Topic: NOAA-18 MHS degraded science data

Date Issued: October 21, 2018 0848Z
Product(s) or Data Impacted: All MHS channels have developed striping
Date/Time of Initial Impact: October 20, 2018 1800Z
Date/Time of End: TBD
Length of Event: TBD
Details/Specifics of Change: At around 1800Z the NOAA-18 reflector drive motor current became irregular causing scan control errors. This resulted in all 5 MHS channels developing channel striping. See the STAR Web site for Global image impact at https://www.star.nesdis.noaa.gov/icvs/status_N18_MHS.php
Problem is being investigated by Engineering.
Contact Information for Further Information: ESPC Help Deskat ESPCOperations@noaa.gov at301-817-3880

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