Topic: Metop-B Out of Plane Maneuver

Date/Time Issued: September 22, 2025 23:35 UTC

Product(s) or Data Impacted: All products from AMSU-A, ASCAT, ATOVS, GOME-2, GRAS, IASI, MHS, SEM, in the Metop Global Data Service and Regional Data Service, will not be available. The AVHRR GDS Level 1 products and AVHRR regional data from Metop-B will be temporarily degraded.

Date/Time of Initial Impact: September 23, 2025 08:19 UTC (J/Day 266)

Date/Time of Expected End: September 23, 2025 14:59 UTC (J/Day 266)

Length of Outage: 6 hour, 40 minutes

Details/Specifics: A Metop-B Out of Plane Maneuver will be performed Sep 23, 2025 (JDAY 266) with preparations starting at 08:19 UTC. For this maneuver some instruments will not be producing data. The data outage times are listed below. Data from the outage period will not be recovered nor distributed.

The manual selection of optimal TED and MEPED calibrations for the SEM instrument will be performed at 16:27:14 and 16:28:34 UTC respectively.

Instrument Deactivation Time Normal Operation
AMSU-A1 08:19:32 14:08:52
AMSU-A2 08:20:12 14:10:22
HIRS N/A N/A
IASI 0 08:19:27 14:12:52
MHS 08:21:22 14:02:52
SEM 08:20:52 14:07:52
GOME 11:32:45 14:59:22

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

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