Topic: Metop-C Collision Avoidance in-plane Maneuver

Date/Time Issued: November 21, 2022 2045 UTC

Product(s) or Data Impacted: All products from AMSU-A, ASCAT, ATOVS, GRAS, IASI, MHS, AVHRR in the Metop Global Data Service and Regional Data Service will be temporarily degraded.

GOME-2 and SEM products will not be available.

Date/Time of Initial Impact: Nov 21, 2022 (JDAY 325) TBD UTC

Date/Time of Expected End: Nov 21, 2022 (JDAY 325) TBD UTC

Length of Outage: TBD

Details/Specifics of Change:

A Metop-C Collision Avoidance Maneuver will be performed Nov 21, 2022, preheating beginning at 16:30 UTC with the maneuver ending at 18:31 UTC that same day.
This maneuver is to avoid collision with UNKNOWN (object number 81586). The SEM instrument will be placed into Maneuver Mode at TBD on Nov 21, 2022 and returned back to
its Normal Operating Mode at TBD that same day. The GOME instrument timeline ends at TBD UTC and mirror parked before the burn on Nov 21, 2022.
The GOME timeline is reactivated at TBD UTC that same day. Instrument off/on TBD times will be provided by NOAA when received from EUMETSAT.
Data from the outage period will not be recovered nor distributed.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880

Web Site(s) for applicable information:

See https://www.ospo.noaa.gov/Operations/messages.html for this and other satellite related messages.

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