For 30 years, the Alaska Satellite Facility has provided consistent, high-quality access to Earth observation data acquired from space and from air. From a single antenna taking its first satellite downlink in 1991, ASF has grown into a multi-antenna NASA satellite ground support facility and a NASA Distributed Active Archive Center (ASF DAAC) with over 13PB of Earth observation data available to download.
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