Topic: Metop-A Collision Avoidance In-Plane Maneuver

Date/Time (UTC) Message Issued: December 17, 2020 2013Z

Product(s) Involved/Affected:

All products from AMSU-A, ASCAT, ATOVS, GRAS, IASI, MHS, AVHRR in the Metop Global Data Service and Regional Data Service were temporarily degraded. GOME-2 and SEM products were not available.

Date/Time (UTC) Initial Implementation: December 17, 2020 (JDAY 352) 1008Z

Date/Time (UTC) Expected End: December 17, 2020 (JDAY 352) 1513Z

Length of Outage: 5 hours

Details/Specifics of Change:

A Metop-A Collision Avoidance In-Plane Maneuver was performed Dec 17, 2020, preheating beginning at 11:46 UTC with the maneuver ending at 13:17 UTC that same day.

This maneuver was to avoid collision with Fengyun 1C debris (object number 30141)

The SEM instrument was placed into Maneuver Mode at 10:08 UTC on Dec 17, 2020 and returned back to its Normal Operating Mode at 15:13 UTC that same day.

The GOME instrument timeline ends and mirror parked before the burn at 12:21 UTC on Dec 17, 2020. The GOME timeline was reactivated at 14:11 UTC that same day.

Data from the outage period will not be recovered nor distributed.

Contact Information for Further Information:

ESPC Help Desk at ESPCOperations@noaa.gov at 301-817-3880

Web Site(s) for Applicable Information:

See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages.
See http://www.eumetsat.int/website/home/Satellites/CurrentSatellites/Metop/index.html for more information Metop satellites