Topic: S-NPP Drag Make-up Maneuver (DMU) 036 scheduled for March 1, 2023


Date/Time Issued: February 28, 2023 1612Z Time


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


Date/Time of Initial Impact: March 1, 2023 1634Z


Date/Time of Expected End: March 1, 2023 1841Z


Length of Outage:  Approximately 2 hours, 7 minutes.


Details/Specifics of Change: On March 1, 2023 at 17:00:00Z, S-NPP will perform a 3.0 second propulsive Drag Make-up Maneuver (DMU) to maintain the Repeating Ground Track box.


The following observatory systems will be affected on March 1, 2023:


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

16:49:00Z – 17:12:05z   HRD will be off, data for direct broadcast users will be unavailable.

16:54:00Z – 17:02:04z   S-NPP in Control Frame 2 (DMU) (Delta-V Control Frame)

16:54:00Z – 17:07:04z   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 at 301-817-3880


Web Site(s) for Applicable Information: N/A

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