Update #1: IDPS Block 2.3 Maintenance Release Mx 8 Transition to Operations has been postponed to July 11, 2023.

Topic:  JPSS Algorithm Updates in IDPS Block 2.3 Maintenance Release Mx 8 Transition to Operations 

Date/Time Issued:  June 27, 2023 2236

Product(s) or Data Impacted: All JPSS products

Date/Time of Initial Impact: July 5, 2023 TBD

Date/Time of Expected End:  N/A

Length of Outage:  N/A

Details/Specifics of Change: 

The next Interface Data Processing Segment (IDPS) Block 2.3 maintenance release Mx8 (IDPS Mx I2.3.08.00) is scheduled to transition to operations on July 5, 2023. 

Algorithm Updates in IDPS Mx 8 release include:

VIIRS Verified RDR Algorithm Code Change 

• Fixes an issue found by the Community Satellite Processing Package (CSPP) direct-broadcast processing software: a VIIRS RDR processing failure resulted in unflagged bad radiance values that caused false fire detection with the CSPP Active Fire Software

• Improves robustness of the VIIRS RDR to SDR processing in IDPS

• Applies to all missions

VIIRS SDR Excessive Reflectance Values

• Removes “speckles” (single pixels much brighter than the surrounding pixels) in VIIRS Imagery EDR M6 images derived from the VIIRS SDR reflectance products by changing how the radiance substitution for saturated pixels is calculated

• Applies to all missions, but likely most impactful for N21

ATMS Warm and Cold NEDT

• Upgrades the ATMS NEDT (Noise Equivalent Differential Temperature) calculation algorithm to provide more stable scan level NEDT results in ATMS SDR products

• Applies to all missions

OMPS TC code change and OMPS-TC MACROPIX and EV-SAMPLE tables update

• Corrects errors seen in the eastern-most pixel of the N21 OMPS-TC SDR

• Applies to N21 only

CrIS sensor TVAC neon lamp erroneous reading causes data loss

• A preventative update to correct false alarms seen during J3 CrIS TVAC testing

• Algorithm update applies to all missions

N21 ATMS permanent S/W update to correct the H/S alerts

• Fixes erroneous calculation coefficients in the ATMS SDR code that are causing false health status alerts

• The alerts are currently suppressed by a PCT update until the code change is in operations

• False alerts seen in N21 data, algorithm update applies to all missions

Out-of-cycle LUTs/PCTs added to the Mx8 baseline:

• N21 OMPS NP and TC CalConst LUT Update

• ATMS OOC Mounting Matrix PCT Update

• CrIS OOC Mounting Matrix PCT Update

• OMPS OOC Mounting Matrix Coef. Update

• OMPS OOC N21 Pre-launch LUTs

• VIIRS OOC QA-V2 LUT Post-TVAC Update

• N21 ATMS PCT update to suppress instrument H/S QFs

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.  

Any user feedback and questions should be sent to Shuang Qiu at shuang.qiu@noaa.gov

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880, and User Services at SPSD.Userservices@noaa.gov 

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

This message was sent to ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If you wish to unsubscribe please contact the 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.