Hear and feel the mighty roar of United Launch Alliance (ULA) Delta IV rocket launch as it lifts off from the Cape Canaveral Air Force Station. The Delta IV rocket will carry WGS-9, the eighth satellite of the Wideband Global SATCOM (WGS) for U.S. Air Force Space Command. WGS-9 will provide communications services to various branches of the U.S. military.

LAUNCH WINDOW: 6:35 pm EDT

Best viewing sites for the general public include anywhere along the shores of the Indian River in Titusville, or any of the beaches south of Port Canaveral along the Space Coast. In addition, special viewing locations are available at the Apollo/Saturn V Center and Kennedy Space Center Visitor Complex. For more info or to purchase launch viewing tickets, call 866.737.5235 or visit www.kennedyspacecenter.com

**Launch date, time, and viewing opportunities are subject to change. Launches can be affected by technical and mechanical issues as well as range operations and weather, either in advance or at the last minute.

The launch window is the time period during which the rocket must be launched in order to reach its intended target. If the rocket is not launched during this time period, the launch will be rescheduled for the next available window.

LAUNCH VEHICLE:
Delta IV family of launch vehicles meets requirements to launch high-priority U.S. Air Force (USAF), National Reconnaissance Office (NRO), NASA, and commercial payloads to orbit. The Delta IV launch system is available in five configurations: the Delta IV Medium (Delta IV M), three variants of the Delta IV Medium-Plus (Delta IV M+), and the Delta IV Heavy (Delta IV H). Each configuration is comprised of a common booster core (CBC), a cryogenic upper stage and either a 4-m-diameter or 5-m-diameter payload fairing (PLF). The Delta IV RS-68A main engine, designed and manufactured by Aerojet Rocketdyne, is the largest existing hydrogen-burning engine. This engine requires 80 percent fewer parts than the Space Shuttle Main Engine, is lower risk, has reduced development and production costs and has inherently reliable operation. The Delta IV second stages rely on the RL10 propulsion system, also manufactured by Aerojet Rocketdyne, to power their second stages. The Delta IV employs the RL10B-2 with the world’s largest carbon-carbon extendible nozzle. This rocket will fly in the Medium+ (5,4) configuration.