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SpaceX Launch Director: Ten

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Nine

3
00:00:02,330 --> 00:00:03,320
Eight

4
00:00:04,580 --> 00:00:03,850
Seven

5
00:00:04,580 --> 00:00:05,530
Six

6
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Five

7
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Four

8
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Three

9
00:00:08,500 --> 00:00:09,470
Two

10
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One

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and liftoff.

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Liftoff of the SpaceX Falcon 9 rocket, launching Dragon to the International Space Station and returning

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cargo resupply missions to U.S. soil.

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SpaceX Launch Controller: Starting gravity turn.

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Acquisition of signal.

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Mike Curie/NASA Public Affairs: T plus 45 seconds. One minute and 10 seconds after liftoff,

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the Falcon 9 will reach supersonic speed, passing through the area of maximum dynamic pressure 10

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seconds later.

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SpaceX Launch Controller: Vehicle is on a nominal trajectory of 5 kilometers in altitude,

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velocity of 230 meters per second and downrange distance of 700 meters. Vehicle is supersonic.

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Mike Curie/NASA Public Affairs: Falcon now through Max Q.

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SpaceX Launch Controller: Vehicle has reached maximum aerodynamic pressure.