EPSG:26931 - Hooray!

Attributes

Unit

metre

Scope

Engineering survey, topographic mapping.

Remarks

None

Area of use

United States (USA) - Alaska - east of 141°W; i.e. Panhandle.

Data Source: EPSG v11.016 2024-08-31

Datum: North American Datum 1983

Coordinate System: cartesian

Projection: SPCS83 Alaska zone 1 (meter)

Geodetic CRS: NAD83

Export

PROJCRS["NAD83 / Alaska zone 1",
    BASEGEOGCRS["NAD83",
        DATUM["North American Datum 1983",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4269]],
    CONVERSION["SPCS83 Alaska zone 1 (meter)",
        METHOD["Hotine Oblique Mercator (variant A)",
            ID["EPSG",9812]],
        PARAMETER["Latitude of projection centre",57,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8811]],
        PARAMETER["Longitude of projection centre",-133.666666666667,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8812]],
        PARAMETER["Azimuth at projection centre",323.130102361111,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8813]],
        PARAMETER["Angle from Rectified to Skew Grid",323.130102361111,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8814]],
        PARAMETER["Scale factor at projection centre",0.9999,
            SCALEUNIT["unity",1],
            ID["EPSG",8815]],
        PARAMETER["False easting",5000000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",-5000000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["easting (X)",east,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["northing (Y)",north,
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Engineering survey, topographic mapping."],
        AREA["United States (USA) - Alaska - east of 141°W; i.e. Panhandle."],
        BBOX[54.61,-141,60.35,-129.99]],
    ID["EPSG",26931]]

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "NAD83 / Alaska zone 1",
  "base_crs": {
    "name": "NAD83",
    "datum": {
      "type": "GeodeticReferenceFrame",
      "name": "North American Datum 1983",
      "ellipsoid": {
        "name": "GRS 1980",
        "semi_major_axis": 6378137,
        "inverse_flattening": 298.257222101
      }
    },
    "coordinate_system": {
      "subtype": "ellipsoidal",
      "axis": [
        {
          "name": "Geodetic latitude",
          "abbreviation": "Lat",
          "direction": "north",
          "unit": "degree"
        },
        {
          "name": "Geodetic longitude",
          "abbreviation": "Lon",
          "direction": "east",
          "unit": "degree"
        }
      ]
    },
    "id": {
      "authority": "EPSG",
      "code": 4269
    }
  },
  "conversion": {
    "name": "SPCS83 Alaska zone 1 (meter)",
    "method": {
      "name": "Hotine Oblique Mercator (variant A)",
      "id": {
        "authority": "EPSG",
        "code": 9812
      }
    },
    "parameters": [
      {
        "name": "Latitude of projection centre",
        "value": 57,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8811
        }
      },
      {
        "name": "Longitude of projection centre",
        "value": -133.666666666667,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8812
        }
      },
      {
        "name": "Azimuth at projection centre",
        "value": 323.130102361111,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8813
        }
      },
      {
        "name": "Angle from Rectified to Skew Grid",
        "value": 323.130102361111,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8814
        }
      },
      {
        "name": "Scale factor at projection centre",
        "value": 0.9999,
        "unit": "unity",
        "id": {
          "authority": "EPSG",
          "code": 8815
        }
      },
      {
        "name": "False easting",
        "value": 5000000,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8806
        }
      },
      {
        "name": "False northing",
        "value": -5000000,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8807
        }
      }
    ]
  },
  "coordinate_system": {
    "subtype": "Cartesian",
    "axis": [
      {
        "name": "Easting",
        "abbreviation": "X",
        "direction": "east",
        "unit": "metre"
      },
      {
        "name": "Northing",
        "abbreviation": "Y",
        "direction": "north",
        "unit": "metre"
      }
    ]
  },
  "scope": "Engineering survey, topographic mapping.",
  "area": "United States (USA) - Alaska - east of 141°W; i.e. Panhandle.",
  "bbox": {
    "south_latitude": 54.61,
    "west_longitude": -141,
    "north_latitude": 60.35,
    "east_longitude": -129.99
  },
  "id": {
    "authority": "EPSG",
    "code": 26931
  }
}