On Wednesday, Dec. 3, 2025, from 8 a.m. to 9 a.m. ET there will be planned maintenance downtime at NASA's Atmospheric Science Data Center (ASDC) and the operating systems will be temporarily unavailable. This is an urgent update for critical vulnerabilities. We apologize for any inconvenience and appreciate your patience as we work to improve our systems.
Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.
Suomi NPP data announcement