Topic: S-NPP VIIRS Non-Roll Lunar Calibration Scheduled for June 24, 2026

Date/Time Issued: June 22, 2026 1458Z

Product(s) or Data Impacted: S-NPP VIIRS Data

Date/Time of Initial Impact: June 24, 2026 01:17:12Z

Date/Time of Expected End: June 24, 2026 01:22:16Z

Length of Outage: See Details.

Details/Specifics of change: On June 24, 2026, S-NPP VIIRS will perform a Lunar Calibration without a spacecraft roll maneuver, centered at 01:19:44Z. Only VIIRS science data will be impacted while VIIRS encoder offset and gain are set for Moon observation.

This notification was sent to ESPC.Notification@noaa.gov mailing list. If you wish to unsubscribe or subscribe to this list, please contact ESPC Help-Desk at ESPCOperations@noaa.gov with your request. Please note: it may take up to two business days to process your request. For any additional information you can reach ESPC at 301-817-3880 (24x7)