EPSG:3106 — Gulshan 303 / TM 90 NE

Projected · Bangladesh - onshore

Export Formats

OGC WKT

PROJCS[
    "Gulshan 303 / TM 90 NE",
    GEOGCS[
        "Gulshan 303",
        DATUM[
            "Gulshan_303",
            SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],
            TOWGS84[283.729,735.942,261.143,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4682"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",90],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","3106"]
]

WKT2

PROJCRS[
    "Gulshan 303 / TM 90 NE",
    BASEGEOGCRS[
        "Gulshan 303",
        DATUM[
            "Gulshan 303",
            ELLIPSOID[
                "Everest 1830 (1937 Adjustment)",
                6377276.345,
                300.8017,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7015]
            ],
            ID["EPSG",6682]
        ],
        ID["EPSG",4682]
    ],
    CONVERSION[
        "TM 90 NE",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            0,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            90,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            0.9996,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            500000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",16490]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",3106]
]

PROJ.4

+proj=tmerc +lat_0=0 +lon_0=90 +k=0.9996 +x_0=500000 +y_0=0 +ellps=evrst30 +towgs84=283.729,735.942,261.143,0,0,0,0 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:3106", "+proj=tmerc +lat_0=0 +lon_0=90 +k=0.9996 +x_0=500000 +y_0=0 +ellps=evrst30 +towgs84=283.729,735.942,261.143,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 3106,
  "name": "Gulshan 303 / TM 90 NE",
  "kind": "projected",
  "area": "Bangladesh - onshore",
  "unit": "metre",
  "bbox": [
    20.52,
    88.01,
    26.64,
    92.67
  ],
  "proj4": "+proj=tmerc +lat_0=0 +lon_0=90 +k=0.9996 +x_0=500000 +y_0=0 +ellps=evrst30 +towgs84=283.729,735.942,261.143,0,0,0,0 +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 (3106, 'EPSG', 3106, '+proj=tmerc +lat_0=0 +lon_0=90 +k=0.9996 +x_0=500000 +y_0=0 +ellps=evrst30 +towgs84=283.729,735.942,261.143,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Gulshan 303 / TM 90 NE",GEOGCS["Gulshan 303",DATUM["Gulshan_303",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[283.729,735.942,261.143,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4682"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",90],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3106"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=90"
  "+k=0.9996"
  "+x_0=500000"
  "+y_0=0"
  "+ellps=evrst30"
  "+towgs84=283.729,735.942,261.143,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

3106=PROJCS["Gulshan 303 / TM 90 NE",GEOGCS["Gulshan 303",DATUM["Gulshan_303",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[283.729,735.942,261.143,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4682"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",90],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3106"]]

Related Coordinate Systems

Available Transformations (3)

Transformations inherited from base CRS: EPSG:4682 (Gulshan 303)

Transformation	Source → Target	Accuracy (m)
Gulshan 303 to WGS 84 (2)	4682 → 4326	1
Gulshan 303 to WGS 84 (1)	4682 → 4326	1
Gulshan 303 to WGS 84 (1) Deprecated	4682 → 4326	1

Other CRS using Gulshan 303

Frequently Asked Questions

How do I add EPSG:3106 to GeoServer?

Add the following definition to your GeoServer configuration:

3106=PROJCS["Gulshan 303 / TM 90 NE",GEOGCS["Gulshan 303",DATUM["Gulshan_303",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[283.729,735.942,261.143,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4682"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",90],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3106"]]

Read the full GeoServer guide →

How do I add EPSG:3106 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3106, 'EPSG', 3106, '+proj=tmerc +lat_0=0 +lon_0=90 +k=0.9996 +x_0=500000 +y_0=0 +ellps=evrst30 +towgs84=283.729,735.942,261.143,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Gulshan 303 / TM 90 NE",GEOGCS["Gulshan 303",DATUM["Gulshan_303",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[283.729,735.942,261.143,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4682"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",90],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3106"]]');

Read the full PostGIS guide →

How do I add EPSG:3106 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=90"
  "+k=0.9996"
  "+x_0=500000"
  "+y_0=0"
  "+ellps=evrst30"
  "+towgs84=283.729,735.942,261.143,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:3106 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:3106", "+proj=tmerc +lat_0=0 +lon_0=90 +k=0.9996 +x_0=500000 +y_0=0 +ellps=evrst30 +towgs84=283.729,735.942,261.143,0,0,0,0 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

Gulshan 303

Datum

Gulshan 303

Ellipsoid

Everest 1830 (1937 Adjustment)

Prime Meridian

Greenwich

Area of Use

Bangladesh - onshore

Bangladesh - onshore.

Coordinate System

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

Center Coordinates

534976.54 2607474.23

Projected Bounds

2949043.52 292781.48766082.40 2269997.67

WGS84 Bounds

26.64 88.0192.67 20.52

Data Source

EPSG

Information Source

Survey of Bangladesh via IGN Paris and Tullow Oil.

Revision Date

2022-11-29

Scope

Engineering survey, topographic mapping.

Remarks

Used by Survey of Bangladesh from 1995 to 2009, after which replaced by WGS 84 / TM 90 NE (CRS code 9680). See Gulshan 303 / BTM (code 9678) for other uses including water resource management.

EPSG

3106