Topic: SNPP CrIS Scan Mirror Baffle Temperature Anomaly
Date/Time Issued: May 19, 2023 1530 UTC
Product(s) or Data Impacted: SNPP CrIS SDR products
Date/Time of Initial Impact: May 18 14:04 UTC
Date/Time of Expected End: TBD
Duration: TBD
Details: On May 18, 2023, around 14:04:47 UTC SNPP CrIS experienced a sudden drop in the scan baffle temperature reading. The baffle temperature telemetry value is used in the CrIS radiometric calibration. Science team is working on the impact assessment of the anomaly on the CrIS radiance data quality. Potential solutions are being tested to reduce the impact on the internal calibration target (ICT) radiance used in the calibration of the SNPP observations.
Please use SNPP CrIS Sensor Data Record products with caution until the ongoing investigation is complete and an update can be provided.
Contact Information: For information on the status of this work, please contact Shuang Qiu (Shuang Qiu@noaa.gov) or ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880
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