1940 GMT (2:40 p.m. EST)
T-minus 5 hours, 15 minutes and counting! The countdown has commenced for this evening's scheduled launch of the Delta 4 rocket to deliver a new GPS navigation satellite into orbit for the United States military and civil users.
The count has a planned built-in hold at T-minus 4 minutes, leading to liftoff at 8:40 p.m. EST (0140 GMT).
Technicians have finished all hands-on work at the launch pad and Complex 37 has been cleared of personnel in advance of fueling the rocket's two stages this afternoon. Pad systems and equipment stand ready for fueling activities, which should kick off shortly. http://www.spaceflightnow.com/delta/d365/status.html