NPOESS Preparatory Project
Project Description[Text Source, NPOESS Preparatory Project: http://npp.gsfc.nasa.gov/misison_details.html ]
The NPOESS Preparatory Project (NPP) represents a critical first step in building this next-generation satellite system. Goddard Space Flight Center leads NASA's effort to launch a satellite that will carry the first of the new sensors developed for this next-generation system, previously called the National Polar-orbiting Operational Environmental Satellite System (NPOESS) and now the Joint Polar Satellite System (JPSS).
More Information: http://npp.gsfc.nasa.gov/misison_details.html