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A pair of low Earth-orbiting demonstration satellites built by Northrop Grumman Aerospace Systems for the first time on March 16 detected and tracked a ballistic missile launch through all phases of flight, a Northrop Grumman official said March 22. So-called birth-to-death tracking of a ballistic missile launch had never been done before from space -- and is the most significant achievement to date for the Space Tracking and Surveillance System (STSS) spacecraft, said Doug Young, Northrop Grumman’s vice president of missile defense and warning programs. “It’s the Holy Grail for missile defense,” Young said during a media briefing here. [Top...

Demonstration satellites built by Northrop Grumman and Raytheon successfully tracked a ground-based missile launch in a systems test last month. Tracking data generated by satellite sensors was transmitted to the Missile Defense Integration and Operation Center in Colorado Springs, Colo., which serves as the ground station for the two demonstration spacecraft, Northrop Grumman said in a news release "The STSS satellites operated as expected and the system generated high-quality track data during the boost phase in this first missile test of capabilities," said Gabe Watson, vice president, missile defense and missile warning programs for Northrop Grumman Aerospace Systems.

The Obama administration’s proposed 2011 spending plan includes some changes to major missile defense and space programs that emphasize a focus on space situational awareness and ballistic missile tracking capabilities. The proposal also underpins the aging nuclear weapons infrastructure, while adhering to the aim of eventually scrapping nuclear forces altogether and securing so-called nuclear loose material worldwide. Few new expensive programs are being started in Fiscal 2011, and the most dramatic shift in the funding request is the termination of the joint Defense-Commerce Dept. National Polar-Orbiting Operational Environmental Satellite System (see p. 14). By contrast, the Air Force is setting...

Raytheon Space and Airborne Systems was awarded a $46 million contract modification from the U.S. Air Force Research Laboratory to continue development of an infrared sensor intended for a missile warning system that may succeed the over-budget and behind-schedule Space Based Infrared System (SBIRS) now in development. The Air Force several years ago began planning for a so-called third-generation missile warning system even as it continued to fall behind on the development of SBIRS, a program dogged by technical troubles. Lockheed Martin Space Systems of Sunnyvale, Calif., is the prime contractor for the SBIRS program, which consists of dedicated missile...

A critical space-based capability was added to America's ballistic missile defenses Sept. 25 when two U.S. Missile Defense Agency (MDA) Space Tracking and Surveillance System (STSS) Demonstrator satellites built by Northrop Grumman were launched aboard a Delta II rocket. "This demonstration will show the inherent advantages space sensors bring to persistent missile tracking and engagement," said Gabe Watson, vice president and STSS program manager for Northrop Grumman's Aerospace Systems sector. "Space-based sensors will augment existing radar to enable missile tracking through all phases of flight from boost through intercept." The United Launch Alliance Delta II rocket, with the tandem-stacked STSS...