Update#2 The major anomaly of slow data rate of S6 telemetry from the Fairbanks ground station to EUMETSAT was resolved on December 1, 2022. The root cause was ultimately traced to a faulty optical transceiver that affected the NRT (near-Real Time) and STC (short time critical) service from 10 Nov – 1 Dec (Fairbanks passes only). Based on the long haul transmission of these data, NOAA and EUMETSAT are collaboratively working on greater improvements to identify and resolve these very rare issues by augmenting with even more capable end-to-end system monitoring and systematic performance testing.
Update#1 Sentinel-6A Service has resumed:
Topic: Product Outage/Anomaly: Sentinel-6A Service Data Delay
Date/Time Issued: December 13, 2022 2253Z
Product(s) or Data Impacted: NRT P4 HR L2P (SLA) - S6A and NRT Altimetry HR L2 Products - S6A, STC P4 HR L2P (SLA) - S6A and STC Altimetry HR L2 Products - S6A
Date/Time Initial Impact: November 10, 2022 ~1300Z
Date/Time of Expected End: December 01, 2022 1300Z
Length of Event: 21 Days
Details/Specifics of Change: Since 10 November 2022, Sentinel-6A passes out of FCDA are having issues transferring the data to Eumetsat's servers. The transfer rate is erratic and fluctuating. There are passes where all data fails to transfer before the next Sentinel-6A pass starts. The missed data is currently being archived but not sent to Eumetsat. OSPO and Eumetsat are investigating to determine the cause of the transfer issues. No more updates will be sent by ESPC until the issue is resolved.
Web Site(s) for Applicable Information: Sentinel-6 | EUMETSAT
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