Technicians work on the bottom of the Solid Rocket Booster for the Swift-Delta launch before the SRB is raised.

Technicians on Pad 17-A, Cape Canaveral Air Force Station, work on the bottom of the Solid Rocket Booster for the Swift-Delta launch before the SRB is raised into the mobile service tower. The SRB is one of three to be attached to the Boeing Delta rocket that is the launch vehicle for the Swift spacecraft and its Gamma-Ray Burst Mission. Swift is a medium-class Explorer mission managed by NASA’s Goddard Space Flight Center in Greenbelt, Md.