Topic:  NOAA-21 Inclination Adjustment Maneuver (IAM) scheduled for October 30, 2024

Date/Time Issued: October 28, 2024 1858Z

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

Date/Time of Initial Impact: October 30, 2024 1659Z

Date/Time of Expected End: October 30, 2024 1803Z

Length of Outage: See Details

Details/Specifics of Change: On October 30, 2024 at 17:50:00Z, 

NOAA-21 will perform a 94.15 second propulsive Inclination Adjustment Maneuver (IAM)

to maintain Mean Local Time of the Ascending Node while controlling the Repeating Ground Track box.

The following observatory systems will be affected on October 30, 2024:

17:29:45Z – 18:00:25Z  OMPS in Decon mode, Science data will not be available

17:39:46Z – 18:07:23Z  HRD will be off, data for direct broadcast users will be unavailable

17:39:53Z – 18:02:23Z  NOAA-21 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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