Live coverage: Atlas 5 countdown and launch journal

The United Launch Alliance Atlas 5 rocket with the NROL-52 spacecraft aboard moved to the launch pad this morning for liftoff Saturday to serve the national interest. Liftoff is scheduled for 3:31 a.m. EDT (0731 GMT).

Kicking off United Launch Alliance’s ambitious 2016 with as many as 15 launches planned for the U.S. military, intelligence community, NASA and commercial clients, an Atlas 5 rocket will thunder to orbit Friday to deploy the last satellite in the current generation of GPS navigation spacecraft.

The Atlas 5 rocket emerges from the Vertical Integration Facility for rollout to Complex 41 at Cape Canaveral in preparation to launch GPS 2F-11 on Friday at 12:17 p.m. EDT.