EPSG:7882 — St. Helena Tritan / SHLG(Tritan)

Projected · St Helena - St Helena Island

Export Formats

OGC WKT

PROJCS[
    "St. Helena Tritan / SHLG(Tritan)",
    GEOGCS[
        "St. Helena Tritan",
        DATUM[
            "St_Helena_Tritan",
            SPHEROID["WGS 84",6378137,298.257223563],
            TOWGS84[-0.077,0.079,0.086,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","7881"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",-15.9666666666667],
    PARAMETER["central_meridian",-5.71666666666667],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",299483.737],
    PARAMETER["false_northing",2000527.879],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","7882"]
]

WKT2

PROJCRS[
    "St. Helena Tritan / SHLG(Tritan)",
    BASEGEOGCRS[
        "St. Helena Tritan",
        DATUM[
            "St. Helena Tritan",
            ELLIPSOID[
                "WGS 84",
                6378137,
                298.257223563,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7030]
            ],
            ID["EPSG",1173]
        ],
        ID["EPSG",7881]
    ],
    CONVERSION[
        "St. Helena Local Grid (Tritan)",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            -15.9666666666669,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            -5.71666666666694,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            1,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            299483.737,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            2000527.879,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",7876]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",7882]
]

PROJ.4

+proj=tmerc +lat_0=-15.9666666666667 +lon_0=-5.71666666666667 +k=1 +x_0=299483.737 +y_0=2000527.879 +ellps=WGS84 +towgs84=-0.077,0.079,0.086,0,0,0,0 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:7882", "+proj=tmerc +lat_0=-15.9666666666667 +lon_0=-5.71666666666667 +k=1 +x_0=299483.737 +y_0=2000527.879 +ellps=WGS84 +towgs84=-0.077,0.079,0.086,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 7882,
  "name": "St. Helena Tritan / SHLG(Tritan)",
  "kind": "projected",
  "area": "St Helena - St Helena Island",
  "unit": "metre",
  "bbox": [
    -16.08,
    -5.85,
    -15.85,
    -5.59
  ],
  "proj4": "+proj=tmerc +lat_0=-15.9666666666667 +lon_0=-5.71666666666667 +k=1 +x_0=299483.737 +y_0=2000527.879 +ellps=WGS84 +towgs84=-0.077,0.079,0.086,0,0,0,0 +units=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (7882, 'EPSG', 7882, '+proj=tmerc +lat_0=-15.9666666666667 +lon_0=-5.71666666666667 +k=1 +x_0=299483.737 +y_0=2000527.879 +ellps=WGS84 +towgs84=-0.077,0.079,0.086,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["St. Helena Tritan / SHLG(Tritan)",GEOGCS["St. Helena Tritan",DATUM["St_Helena_Tritan",SPHEROID["WGS 84",6378137,298.257223563],TOWGS84[-0.077,0.079,0.086,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7881"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-15.9666666666667],PARAMETER["central_meridian",-5.71666666666667],PARAMETER["scale_factor",1],PARAMETER["false_easting",299483.737],PARAMETER["false_northing",2000527.879],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","7882"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=-15.9666666666667"
  "+lon_0=-5.71666666666667"
  "+k=1"
  "+x_0=299483.737"
  "+y_0=2000527.879"
  "+ellps=WGS84"
  "+towgs84=-0.077,0.079,0.086,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

7882=PROJCS["St. Helena Tritan / SHLG(Tritan)",GEOGCS["St. Helena Tritan",DATUM["St_Helena_Tritan",SPHEROID["WGS 84",6378137,298.257223563],TOWGS84[-0.077,0.079,0.086,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7881"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-15.9666666666667],PARAMETER["central_meridian",-5.71666666666667],PARAMETER["scale_factor",1],PARAMETER["false_easting",299483.737],PARAMETER["false_northing",2000527.879],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","7882"]]

Related Coordinate Systems

Available Transformations (2)

Transformations inherited from base CRS: EPSG:7881 (St. Helena Tritan)

Transformation	Source → Target	Accuracy (m)
St. Helena Tritan to SHGD2015 (1)	7881 → 7886	0.05
St. Helena Tritan to WGS 84 (1)	7881 → 4326	1

Other CRS using St. Helena Tritan

Frequently Asked Questions

How do I add EPSG:7882 to GeoServer?

Add the following definition to your GeoServer configuration:

7882=PROJCS["St. Helena Tritan / SHLG(Tritan)",GEOGCS["St. Helena Tritan",DATUM["St_Helena_Tritan",SPHEROID["WGS 84",6378137,298.257223563],TOWGS84[-0.077,0.079,0.086,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7881"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-15.9666666666667],PARAMETER["central_meridian",-5.71666666666667],PARAMETER["scale_factor",1],PARAMETER["false_easting",299483.737],PARAMETER["false_northing",2000527.879],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","7882"]]

Read the full GeoServer guide →

How do I add EPSG:7882 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (7882, 'EPSG', 7882, '+proj=tmerc +lat_0=-15.9666666666667 +lon_0=-5.71666666666667 +k=1 +x_0=299483.737 +y_0=2000527.879 +ellps=WGS84 +towgs84=-0.077,0.079,0.086,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["St. Helena Tritan / SHLG(Tritan)",GEOGCS["St. Helena Tritan",DATUM["St_Helena_Tritan",SPHEROID["WGS 84",6378137,298.257223563],TOWGS84[-0.077,0.079,0.086,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7881"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",-15.9666666666667],PARAMETER["central_meridian",-5.71666666666667],PARAMETER["scale_factor",1],PARAMETER["false_easting",299483.737],PARAMETER["false_northing",2000527.879],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","7882"]]');

Read the full PostGIS guide →

How do I add EPSG:7882 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=-15.9666666666667"
  "+lon_0=-5.71666666666667"
  "+k=1"
  "+x_0=299483.737"
  "+y_0=2000527.879"
  "+ellps=WGS84"
  "+towgs84=-0.077,0.079,0.086,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:7882 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:7882", "+proj=tmerc +lat_0=-15.9666666666667 +lon_0=-5.71666666666667 +k=1 +x_0=299483.737 +y_0=2000527.879 +ellps=WGS84 +towgs84=-0.077,0.079,0.086,0,0,0,0 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

St. Helena Tritan

Datum

St. Helena Tritan

Ellipsoid

WGS 84

Prime Meridian

Greenwich

Area of Use

St Helena - St Helena Island

St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.

Coordinate System

Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

Center Coordinates

299126.82 2000712.25

Projected Bounds

2013433.79 285218.10313051.43 1987981.88

WGS84 Bounds

-15.85 -5.85-5.59 -16.08

Data Source

EPSG

Information Source

St. Helena Government, Environment and Natural Resources Directorate (ENRD).

Revision Date

2016-11-20

Scope

Engineering survey including Airport and Ruperts Wharf construction.

Remarks

Replaced by SHMG2015 (CRS code 7887) from 2015.

EPSG

7882