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    EPSG reference

    EPSG:2087 — ELD79 / TM 12 NE

    ELD79 / TM 12 NE (EPSG:2087) — a Projected (metres) system on the intl datum, used in Libya. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter to WGS84 and…

    At a glance

    EPSG
    2087
    Name
    ELD79 / TM 12 NE
    Kind
    Projected (metres)
    Family
    Transverse Mercator (belt)
    Ellipsoid
    intl
    Accuracy
    ±0.1 m (vs PROJ)
    Countries
    Libya
    Convert from this system now

    Area of use

    West9.31°
    South22.61°
    East15.00°
    North33.23°

    Projection parameters

    Projectiontmerc
    Latitude of origin0
    Central meridian12
    Scale factor0.9996
    False easting500000
    False northing0
    Ellipsoidintl
    Unitsm
    Helmert shift to WGS84-115.8543,-99.0583,-152.4616,0,0,0,0
    proj4
    +proj=tmerc +lat_0=0 +lon_0=12 +k=0.9996 +x_0=500000 +y_0=0 +ellps=intl +units=m +no_defs +towgs84=-115.8543,-99.0583,-152.4616,0,0,0,0
    WKT (ESRI)
    PROJCS["ELD79 / TM 12 NE",GEOGCS["GCS_ELD79 / TM 12 NE",DATUM["D_International_1924",SPHEROID["International_1924",6378388,297],TOWGS84[-115.8543,-99.0583,-152.4616,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000],PARAMETER["False_Northing",0],PARAMETER["Central_Meridian",12],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0],UNIT["Meter",1],AUTHORITY["EPSG","2087"]]

    Sample conversion

    Libya capital: WGS84 13.19130, 32.88720 → EPSG:2087 611504.278, 3639605.067

    Values are within ±0.1 m at the test point.

    About the Transverse Mercator (belt) family

    ELD79 / TM 12 NE is a Transverse Mercator belt — a national or cadastral grid in metres, conformal (angles are preserved), with its own central meridian and scale factor. Egypt's Red/Purple/Blue belts, the Levant grids, and many Gulf cadastral systems are of this kind.

    Two things decide whether your coordinates land correctly: the exact belt (central meridian) and the datum. Mixing a coordinate from one belt into another, or ignoring the datum shift to WGS 84, is the usual cause of a systematic offset in imported survey data.

    Related systems

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    FAQ

    It is the coordinate system “ELD79 / TM 12 NE”, a Projected (metres) system in the Transverse Mercator (belt) family, identified worldwide by the code EPSG:2087.

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