https://jp.mathworks.com/help/map/ref/wgs84ellipsoid.html
wgs84Ellipsoid - Reference ellipsoid for World Geodetic System of 1984 - MATLAB
This MATLAB function creates a referenceEllipsoid object for the World Geodetic System of 1984 (WGS84) reference ellipsoid.
referenceellipsoidworldgeodeticsystem