Ellipsoid: Everest 1830 (RSO 1969)
Prime meridian: Greenwich
Data source: EPSG
Information source: Defence Geographic Centre.
Revision date: 2006-07-24
Scope: Metrication of RSO grid.
Remarks: Adopts metric conversion of 0.914398 metres per yard exactly. This is a truncation of the Sears 1922 ratio.
Area of use: Malaysia - West Malaysia; Singapore.
Definition: OGC Well Known Text
DATUM["Kertau_RSO", SPHEROID["Everest 1830 (RSO 1969)",6377295.664,300.8017, AUTHORITY["EPSG","7056"]], AUTHORITY["EPSG","6751"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Kertau (RSO)", ELLIPSOID["Everest 1830 (RSO 1969)",6377295.664,300.8017, LENGTHUNIT["metre",1]], ID["EPSG",6751]]
Definition: ESRI Well Known Text
DATUM["D_Kertau_RSO", SPHEROID["Everest_Modified_1969",6377295.664,300.8017]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Kertau (RSO)", "ellipsoid": { "name": "Everest 1830 (RSO 1969)", "semi_major_axis": 6377295.664, "inverse_flattening": 300.8017 }, "scope": "Metrication of RSO grid.", "area": "Malaysia - West Malaysia; Singapore.", "bbox": { "south_latitude": 1.13, "west_longitude": 99.59, "north_latitude": 6.72, "east_longitude": 104.6 }, "id": { "authority": "EPSG", "code": 6751 } }