Topic: Metop-C HEAP IASI Retrieval degradation

Date/Time Issued: Mar 24, 2026 1646Z

Product or Data Impacted: Metop-C HEAP IASI Temperature/Moisture Profiles and Trace gases (PDA Shortname - HEAP_IASI_EDR)

Date/Time of Expected End: TBD

Length of the Outage/Event:  TBD

Details/Specifics : Metop-C HEAP IASI temperature/moisture and trace gas retrievals have failed quality check potentially due to AMSU-A channel 4 noise level reached to a certain level that the number of good retrievals algorithm can make has significantly dropped. The science team has been contacted. A resolution is yet to be determined.

Metop-C HEAP IASI OLR is not affected.

Contact Information for Further Information and Feedback: 

SPSD User Services (spsd.userservices@noaa.gov) and HEAP Product Area Lead (Shuang.Qiu@noaa.gov) 

This notification was sent to ESPC.Notification@noaa.gov mailing list. If you wish to unsubscribe or subscribe to this list, please contact ESPC Help-Desk at ESPCOperations@noaa.gov with your request. Please note: it may take up to two business days to process your request. For any additional information you can reach ESPC at 301-817-3880 (24x7).