Topic: S-NPP Drag Make-Up (DMU) Maneuver scheduled for December 10, 2020
Date/Time Issued: December 09, 2020 2142 Z
Product(s) or Data Impacted: All S-NPP Sensor Data
Date/Time of Initial Impact: December 10,2020 16:34:00 Z
Date/Time of Expected End: December 10,2020 18:41:04 Z
Length of Outage: See Details.
Details/Specifics of Change: On December 10, 2020 17:00:00Z, S-NPP will perform a 0.8 second propulsive Drag Make-Up (DMU) Maneuver to maintain it's Repeating Ground Track box. Below are the planned event times affecting the observatory, and are subject to be offset by a few seconds.
16:34:00Z – 18:41:04Z - CERES in Contam-Safe mode, science data will not be available
16:44:00Z – 17:11:06Z - OMPS in Decon mode, Science data will not be available
16:55:09Z – 17:18:08Z - HRD will be off, data for direct broadcast users will be unavailable
16:54:00Z – 17:07:04Z - S-NPP pointing off-nadir, collected data during that time period may be impacted and not disseminated
16:54:00Z - SNPP Fixed Frame commanded to Target 10
17:02:04Z - SNPP Fixed Frame commanded to Target 2
Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880
Web Site(s) for applicable information: N/A
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