Update #3: Correction for today’s date. The GOES-18 ABI Encoder and FTE Calibrations from 1830 UTC to 1900 UTC and 2000 UTC to 2030 UTC on April 15, 2025.

Update #2: This is the final reminder for the GOES-18 ABI Encoder and FTE Calibrations from 1830 UTC to 1900 UTC and 2000 UTC to 2030 UTC.

Update #1: The G18 ABI Encoder and FTE Calibrations has been postponed until Monday, 04/15, due to CWD.

Topic: GOES-18 (GOES-WEST) ABI Encoder and FTE Calibrations 

Date/Time Issued: April 07, 2025 1840Z

Product(s) or Data Impacted: GOES-18 ABI product outage

Date/Time of Initial Impact: April 15, 2025 1830 UTC

Date/Time of Expected End: April 15, 2025 1900 UTC

Date/Time of Initial Impact: April 15, 2025 2000 UTC

Date/Time of Expected End: April 15, 2025 2030 UTC

Length of Outage:  30 minutes of product outage, about 1 hour of scanning, followed by another 30 minute product outage

Details/Specifics: A GOES-18 ABI Encoder and FTE Calibration will be performed on April 15, 2025, at 18:30 UTC resulting in two ABI product outages. Products may be degraded between outages. 

On Tuesday, April 15, 2025 the following schedule will be employed to support GOES-18 ABI Encoder and FTE Calibrations:

1830 UTC - 1900 UTC: GOES 18 ABI Outage

1900 UTC - Approximately 2000 UTC: GOES-18 Routine ABI Operations Resume with potentially degraded products 

Approximately 2000 UTC - Approximately 2030 UTC: GOES-18 ABI outage

Approximately 2030 UTC: GOES-18 Routine ABI Operations Resume

Please note: If Critical Weather Day (CWD) is declared prior to 1830 UTC the calibration will be postponed.

Web Site(s) for applicable information:

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