Atlas V - AFSPC-11 - Launch Profile
Launch Timeline
| Time | Event |
|---|---|
| T-0:00:02.7 | Stage 1 - RD-180 Ignition |
| T-0 | Booster Ignition Command |
| T+0:00:01.1 | Liftoff |
| T+0:00:02.1 | Full Thrust Level |
| T+0:00:03.9 | Pitch/Yaw Maneuver Initiation |
| T+0:00:34.4 | Mach 1 |
| T+0:00:45.9 | Maximum Dynamic Pressure |
| T+0:01:35 | Solid Rocket Booster Burnout |
| T+0:01:47.0 | Booster 1 & 2 Separation |
| T+0:01:48.5 | Booster 3, 4 & 5Separation |
| RL-10C Boost Phase Cool-Down | |
| Centaur RCS Pyro Valve Initiation | |
| T+0:03:31.0 | Payload Fairing Jettison |
| Stage 1 Throttle down for MECO | |
| T+0:04:33.5 | Main Engine Cutoff |
| T+0:04:39.5 | Atlas/Centaur Separation |
| T+0:04:49.5 | Centaur Ignition 1 - Burn Duration: 6:01.5 |
| T+0:10:50.7 | Centaur Cutoff 1 - Low Earth Orbit |
| T+0:10:50.7 | Coast Phase - Duration: 12:06.7 |
| T+0:22:57.4 | Centaur Ignition 2 - Burn Duration: 5:48:9 |
| T+0:28:46.3 | Centaur Cutoff 2 - Elliptical Transfer Orbit |
| T+0:28:46.3 | Coast Phase - Duration: 5:05:59.9 |
| T+5:34:46.2 | Centaur Ignition 3 - Burn Duration: 2:36.2 |
| T+5:37:22.4 | Centaur Cutoff 3 - GEO Drift Orbit |
| T+5:37:22.4 | Spacecraft Separation Window Open |
| T+6:57:24.3 | Spacecraft Separation Window Close |
| T+6:57:24.4 | End of Mission |
Launch Data
Launch Date: April 14, 2018
Launch Window: 23:13-01:11 UTC
Launch Site: SLC-41, Cape Canaveral
Launch Vehicle: Atlas V 551
Launch Azimuth: 89.9°
Ascent Duration: 6 Hours and 57 Minutes
Target Orbit
Type: Geostationary Drift Orbit
Altitude: 39,000 km*
Inclination: 0.00°
Eccentricity: 0.00
*ULA Mission Booklet states a semi major axis of 24,498.1 nmi, potentially a typo for 22,498 nmi, corresponding to a more reasonable drift orbit 35,295 km in altitude
Image: ULA
Ground Track Map
Image: United Launch Alliance
