| T-00:00 |
Main Engine Ignition |
| The Antares rocket's two AJ26 engines ignite on the launch pad. |
|
| T+00:02.1 |
Liftoff |
| Producing about 730,000 pounds of thrust, the rocket's two main engines propel the 131-foot-tall Antares rocket into the sky. |
|
| T+03:54.4 |
First Stage Shutdown |
| After consuming its supply of kerosene and liquid oxygen propellants, the Antares first stage shuts down at an altitude of about 64 miles. |
|
| T+03:59.4 |
First Stage Separation |
| The first stage separates from the second stage, which begins a 103-second coast phase. |
|
| T+0:5:37.2 |
Fairing separation |
| After flying out of the dense lower atmosphere, the Antares rocket jettisons its clamshell-like 12.8-foot-diameter payload fairing. |
|
| T+0:5:42.2 |
Interstage jettison |
| The interstage adaptor connecting the first and second stages is jettisoned. |
|
| T+05:46.2 |
Second Stage Ignition |
| The rocket's solid-fueled Castor 30B second stage ignites at an altitude of 111 miles, ramping up to nearly 90,000 pounds of thrust during a 128-second burn. |
|
| T+07:54.4 |
Second Stage Shutdown |
| The Castor 30B second stage burns out after reaching a target orbit with a perigee of 130 miles, an apogee of 185 miles, and an inclination of 51.64 degrees. |
|
| T+09:54.4 |
Payload separation |
| The second stage deploys the Cygnus spacecraft. |
|
