Topic: Anomaly of the GOES-17 Clear Sky Temperature (CSR) and All Sky Temperature (ASR) BUFR Products

Date/Time Issued: Dec 21, 2022 1603 UTC

Product or Data Impacted: CSR/ASR BUFR

Date/Time of Initial Impact: October 31, 2022 1140Z

Date/Time of Expected End: N/A

Length of the Outage/Event: None

Details/Specifics of Change:

The GOES-17 Clear Sky Temperature and All Sky Temperature BUFR data products produced from ABI Channels 7 -16 are set to use a hard-coded Focal Point Temperature (FPT) threshold at 88K in the algorithm. During the cooling period when FPT fluctuates throughout the day with a peak sometime around 14z, any elevated temperatures beyond this limit impacts the generation of CSR/ASR production causing no data or fill values to be present. Setting the threshold to a higher value would produce a degraded CSR/ASR product. This scenario is avoided by using the same limit for all channels. The GOES-18 CSR/ASR will be replacing the GOES-17 CSR/ASR starting from January 4, 2023.

Contact information for further information: ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880 24x7 or goes-r.product.engineering.group@noaa.gov during normal business hours

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

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