United Launch Alliance with their flagship Atlas V (551) will realize next mission for U.S. Air Force. Rocket in 551 configuration will use 5 m wide payload fairing, five SRB boosters and single RL-10A engine installed in Centaur upper stage. As far as the main payload was not unveiled, we know that secondary payload will be ESPA Augmented Geostationary Laboratory Experiment (EAGLE) satellite. Satellite during its lasting 12 months mission will perform series of experiments devoted mainly for improving quality of imaging devices used by remote sensing satellites.
Read more => Atlas V • AFSPC-11