Topic: GOES-16 ABI Lunar Trending Calibration Scans scheduled for April 28-29, 2018

Date/Time Issued: April 24, 2018 2015 UTC

Product(s) or Data Impacted: GOES-16 ABI MESO-2 outages

Date/Time of Initial Impact: April 28, 2018 1517 UTC (event 1) and 1643 UTC (event 2)

April 29, 2018 1618 UTC (event 3) and 1716 UTC (event 4)

Date/Time of Expected End: April 28, 2018 1519 UTC (event 1) and 1645 UTC (event 2)

April 29, 2018 1620 UTC (event 3) and 1718 UTC (event 4)

Length of Outage: Approximately 2 minutes for each event

Details/Specifics of Change:

Four, very short, GOES-16 routine calibration scans for lunar trending will be performed on April 28, 2018, from 1517-1519 UTC (event 1) and 1643-1645 UTC (event 2), and April 29, 2018 from 1618-1620 UTC (event 3) and 1716-1718 UTC (event 4), 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.

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