Topic: GOES-18 and GOES-19 ABI Lunar Trending Calibration Scans scheduled from  June 22 and June 23, 2026

Date/Time Issued:  June 15, 2026 2051Z

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

Date/Time of Initial Impact: June 22, 2026 (DOY 173) 10:42:15 UTC

Date/Time of Expected End: June 23, 2026 (DOY 174) 16:18:42 UTC

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 June 22 and June 23, 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:

·         06/22/2026 (DOY 173) 15:00:56 UTC & 16:08:07 UTC

·         06/23/2026 (DOY 174) 16:15:42 UTC & 16:18:42 UTC

GOES-19:

·         06/22/2026 (DOY 173) 10:42:15 UTC & 11:56:33 UTC

·         06/23/2026 (DOY 174) 12:00:43 UTC & 12:03:43 UTC