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NOUS72 KNES 221949

ADMNES

TOPIC:  JPSS ALGORITHM UPDATES IN IDPS BLOCK 2.3 MAINTENANCE RELEASE MX10

TRANSITION TO OPERATIONS



DATE/TIME ISSUED:  APRIL 22, 2024 1948 UTC



PRODUCT(S) OR DATA IMPACTED: NOAA-20, NOAA-21 OMPS NP SDR/OMPS NP

STRAYLIGHT PCT



DATE/TIME OF INITIAL IMPACT: MAY 23, 2024 TBD UTC



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 MX10 (IDPS MX I2.3.10.00) IS SCHEDULED TO TRANSITION TO OPERATIONS

ON MAY 23, 2024.



THE RELEASE INCLUDES OMPS NP ALGORITHM CHANGE TO ENHANCE SOLAR INTRUSION

CORRECTION. THE ALGORITHM CHANGE IS ACCOMPANIED WITH A NEW OMPS NP

STRAYLIGHT PCT FORMAT.



THIS DATA FORMAT CHANGE FOR THE OMPS NP STRAYLIGHT LOOK UP TABLE (LUT) IS

FOR ALL THREE SPACECRAFT: S-NPP, NOAA-20 AND NOAA-21. THE NEW LUT WORKS

WITH THE IDPS MX10 ALGORITHM CHANGE FOR VERSION 2022 SOLAR INTRUSION

CORRECTION. ADDITIONALLY, THE NEW LUT HAS AN APPENDED 2448 BYTES ADDED TO

THE LUT FOR IN-BAND STRAYLIGHT (IBSL) CORRECTION.





THE OMPS NP ALGORITHM CHANGE ONLY APPLIES TO NOAA-20 AND NOAA-21.  THE

SOLAR INTRUSION AND CORRECTION IS ONLY IN THE NORTHERN HEMISPHERE WHEN THE

SOLAR ZENITH ANGLE (SZA) IS GREATER THAN 58 DEGREES. THE NOAA-20 AND

NOAA-21 IMPROVED CORRECTION WILL CHANGE THE RADIANCES BY UP TO 1% FOR SZA

LESS THAN 88 DEGREES AND FOR WAVELENGTHS LESS THAN 300 NM.



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.



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.



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