The baseline Atlas II increased Atlas-Centaur performance for Defense Satellite Communications System, UHF Follow-On, and commercial payloads. Its pressure-stabilized Atlas stage used the MA-5A propulsion system and fed a two-engine Centaur II. Ten vehicles flew successfully from Eutelsat II F3 in December 1991 through UHF F8 in March 1998.
Future launches and major activity directly linked to this vehicle family.