STSS Demonstration Satellites Detect ICBM Test Launch, Track Minuteman III Missile Through Post-Boost Phase

The Space Tracking and Surveillance System (STSS) Demonstration program satellites, built by Northrop Grumman Corporation and Raytheon Company, detected the test launch of a Minuteman III Intercontinental Ballistic Missile (ICBM) Sept. 17 and tracked it through the boost and post-boost phases for the first time.

The single reentry test vehicle from the missile traveled approximately 5,300 miles to a pre-determined point about 200 miles southwest of Guam, according to the U.S. Air Force.

The missile defense satellites transmitted tracking data to the Missile Defense Integration and Operations Center at Schriever Air Force Base, Colo., where the information is being analyzed.

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