EPSG:3748 NAD83(HARN) / UTM zone 18N
Projected system (Transverse Mercator) in use: USA - 78°W to 72°W onshore. The full definition below, and conversion in one click.
| Code | EPSG:3748 |
|---|---|
| Name | NAD83(HARN) / UTM zone 18N |
| Type | Projected system — Transverse Mercator |
| Area of use |
USA - 78°W to 72°W onshore United States (USA) - between 78°W and 72°W - onshore - Connecticut; Delaware; Maryland; Massachusetts; New Hampshire; New Jersey; New York; North Carolina; Pennsylvania; Virginia; Vermont. |
| Bounds | W -78,00° · S 33,84° · E -72,00° · N 45,03° |
| Countries | United States |
| Datum | NAD83 (High Accuracy Reference Network) |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:4152 — NAD83(HARN) |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | NAD83(HARN) to WGS 84 (3) (EPSG:1901) — accuracy 1 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -75 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=18 +ellps=GRS80 +units=m +towgs84=-0.991,1.9072,0.5129,0.02579,0.00965,0.01166,0 +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:3748.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_HARN_UTM_Zone_18N",GEOGCS["GCS_North_American_1983_HARN",DATUM["D_North_American_1983_HARN",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",0.0],PARAMETER["Central_Meridian",-75.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — United States
- EPSG:3738NAD83 / Wyoming West Central (ftUS)
- EPSG:3739NAD83 / Wyoming West (ftUS)
- EPSG:3740NAD83(HARN) / UTM zone 10N
- EPSG:3741NAD83(HARN) / UTM zone 11N
- EPSG:3742NAD83(HARN) / UTM zone 12N
- EPSG:3743NAD83(HARN) / UTM zone 13N
- EPSG:3744NAD83(HARN) / UTM zone 14N
- EPSG:3745NAD83(HARN) / UTM zone 15N
- EPSG:3746NAD83(HARN) / UTM zone 16N
- EPSG:3747NAD83(HARN) / UTM zone 17N
- EPSG:3749NAD83(HARN) / UTM zone 19N
- EPSG:3750NAD83(HARN) / UTM zone 4N
- EPSG:3751NAD83(HARN) / UTM zone 5N
- EPSG:3753NAD83(HARN) / Ohio North (ftUS)
- EPSG:3754NAD83(HARN) / Ohio South (ftUS)
- EPSG:3755NAD83(HARN) / Wyoming East (ftUS)
- EPSG:3756NAD83(HARN) / Wyoming East Central (ftUS)
- EPSG:3757NAD83(HARN) / Wyoming West Central (ftUS)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.