TopicMetop-B Out of Plane Maneuver

Date/Time Issued: September 15, 2025 2341Z

Product(s) or Data ImpactedAll 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 16, 2025 0723Z (J/Day 259)

Date/Time of Expected End:  September 16, 2025 1402Z (J/Day 259)

Length of Outage: 6 hour, 39 minutes

Details/Specifics:  A Metop-B Out of Plane Maneuver will be performed Sep 16, 2025 (JDAY 259) with preparations starting at 07:23 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 15:31:06 and 15:32:26 UTC.

Instrument Deactivation
Time
Normal
Operation
AMSU-A1 07:2
3:39
AMSU-A2 07:24:19 13:15:01
HIRS N/A N/A
IASI 07:23:34 13:17:31
MHS 07:25:29 13:07:31
SEM 07:24:59 13:12:31
GOME 10:38:21 14:02:10

Contact Information for Further Information: ESPC Operations: ESPCOperations@noaa.gov or 301-817-3880; GOES Payload Engineering: 301-817-4409

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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