CAPE CANAVERAL, Florida -- An Atlas V 551 rocket is currently 'GO' for launch from Space Launch Complex 41 at the Cape Canaveral Air Force Station. The launch window begins today at 5:42 p.m. through 6:26 p.m. E.S.T. There is a 60% chance that weather may scrub the launch.
The Atlas payload is a U.S. Navy communications satellite dubbed MUOS, an acronym for Mobile User Objective System. It is a next generation narrow-band tactical satellite communications system which will provide ten times more communications capability over existing systems.