T-17 days - solid rocket booster attached to Atlas V.
Technicians with United Launch Alliance installed a single AJ-60A Solid Rocket Motor to the Atlas V core stage earlier today, completing assembly of the first stage of OSIRIS-REx’s launch vehicle. The rocket is assembled in the Vertical Integration Facility at SLC-41.
The Centaur Upper Stage will be mated later this week. On August 24, OSIRIS-REx is slated to be encapsulated in the four-meter diameter payload fairing which will protect it during ascent out of Earth’s atmosphere. The spacecraft was attached to the Payload Fairing Adapter earlier today.
Since Atlas is flying in its 411 configuration, only a single Solid Rocket Motor will be attached. The rocket will produce more than 1,208,700 pounds of thrust at takeoff.
P/c: Dante Lauretta.