Update #1: This is a reminder that the JPSS Algorithm Updates in IDPS Block 2.3 Maintenance Release Mx & Transition to Operations begins today at 14:15 UTC

Topic: JPSS Algorithm Updates in IDPS Block 2.3 Maintenance Release Mx 7 Transition to Operations

Date/Time Issued: July 18, 2022 1346 UTC

Product(s) or Data Impacted: OMPS Nadir Mapper(NM) SDR (SNPP & NOAA-20), CrIS Full Spectral(FS) SDR (SNPP & NOAA-20)

Date/Time of Initial Impact: July 18, 2022 14:15 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 Mx7 (IDPS Mx I2.3.07.00) is scheduled to transition to operations on July 18, 2022.

Algorithm Updates in IDPS Mx 7 release include:

OMPS Nadir Mapper Geolocation Code Change for Off-nadir Geolocation Error Correction:

No impacts on the OMPS NM SDR data format except for an improved geolocation quality for off-nadir OMPS(SNPP and NOAA-20) NM pixels

CrIS FS SDR Calibration Coefficient Table RangeMin and RangeMax values Update(SNPP & NOAA-20):

Field Name | Change From | Change To
Range Min/Max | Comment | Range Min/Max | Comment
forwardSweepDirectionLabel | F | For Forward 1 dimensional array BOTH DIRECTIONS Size of Dimensions : 2 | 0-127 | Numeric value for ASCII char 'F' 1 Dimensional Array: SWEEP_DIR_LABEL_LEN Size of Dimension(s): 2
lwBandLabel | LW | ‘LW’ 1 dimensional array CRIS_TOTAL_BANDS Size of Dimensions : 3 | 0-127 | Numeric value for ASCII char 'LW' 1 Dimensional Array: BAND_LABEL_LEN Size of Dimension(s): 3
mwBandLabel | MW | ‘MW’ 1 dimensional array CRIS_TOTAL_BANDS Size of Dimensions : 3 | 0-127 | Numeric value for ASCII char 'MW' 1 Dimensional Array: BAND_LABEL_LEN Size of Dimension(s): 3
reverseSweepDirectionLabel | R | For Reverse 1 dimensional array BOTH DIRECTIONS Size of Dimensions : 2 | 0-127 | Numeric value for ASCII char 'R' 1 Dimensional Array: SWEEP_DIR_LABEL_LEN Size of Dimension(s): 2
swBandLabel | SW | ‘SW’ 1 dimensional array CRIS_TOTAL_BANDS Size of Dimensions : 3 | 0-127 | Numeric value for ASCII char 'SW' 1 Dimensional Array: BAND_LABEL_LEN Size of Dimension(s): 3
rotationMatrix | Min_Double/Max_Double |  | Min_Value/Max_Value |

Quality Flag/Data Quality Threshold Table (DQTT) Updates

- VIIRS NCC EDR quality flag will be set when there is SDR saturation AND the DNB does not report Stray Light Correction.

- Enable VIIRS SDR DQTT I1-I2, I4-I5, M1-M5 and M12-M16 Data Quality Notifications (S-NPP and NOAA-20)

- Enable VIIRS Imagery EDR DQTT for NCC Data Quality Notifications (S-NPP and NOAA-20)

- NOAA-20 CrIS Baffle Temp Anomaly: - increase temp swing limit

- Removes degraded data quality false alarms associated with the NOAA-20 CrIS scan baffle temperature anomaly. No change to data quality.

- SNPP CrIS FS SDR DQTT threshold

- This change is already in operations and is added to Mx7 baseline

- Update all DQTT files to remove the “NPP” in the Version ID

Out-of-cycle LUTs/PCTs added to the Mx7 baseline:

- J02 ATMS Mounting Matrix Coefficients (PCT) Pre-launch Data

- J02 CrIS Mounting Matrix Coefficients (PCT) Update Pre-launch Data

- J02 OMPS Mounting Matrix PCT Updates (pre-dynamic)

- Launch Ready VIIRS LUTS for J02

- OMPS J02 Nadir Version LUT Update N_TIM_PAT_VER Value

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

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