STSS Demonstrators Program is a midcourse tracking technology demonstrator and is part of an evolving ballistic missile defense system. Owned by the U.S. Missile Defense Agency, the payload's two satellites were successfully launched from Cape Canaveral Air Force Station aboard a Delta II rocket Sept. 25, 2009 at 8:20 a.m.
NOTE: All times are posted in Eastern. Timestamps may appear in your local time.
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