Topic: SNPP VIIRSLunarCalibrationScheduled for April 15, 2019

Date/Time Issued:April 12, 2019 1640Z

Product(s) or Data Impacted: VIIRS Sensor Data

Date/Time of Initial Impact: April 15, 2019 1646Z

Date/Time of Expected End:April 15, 2019 1651Z

Length of Outage: See Details.

Details/Specifics of Change: SNPP will perform a VIIRSLunarCalibrationon April 15, 2019 centered at 16:48:39 Z. There is no spacecraft maneuver required for thiscalibration. VIIRS Science data will be impacted during thecalibration. The timeline of events for this activity are provided below.

The following observatory systems will be affected: 16:46:07 ZM-BM-BM-BM-bM-^@M-^SM-B 16:51:11 ZVIIRS encoder offset and gain will be set for Moon observation

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

Web Site(s) for applicable information: See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages.

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