Video: Atlas 5 GPS 2F-8 Launch Highlights

The first of up to seven missions planned on United Launch Alliance’s Atlas and Delta rocket fleets this year is scheduled for Saturday from California’s Central Coast, when a Delta 4-Heavy is set for blastoff on a spy satellite delivery flight delayed a month to troubleshoot a hydrogen fuel leak in a booster.

The revised Atlas 5 rocket firing order includes two national security missions this summer before launching NASA’s daring asteroid sampler mission in September as originally planned.

The United Launch Alliance Delta 4-Heavy rocket fired away from Cape Canaveral at 1:51 p.m. EDT today to deploy a covert surveillance satellite for the U.S. National Reconnaissance Office.