Atlas V – SBIRS-GEO 3 – Launch Profile

Launch Timeline

 

 

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

 

 

Launch Data

Launch Vehicle: Atlas V 401Launch Site: SLC-41 Cape CanaveralLaunch Date: January 21, 2017
Window: 00:42-01:22 UTC
Payload: SBIRS-GEO 3 (~4,500kg)Flight Azimuth: 95.9°

Target Orbit:Type: Geostationary Transfer OrbitPerigee: 185.2 Kilometers
Apogee: 35,786 Kilometers
Inclination: 23.29 Degrees
Image: ULA
Image: ULA

Ground Track Map

Credit: United Launch Alliance
Credit: United Launch Alliance