Definition: OGC Well Known Text 2 (2019)
DATUM["Hungarian Datum 1972", ELLIPSOID["GRS 1967",6378160,298.247167427, LENGTHUNIT["metre",1]], ID["EPSG",6237]]
Definition: ESRI Well Known Text
DATUM["D_Hungarian_1972", SPHEROID["GRS_1967",6378160.0,298.247167427]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Hungarian Datum 1972", "ellipsoid": { "name": "GRS 1967", "semi_major_axis": 6378160, "inverse_flattening": 298.247167427 }, "scope": "Topographic mapping.", "area": "Hungary.", "bbox": { "south_latitude": 45.74, "west_longitude": 16.11, "north_latitude": 48.58, "east_longitude": 22.9 }, "id": { "authority": "EPSG", "code": 6237 } }