Outage Details for #4277

Fetched

2025-11-19 15:00Z (27 days ago)

Source

icvs-snpp

Event

JPSS NPP VIIRS Data Delay

Date

11/12/25

Time (UTC)

11:40

End (UTC)

16:30

Instrument(s)

V

Retrieved from:

ESPC Operations Notice

CCR

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Notes

NPP VIIRS instrument experiencing data outage since Rev 72755 at Fairbanks. Update will be provided when available.

Update #1: The S-NPP VIIRS instrument experienced a data loss event on November 11, 2025 at 11:36:40z due to a single event upset within the rotating telescope assembly. Engineering was able to restore the S-NPP VIIRS instrument to an operational state on November 12 at 16:29:18z with full OP- Day/OP-Night commanding beginning at 19:43:36 daily activity schedule load. All missed S-NPP VIIRS data is unrecoverable. An update will follow after Cal/Val teams validate the data as acceptable. Data used before that validation is completed is at the user’s own risk.