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VANDENBERG AIR FORCE BASE, Calif. – Technicians connect NASA's Soil Moisture Active Passive, or SMAP, spacecraft to the Delta II payload attach structure in the Astrotech payload processing facility on Vandenberg Air Force Base in California. The structure will secure the spacecraft to the rocket's second stage. SMAP will launch on a Delta II 7320 configuration vehicle featuring a United Launch Alliance first stage booster powered by an Aerojet Rocketdyne RS-27A main engine and three Alliant Techsystems, or ATK, strap-on solid rocket motors. Once on station in Earth orbit, SMAP will provide global measurements of soil moisture and its freeze/thaw state. These measurements will be used to enhance understanding of processes that link the water, energy and carbon cycles, and to extend the capabilities of weather and climate prediction models. SMAP data also will be used to quantify net carbon flux in boreal landscapes and to develop improved flood prediction and drought monitoring capabilities. Launch from Space Launch Complex 2 is targeted for Jan. 29, 2015. To learn more about SMAP, visit http://www.nasa.gov/smap. Photo credit: NASA/Chris Wiant, U.S. Air Force Photo Squadron