clipped from: www.spacewar.com   

The ARTEMIS sensor was developed for the Department of Defense's Tactical Satellite program.
A hyper-spectral imaging sensor developed by Raytheon to demonstrate and assess military applications from satellites launched on demand has been delivered to Kirtland Air Force Base, N.M. The delivery marks the sensor's first leg of a journey into space scheduled in December aboard a vehicle known as TacSat-3.

The ARTEMIS (Advanced Responsive Tactically Effective Military Imaging Spectrometer) program called for Raytheon Space and Airborne Systems to design and build the sensor within 15 months as part of a rapid development experiment funded by a $15 million contract from the Air Force Research Laboratory.

The typical development cycle of such a program would be four to five years, according to Brian Arnold, vice president for Raytheon's Space Systems business.