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    EPSG reference

    EPSG:4262 — Massawa

    Massawa (EPSG:4262) — a Geographic (degrees) system on the bessel datum, used in Sudan. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter to WGS84 and UTM.

    At a glance

    EPSG
    4262
    Name
    Massawa
    Kind
    Geographic (degrees)
    Family
    Geographic (longitude/latitude)
    Ellipsoid
    bessel
    Accuracy
    ±0.1 m (vs PROJ)
    Countries
    Sudan
    Convert from this system now

    Area of use

    West36.44°
    South12.36°
    East43.31°
    North18.10°

    Projection parameters

    Projectionlonglat
    Ellipsoidbessel
    Helmert shift to WGS84639,405,60,0,0,0,0
    proj4
    +proj=longlat +ellps=bessel +no_defs +towgs84=639,405,60,0,0,0,0
    WKT (ESRI)
    GEOGCS["GCS_Massawa",DATUM["D_Bessel_1841",SPHEROID["Bessel_1841",6377397.155,299.1528128],TOWGS84[639,405,60,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","4262"]]

    Sample conversion

    Centre of the area of use: WGS84 39.87500, 15.23000 → EPSG:4262 39.8759203, 15.2309538

    Values are within ±0.1 m at the test point.

    About the Geographic (longitude/latitude) family

    Massawa is a geographic coordinate system: positions are longitude and latitude in degrees on its reference ellipsoid, not metres on a plane. It is the datum layer that projected grids (UTM, national belts) are built upon.

    Because it is unprojected, distances and areas cannot be measured directly from its degrees — convert to a metric projected system (or use a geodesic calculation) first. This page's converter does exactly that.

    Useful links: Converter · Batch converter · File converter · Country page

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    FAQ

    It is the coordinate system “Massawa”, a Geographic (degrees) system in the Geographic (longitude/latitude) family, identified worldwide by the code EPSG:4262.

    You may also need: Arab-world coordinate converter · Surveying file format converter · Batch coordinate file converter