Topic: N20 Inclination Adjustment Maneuver (IAM) scheduled for April 28, 2022
Date/Time Issued: April 26, 2022 1956Z z
Product(s) or Data Impacted: All N20 Sensor Data
Date/Time of Initial Impact: April 28, 2022 16:28:09
Date/Time of Expected End: April 28, 2022 18:45:25
Length of Outage: Approximately 2 hours, 17 minutes.
Details/Specifics of Change: On April 28, 2022 at 17:01:09Z, N20 will perform a 163.0 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 April 28, 2022:

- 16:28:09Z – 18:45:25Z CERES in Contam-Safe mode, science data will not be available
- 16:38:09Z – 17:14:25Z OMPS in Decon mode, Science data will not be available
- 16:43:09Z - 17:12:24Z HRD will be off, data for direct broadcast users will be unavailable.
- 16:48:09Z – 17:03:52Z N20 in Control Frame 3 (IAM) (Delta-V Control Frame)
- 16:48:09Z – 17:17:25Z N20 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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