Topic: GOES-18 and GOES-19 ABI Lunar Trending Calibration Scans scheduled from  May 25 and May 26, 2026

Date/Time Issued:  May 19, 2026 1605Z

Product(s) or Data Impacted: GOES-18 and GOES-19 ABI MESO-2 outages

Date/Time of Initial Impact: May 25, 2026 (DOY 145) 11:56:13 UTC

Date/Time of Expected End: May 26, 2026 (DOY 146) 18:02:00 UTC

Length of Outage:  Approximately 2 minutes for each event. See the schedule below.

Details/Specifics:

Several, very short, GOES-18 and GOES-19 routine calibration scans for lunar trending will be performed between  May 25 and May 26, 2026  . This will result in an outage of ABI MESO-2 products for about 2 minutes for each event. ABI MESO-1 will still be available during this time. The schedules are below:

Impacts:

GOES-18:

·         05/25/2026 (DOY 145) 16:12:08 UTC & 17:37:46 UTC

·         05/26/2026 (DOY 146) 17:09:40 UTC & 18:02:08 UTC

GOES-19:  

·         05/25/2026 (DOY 145) 11:56:13 UTC & 13:23:21 UTC

·         05/26/2026 (DOY 146) 12:50:09 UTC & 13:51:38 UTC  

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