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The Mission




Rocket: Falcon 9
Payload: Dragon
Date: Dec. 8, 2010
Launch time: 1543 GMT (10:43 a.m. EST)
Landing time: 1902 GMT (2:02 p.m. EST)
Site: SLC-40, Cape Canaveral, Florida

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Falcon 9 countdown timeline
SPACEFLIGHT NOW
Posted: December 6, 2010

L-0 Day December 8, 2010

T-02:35:00....Poll stations to proceed with countdown master autosequence, fuel and oxidizer loading

T-01:40:00....Lower strongback umbilical tower

T-01:00:00....Allow countdown autosequence to proceed with Stage 2 fuel bleed and thrust vector control bleed

T-00:13:00....Poll by SpaceX launch director

T-00:11:00....Logical hold point

T-00:10:00....Begin terminal countdown sequence

T-00:09:43....Open prevalves to chill down first stage Merlin engine pumps

T-00:06:17....Issue command to align flight computer

T-00:05:00....Terminate loading of gaseous nitrogen into second stage

T-00:04:46....Transfer first and second stages to internal power

T-00:03:11....Arm flight termination system

T-00:03:02....Terminate liquid oxygen propellant topping

T-00:03:00....Verify movement of second stage thrust vector control steering actuators

T-00:02:30....SpaceX launch director verifies "go" for launch

T-00:02:00....Range verifies "go" for launch

T-00:01:35....Terminate loading of helium pressurant

T-00:01:00....Command flight computer to start-up state and turn on pad deck water deluge system

T-00:00:50....Check first stage thrust vector control steering actuators

T-00:00:40....Pressurize first and second stage propellant tanks

T-00:00:03....Command first stage engine ignition sequence

T-00:00:00....Liftoff


Data Source: SpaceX


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