Date/Time Issued: February 18, 2020 2020Z

Product(s) or Data Impacted:M-B All S-NPP VIIRS Emissive Bands

Date/Time of Initial Impact: March 10, 2020 0600Z

Date/Time of Expected End:M-BMarch 12, 2020 0400Z

Length of Outage: Approximately 46 hours.

Details/Specifics of change:M-BOn March 10, 2020 at 06:00z, S-NPP VIIRS will perform its annual Emissive Band Calibration affecting all Emissive Band Data. Below is a timeline of the blackbody heating/cooling cycle:

March 10 06:00z - BB to 297.5K

March 10 09:00z - BB to 302.5K

March 10 12:00z - BB to 307.5K

March 10 15:00z - BB to 312.5K

March 10 18:00z - BB to 315K

March 10 21:00z - BB temperature control off

March 11 21:00z - BB temperature control on and set to 272.5K

March 12 00:00z - BB to 282.5K

March 12 03:00z - BB to 292.5K

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880

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

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