Here's ULA going official with the 24th:
United Launch Alliance Set to Launch U.S. Navy Payload Feb. 24
Cape Canaveral Air Force Station, Fla. (Feb. 21, 2012) - The launch of an Atlas V carrying the United States Navy's Mobile User Objective System-1 (MUOS-1) payload from Space Launch Complex-41 at Cape Canaveral Air Force Station, Fla., is set for Friday, Feb. 24, following two weather scrubs late last week. The opening of the 44-minute window opens at 5:15 p.m. EST. The Atlas V vehicle will roll back to the launch pad Thursday, Feb. 23 in preparation for launch. The current forecast shows a 40 percent chance of favorable weather conditions for launch. MUOS is a next-generation narrowband tactical satellite communications system designed to significantly improve ground communications for U.S. forces on the move and will provide military users 10 times more communications capability over existing systems.