The next morning in Hagushi anchorage , '' PC-598 '' received lube oil , fuel and fresh water from the tanker '' Armadillo '' and collected guard mail from '' PCS-1390 '' . By 1030 on 24 June 1945 the ship was en route from Okinawa to Pearl Harbor via Eniwetok Atoll in the Marshall Islands . The convoy took 11 days to travel the 2,145 nautical miles between Okinawa and Eniwetok Atoll , arriving on 5 July . After the war , this remote atoll was used for nuclear testing as part of the Pacific Proving Grounds . Forty-three nuclear tests were fired at Eniwetok from 1948 to 1958 , including Ivy Mike , the first full scale test of a thermonuclear device
Ivy Mike
Ivy Mike
USS PC-598