Topic: Metop-B Out of Plane Maneuver

Date/Time Issued: September 30, 2025 1800 UTC (0343Z)

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: Sep 30, 2025 (JDAY 273) 07:34 UTC

Date/Time of Expected End: Sep 30, 2025 (JDAY 273) 14:15 UTC

Length of Outage: 6 hour, 30 minutes

Details/Specifics: A Metop-B Out of Plane Maneuver will be performed Sep 30, 2025 (JDAY 273) with preparations starting at 07:34 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 15:42:00 and 15:43:20 UTC respectively.

Instrument Deactivation Time Normal Operation
AMSU-A1 07:34:29 13:24:15
AMSU-A2 07:35:09 13:25:45
HIRS N/A N/A
IASI 07:34:24 13:28:15
MHS 07:36:19 13:18:15
SEM 07:35:49 13:23:15
GOME 10:51:21 14:15:10

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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