TopicGOES-18 and GOES-19 ABI Lunar Trending Calibration Scans Scheduled from November 30 to December 1, 2025

Date/Time Issued:  November 21, 2025 1615Z

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

Date/Time of Initial Impact: November 30, 2025 (DOY 334) 12:00:57 UTC

Date/Time of Expected End: December 1, 2025 (DOY 307) 17:50:00 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  November 30th and December 1st , 2025, resulting 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:

·       11/30/2025 (DOY 334) 16:20:14 UTC & 17:36:17 UTC

·       12/01/2025 (DOY 335) 17:47:00 UTC & 17:50:00 UTC

GOES-19:

·       11/30/2025 (DOY 334) 12:00:57 UTC & 13:22:00 UTC

·       12/01/2025 (DOY 335) 13:29:37 UTC & 13:33:37 UTC

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