EPSG:2823 NAD83(HARN) / New Hampshire
Projected system (Transverse Mercator) in use: USA - New Hampshire. The full definition below, and conversion in one click.
| Code | EPSG:2823 |
|---|---|
| Name | NAD83(HARN) / New Hampshire |
| Type | Projected system — Transverse Mercator |
| Area of use |
USA - New Hampshire United States (USA) - New Hampshire - counties of Belknap; Carroll; Cheshire; Coos; Grafton; Hillsborough; Merrimack; Rockingham; Strafford; Sullivan. |
| Bounds | W -72,56° · S 42,69° · E -70,63° · N 45,31° |
| 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 (X east, Y 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 | 42.5 | degree |
| Longitude of natural origin | -71.66666666666667 | degree |
| Scale factor at natural origin | 0.999966667 | unity |
| False easting | 300000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=tmerc +lat_0=42.5 +lon_0=-71.6666666666667 +k=0.999966667 +x_0=300000 +y_0=0 +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:2823.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_HARN_StatePlane_New_Hampshire_FIPS_2800",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",300000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-71.6666666666667],PARAMETER["Scale_Factor",0.999966667],PARAMETER["Latitude_Of_Origin",42.5],UNIT["Meter",1.0]]Other systems — United States
- EPSG:2814NAD83(HARN) / Mississippi West
- EPSG:2815NAD83(HARN) / Missouri East
- EPSG:2816NAD83(HARN) / Missouri Central
- EPSG:2817NAD83(HARN) / Missouri West
- EPSG:2818NAD83(HARN) / Montana
- EPSG:2819NAD83(HARN) / Nebraska
- EPSG:2820NAD83(HARN) / Nevada East
- EPSG:2821NAD83(HARN) / Nevada Central
- EPSG:2822NAD83(HARN) / Nevada West
- EPSG:2824NAD83(HARN) / New Jersey
- EPSG:2825NAD83(HARN) / New Mexico East
- EPSG:2826NAD83(HARN) / New Mexico Central
- EPSG:2827NAD83(HARN) / New Mexico West
- EPSG:2828NAD83(HARN) / New York East
- EPSG:2829NAD83(HARN) / New York Central
- EPSG:2830NAD83(HARN) / New York West
- EPSG:2831NAD83(HARN) / New York Long Island
- EPSG:2832NAD83(HARN) / North Dakota North
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.