Update #1: Operations was able to recover the NOAA-21 spacecraft to a valid Geolocation state on July 20, 2024. Cal/Val teams have confirmed that NOAA-21 Science products are meeting mission specifications and ready for operational use.

Topic: Geolocation invalid on NOAA-21 spacecraft 

Date/Time Issued: July 20, 2024 2002Z

Product(s) or Data Impacted: All NOAA-21 Science Data Products

Date/Time of Initial Impact: July 20, 2024 06:18 UTC

Date/Time of expected end Time:   TBD

Duration: TBD

Details: Starting on July 20 at ~06:18 UTC, the geolocation of the NOAA-21 spacecraft entered a degraded state causing the data to be inaccurate and out of mission specifications. Engineering has started spacecraft recovery activities. 

All PDA OPS subscriptions for all NOAA-21 science products will be disabled at 10:10 UTC on July 20, 2024. 

Direct Broadcast (DB) users should be aware that NOAA-21 science data is not ready for operational use. 

The NOAA-20 satellites will continue to provide JPSS science data needs as the secondary satellite.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880 Web Site(s) for Applicable Information: N/A

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