Ellipsoid: Bessel 1841
Prime meridian: Greenwich
Data source: EPSG
Information source: Topography Department; National Technical University of Athens
Revision date: 2011-07-20
Scope: Topographic mapping.
Remarks: See geodetic datum alias 6404. Used as basis of topographic mapping based on Hatt projection. Replaced by GGRS87 (code 6121).
Area of use: Greece - onshore.
Definition: OGC Well Known Text
DATUM["Greek", SPHEROID["Bessel 1841",6377397.155,299.1528128, AUTHORITY["EPSG","7004"]], AUTHORITY["EPSG","6120"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Greek", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]], ID["EPSG",6120]]
Definition: ESRI Well Known Text
DATUM["D_Greek", SPHEROID["Bessel_1841",6377397.155,299.1528128]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Greek", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 }, "scope": "Topographic mapping.", "area": "Greece - onshore.", "bbox": { "south_latitude": 34.88, "west_longitude": 19.57, "north_latitude": 41.75, "east_longitude": 28.3 }, "id": { "authority": "EPSG", "code": 6120 } }