Intruder, also known as IOSA (Integrated Overhead SIGINT Architecture) is reported to be the codename for a spy satellite system to be operated by the United States National Reconnaissance Office, which will replace the current Mentor and Mercury systems. The satellites were reported to have been under development in 1995. The Intruder system was designed to combine the ELINT and COMINT roles of SIGINT spacecraft, which had previously been performed by different satellites, the Rhyolite and Vortex series respectively. Source
A United Launch Alliance Delta 4 Heavy rocket carrying a classified National Reconnaissance Office payload won't launch until next year, according to the NRO. The launch from Cape Canaveral Air Force Station's Launch Complex 37, which had been targeted for next Tuesday, is now anticipated in mid- to late-January. Executives decided to put off a launch this month during a meeting Monday that reviewed technical and personnel issues. No target date has been set yet.