Topic:  GOES-18 ABI Solar Calibration Scan Scheduled for August 18, 2025

Date/Time Issued:  August 12, 2025 1929Z

Product(s) or Data Impacted:   GOES-18 ABI product outage

Date/Time Initial Impact:  August 18, 2025 1510 UTC

Date/Time of Expected End:   August 18, 2025 1520 UTC

Length of Outage: Approximately 5 minutes at the end of a period of Continuous Full Disk operations

Details/Specifics:

On August 18, 2025, GOES-18 ABI 10-minute Flex Mode (mode 6) will be replaced with 10 minutes of Continuous Full Disk (mode 4) from 1510-1520 UTC. A GOES-18 ABI solar calibration scan will be performed between 1511-1513 UTC, resulting in an outage of all ABI products. ABI 10-minutes Flex Mode (mode 6) will resume at 1520 UTC. The next Full Disk scan will populate at 1520 UTC.

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

Web Site(s) for applicable information:

See https://www.ospo.noaa.gov/Operations/messages.html for this and other satellite related messages.

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