Topic: Metop-B Out of Plane Maneuver

Date/Time Issued: September 8, 2025 2155Z

Product(s) or Data Impacted: AMSU-A, ASCAT, ATOVS, GOME-2, GRAS, IASI,

MHS, SEM, in the Metop Global Data Service and Regional Data Service.

Date/Time of Initial Impact: September 09, 2025 0808Z (JDAY 252)

Date/Time of Expected End: September 09, 2025 1446Z (JDAY 252)

Length of Outage: 6.5 Hours

Details/Specifics: A Metop-B Out of Plane Maneuver will be performed Sep 9, 2025 (JDAY 252) with preparations starting

at 08:08 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 16:16:17 and 16:17:37 UTC respectively.

Instrument Deactivation Time Normal Operation

AMSU-A1 08:08:39 13:58:05
AMSU-A2 1

HIRS

IASI

MHS

SEM
GOME 11:19:43 14:46:20

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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