Topic: NOAA-15 AVHRR degraded image data
Date/Time Issued: Oct 22, 2022 1947Z
Product(s) or Data Impacted: AVHRR Products
Date/Time of Initial Impact: Oct 18, 2022 1800Z
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 on Oct 18 at approximately 1800Z, when the current began to gradually rise from about 205 mA to about
250 mA, where it remained until Oct 24. At about 0000Z on Oct 24, the current began rising again throughout the day, peaking at about 302mA on Oct 25. Scan motor temperature
began rising about the same time and is currently steady at ~29°C. The instrument is still producing data, but it is highly degraded. This behavior may be a sign of an impending 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
This message was sent to ESPC.Notification@noaa.gov
. You have been sent this and other
notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe,
please contact ESPC Help Desk at ESPCOperations@noaa.gov
or (301) 817-3880. Please note:
it make take up to two business days to process your unsubscribe request.