Live coverage: Atlas 5 countdown and launch journal

The Atlas 5 rocket emerges from the Vertical Integration Facility for rollout to Complex 41 at Cape Canaveral in preparation to launch GPS 2F-12 satellite on Friday at 8:38 a.m. EST.

Two days after launching from Cape Canaveral with nearly 5,500 pounds of supplies and experiments, an automated SpaceX Dragon cargo craft approached the International Space Station Monday. The Dragon supply ship was grappled by the station’s robotic arm at 7:01 a.m. EDT (1101 GMT).

The United Launch Alliance Atlas 5 rocket that will hurl the four MMS satellites into a highly elliptical Earth orbit on March 12 has completed its basic build up at Cape Canaveral’s Complex 41 Vertical Integration Facility.