Topic: NOAA-20 VIIRS Non-Roll Lunar Calibration Scheduled for March 28, 2026


Date/Time Issued: March 10, 2026  1857Z


Product(s) or Data Impacted: NOAA-20 VIIRS Data


Date/Time of Initial Impact: March 28, 2026 18:46:09Z


Date/Time of Expected End: March 28, 2026 18:51:15Z


Length of Outage: See Details.


Details/Specifics of change: On March 28, 2026, NOAA-20 VIIRS will perform a Lunar Calibration without a spacecraft roll maneuver, centered at 18:48:42Z. Only VIIRS science data will be impacted while VIIRS encoder offset and gain are set for Moon observation.  

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