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UPDATE #2: IMPACT TIME FOR THE IDPS BLOCK 2.3 MAINTENANCE RELEASE MX10 IS
TODAY, MAY 23, 2024 AT 1520 UTC.

UPDATE #1: NOAA-21 VIIRS THERMAL EMISSIVITY BAND (TEB) CALIBRATION BIAS
CORRECTION IS IMPLEMENTED DURING THE BLACKBODY WARM-UP/COOL-DOWN (WUCD)
EVENTS. THE CALIBRATION DURING NOMINAL OPERATIONS IS NOT CHANGED.
ADDITIONALLY, THIS NOTICE SERVES AS A REMINDER THAT THE UPDATES LISTED
BELOW WILL BE IMPLEMENTED IN OPERATIONS ONE WEEK FROM TODAY VIA THE IDPS
BLOCK 2.3 MAINTENANCE RELEASE MX10.

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

DATE/TIME ISSUED:  MAY 23, 2024 1317 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 1520 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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