All SNPP VIIRS forward processing has been temporarily suspended due to a GPS anomaly issue that began at 231Z November 2, 2024. Given this degradation, all production of SNPP VIIRS land data products are suspended until further notice. Users are advised not to use any SNPP VIIRS data products that have been produced and are being distributed since 215Z on November 2, 2024. A possible mitigation effort will start today, Monday November 4, 2024; quality assurance will be performed before forward processing is resumed. NSIDC will post additional details as they are made available. For more details, users may also refer to the VIIRS alerts posted here: https://ladsweb.modaps.eosdis.nasa.gov/alerts-and-issues/
NASA NSIDC DAAC will continue to post updates on our website https://nsidc.org/data/user-resources/data-announcements as they become available.
Update 11/19/2024: The SNPP onboard geolocation system was reset on Wednesday, November 6 around 17:17 UTC. The Calibration/Validation teams have finished verifying SNPP data products and found them to be suitable for operations. SNPP VIIRS forward processing has resumed as of November 9, 2024.