Turn off Metop-C AMSU-A Ch 8

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This should have been done ages ago given this announcement:

Trusted NESDIS NSOF Sender - NOAA Service Account  (sent by espcoperations@noaa.gov) | Trusted NESDIS NSOF Sender - NOAA Service Account  (sent by espcoperations@noaa.gov) | Fri, Jan 12, 2024, 12:59 PM |   |   -- | -- | -- | -- | -- Trusted NESDIS NSOF Sender - NOAA Service Account  (sent by espcoperations@noaa.gov) to espc.notification | to espc.notification to espc.notification

Topic: Metop-C AMSU Channel 8 retrieval problem

Date/Time Issued: January 12, 2024 1759Z
 
Product(s) or Data Impacted: Metop-C MIRS and HEAP products
 
Date/Time of Initial Impact: January 7, 2024 1200Z
 
Date/Time of Expected End: January 12, 2024 1500Z
 
Length of Event: 5 days
 
Details/Specifics of Change: The noise level in Metop-C AMSU channel 8 (55.5 GHz
HPol) has been increasing since about January 7 and has been steadily worsening. As
of January 12 less than half of the granules are able to pass NOAA’s internal quality
checks. Products dependent in this channel will be seriously degraded. This primarily
impacts products from HEAP and MIRS.
The lower threshold of channel 8 warm counts was adjusted this morning, starting
with orbit M3.D24012.S1305.E1446.B2688788.SV. This is expected to correct the
problem.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880.    

Web Site(s) for applicable information: N/A

This message was sent by ESPC.Notification@noaa.gov. You have been sent this and other
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please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note:
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Trusted NESDIS NSOF Sender - NOAA Service Account (sent by espcoperations@noaa.gov) Fri, Jan 12, 2024, 12:59 PM to espc.notification

Topic: Metop-C AMSU Channel 8 retrieval problem

Date/Time Issued: January 12, 2024 1759Z

Product(s) or Data Impacted: Metop-C MIRS and HEAP products

Date/Time of Initial Impact: January 7, 2024 1200Z

Date/Time of Expected End: January 12, 2024 1500Z

Length of Event: 5 days

Details/Specifics of Change: The noise level in Metop-C AMSU channel 8 (55.5 GHz
HPol) has been increasing since about January 7 and has been steadily worsening. As
of January 12 less than half of the granules are able to pass NOAA’s internal quality
checks. Products dependent in this channel will be seriously degraded. This primarily
impacts products from HEAP and MIRS.
The lower threshold of channel 8 warm counts was adjusted this morning, starting
with orbit M3.D24012.S1305.E1446.B2688788.SV. This is expected to correct the
problem.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880.

Web Site(s) for applicable information: N/A

This message was sent by 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 may take up to two business days to process your unsubscribe request

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I cannot assign reviewers, but I suggest @HaixiaLiu-NOAA , @xyzemc and @JingCheng-NOAA

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Tagging @CatherineThomas-NOAA for awareness