NPOESS
Sign in to saveAlso known as National Polar-orbiting Operational Environmental Satellite System
thumb|Artist's concept of a future NPOESS satellite, 2006.
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thumb|Artist's concept of a future NPOESS satellite, 2006.
The National Polar-orbiting Operational Environmental Satellite System (NPOESS) was to be the United States' next-generation satellite system that would monitor the Earth's weather, atmosphere, oceans, land, and near-space environment. NPOESS satellites were to host proven technologies and operational versions of sensors that were under operational-prototyping by NASA, at that time. The estimated launch date for the first NPOESS satellite, "C1" or "Charlie 1" was around 2013. Issues with sensor developments were the primary cited reason for delays and cost-overruns.
Excerpted from Wikipedia’s “NPOESS” article, available under the CC BY-SA 4.0 licence.