{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"EOS21-IRF","datum":{"type":"GeodeticReferenceFrame","name":"EOS21 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"}]},"scope":"Engineering survey and topographic mapping for railway applications.","area":"United Kingdom (UK) - on or related to the complex of rail routes in the East of Scotland, incorporating the route from Tweedbank through the Borders to Edinburgh; the line from Edinburgh to Aberdeen; routes via Kirkaldy and Cowdenbeath; and routes via Leuchars and Perth to Dundee. ","bbox":{"south_latitude":55.55,"west_longitude":-3.56,"north_latitude":57.21,"east_longitude":-1.94},"id":{"authority":"EPSG","code":9739},"remarks":"Intermediate CRS created in 2021 to assist the emulation of the ETRS89 / EOS21 SnakeGrid projected CRS through transformation ETRS89 to EOS21-IRF (1) (code 9740) used in conjunction with the EOS21-TM map projection (code 9738)."}