Topic:  S-NPP VIIRS Instrument issue

Date/Time Issued:  June 28, 2022  0605Z

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

Date/Time of Initial Impact:  June 28, 2022 03:41Z

Date/Time of expected end Time: TBD

Length of Outage: TBD

Details/Specifics of Change:  During Rev 55272 (AOS 04:43:32Z), Operations received multiple VIIRS YH alarms indicating S-NPP VIIRS experienced an anomaly and the instrument entered an anomalous state (single board computer lockup suspected). Engineering has been contacted and is investigating. All science and telemetry data will not be available until the instrument is restored to an operational state. All missed data will not be recoverable. The NOAA-20 VIIRS instrument will continue to provide all the primary VIIRS data needs.

Contact Information for Further Information: ESPC Operations at or 301-817-3880

Web Site(s) for applicable information: N/A

Contact Information for Further Information: ESPC Operations at and 301-817-3880

Web Site(s) for Applicable Information: N/A

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