Topic: GOES-18 and GOES-19 ABI Lunar Trending Calibration Scans scheduled from September 6th through September 9th

Date/Time Issued: August 29, 2025 1606Z

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

Date/Time of Initial Impact: September 6, 2025 (JDAY 249) 2021Z

Date/Time of Expected End: September 9, 2025 (JDAY 252) 1902Z

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

Details/Specifics of Change:

Several, very short, GOES-18 and GOES-19 routine calibration scans for lunar trending will be performed between September 6th - September  9th, 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:

·       09/06/2025 (DOY 249) 20:21:22 UTC & 20:24:22 UTC

·       09/09/2025 (DOY 252) 22:24:22 UTC & 23:11:40 UTC

GOES-19:

·       09/08/2025 (DOY 251) 16:59:01 UTC & 18:27:50 UTC

·       09/09/2025 (DOY 252) 18:01:25 UTC & 19:02:02 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)