EPSG:24571 - Hooray!

Attributes

Unit

British chain (Benoit 1895 B)

Scope

Engineering survey, topographic mapping.

Remarks

None

Area of use

Malaysia - West Malaysia onshore.

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

Datum: Kertau 1968

Coordinate System: cartesian

Projection: Rectified Skew Orthomorphic Malaya Grid

Geodetic CRS: Kertau 1968

Export

PROJCRS["Kertau / R.S.O. Malaya (ch)",
    BASEGEOGCRS["Kertau 1968",
        DATUM["Kertau 1968",
            ELLIPSOID["Everest 1830 Modified",6377304.063,300.8017,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4245]],
    CONVERSION["Rectified Skew Orthomorphic Malaya Grid",
        METHOD["Hotine Oblique Mercator (variant A)",
            ID["EPSG",9812]],
        PARAMETER["Latitude of projection centre",4,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8811]],
        PARAMETER["Longitude of projection centre",102.25,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8812]],
        PARAMETER["Azimuth at projection centre",323.0257905,
            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",0.99984,
            SCALEUNIT["unity",1],
            ID["EPSG",8815]],
        PARAMETER["False easting",40000,
            LENGTHUNIT["British chain (Benoit 1895 B)",20.1167824943759],
            ID["EPSG",8806]],
        PARAMETER["False northing",0,
            LENGTHUNIT["British chain (Benoit 1895 B)",20.1167824943759],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["(E)",east,
            ORDER[1],
            LENGTHUNIT["British chain (Benoit 1895 B)",20.1167824943759]],
        AXIS["(N)",north,
            ORDER[2],
            LENGTHUNIT["British chain (Benoit 1895 B)",20.1167824943759]],
    USAGE[
        SCOPE["Engineering survey, topographic mapping."],
        AREA["Malaysia - West Malaysia onshore."],
        BBOX[1.21,99.59,6.72,104.6]],
    ID["EPSG",24571]]

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "Kertau / R.S.O. Malaya (ch)",
  "base_crs": {
    "name": "Kertau 1968",
    "datum": {
      "type": "GeodeticReferenceFrame",
      "name": "Kertau 1968",
      "ellipsoid": {
        "name": "Everest 1830 Modified",
        "semi_major_axis": 6377304.063,
        "inverse_flattening": 300.8017
      }
    },
    "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": 4245
    }
  },
  "conversion": {
    "name": "Rectified Skew Orthomorphic Malaya Grid",
    "method": {
      "name": "Hotine Oblique Mercator (variant A)",
      "id": {
        "authority": "EPSG",
        "code": 9812
      }
    },
    "parameters": [
      {
        "name": "Latitude of projection centre",
        "value": 4,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8811
        }
      },
      {
        "name": "Longitude of projection centre",
        "value": 102.25,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8812
        }
      },
      {
        "name": "Azimuth at projection centre",
        "value": 323.0257905,
        "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": 0.99984,
        "unit": "unity",
        "id": {
          "authority": "EPSG",
          "code": 8815
        }
      },
      {
        "name": "False easting",
        "value": 40000,
        "unit": {
          "type": "LinearUnit",
          "name": "British chain (Benoit 1895 B)",
          "conversion_factor": 20.1167824943759
        },
        "id": {
          "authority": "EPSG",
          "code": 8806
        }
      },
      {
        "name": "False northing",
        "value": 0,
        "unit": {
          "type": "LinearUnit",
          "name": "British chain (Benoit 1895 B)",
          "conversion_factor": 20.1167824943759
        },
        "id": {
          "authority": "EPSG",
          "code": 8807
        }
      }
    ]
  },
  "coordinate_system": {
    "subtype": "Cartesian",
    "axis": [
      {
        "name": "Easting",
        "abbreviation": "E",
        "direction": "east",
        "unit": {
          "type": "LinearUnit",
          "name": "British chain (Benoit 1895 B)",
          "conversion_factor": 20.1167824943759
        }
      },
      {
        "name": "Northing",
        "abbreviation": "N",
        "direction": "north",
        "unit": {
          "type": "LinearUnit",
          "name": "British chain (Benoit 1895 B)",
          "conversion_factor": 20.1167824943759
        }
      }
    ]
  },
  "scope": "Engineering survey, topographic mapping.",
  "area": "Malaysia - West Malaysia onshore.",
  "bbox": {
    "south_latitude": 1.21,
    "west_longitude": 99.59,
    "north_latitude": 6.72,
    "east_longitude": 104.6
  },
  "id": {
    "authority": "EPSG",
    "code": 24571
  }
}