Topic: GOES-WEST Operational Interleave of GOES-17 and GOES-18 October 13, 2022 - November 16, 2022
Date/Time Issued: September 27, 2022 2002 UTC
Product(s) or Data Impacted: GOES-17 ABI L1b Radiances and L2 Cloud and Moisture Imagery replaced with GOES-18 ABI L1b Radiances and L2 Cloud and Moisture Imagery
Date/Time of Initial Impact: October 13, 2022 at 16:01 UTC
Date/Time of Expected End: November 16, 2022 at TBD Time
Length of Outage: N/A
Details/Specifics of Change:
On October 13, 2022 at 1601 UTC, the operational interleave of GOES-17 and GOES-18 will be implemented. At the time of the operational GOES-18 operational interleave, GOES-18 will be located in the West orbital slot (137.0 degrees West), 0.3 degrees from GOES-17 (at 137.3 degrees West).
The interleave configuration entails populating the operational GOES-17 GRB (GOES Rebroadcast) service with an “interleave” of GOES-18 ABI data (replacing the GOES-17 ABI data) and GOES-17 GLM and space weather data. See slide #8 in this hyperlink for the key to GRB Spacecraft IDs and Metadata: https://www.ospo.noaa.gov/Operations/GOES/documents/GOES-18%20T2O%20Schedule%2020220927.pdf
In order to ensure continuity of GOES-West ABI operations, GRB users are advised to ensure their end-processing will accept a different ABI platform ID (G18 rather than G17) and instrument ID (FM3 rather than FM2). More information on global attributes is available in the Product User’s Guide (PUG) Volume 4 for GRB: https://www.goes-r.gov/users/docs/PUG-GRB-vol4.pdf
The GOES-West data content of each product distribution service (e.g., GRB, AWIPS, PDA, CLASS, NODD, HRIT, GNC-A, etc.) during interleave period is listed on slide #7 here: https://www.ospo.noaa.gov/Operations/GOES/documents/GOES-18%20T2O%20Schedule%2020220927.pdf
GOES-18 ABI L1b Radiances and L2 Cloud and Moisture Imagery have achieved Provisional maturity and due to the operational status of interleave, the data are fit for operational use and may be shared without restriction. Once interleave concludes on November 16th, GOES-18 ABI data will not be considered operational as the GOES-18 spacecraft will not have 24x7 support until January 3, 2023.
Note regarding GOES-17 ABI: GOES-17 ABI will be operating continuously until the GOES-West transition from GOES-17 to GOES-18 in January 2023. The GOES-17 ABI data will be available as they normally are through PDA subscriptions. Continuous GOES-17 ABI operations include the Oct-Nov interleave periods when GOES-17 ABI will have multiple focal plane module temperature (FPM) mitigations including the cooling timeline and multiple FPM set points adjustments.
This interleave implementation will proceed regardless of Critical Weather Day declaration.
Contact Information for Further Information: SPSD.UserServices.noaa.gov
Websites for Applicable Information:
https://www.ospo.noaa.gov/Operations/GOES/transition.html
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