{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"ProjectedCRS","name":"SMITB20 Grid","base_crs":{"type":"GeographicCRS","name":"SMITB20-IRF","datum":{"type":"GeodeticReferenceFrame","name":"SMITB20 Intermediate Reference Frame","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"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":10272},"remarks":"Intermediate CRS created in 2022 to assist the emulation of the ETRS89 / SMITB20 SnakeGrid projected CRS through transformation ETRS89 to SMITB20-IRF (1) (code 10273) used in conjunction with the SMITB20-TM map projection (code 10274)."},"conversion":{"name":"SMITB20-TM","method":{"name":"Transverse Mercator","id":{"authority":"EPSG","code":9807}},"parameters":[{"name":"Latitude of natural origin","value":50.75,"unit":"degree","id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":-3.85,"unit":"degree","id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":1,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":110693.666,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":102089.2943,"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 and topographic mapping for railway applications.","area":"United Kingdom (UK) - on or related to the rail route from Okehampton to Penstone.","bbox":{"south_latitude":50.65,"west_longitude":-4.11,"north_latitude":50.86,"east_longitude":-3.6},"id":{"authority":"EPSG","code":10275}}