Unit: metre
Data source: EPSG
Information source: Survey of India professional paper #28; 1939
Revision date: 1996-10-18
Remarks: Used for the 1937 readjustment of Indian triangulation. Clarke's 1865 Indian-British foot ratio (0.99999566) and Benoit's 1898 British inch-metre ratio (39.370113) rounded as 0.30479841 exactly and applied to Everest's 1830 definition taken as a and 1/f
Definition: OGC Well Known Text
SPHEROID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017, AUTHORITY["EPSG","7015"]]
Definition: OGC Well Known Text 2 (2019)
ELLIPSOID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017, LENGTHUNIT["metre",1], ID["EPSG",7015]]
Definition: ESRI Well Known Text
SPHEROID["Everest_Adjustment_1937",6377276.345,300.8017]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "Ellipsoid", "name": "Everest 1830 (1937 Adjustment)", "semi_major_axis": 6377276.345, "inverse_flattening": 300.8017, "id": { "authority": "EPSG", "code": 7015 } }