Will Add Three, Possibly Four More Satellites
Lockheed Martin's Space-Based Infrared System (SBIRS) team has
submitted its proposal for the program's follow-on production phase
and has completed a major Preliminary Design Review (PDR) milestone
with the US Air Force. The SBIRS program is designed to provide
early warning of missile launches, and simultaneously support other
missions including missile defense, technical intelligence and
battlespace awareness.