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
Afonso de Albuquerque Manuel a show of Malaccan treasures. There were also the offers from the Kingdom of Siam (Thailand) to the King of Portugal and all his own fortune. On the voyage the "Flor de la Mar" was wrecked in a storm, and Afonso barely escaped drowning. Most Muslim and Gujarati merchants having fled the city, Afonso invested in diplomatic efforts demonstrating generosity to Southeast Asian merchants, like the Chinese, to encourage good relations with the Portuguese. Trade and diplomatic missions were sent to continental kingdoms: Rui Nunes da Cunha was sent to Pegu (Burma), from where King Binyaram sent back a