1. CONCLUSIONS The NPOESS SESS is the future cornerstone of the DoD's and DOC's space environmental monitoring missions from a polar-orbiting satellite. The thirteen NPOESS space EDRs will be derived from measurements made by the SESS instrumentation in terms of the neutral and charged particle background, electric and magnetic fields, and optical signatures of the aurora and airglow. The baseline SESS consists of multiple distinct sensors that provide a synergistic complement of space environmental data. The advanced capabilities offered by SESS will provide Space Weather operators with significantly improved capabilities across a broad range of user needs. The NPOESS SESS is currently under development by the Northrop Grumman Corporation and the Ball Aerospace & Technologies Corp. for the NPOESS IPO. The first operational deployment of the SESS is scheduled in2011.
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