The NOAA-21 satellite successfully completed its post-launch checkout, verification, and validation of all the sensor data and key performance parameters. It is now the primary satellite in NOAA’s Joint Polar Satellite System with redundant back up provided by NOAA/NASA Suomi National Polar-orbiting Partnership (SNPP) and NOAA-20 satellites. The performance of all NOAA-21 data meets specifications and are within family compared to SNPP and NOAA-20. The global data provided by the mission is critical for numerical weather prediction models for making timely and accurate weather forecasts, as well as for detecting and monitoring environmental events such as floods, fires, and changes in atmospheric chemistry such as ozone concentration.
The Suomi National Polar-orbiting Partnership (Suomi-NPP) mission successfully completed ten years of operations since its launch in 2011, and NOAA-20 is in its fourth year of operations since 2017. These two satellites have revolutionized how remote sensing measurements are used in both weather prediction as well as in other applications that serve a variety of users. The third JPSS satellite (JPSS-2) is scheduled to be launched on November 1, 2022. Some major contributions of the mission over the past decade are highlighted here.
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