ULA Atlas OA-4 Cygnus Launch Set for December 3

Everything is progressing towards the OA-4 launch of the Cygnus spacecraft for Orbital ATK under the NASA Commercial Resupply Services (CRS) contract. The mission is set to lift off on a ULA Atlas V rocket on Thursday, Dec. 3 from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. The 30 minute launch window opens at 5:55 p.m. EST. Today’s L-3 forecast continues to a 60 percent chance of favorable weather conditions for launch.

Weather Forecast

Launch day overall probability of violating weather constraints: 40%
Primary concerns: Cumulus Clouds, Disturbed Weather, Thick Clouds

24-hour delay overall probability of violating weather constraints 60%
Primary concerns: Cumulus Clouds, Disturbed Weather, Thick Clouds, Ground Winds