Ascension Island a staging point by the British military during the Falklands War. Ascension Island hosts one of four ground antennas (others are on Kwajalein Island, Diego Garcia, and Cape Canaveral) that assist in the operation of the Global Positioning System (GPS) navigational system. NASA operates a Meter Class Autonomous Telescope (MCAT) on Ascension Island for tracking orbital debris, which is potentially hazardous to operating spacecraft and astronauts, at a facility called the John Africano NASA/AFRL Orbital Debris Observatory. In 1501, the Portuguese navigator Afonso de Albuquerque sighted the island on Ascension Day (which fell on 21 May that year) and named
5th Portuguese India Armada (Albuquerque, 1503) remain based in Cochin city rather than move to Edapalli. Thus 1503 is commonly cited as the foundation year of the Kingdom of Cochin. In the meantime, Francisco de Albuquerque persuaded Trimumpara Raja to allow the Portuguese to erect and garrison a fortress in Cochin. The timber fortress was named Fort Sant'Iago by Afonso de Albuquerque, in honor of the knightly Order of Santiago to which he belonged (it was also the name of his ship). It was erected in a part of Cochinese peninsula, known to the Portuguese as "Santa Cruz" (or "Cochim-de-Baixo", 'Lower Cochin', now known as Fort