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NPOESS Preparatory Project, also called Suomi NPP


Designation 37849 / 11061A
Launch date 28 Oct 2011
Country of origin United States
Mission Meteorology
Perigee/Apogee 833 km, sun-synchronous
Inclination 98.7°
Period 101 min
Launch vehicle Delta 2 #357

Interim satellite to serve both civilian and military users while waiting for JPSS.

Tbe VIIRS instrument suffers a tungsten contamination which darkens the mirror.

sat-index articles

n2yo.com tracking

Technical data


Prime contractor Ball Aerospace
Platform BCP-2000
Mass at launch  
Dry mass  
Solar array  
Stabilization 3-axis
DC power  
Design lifetime 7 years

Carries 5 main instruments (4 are new), including
ATMS (passive microwave radiometer)
Cross-track Infrared Sounder (CrIS)
Visible/Infrared Imager Radiometer Suite (VIIRS)
Ozone Mapping and Profiler Suite

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