Suomi NPP VIIRS Data Outage / Anomaly on August 2, 2026

Update August 11, 2026, 06:30 AM: Due to the DayNightFlag setting and other concerns, we are excluding data collected between 02:00 UTC on August 3, 2026, and 16:24 UTC on August 6, 2026 (inclusive), from processing. Please note that standard archive processing for SNPP resumed on August 10, 2026.

Update August 5, 2026, 9:30 AM: We have started receiving S-NPP data and NRT processing resumed with the granule acquired at 13:54 UTC on August 4, 2026. At this time, users are advised to exercise caution when using S-NPP products while the instrument Calibration/Validation teams continue to assess data quality.

Standard processing is still on hold while we await a review by instrument Calibration/Validation and QA teams.

The Suomi-NPP spacecraft is experiencing an anomaly that started at 02:05 Universal Time (UTC) on August 2, 2026. All science data remains unavailable and will not be recoverable until further notice. The last granule for the standard processing was 21:54 UTC on August 02, 2026, and the last granule processed for near real-time processing was 00:06 UTC on August 3, 2026.

We will update this note when we have more information.