Topic: NOAA-15 AVHRR Scan Motor Current Increase Event
Date/Time Issued: July 23, 2019 1632Z
Product(s) or Data Impacted: AVHRR Products
Date/Time of Initial Impact: July 23, 2019 0435Z
Impacts on Users and Significance: AVHRR products are affected.
Date/Time of Expected End: Unknown
Length of Outage: Ongoing
Details/Specifics of Change: The NOAA-15 AVHRR Scan Motor
current began showing signs of instability at approximately 0400Z
on July 23, 2019. At about 0435Z the current rose sharply to
about 302mA where it has remained. Scan motor temperature began
rising about the same time and is currently steady at ~26M-0C.
Black body temperatures dropped sharply at about the same time.
The instrument appears to no longer be producing data.
This behavior is consistent with a scan motor stall, but requires further investigation. Options for recovery are limited.
Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880 and/or other contacts as necessary
Web Site(s) for applicable information: N/A
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