Formerly operated by the U.S. Navy for NORAD from 1961 until October 2004 .
Command passed to the Air Force 20th Space Control Squadron on October 1 , 2004 .
Although formerly operated by the U.S. Navy for NORAD from 1961 until October 2004 , command passed to the Air Force 20th Space Control Squadron on October 1 , 2004 .