Topic: JPSS Algorithm Updates in IDPS Block 2.3 Maintenance Release Mx 1 Transition to Operations
Date/Time Issued: February 24, 2021 1800 UTC
Product(s) or Data Impacted: S-NPP/NOAA-20 VIIRS SDRs, OMPS SDRs - Improved VIIRS SDR Quality
Date/Time of Initial Impact: March 30, 2021 TBD UTC
Date/Time of Expected End: March 30, 2021 TBD UTC
Length of Outage: TBD
Details/Specifics of Change:
The next Interface Data Processing Segment (IDPS) Block 2.3 maintenance release Mx1 (IDPS Mx I2.3.01.00) is scheduled to transition to operations on March 30, 2021.
Algorithm Updates in IDPS Mx 1 release include:
Correct Ozone Mapping and Profiler Suite (OMPS) Nadir Mapper Dark Count Correction The code change fixes a computation error in the dark count correction for S-NPP and NOAA-20 OMPS Nadir Mapper. SDR and EDR users will see no change because the correction has been made manually during fast track dark count table deliveries since the end of February 2020.
Visible Infrared Imaging Radiometer Suite (VIIRS) Thermal Emissive Band (TEB) Corrections During Moon Intrusions and After Sync Losses
VIIRS SDR TEB calibration algorithm has been updated to improve TEB SDR production during lunar intrusions into the VIIRS Space View (SV). TEB products are now generated when the moon is expected to be in the SV keep-out-box and are no longer replaced with the fill values. The products are still flagged as "poor quality" because of the limited availability of the SV data, but the onboard calibrator data are no longer flagged as missing. Additional calibration corrections were made for the dual-gain bands around the lunar intrusions as well as sync losses and sector rotations. No actions are required by users.
Please note: This release will not occur during a Critical Weather Day (CWD).
The contents of this release are subject to change based on user readiness, customer feedback, and management approval. Additional ESPC notifications may provide further details and updates concerning this release.
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Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880, and User Services at SPSD.Userservices@noaa.gov
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