This is Atlas Mission Control at T-10, 9, 8, 7, 6, 5, 4. We have main engine start. We have ignition and lift off, lift off of the United Launch Alliance Atlas 5 rocket carrying the second mobile user objective system mission for the United States Navy. U.O. significantly enhances communications for U.S. forces on the move. We're hearing the voice of Matt Dunn of in providing launch vehicle and we are in the zero-angle attack mission progress. The booster world program has been completed. We've got Mach 1. The vehicle is throttling back up at this point. Engine performance continues to look good. The booster has gotten closed loop. We've now throttled back down in preparation for SRB burnout. And we have 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 2 and the next 3 SRBs. Q-Aufous steering is now enabled.