EPSG:3106

Gulshan 303 / TM 90 NE

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Available transformations
to EPSG:4326
No other targets exist for this CRS

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived at origin station in Dhaka.

Information source: Survey of Bangladesh.

Revision date: 2021-01-13

Attributes

Unit: metre

Geodetic CRS: Gulshan 303

Datum: Gulshan 303

Ellipsoid: Everest 1830 (1937 Adjustment)

Prime meridian: Greenwich

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.

Area of use: Bangladesh - onshore.

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

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SimpleMap

Center coordinates
535229.0 2498986.84

Projected bounds:
290260.09 2051855.66
782110.39 2949043.52

WGS84 bounds:
88.01 18.56
92.67 26.64

Bangladesh - onshore and offshore.
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Definition: OGC Well Known Text

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"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["Gulshan 303 / TM 90 NE",
    BASEGEOGCRS["Gulshan 303",
        DATUM["Gulshan 303",
            ELLIPSOID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        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",8801]],
        PARAMETER["Longitude of natural origin",90,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.9996,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",500000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",0,
            LENGTHUNIT["metre",1],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["(E)",east,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["(N)",north,
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Engineering survey, topographic mapping."],
        AREA["Bangladesh - onshore."],
        BBOX[20.52,88.01,26.64,92.67]],
    USAGE[
        SCOPE["Oil and gas exploration and production."],
        AREA["Bangladesh - onshore and offshore."],
        BBOX[18.56,88.01,26.64,92.67]],
    ID["EPSG",3106]]

Definition: ESRI Well Known Text

PROJCS["Gulshan_303_Bangladesh_TM",
    GEOGCS["GCS_Gulshan_303",
        DATUM["D_Gulshan_303",
            SPHEROID["Everest_Adjustment_1937",6377276.345,300.8017]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",500000.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",90.0],
    PARAMETER["Scale_Factor",0.9996],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]

Definition: 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

Definition: JavaScript (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");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "Gulshan 303 / TM 90 NE",
    "base_crs": {
        "name": "Gulshan 303",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Gulshan 303",
            "ellipsoid": {
                "name": "Everest 1830 (1937 Adjustment)",
                "semi_major_axis": 6377276.345,
                "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": 4682
        }
    },
    "conversion": {
        "name": "TM 90 NE",
        "method": {
            "name": "Transverse Mercator",
            "id": {
                "authority": "EPSG",
                "code": 9807
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 0,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": 90,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.9996,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 500000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 0,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8807
                }
            }
        ]
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Easting",
                "abbreviation": "E",
                "direction": "east",
                "unit": "metre"
            },
            {
                "name": "Northing",
                "abbreviation": "N",
                "direction": "north",
                "unit": "metre"
            }
        ]
    },
    "usages": [
        {
            "scope": "Engineering survey, topographic mapping.",
            "area": "Bangladesh - onshore.",
            "bbox": {
                "south_latitude": 20.52,
                "west_longitude": 88.01,
                "north_latitude": 26.64,
                "east_longitude": 92.67
            }
        },
        {
            "scope": "Oil and gas exploration and production.",
            "area": "Bangladesh - onshore and offshore.",
            "bbox": {
                "south_latitude": 18.56,
                "west_longitude": 88.01,
                "north_latitude": 26.64,
                "east_longitude": 92.67
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 3106
    }
}

Definition: 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"]]

Definition: MapServer - MAPfile

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

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+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">
	<Layer srs="+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">
	</Layer>
</Map>

Definition: SQL (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"]]');