NASA has selected the Lockheed Martin Corp. and Alliant Techsystems (ATK) Athena Launch Vehicle Family to become part of its Launch Services II contract. Vehicles selected fulfill NASA's requirements for domestic launch services with a minimum performance capability of placing a 250-kg spacecraft in a 200-km low Earth orbit (LEO) at an inclination of 28.5°. Athena can carry payloads up to 1800 kg to LEO. Utilizing a large-volume 92-in diameter payload fairing, the vehicle accommodates a wide range of satellites and missions as well as lunar missions. Under this contract, the rockets could be launched from East and West Coast launch sites, such as Cape Canaveral Air Force Station, FL, and Kodiak Launch Complex, AL. These second-generation launch vehicles include the two-stage Athena Ic and three-stage Athena IIc launch vehicles. The rockets use the same flight-proven ATK CASTOR 120 for Stage I and Stage II.