Unit: metre
Data source: EPSG
Information source: Rais paper.
Revision date: 1995-06-02
Remarks: Based on the GRS 1967 figure but with 1/f taken to 3 decimal places exactly.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Ellipsoid", "name": "Indonesian National Spheroid", "semi_major_axis": 6378160, "inverse_flattening": 298.247, "id": { "authority": "EPSG", "code": 7021 } }