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Topic: *NOAA-19 MHS (Microwave Humidity Sounder) Data Flagging Update * Date/Time Issued*: **August 24, 2009, 2033 UTC*Product(s) or Data Impacted: *NOAA-19 MHS Channels 18- (channel 3) and 19- (channel 4)
* Date/Time of Initial Impact: *August 22, 2009, 1350 UTC* Date/Time of Expected End: *August 24, 2009, 1803 UTC * Length of Event: *48 hours * Impacts on Users and Significance: * Possible major impact * User Actions: *None.*Details/Specifics of Change: *NOAA-19 MHS Channels 18- (channel 3) and 19- (channel 4) data deteriorated rapidly over the last few days. MSPPS and MIRS products were not produced when channel 3 data were rejected because of the data flags. A change was made to stop rejecting the data beginning on August 22 at 1350Z with orbit *NSS.MHSX.NP.D09234.S2319.E0109.B0278586.GC *through August 24 at 1550Z ending with orbit * NSS.GHRR.NP.D09236.S1620.E1751.B0280910.WI. *During this time period MHS data users may have seen bad data in their processing if they were still using channel3 and relying on the reject data flag to control the data flow. At this point nothing can be done in our system to eliminate the data flags and so we returned our processing back to normal. The product area is pursuing efforts to eliminate reliance on channels 3 and 4.
*Contact Information for Further Information: *ESPC Operations Crew Leader at ESPCOperations@xxxxxxxx <mailto:ESPCOperations@xxxxxxxx> and 301-817-3880 *
Web Site(s) for applicable information: (STAR URL: http://www.star.nesdis.noaa.gov/smcd/spb/icvs/satMonitoring_n19_mhsx.php)
** * * -- Vince Tabor NSOF Cube 1404 Phone: 301-817-4552 --
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