{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"BoundCRS","source_crs":{"type":"ProjectedCRS","name":"ATS77 / UTM zone 19N","base_crs":{"type":"GeographicCRS","name":"ATS77","datum":{"type":"GeodeticReferenceFrame","name":"Average Terrestrial System 1977","ellipsoid":{"name":"Average Terrestrial System 1977","semi_major_axis":6378135,"inverse_flattening":298.257}},"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":4122},"remarks":"In use from 1979. To be phased out in late 1990's."},"conversion":{"name":"UTM zone 19N","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":-69,"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"}]},"id":{"authority":"EPSG","code":2219}},"target_crs":{"type":"GeographicCRS","name":"NAD83","datum":{"type":"GeodeticReferenceFrame","name":"North American Datum 1983","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":4269},"remarks":"Longitude is POSITIVE EAST. The adjustment included connections to Greenland and Mexico but the system was not adopted there. For applications with an accuracy of better than 1m replaced by NAD83(HARN) in the US and PRVI and by NAD83(CSRS) in Canada."},"transformation":{"name":"ATS77 to NAD83 (1)","method":{"name":"NTv2","id":{"authority":"EPSG","code":9615}},"parameters":[{"name":"Latitude and longitude difference file","value":"GS7783.GSB","id":{"authority":"EPSG","code":8656}}],"id":{"authority":"EPSG","code":9105}}}