EPSG:23948

Indian 1954 / UTM zone 48N

Transform Get position on a map

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

  • Thailand - onshore. , accuracy 21.0 m, code 1153 (default) [3]

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived at 11 stations. Accuracy 15m, 6m and 12m in X, Y and Z axes.

Information source: U.S. Defense Mapping Agency TR8350.2 revision of August 1993.

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: Indian 1954

Datum: Indian 1954

Ellipsoid: Everest 1830 (1937 Adjustment)

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2011-01-25

Scope: Engineering survey, topographic mapping.

Area of use: Thailand - onshore east of 102°E.

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

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SimpleMap

Center coordinates
119650.38 1444427.12

Projected bounds:
-350353.0 621996.01
571297.57 2280847.11

WGS84 bounds:
97.34 5.63
105.64 20.46

Thailand - onshore.
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Definition: OGC Well Known Text

PROJCS["Indian 1954 / UTM zone 48N",
    GEOGCS["Indian 1954",
        DATUM["Indian_1954",
            SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],
            TOWGS84[217,823,299,0,0,0,0]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4239"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",105],
    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","23948"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["Indian 1954 / UTM zone 48N",
    BASEGEOGCRS["Indian 1954",
        DATUM["Indian 1954",
            ELLIPSOID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4239]],
    CONVERSION["UTM zone 48N",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",0,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",105,
            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["Thailand - onshore east of 102°E."],
        BBOX[6.02,102,18.44,105.64]],
    ID["EPSG",23948]]

Definition: ESRI Well Known Text

PROJCS["Indian_1954_UTM_Zone_48N",
    GEOGCS["GCS_Indian_1954",
        DATUM["D_Indian_1954",
            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",105.0],
    PARAMETER["Scale_Factor",0.9996],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=utm +zone=48 +ellps=evrst30 +towgs84=217,823,299,0,0,0,0 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:23948","+proj=utm +zone=48 +ellps=evrst30 +towgs84=217,823,299,0,0,0,0 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "Indian 1954 / UTM zone 48N",
    "base_crs": {
        "name": "Indian 1954",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Indian 1954",
            "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": 4239
        }
    },
    "conversion": {
        "name": "UTM zone 48N",
        "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": 105,
                "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"
            }
        ]
    },
    "scope": "Engineering survey, topographic mapping.",
    "area": "Thailand - onshore east of 102°E.",
    "bbox": {
        "south_latitude": 6.02,
        "west_longitude": 102,
        "north_latitude": 18.44,
        "east_longitude": 105.64
    },
    "id": {
        "authority": "EPSG",
        "code": 23948
    }
}

Definition: GeoServer

23948=PROJCS["Indian 1954 / UTM zone 48N",GEOGCS["Indian 1954",DATUM["Indian_1954",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[217,823,299,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4239"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",105],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","23948"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=utm"
	"zone=48"
	"ellps=evrst30"
	"towgs84=217,823,299,0,0,0,0"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=utm +zone=48 +ellps=evrst30 +towgs84=217,823,299,0,0,0,0 +units=m +no_defs +type=crs">
	<Layer srs="+proj=utm +zone=48 +ellps=evrst30 +towgs84=217,823,299,0,0,0,0 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 23948, 'EPSG', 23948, '+proj=utm +zone=48 +ellps=evrst30 +towgs84=217,823,299,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Indian 1954 / UTM zone 48N",GEOGCS["Indian 1954",DATUM["Indian_1954",SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017],TOWGS84[217,823,299,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4239"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",105],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","23948"]]');