The NRC guidance divides the lower 48 United States into three regions as to wind speed, missile size, depressurization, etc.

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The combined speed of the missile and satellite at impact is expected to be about 22, 000 miles per hour.

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Among those items reportedly slated for decontrol are sensors capable of testing missile silos, high-speed microprocessors with a wide variety of applications for military systems, solid and liquid rocket motors and spacecraft, advanced lasers, electronic navigation equipment, and sophisticated machine tools.

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Patriot missile components including advanced radar waveguides, microwave devices, high-speed analog to digital converters, microprocessors, precision gimbals for the missile-seeker system, highly miniaturized radio frequency communications, on-board sensors, advanced signal-processing systems.

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South Korea also said it would speed up plans to develop its own missile-defense systems.

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It also has plans to add an early-warning radar system in western Japan, while South Korea has pledged to speed up the introduction of its own missile defense systems.

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But he said when the missile was fired, the latest weather data, which affects the speed and direction, was not used.

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