EPSG:4150 — CH1903+

Geographic 2D · Europe - Liechtenstein and Switzerland

Export Formats

OGC WKT

GEOGCS[
    "CH1903+",
    DATUM[
        "CH1903+",
        SPHEROID["Bessel 1841",6377397.155,299.1528128],
        TOWGS84[674.374,15.056,405.346,0,0,0,0]
    ],
    PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4150"]
]

WKT2

GEOGCRS[
    "CH1903+",
    DATUM[
        "CH1903+",
        ELLIPSOID[
            "Bessel 1841",
            6377397.155,
            299.1528128,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7004]
        ],
        ID["EPSG",6150]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4150]
]

PROJ.4

+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4150", "+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4150,
  "name": "CH1903+",
  "kind": "geographic 2D",
  "area": "Europe - Liechtenstein and Switzerland",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    45.81,
    5.95,
    47.81,
    10.5
  ],
  "proj4": "+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +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 (4150, 'EPSG', 4150, '+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +no_defs +type=crs', 'GEOGCS["CH1903+",DATUM["CH1903+",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[674.374,15.056,405.346,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4150"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+ellps=bessel"
  "+towgs84=674.374,15.056,405.346,0,0,0,0"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4150=GEOGCS["CH1903+",DATUM["CH1903+",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[674.374,15.056,405.346,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4150"]]

Related Coordinate Systems

Available Transformations (5)

Transformation	Source → Target	Accuracy (m)
CH1903+ to CHTRS95 (1)	4150 → 4151	0.1
CH1903+ to ETRS89-CHE [CHTRF95] (1)	4150 → 11307	0.1
CH1903 to CH1903+ (1)	4149 → 4150	0.2
CH1903+ to WGS 84 (1)	4150 → 4326	1
CH1903+ to WGS 84 (1) Deprecated	4150 → 4326	—

Other CRS using CH1903+

Frequently Asked Questions

How do I add EPSG:4150 to GeoServer?

Add the following definition to your GeoServer configuration:

4150=GEOGCS["CH1903+",DATUM["CH1903+",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[674.374,15.056,405.346,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4150"]]

Read the full GeoServer guide →

How do I add EPSG:4150 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4150, 'EPSG', 4150, '+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +no_defs +type=crs', 'GEOGCS["CH1903+",DATUM["CH1903+",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[674.374,15.056,405.346,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4150"]]');

Read the full PostGIS guide →

How do I add EPSG:4150 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+ellps=bessel"
  "+towgs84=674.374,15.056,405.346,0,0,0,0"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4150 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4150", "+proj=longlat +ellps=bessel +towgs84=674.374,15.056,405.346,0,0,0,0 +no_defs +type=crs");

Read the full Proj4js guide →