Definition:Hayford Spheroid

Definition
The Hayford spheroid is defined by:
 * its semi-major axis $a = 6 \, 378 \, 388 \cdotp 000 \, \mathrm m$
 * its flattening $f = 1:297 \cdotp 00$
 * its minor axis $b = 6 \, 356 \, 912 \cdotp 000 \, \mathrm m$