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Captain Arturo Prat Base is a small Chilean Antarctic research base on . It is located on Greenwich Island. Opened February 6, 1947, it is the oldest Chilean Antarctic station. Until March 1, 2006, it was a base of the Chilean Navy, on which date it was handed over to the regional government of Magallanes and Antártica Chilena Region. Until February, 2004, it had been a permanent base. Afterwards, it had served as a summer base of ionospheric and meteorologic research. There have been plans to reopen the station for permanent occupation starting March, 2008.