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George Diller/NASA Launch Commentator: 10,

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9,

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8,

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7

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6,

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5,

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4,

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3,

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2,

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1,

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Main engine start

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and liftoff of the Delta II rocket with SMAP,

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making global observations of soil moisture
for climate forecasting.

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Delta II Ascent Commentator: Good chamber pressure
on the main engine.

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Good chamber pressure on both vernier engines.

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Good chamber pressure on all three solids.

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Twenty-seven seconds into the flight.

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Coming up 46 seconds, still looking good.

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50 seconds in Max-Q. Vehicle now having maximum
dynamic pressure on the vehicle.

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57 seconds. Chamber pressure beginning to
decline on the solids, as expected.

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And we have burnout of the solids,

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we�ll be holding on to those solids for
about 30 more seconds to assure a safe water-

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impact point.

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One minute, 12 seconds into the flight. Still
looking good.

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One minute, 25 seconds chamber pressure holding
on the main engine and in both

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verniers.

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One minute, 30 seconds.

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Standing by for separation.

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And we have separation of the solid rocket
motors.

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The Delta II vehicle now only weighs one-half
of what it did at launch,