Current Aegis BMD hardware includes the SM-3 Block-1a missile and other improvements to the Aegis Weapons System. Future development of the Aegis BMD system includes Launch on Remote capability, upgraded SM-3 avionics and hardware, and an upgraded Aegis Weapon System. In 2012 Aegis Ballistic Missile Defense will merge with Aegis Open Architecture and deliver the benefits of both platforms. The Launch on Remote capability involves the use of off-board sensors, such as the Space Tracking and Surveillance System to provide a targeting solution for a SM-3 launch.