As anxiety over the health of the Pentagon’s overhead nonimaging infrared (ONIR) constellation continues, yet another idea for an alternate system is emerging. U.S. Strategic Command is proposing a single satellite called the IR Augmentation System (IRAS), which would be a free flier. IRAS would be yet another potential backup in the event of further problems with the Space Based Infrared System High (SBIRS), the Lockheed Martin/Northrop Grumman program to deliver highly elliptical ...


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