It’s back to the launch pad for an Atlas V rocket that was supposed to lift off Monday morning, but was delayed.
United Launch Alliance officials say the environmental control system duct that was blamed for the delay has been replaced.
The launch is now set for Wednesday from Launch Complex 41 at Cape Canaveral Air Force Station.
The rocket will carry a classified payload into orbit on behalf of the U.S. National Reconnaissance Office.
Weather conditions are 70 percent favorable for the morning lift off.
The launch window opens at 8:28 a.m. and ends at 9:27 a.m.