Update #2: Operations recovered the S-NPP spacecraft to a valid geolocation state at ~17:20 UTC on November 6, 2024. Cal/Val teams have confirmed that all S-NPP Science products are meeting mission specifications and ready for operational use, effective 17:20 UTC November 6, 2024. 

All S-NPP Science products will be enabled on PDA OPS at 16:30 UTC on November 8, 2024. S-NPP High Rate Data (HRD) will be enabled at 18:15 UTC (Rev #67538) on November 8, 2024. Direct Broadcast (DB) users can use the equivalent S-NPP science Community Satellite Processing Package (CSPP) LEO products for operations. 

This concludes the S-NPP spacecraft anomaly.

Update #1: S-NPP data recovery activities are planned for no earlier than November 7, 2024. PDA Ops subscriptions and High Rate Data (HRD) will be re-enabled once Cal/Val teams verify that S-NPP products meet mission specifications.

Topic: S-NPP Data Outage

Date/Time Issued: November 8, 2024 1653Z

Product or Data Impacted: All S-NPP products

Date/Time of Initial Impact: November 2, 2024 2215Z

Date/Time of Expected End: November 8, 2024 1630Z

Length of the Outage/Event: 139 Hours 15 Minutes

Details/Specifics: Starting around 2215Z on November 2, 2024, S-NPP’s geolocation capabilities entered into a degraded state. Operations will coordinate spacecraft recovery activities beginning Monday, November 4, 2024. Data assessment by Cal/Val teams will subsequently follow to ensure S-NPP products meet mission specifications.

NOAA does not recommend using S-NPP Products from observations taken after 2215Z on November 2, 2024 for operational purposes. PDA OPS subscriptions for all S-NPP science products were disabled at 0100Z on November 3, 2024. High Rate Data (HRD) was also disabled at 01:18z on November 3, 2024.

The NOAA-21 and NOAA-20 satellites continue to provide science data as the primary and secondary satellites, respectively, within the JPSS Constellation. Further updates will be posted, as needed.

This notification was sent to ESPC.Notification@noaa.gov, a mailing list you are subscribed to. If you wish to unsubscribe, please contact

ESPC Help-Desk at ESPCOperations@noaa.gov requesting to "Unsubscribe". Please note: it may take up to two business days to process your unsubscribe request.

For any additional information you can reach ESPC at 301-817-3880 (24x7)