1. WorldView-2 (QuickBird replacement) expected to launch in 2009 on Delta Ⅱ; delayed from 2008rn2. Dual coverage option chosen by DigitalGlobe will offer customers a wide variety of geospatial datarn3. WorldView replacement satellites will be required in the next decadern4. DigitalGlobe could choose constellation of smaller spacecraft over larger replacements.
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