 USAF 18th Surveillance Squadron operated the Baker-Nunn camera at a station built along the causeway on Sand Island until 1975 when a contract to operate the four remaining Air Force stations was awarded to Bendix Field Engineering Corporation.In about 1977, the camera at Sand Island was moved to Daegu, South Korea.Baker-Nunn were rendered obsolete with the IOC of 3 GEODSS optical tracking sites at Daegu, Korea; Mount Haleakala, Maui and White Sands Missile Range.