metre
EPSG
Defence Geographic Centre
2006-07-24
Adopted for 1969 metrication of peninsula Malaysia RSO grid. Uses Sears 1922 yard-metre ratio truncated to 6 significant figures applied to Everest 1830 original definition of a and 1/f but with a taken to be in British rather than Indian feet.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Ellipsoid", "name": "Everest 1830 (RSO 1969)", "semi_major_axis": 6377295.664, "inverse_flattening": 300.8017, "id": { "authority": "EPSG", "code": 7056 } }