Topic:  S-NPP Drag Make-Up Maneuver (DMU) Scheduled for October 2, 2024

Date/Time Issued: September 30, 2024 1825Z

Product(s) or Data Impacted:  All S-NPP Sensor Data

Date/Time of Initial Impact: October 02, 2024 1639Z

Date/Time of Expected End: October 02, 2024 1846Z

Length of Outage:  See Details

Details/Specifics of Change: On October 2, 2024 17:05:00Z, S-NPP will perform a 5.0 second propulsive Drag Make-Up Maneuver (DMU) to maintain the Repeating Ground Track box.

The following observatory systems will be affected on October 2, 2024:

16:39:00Z – 18:46:04Z  CERES in Contam-Safe mode, science data will not be available

16:49:00Z – 17:16:06Z OMPS in Decon mode, Science data will not be available

16:54:00Z – 17:17:05Z  HRD will be off, data for direct broadcast users will not be available

16:59:00Z – 17:07:04Z  S-NPP in Control Frame 2 (DMU) (Delta-V Control Frame)

16:59:00Z – 17:12:04Z  S-NPP pointing off-nadir, collected data during that time period may be  impacted and not disseminated

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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