Assertion: reference ellipsoid | /r/HasProperty | sa/a
Facets:
Source sentences:
text: $ a,b,Mr,Ar,Qr $ values for GPES, with the most up to date, GPS satellite created reference ellipsoid (1980–83), GRS-80/83, the South American/Australian (1966), SA/A, the Clarke (1866), Clarke, the Hayford/International (1924),