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[b]On the pad![/b] Our Atlas V rocket has arrived at its Cape Canaveral pad to launch two astronauts Monday night (May 6) on Boeing's Crew Flight Test in NASA's Commercial Crew Program. Butch Wilmore and Suni Williams, both retired Navy captains, space shuttle fliers and past long-duration residents aboard the International Space Station, will test the Starliner spacecraft in preparation for regular crew rotation missions to the station beginning next year. The MLP has been lowered onto the launch pad piers, accomplishing the "harddown" milestone at 11:36 a.m. EDT. Over the next few hours today, umbilical connections will be made with launch pad systems, the environmental control system feeding conditioned air to the rocket and payload will be switched to facility supplies to allow the portable trailers used during rollout to be unplugged and moved away. Later in the afternoon, the first stage will be loaded with its 25,000 gallons of storable RP-1 propellant, a highly refined kerosene fuel. The 11-hour launch countdown will begin Monday morning, leading to a liftoff at precisely 10:34:14 p.m. EDT (0234:14 UTC).
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