VANDENBERG AIR FORCE BASE, Calif., Feb. 10 (UPI) -- The United Launch Alliance completed its NROL-45 payload launch for the National Reconnaissance Office in support of a national defense mission.
The NROL-45 payload was launched aboard a Delta IV Medium Evolved Expendable Launch Vehicle. For the launch, the vehicle used a single ULA common booster core supported by an Aerojet Rocketdyne RS-68A main engine in addition to two Orbital ATK GEM-60 solid rocket motors.