+proj=longlat +ellps=clrk66 +towgs84=61,-285,-181 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:4135.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Old_Hawaiian",DATUM["D_Old_Hawaiian",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — United States

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.