A United Launch Alliance Atlas V rolls out for launch at Space Launch Complex-41 with the Air Force’s Space-Based Infrared System (SBIRS) GEO-2 spacecraft. Launch is set for Tuesday, March 19 at 5:21 p.m. EDT. SBIRS is a consolidated system intended to meet United States infrared space surveillance needs for decades to come. The SBIRS program addresses critical war fighter needs in the areas of missile warning, missile defense, technical intelligence and battle space characterization.