Earth-imaging satellite travels to space

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Tue Sep 18, 7:57 PM ET
VANDENBERG AIR FORCE BASE, Calif. - A rocket carrying a next-generation Earth-imaging satellite blasted off Tuesday on a mission that promises to zoom in on objects as small as 18 inches across.
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The WorldView-1 satellite, built for DigitalGlobe, which supplies much of Google Earth's imagery, was lofted into space aboard a Delta 2 rocket. The satellite separated from the rocket about an hour after liftoff and was circling some 300 miles above the Earth.
WorldView-1 was designed to collect up to 290,000 square miles' worth of imagery a day — an area about the size of Texas. Information gathered by the 5,000-pound probe can be used by governments and companies to assess damage after a natural disaster or plan escape routes before a catastrophe, the company said.
It is expected to be in operation for about seven years.
WorldView-1 is the first of two advanced remote sensing satellites that DigitalGlobe plans to launch. The company has said its sister satellite, WorldView-2, will be ready for launch late next year.
DigitalGlobe, a privately held Colorado-based provider of high-resolution commercial satellite imagery, also manages the QuickBird commercial satellite launched in 2001. While WorldView-1's resolution is only slightly higher than QuickBird, the new probe can store more images because it has a larger onboard system.
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