| T+00:00 |
Liftoff |
| The first stage Thiokol Castor 120 solid rocket motor is ignited and the Taurus rocket launches from pad 576E at Vandenberg Air Force Base in California. |
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| T+01:20.9 |
Staging and second stage start |
| After burning its solid-fuel propellant, the first stage is jettisioned to fall into the Pacific Ocean. At the same time, the Alliant TechSystems Orion 50S-G solid rocket motor second stage is ignited. |
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| T+02:46.1 |
Second stage separation |
| Having completed its firing five seconds ago, the second stage separates from the rest of the Taurus rocket. The spent stage falls into the Pacific Ocean. |
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| T+02:48.3 |
Third stage ignition |
| The Alliant TechSystems Orion 50 solid rocket motor third stage ignites to continue the climb to orbit. |
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| T+02:53.3 |
Jettison payload fairing |
| The 63-inch long payload fairing that protected the Kompsat and Acrimsat spacecraft during the atmospheric ascent opens like a clam shell and falls away from the rocket.
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|
| T+06:06.8 |
Third stage burnout |
| The Taurus rocket's third stage ends its burn after consuming all the solid-fuel propellant.
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|
| T+10:20.7 |
Third stage separation |
| The spent third stage is separated from the Taurus rocket's upper stage. The stage impacts in the South Pacific Ocean. |
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| T+10:31.7 |
Fourth stage ignition |
| The Taurus rocket's upper stage, an Alliant TechSystems Orion 38 solid rocket motor, ignites to complete the powered flight for this launch. |
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| T+11:43.8 |
Fourth stage burnout |
| The fourth stage completes its firing after consuming all of its solid-fuel propellant. The stage with Kompsat and Acrimsat is now injected into orbit. |
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| T+13:38.8 |
Kompsat separation |
| The Korea Multi-purpose Satellite is released into space from the Taurus rocket. |
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| T+16:06.0 |
Acrimsat separation |
| NASA's Active Cavity Radiometer Irradiance Monitor (Acrimsat) is deployed from the rocket's upper stage, completing the fourth flight of Taurus. |
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