 This is Atlas mission control at T-minus 10, 9, 8, 7, 6, 5, 4. We have main engine start. We have ignition and liftoff, liftoff of the United Launch Alliance Atlas V rocket carrying the second mobile user objective system mission for the United States Navy. MUO significantly enhances communications for U.S. forces on the move. You'll be hearing the voice of Matt Donovan providing launch vehicle... And we are in the zero angle with that phase of flight. The booster world program has been completed. We've got Mach 1 going through the region of maximum dynamic pressure. The vehicle is throttling back up at this point and we've now throttled back down in preparation for SRB burnout. Looks good. The vehicle is continuing nominally and we are now throttling back up to our 2.5G segment. We have SRB jettison. Good indications of jettison on the first two and the next three SRBs. Q-alpha steering is now enabled.