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Sunday, September 23, 2012

Over the last two years, DigitalGlobe set out to expand the company’s ability to download imagery quicker and cover more of the earth’s surface within a shorter window of time. The result is a much shorter period of time between data collection to product delivery. I sat down with Jeff Culwell, DigitalGlobe's director of Satellite Control Systems, at his office in Longmont, Colorado, for a better understanding of how the improvements were accomplished.

DigitalGlobe’s Remote Ground Terminal (RGT) expansion project began in 2010. (See figure at right: Norwegian Polar Institute – Antarctic Research Station & Kongsberg Satellite Services TrollSat Ground Station)

The first phase of the operation added four new ground terminals in Asia that allowed DigitalGlobe to capture 50% new capacity and improve latency by 34%.  The last terminal in this phase was added in late 2011.

The second phase adds three terminals in North America. In all, the new RGT’s cover about 45% of earth’s land mass and 90% of earth’s surface within 20 minutes. Phase two has been completed in August 2012. (Figure below: Kongsberg Satellite Services (KSAT) – TrollSat Ground station antenna Looking North)

Images courtesy of DigitalGlobe

by Joe Francica on 09/23 at 03:50 PM | Comments | Bookmark and Share
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