Subject: Satellite Outage, MHS ANOMALY, Issued: APRIL 24, 2009 1420 This is a multi-part message in MIME format. --------------070207010903010709000709 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit *Topic:* MHS-19 (Microwave Humidity Sounder) *Date/Time Issued:* April 24, 2009 1420 UTC *Product(s) or Data Impacted:* All Products *Date/Time of Initial Impact:* April 24, 2009 0328 UTC *Date/Time of Expected End:* April 24, 2009 1348 UTC *Length of Event:* 10 hours and 20 minutes *Details/Specifics of Change:* NOAA and EUMETSAT Engineers have completed their analysis. The cause of the MHS entering Fault Mode is due an aburpt increase in the Reflector Drive Motor (RDM) and Flywheel Drive Motor (FDM) currents. The event occurred over the South Atlantic Anomaly region. This anomaly has been seen in both METOP-A and NOAA-18. SOCC engineers will commanded the MHS to nominal at 9:48 EDT/ 1348 UTC). *Contact Information for Further Information:* ESPC Operations Crew Leader at ESPCOperations@noaa.gov and 301-817-3880 or Satellite Analysis Branch Shift Supervisor at SABSupervisor@noaa.gov and 301-763-8444. --------------070207010903010709000709 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Topic: MHS-19  (Microwave Humidity Sounder)

Date/Time Issued:  April  24, 2009   1420 UTC

Product(s) or Data Impacted:  All Products

Date/Time of Initial Impact:  April 24, 2009  0328 UTC

Date/Time of Expected End:  April 24, 2009 1348 UTC

Length of Event:  10 hours and 20 minutes

Details/Specifics of Change:

NOAA and EUMETSAT Engineers have completed their analysis. The cause of the MHS entering Fault Mode
is due  an aburpt increase in the Reflector Drive Motor (RDM) and Flywheel Drive Motor (FDM) currents. 
The event occurred over the South Atlantic Anomaly region.  This anomaly has been seen in both METOP-A
and NOAA-18. SOCC engineers will commanded the MHS to nominal at 9:48 EDT/ 1348 UTC).

Contact Information for Further Information: ESPC Operations Crew Leader at ESPCOperations@noaa.gov
and 301-817-3880 or Satellite Analysis Branch Shift Supervisor at SABSupervisor@noaa.gov and 301-763-8444.


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