Topic: GOES-18 ABI desert monitoring calibration scan

Date/Time Issued: April 20, 2026 1701Z

Product(s) or Data Impacted: GOES-18 ABI outage and mode change

Date/Time of Initial Impact: April 27, 2026 1900Z (DOY 117) 

Date/Time of Expected End:  April 27, 2026 1910Z (DOY 117)

Length of Outage: Approximate 5 minute outage followed by 5 minutes of Continuous Full Disk mode

Details/Specifics of Change:

A GOES-18 ABI routine desert monitoring calibration scan will occur from 1900-1910 UTC on April 27, 2026 following the schedule below:  

ABI calibration scan: 1900-1905 UTC - no ABI products generated or distributed

ABI Continuous Full Disk Mode (mode 4): 1905-1910 UTC

ABI 10-minute Flex Mode (mode 6) resumes: 1910 UTC

Web Site(s) for applicable information:

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