Spaceflight Insider

OA-4 mission scrubbed second time due to high ground winds

Orbital ATK Cygnus OA-4 United Launch Alliance Cape Canaveral Photo Credit: Michael Howard SpaceFlight Insider

Photo Credit: Michael Howard / SpaceFlight Insider

CAPE CANAVERAL, Fla. — Launch controllers attempted valiantly to get a ULA Atlas V rocket off of the pad and into the skies, but ground level winds would not play ball. The venerable booster and its payload of Orbital ATK’s OA-4 “SS Deke Slayton II” Cygnus spacecraft were slated to launch to the ISS – that flight is now scheduled for Dec. 5, 2015, with the launch window opening at 5:10 p.m. EST (22:10 GMT).

Winds tomorrow do not bode well for a launch with winds predicted to be at 23–30 miles-per-hour.

For more information about the OA-4 mission: SS Deke Slayton II


Jason Rhian spent several years honing his skills with internships at NASA, the National Space Society and other organizations. He has provided content for outlets such as: Aviation Week & Space Technology,, The Mars Society and Universe Today.

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