Ellipsoid: WGS 84
Prime meridian: Greenwich
Data source: EPSG
Information source: "Recent Update to WGS 84 Reference Frame and NGA Transition to IGS ANTEX", NGA Office of Geomatics / GNSS Division press release #21-520.
Revision date: 2024-03-06
Scope: Geodesy. Navigation and positioning using GPS satellite system.
Remarks: Replaces World Geodetic System 1984 (G1762) from 2021-01-03. Tracking station coordinate changes on 2021-03-28 when NGA implemented IGS definition of antenna phase centre offset. Replaced by World Geodetic System 1984 (G2296) from 2024-01-07.
Area of use: World.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "DynamicGeodeticReferenceFrame", "name": "World Geodetic System 1984 (G2139)", "frame_reference_epoch": 2016, "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 }, "scope": "Geodesy. Navigation and positioning using GPS satellite system.", "area": "World.", "bbox": { "south_latitude": -90, "west_longitude": -180, "north_latitude": 90, "east_longitude": 180 }, "id": { "authority": "EPSG", "code": 1309 } }