Launch Profile – Atlas V

Time	Event
T-0:00:02.7	Stage 1 - RD-180 Ignition
T-0	Booster Ignition
T+0:00:01.1	Liftoff
T+0:00:02.1	Full Thrust Level
T+0:00:17.9	Pitch/Roll Maneuver Initiation
T+0:01:20.7	Mach 1
T+0:01:30:6	Maximum Dynamic Pressure
	RL-10C Boost Phase Cool-Down
	Centaur RCS Pyro Valve Initiation
	Stage 1 Throttle down for MECO
T+0:04:03.2	Main Engine Cutoff
T+0:04:09.2	Atlas/Centaur Separation
T+0:04:19.2	Centaur Ignition 1 - Burn Duration: 11:03.6
T+0:04:27.2	Payload Fairing Jettison
T+0:15:22.9	Centaur Cutoff 1
T+0:15:22.9	Coast Phase - Duration: 9:30.6
T+0:25:00.1	Centaur Ignition 2 - Burn Duration: 3:38.2
T+0:28:38.3	Centaur Cutoff 2
T+0:43:48.3	SBIRS-GEO 3 Separation
	Centaur CCAM, Coast Phase
	Blowdown