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Proton/Inmarsat 5 F1 launch timeline
Posted: December 7, 2013

Event Time (h:mm:ss)
Ignition sequence start T-0:00:02.5
Stage one ignition to 40% thrust T-0:00:01.75
Begin stage one thrust to 100% T-0:00:00.9
Liftoff T+0:00:00.0
Maximum dynamic pressure T+0:01:02
Stage two ignition T+0:02:00
Stage one/two separation T+0:02:03
Stage two engine shut down T+0:05:24
Stage two/three separation T+0:05:27
Stage three main engine ignition T+0:05:33
Payload fairing jettison T+0:05:47
Stage three main engine shutdown T+0:09:22
Stage three/Breeze M upper stage separation T+0:09:42
Breeze M first burn ignition T+0:11:16
Breeze M first burn shutdown T+0:15:43
Breeze M second burn ignition T+1:50:30
Breeze M second burn shutdown T+2:10:04
Breeze M third burn ignition T+4:23:49
Breeze M third burn shutdown T+4:34:13
Jettison Additional Propellant Tank (APT) T+4:34:03
Breeze M fourth burn ignition T+4:35:30
Breeze M fourth burn shutdown T+4:43:57
Breeze M fifth burn ignition T+15:15:05
Breeze M fifth burn shutdown T+15:18:34
Breeze M/Sirius FM6 payload separation T+15:31:00

Data source: International Launch Services.