Topic: S-NPP VIIRS Non-Roll Lunar Calibration Roll Scheduled for June 06, 2025

Date/Time Issued: June 04, 2025 1401Z

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

Date/Time of Initial Impact: June 06, 2025 10:47:25Z

Date/Time of Expected End: June 06, 2025 10:52:29Z

Length of Outage: See Details.

Details/Specifics of change: On June 06, 2025, S-NPP VIIRS will perform a Lunar Calibration without a spacecraft roll maneuver, centered at 10:49:57Z. Only VIIRS science data will be impacted while VIIRS encoder offset and gain are set for Moon observation.

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