Update #2: KaTX functionality on NOAA-21 for SMD was restored at 21:55 UTC on Aug 11, 2023. SMD data will start to be available from MCM at 22:37 UTC. Engineering expects all data between 14:59 UTC to 22:37 UTC to be recovered by 04:29 UTC Aug 12, 2023 at SVL.

Note: NOAA-21 at present is a tertiary spacecraft, NOAA-20 is our primary spacecraft for SMD data.

Update #1: After further investigation, the NOAA-21 spacecraft KaTX entered a non-nominal state at ~15:43 UTC on Aug 11, 2023. NOAA-21 SMD data over the next several contacts will experience latency. Engineering will continue recovery over the next two contacts (Rev 3895[20:03:15 - 20:14:22]UTC, Rev 3896 [21:45:11 - 21:58:13]UTC). Mission data should resume after the second contact. Recovery of past missing data will continue into the evening over the next few contacts.

Note: The HRD community was not impacted by this anomaly.

Topic: NOAA21 data outage/delay all products

Date/Time Issued: August 12, 2023 0146Z

Product(s) or Data Impacted: All

Date/Time of Initial Impact: August 11, 2023 1543Z

Date/Time of Expected End: August 12, 2023 0445Z

Duration: ~13 Hours

Details: TWTA was off due to commanding latency issues and SMD was not received. Data for REV's 3892 and 3893 will be delayed. Engineers are working on a fix.

Contact Information: ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880

Web Site(s) for applicable information: https://www.data.jma.go.jp/mscweb/en/oper/bulletin_list_H9.html

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