WEBVTT

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GEORGE DILLER: Pad water system is now on. T-15 seconds.

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Launch vehicle armed.

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Nine, eight, seven, six, five, four,

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go for main engine start, three, two, one, zero and liftoff of the Delta II rocket with STEREO,

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giving us a three-dimensional look at the physics of our sun.

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And the vehicle is working its way through the liftoff's, liftoff transients.

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Power motor chamber pressures all looking symmetrical.

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Main engine burning verniers continue to do well.

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T plus 30 seconds, approaching mach 1.

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