Caused by redetermination of longitude of Tokyo datum fundamental point in 1918.
OGP
2010-06-30
degree (supplier to define representation)
EPSG
Clifford J. Mugnier; in Photogrammetric Engineering & Remote Sensing November 1999. http://www.asprs.org
2010-07-07
Geodesy.
Extended from Japan to Korea in 1898. In Japan, replaced by Tokyo 1918 (CRS code 4301). In South Korea replaced by Tokyo 1918 only for geodetic applications; for all other purposes replaced by Korean 1985 (code 4162).
Japan - onshore; North Korea - onshore; South Korea - onshore.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree
138.44 32.95
122.83 20.37
154.05 45.54
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ GEOGCRS["Tokyo 1892", DATUM["Tokyo 1892", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], USAGE[ SCOPE["Geodesy."], AREA["Japan - onshore; North Korea - onshore; South Korea - onshore."], BBOX[20.37,122.83,45.54,154.05]], ID["EPSG",5132]]], TARGETCRS[ GEOGCRS["Tokyo", DATUM["Tokyo", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], USAGE[ SCOPE["Geodesy."], AREA["Japan - onshore; North Korea - onshore; South Korea - onshore."], BBOX[20.37,122.83,45.54,154.05]], ID["EPSG",4301]]], ABRIDGEDTRANSFORMATION["Tokyo 1892 to Tokyo (1)", METHOD["Longitude rotation", ID["EPSG",9601]], PARAMETER["Longitude offset",10.405, ID["EPSG",8602]], USAGE[ SCOPE["Geodesy."], AREA["Japan - onshore; North Korea - onshore; South Korea - onshore."], BBOX[20.37,122.83,45.54,154.05]], ID["EPSG",5133], REMARK["Caused by redetermination of longitude of Tokyo datum fundamental point in 1918."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "GeographicCRS", "name": "Tokyo 1892", "datum": { "type": "GeodeticReferenceFrame", "name": "Tokyo 1892", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 } }, "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": 5132 } }, "target_crs": { "type": "GeographicCRS", "name": "Tokyo", "datum": { "type": "GeodeticReferenceFrame", "name": "Tokyo", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 } }, "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": 4301 } }, "transformation": { "name": "Tokyo 1892 to Tokyo (1)", "method": { "name": "Longitude rotation", "id": { "authority": "EPSG", "code": 9601 } }, "parameters": [ { "name": "Longitude offset", "value": 10.405, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8602 } } ], "id": { "authority": "EPSG", "code": 5133 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +ellps=bessel +no_defs +type=crs"> <Layer srs="+proj=longlat +ellps=bessel +no_defs +type=crs"> </Layer> </Map>