EST/2237 GMT from Cape Canaveral Air Force Station in Florida.Perched on top of the rocket is a 6,400-pound (2,900 kg) communications satellite owned by Luxembourg-based SES S.A., which currently operates a 54-satellite fleet, the world's second-largest.The satellite, known as SES-8 and worth about $100 million, will be positioned to provide television, cable, broadband and other services to custo