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The first US weather satellite in deep space, the DSCOVR is (http://www.aerospace-technology.com/news/newsnoaas-dscovr-satellite-reac...) currently located at Lagrange point 1 (L1), and will soon undergo final instrument checks.The satellite is designed to provide measurements of solar wind conditions to help monitor potentially harmful solar activity. It will replace Nasa's advanced composition explorer (ACE) research satellite, which will continue to serve the science community.