Atlas V - Cygnus OA-4 - Launch Profile
Launch Timeline
| Time | Event |
|---|---|
| T-0:00:02.7 | Stage 1 - RD-180 Ignition |
| 0:00:00:00 | Booster Ignition |
| T+0:00:01.1 | Liftoff |
| T+0:00:02.1 | Full Thrust Level |
| T+0:00:18:4 | Pitch/Roll Maneuver Initiation |
| T+0:01:22:6 | Mach 1 |
| T+0:01:33:8 | Maximum Dynamic Pressure |
| T+0:04:15.6 | Stage 1 Cutoff |
| T+0:04:21.6 | Atlas/Centaur Separation |
| T+0:04:31.6 | Centaur Ignition 1 - Burn Duration: 13:45.1 |
| T+0:04:39.6 | Payload Fairing Jettison |
| T+0:18:16.7 | Centaur Cutoff 1 |
| T+0:18:16.7 | Coast Phase |
| T+0:21:05.7 | Cygnus Spacecraft Separation |
Target Orbit
Type: Low Earth Orbit
Perigee: 229.8 km
Apogee: 230.0 km
Inclination: 51.6°
Launch Azimuth: 44.4°
Image: Orbital ATK
Ground Track Map
Credit: United Launch Alliance