Topic: GOES-18 and GOES-19 ABI Lunar Trending Calibration Scans scheduled from October 31st through November 3rd

Date/Time Issued: October 28, 2025, 1840Z

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

Date/Time of Initial Impact: October 31, 2025 (DOY 304) 16:45:35 UTC

Date/Time of Expected End: November 3, 2025 (DOY 307)  15:25:27 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 October 31 through November 3, 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:

·         10/31/2025 (DOY 304) 16:45:35 UTC & 16:48:35 UTC

·         11/03/2025 (DOY307) 18:46:34 UTC & 19:35:59 UTC

GOES-19:

·         11/01/2025 (DOY 305) 12:42:02 UTC & 13:53:56 UTC

·         11/03/2025 (DOY 307) 14:23:31 UTC & 15:25:27 UTC

This notification was sent to ESPC.Notification@noaa.gov mailing list. If you wish to unsubscribe or subscribe to this list, please contact ESPC Help-Desk at ESPCOperations@noaa.gov with your request. Please note: it may take up to two business days to process your request. For any additional information you can reach ESPC at 301-817-3880 (24x7)