Topic: NOAA-21 Drag Make-Up Maneuver (DMU) 010 scheduled June 24, 2026

Date/Time Issued: June 22, 2026 1928Z

Product(s) or Data Impacted:  All NOAA-21 Sensor Data

Date/Time of Initial Impact: June 24, 2026 16:14:50Z  (175)

Date/Time of Expected End: June 24, 2026  16:43:34.37Z    (175)

Length of Outage:  See Details.

Details/specifics of Change: On  June 24, 2026 at 16:30:00.00z, NOAA-21 will perform an 8.25-second propulsive Drag Makeup Maneuver (DMU) to maintain the Mean Local Time of the Ascending Node while controlling the Repeating Ground Track box.

The following observatory systems will be affected on June 24, 2026:

16:14:50Z - 16:39:22.00z OMPS in Decon mode, Science data will not be available

16:24:51Z - 16:40:06.00z HRD will be off, data for direct broadcast users will be unavailable

16:24:53Z - 16:43:34.37z NOAA-21 pointing off-nadir, collected data during that time period may be impacted and not disseminated

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