Topic: NPP Drag Make-Up Maneuver (DMU) scheduled for February 02, 2022
Date/Time Issued: February 02, 2022 1517Z
Product(s) or Data Impacted: All S-NPP Sensor Data
Date/Time of Initial Impact: February 02,2022 17:21:00Z
Date/Time of Expected End: February 02,2022 19:28:04Z
Length of Outage: See Details.
Details/Specifics of Change: On February 02, 2022 17:47:00Z,
S-NPP will perform a 2.0 second propulsive Inclination Adjustment Maneuver (IAM)
to maintain Mean Local Time of the Ascending Node while controlling Repeating Ground Track box.
The following observatory systems will be affected on February 02, 2022:
17:21:00Z | – 19:28:04Z CERES in Contam-Safe mode, science data will not be available
17:33:00Z | – 17:58:06Z OMPS in Decon mode, Science data will not be available
17:36:00Z | – 17:59:05Z - HRD will be off, data for direct broadcast users will be unavailable
17:41:00Z | – 17:47:02Z NPP in Control Frame 2 (DMU) (Delta-V Control Frame)
17:41:00Z | – 17:54:04Z 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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