Topic: Eumetsat Weekly Operations Schedule - Week 17 Issue 3 (Addition of Announcements 9508, 9509, 9510 and 9511)

Date/Time Issued: April 24, 2023 1528Z

Product(s) or Data Impacted: See list below.

Date/Time of Initial Impact: April 24, 2023 1520Z (from the Eumetsat Operation Schedule)

Date/Time of Expected End: See list below.

Details/Specifics of Change: See list below.

Message number:	10498
Message creation:	Mon Apr 24 15:20:41 UTC 2023

Type:	Planned Maintenance
Ann Nr:	9204
Rev:	0
Start Time:	2023-01-31 09:39:00.0
Satellites:	Sentinel-3B
Subsystem:	SRAL
Subject:	instrument-calibration
Impact:	data-degraded
Detail:	Starting 31/01/2023 09:39:49 S3B will start performing SRAL external calibrations over a transponder site in Leonessa. To conduct this transponder pass, the on-board Digital Elevation Model (DEM) altitude value must be temporarily updated in RAM, and is reverted immediately after the pass. A short outage immediately before and after the pass will be introduced, and data should be considered degraded as per non-nominal acquisition mode, for a total duration of approx.27 seconds over the transponder location (42.61607° N, 13.03780° E) for all relative orbits number (RON) 306 - from cycle 75 (inclusive) onwards.
Revision History:
Status:	scheduled
Issue Time:	2023-01-25 17:19:20.0
Services:	SRAL Level 1 Products - S3B SRAL Level 2 Marine Products - S3B

Type:	Planned Maintenance
Ann Nr:	9205
Rev:	0
Start Time:	2023-02-02 10:28:00.0
Satellites:	Sentinel-3B
Subsystem:	SRAL
Subject:	instrument-calibration
Impact:	data-degraded
Detail:	Starting 02/02/2023 10:28:30 S3B will start performing SRAL external calibrations over a corner reflector site in Spain. To conduct this pass, the on-board Digital Elevation Model (DEM) altitude value must be temporarily updated in RAM, and is reverted immediately after the pass. A short outage immediately before and after the pass will be introduced, and data should be considered degraded as per non-nominal acquisition mode, for a total duration of approx.26 seconds over the transponder location (42.052°N, 0.7300° E) for all relative orbits number (RON) 335 - from cycle 75 (inclusive) onwards
Revision History:
Status:	scheduled
Issue Time:	2023-01-25 17:19:08.0
Services:	SRAL Level 1 Products - S3B SRAL Level 2 Marine Products - S3B

Type:	Planned Maintenance
Ann Nr:	9258
Rev:	0
Start Time:	2023-02-14 20:35:00.0
Satellites:	Sentinel-3A
Subsystem:	SRAL
Subject:	instrument-calibration
Impact:	data-degraded
Detail:	Starting 14/02/2023 20:35:57 S3A will start performing SRAL external calibrations over a transponder in Leonessa, Italy. To conduct this transponder pass, the on-board Digital Elevation Model (DEM) altitude value must be temporarily updated in RAM, and is reverted immediately after the pass. A short outage immediately before and after the pass will be introduced, and data should be considered degraded as per non-nominal acquisition mode, for a total duration of approx.28 seconds over the transponder location (42.61607° N, 13.03780° E) for all relative orbits number (RON) 270 from cycle 95 (inclusive) onwards
Revision History:
Status:	scheduled
Issue Time:	2023-02-08 09:22:43.0
Services:	SRAL Level 1 Products - S3A SRAL Level 2 Marine Products - S3A

Type:	Service Enhancement
Ann Nr:	9420
Rev:	0
Start Time:	2023-03-20 15:00:00.0
End Time:	2023-09-21 15:00:00.0
Satellites:	MET-9
Subject:	general-announcement
Detail:	From 20/03/2023, the daily Meteosat-9 Upper HRV Window shift time will change from 14:00 UTC to 15:00 UTC to better optimise the illumination for the Spring/Summer season. The 15:00 UTC shift time will remain in place until 21 September 2023 included.
Revision History:
Status:	scheduled
Issue Time:	2023-03-17 08:52:52.0
Services:	IODC Meteosat Meteorological Products IODC SEVIRI Level 1.5 Image Data

Type:	Service Enhancement
Ann Nr:	9447
Rev:	0
Start Time:	2023-04-12 09:00:00.0
Subject:	service-change
Detail:	Data access from the Data Centre is being migrated to the Data Store, for easier and faster access. For full details, see the URL provided below.
Revision History:
Url:	https://www.eumetsat.int/transition-data-centre-data-store
Issue Time:	2023-03-29 13:44:49.0
Services:	EUMETSAT Data Centre

Type:	Planned Maintenance
Ann Nr:	9481
Rev:	0
Start Time:	2023-04-19 09:54:00.0
End Time:	2023-04-24 15:52:00.0
Satellites:	NOAA-19
Subject:	ground-segment-maintenance
Impact:	data-unavailable
Detail:	Due to maintenance, there will be no support for NOAA-19 from the EUMETSAT Svalbard Ground Station. Therefore NOAA-19 data for the listed orbits will not be acquired at Svalbard and will be unavailable on EUMETCast.
Revision History:
Orbits:	73165,73166,73179,73180,73193,73194,73207,73208,73211,73236,73239
Status:	scheduled
Issue Time:	2023-04-12 14:50:53.0
Services:	MHS Level 1 - NOAA AVHRR Level 1 - NOAA AMSU-A Level 1 - NOAA ATOVS Sounding products - NOAA HIRS Level 1 - NOAA

Type:	Planned Maintenance
Ann Nr:	9495
Rev:	0
Start Time:	2023-04-24 07:00:00.0
End Time:	2023-04-25 16:00:00.0
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	EARS Main Servers Relocation Activities. There is a risk of interruption to all EARS services in the following periods: 24-Apr-2023 07:00-16:00 UTC and 25-Apr-2023 07:00-16:00 UTC.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:36:27.0
Services:	EARS-AVHRR EARS-ATOVS EARS-MWRI EARS-ASCAT EARS-NWC EARS-IASI EARS-ATMS EARS-CrlS EARS-VIIRS EARS-VASS EARS-MERSI

Type:	Planned Maintenance
Ann Nr:	9491
Rev:	0
Start Time:	2023-04-24 14:22:00.0
End Time:	2023-04-24 14:28:00.0
Satellites:	Metop-B
Subsystem:	ASCAT
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	ASCAT Gain Compression. Interruptions scheduled at provided times.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:05:04.0
Services:	ASCAT Level 1 - Metop-B ASCAT Soil Moisture - Metop-B EARS-ASCAT ASCAT AHRPT Metop-B

Type:	Planned Maintenance
Ann Nr:	9502
Rev:	0
Start Time:	2023-04-24 19:10:00.0
End Time:	2023-04-28 03:30:00.0
Satellites:	Metop-B
Subject:	ground-segment-maintenance
Impact:	risk-of-delay
Detail:	McMurdo Maintenance. The enhanced timeliness achieved for Metop-B data through the Antarctic Data Acquisition (ADA) system may be interrupted. Therefore only nominal Arctic timeliness may be available during the following maintenance periods: on 24-Apr-2023: 19:10-20:10UTC, 20:45-21:45UTC and 22:30-23:30UTC; on 25-Apr-2023: 18:45-22:30UTC; on 26-Apr-2023: 20:10-21:10UTC, 21:45-22:45UTC and 23:30-00:00UTC; on 27-Apr-2023: 00:01-00:30UTC, 19:45-20:45UTC and 21:30-22:30UTC; on 28-Apr-2023: 02:30-03:30UTC.
Revision History:
Status:	scheduled
Issue Time:	2023-04-21 13:09:59.0
Services:	SEM L0 - Metop-B AVHRR Level 1 - Metop-B AMSU-A Level 1 - Metop-B MHS Level 1 - Metop-B HIRS Level 1 - Metop-B IASI Level 1 - Metop-B IASI Sounding Products - Metop-B GOME-2 Level 1 - Metop-B GRAS Level 1 - Metop-B ASCAT Level 1 - Metop-B ASCAT Soil Moisture - Metop-B AVHRR Polar Winds - Metop-B Multi-Sensor Products - Metop-B Multi-Metop Wind Products

Type:	Planned Maintenance
Ann Nr:	9498
Rev:	0
Start Time:	2023-04-25 05:13:00.0
End Time:	2023-04-25 05:14:00.0
Satellites:	MET-9
Subject:	in-plane-manoeuvre
Impact:	data-degraded
Detail:	East-West Station Keeping Manoeuvre. Users may experience degraded image quality and degraded meteorological product quality up to a few hours after the manoeuvre.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:57:37.0
Services:	IODC Meteosat Meteorological Products IODC SEVIRI Level 1.5 Image Data

Type:	Planned Maintenance
Ann Nr:	9492
Rev:	0
Start Time:	2023-04-25 08:45:00.0
End Time:	2023-04-25 09:52:00.0
Satellites:	Metop-B
Subsystem:	SEM
Component:	MEPED
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	SEM MEPED in flight calibration.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:05:58.0
Services:	SEM L0 - Metop-B SEM AHRPT Metop-B

Type:	Service Enhancement
Ann Nr:	9212
Rev:	0
Start Time:	2023-04-25 09:00:00.0
End Time:	2023-04-25 09:00:00.0
Subject:	product-change
Detail:	Upgrade of OSI SAF NRT L2 and L3 Sea Ice Concentration products. For full details, see the URL provided below.
Revision History:
Url:	https://www.eumetsat.int/upgrade-osi-saf-sea-ice-concentration-products
Issue Time:	2023-01-25 15:28:25.0
Services:	OSI SAF - Products

Type:	Planned Maintenance
Ann Nr:	9499
Rev:	0
Start Time:	2023-04-25 09:00:00.0
End Time:	2023-04-27 09:00:00.0
Satellites:	MET-11
Subject:	monthly-RSS-interruption
Impact:	data-unavailable
Detail:	Monthly interruption. Meteosat-11 Rapid Scanning Service (RSS) will be suspended for scheduled Full Earth Scanning and Ground Segment Maintenance.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:59:03.0
Services:	RSS SEVIRI Level 1.5 Image Data RSS Meteosat Meteorological Products

Type:	Planned Maintenance
Ann Nr:	9489
Rev:	0
Start Time:	2023-04-25 09:04:00.0
End Time:	2023-04-25 09:06:00.0
Satellites:	Sentinel-3A
Subsystem:	OLCI
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 09:31:52.0
Services:	OLCI Level 2 Marine Products - S3A OLCI Level 1 Products - S3A

Type:	Planned Maintenance
Ann Nr:	9494
Rev:	0
Start Time:	2023-04-25 09:38:00.0
End Time:	2023-04-25 09:45:00.0
Satellites:	Metop-C
Subsystem:	SEM
Component:	MEPED
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	SEM MEPED in flight calibration.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:10:03.0
Services:	SEM L0 - Metop-C SEM AHRPT Metop-C

Type:	Planned Maintenance
Ann Nr:	9511
Rev:	0
Start Time:	2023-04-25 10:00:00.0
End Time:	2023-04-26 18:00:00.0
Satellites:	NOAA-19
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	Due to NOAA ground segment maintenance, there is a risk of interruptions to NOAA-19 data reception in the following maintenance windows: 25 April between 10:00 and 18:00 UTC, and on 26 April between 10:00 and 18:00 UTC.
Revision History:
Status:	scheduled
Issue Time:	2023-04-24 11:02:18.0
Services:	AVHRR Level 1 - NOAA MHS Level 1 - NOAA AMSU-A Level 1 - NOAA HIRS Level 1 - NOAA ATOVS Sounding products - NOAA

Type:	Planned Maintenance
Ann Nr:	9488
Rev:	0
Start Time:	2023-04-26 07:55:00.0
End Time:	2023-04-26 08:06:00.0
Satellites:	Sentinel-3A
Subject:	in-plane-manoeuvre
Impact:	data-degraded
Detail:	Reduced data quality should be expected for data sensed during this period.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 09:30:19.0
Services:	SLSTR Level 1 Products - S3A SLSTR Level 2 Marine Products - S3A SRAL Level 1 Products - S3A SLSTR Level 2 Atmospheric Products - S3A SRAL Level 2 Marine Products - S3A

Type:	Planned Maintenance
Ann Nr:	9496
Rev:	0
Start Time:	2023-04-26 11:14:00.0
End Time:	2023-04-26 12:06:00.0
Satellites:	Metop-C
Subsystem:	IASI
Subject:	instrument-maintenance
Impact:	data-unavailable
Detail:	Instrument maintenance to clear heater line anomaly, including mode transition to standby.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:39:18.0
Services:	IASI Sounding products- Metop-C IASI Level 1 - Metop-C

Type:	Service Enhancement
Ann Nr:	9514
Rev:	0
Start Time:	2023-04-27 09:00:00.0
End Time:	2023-04-27 09:00:00.0
Subject:	product-change
Detail:	New Sentinel-3A and -3B OLCI processing update. For full details, see the URL provided below.
Revision History:
Url:	https://www.eumetsat.int/new-sentinel-3a-and-3b-olci-processing
Issue Time:	2023-04-24 14:59:46.0
Services:	OLCI Level 1 Products - S3A OLCI Level 2 Marine Products - S3A OLCI Level 1 Products - S3B OLCI Level 2 Marine Products - S3B

Type:	Planned Maintenance
Ann Nr:	9510
Rev:	0
Start Time:	2023-04-27 12:00:00.0
End Time:	2023-04-27 16:00:00.0
Satellites:	GOES-16,GOES-18
Subject:	ground-segment-maintenance
Impact:	data-unavailable
Detail:	Due to ground segment database maintenance at NOAA's Product Distribution and Access (PDA) System there will be a 4-hour outage of all GOES-EAST and GOES-WEST ABI, GLM, and Space Weather products on April 27, 2023, starting at 1200 UTC.
Revision History:
Status:	scheduled
Issue Time:	2023-04-24 10:25:20.0
Services:	GOES Products

Type:	Planned Maintenance
Ann Nr:	9497
Rev:	1
Start Time:	2023-04-27 14:00:00.0
End Time:	2023-05-01 00:00:00.0
Satellites:	Metop-B
Subject:	ground-segment-maintenance
Impact:	data-unavailable
Detail:	McMurdo maintenance. The enhanced timeliness achieved for Metop-B data through the Antarctic Data Acquisition (ADA) system will be interrupted. Therefore only nominal Arctic timeliness will be available on 27-Apri-2023 between 14:00 UTC and 15:30 UTC. Risk of data degradation is to be expected during the whole maintenance period provided.
Revision History:
Status:	scheduled
Issue Time:	2023-04-20 14:54:01.0
Services:	SEM L0 - Metop-B AVHRR Level 1 - Metop-B MHS Level 1 - Metop-B HIRS Level 1 - Metop-B AMSU-A Level 1 - Metop-B ASCAT Level 1 - Metop-B IASI Level 1 - Metop-B GRAS Level 1 - Metop-B IASI Sounding Products - Metop-B GOME-2 Level 1 - Metop-B ATOVS Sounding products - Metop-B ASCAT Soil Moisture - Metop-B AVHRR Polar Winds - Metop-B Multi-Sensor Products - Metop-B

Type:	Planned Maintenance
Ann Nr:	9493
Rev:	0
Start Time:	2023-04-28 19:15:00.0
End Time:	2023-04-28 20:14:00.0
Satellites:	Metop-C
Subsystem:	GOME-2
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	GOME2 monthly measurements of GOME-2 polarisation (PMD) data in raw readout mode (PMDRAW). The AC SAF Near Real Time Total Column products (Total Column Ozone, the Total Column NO2, and the Tropospheric NO2) will be unavailable.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:06:28.0
Services:	GOME-2 Level 1 - Metop-C GOME-2 AHRPT Metop-C AC SAF - Products

Type:	Planned Maintenance
Ann Nr:	9490
Rev:	0
Start Time:	2023-04-28 19:44:00.0
End Time:	2023-04-28 20:43:00.0
Satellites:	Metop-B
Subsystem:	GOME-2
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	GOME2 monthly measurements of GOME-2 polarisation (PMD) data in raw readout mode (PMDRAW). The AC SAF Near Real Time Total Column products (Total Column Ozone, the Total Column NO2, and the Tropospheric NO2) will be unavailable.
Revision History:
Status:	scheduled
Issue Time:	2023-04-19 14:04:15.0
Services:	AC SAF - Products GOME-2 Level 1 - Metop-B

Type:	Planned Maintenance
Ann Nr:	9509
Rev:	0
Start Time:	2023-04-29 15:10:00.0
End Time:	2023-04-29 15:20:00.0
Satellites:	GOES-18
Subject:	instrument-calibration
Detail:	A GOES-18 ABI solar calibration scan is planned on 29 April 2023. Between 15:10 and 15:15 UTC GOES-18 ABI will operate in Continuous Full Disk Mode (mode 4) instead of 10-minute Flex Mode (mode 6). Filenames will change to reflect the mode 4 operations, e.g.: OR_ABI-L1b-RadF-M4C01_G18_s20231191510[SSS]_e20231191515[SSS]_c202311915[mmssSSS]-136002_0.nc. ABI 10-minute Flex Mode (Mode 6) will resume at 15:20 UTC.
Revision History:
Status:	scheduled
Issue Time:	2023-04-24 10:07:54.0
Services:	GOES Products

Type:	Planned Maintenance
Ann Nr:	9508
Rev:	0
Start Time:	2023-04-29 19:00:00.0
End Time:	2023-04-29 19:10:00.0
Satellites:	GOES-18
Subject:	instrument-calibration
Detail:	A GOES-18 ABI routine desert monitoring calibration scan is planned on 29 April 2023 from 19:00 UTC to 19:05 UTC. Between 19:05 UTC and 19:10 UTC GOES-18 ABI will operate in Continuous Full Disk Mode (mode 4) instead of 10-minute Flex Mode (mode 6). Filenames will change to reflect the mode 4 operations, e.g.: OR_ABI-L1b-RadF-M4C01_G18_s20231191905[SSS]_e20231191910[SSS]_c202311919[mmssSSS]-136002_0.nc. ABI 10-minute Flex Mode (Mode 6) will resume at 19:10 UTC
Revision History:
Status:	scheduled
Issue Time:	2023-04-24 10:05:04.0
Services:	GOES Products

Type:	Service Enhancement
Ann Nr:	9515
Rev:	0
Start Time:	2023-04-30 23:59:00.0
End Time:	2023-04-30 23:59:00.0
Subject:	general-announcement
Detail:	ESA has announced that nominal Aeolus mission operations will end on 30 April 2023, at 23:59 UTC. The Aeolus Level 2B Winds will, therefore, stop being distributed on this same date. For more details, see the URL provided below.
Revision History:
Url:	https://www.eumetsat.int/end-nominal-aeolus-mission-operations
Issue Time:	2023-04-24 15:06:18.0
Services:	Aeolus Level 2 Products

Type:	Planned Maintenance
Ann Nr:	9462
Rev:	0
Start Time:	2023-05-04 09:00:00.0
End Time:	2023-05-04 09:00:00.0
Satellites:	Metop-C
Subsystem:	GRAS
Subject:	general-announcement
Impact:	data-unavailable
Detail:	GRAS receiver software update. More accurate times will be provided closer to the start of the activity.
Revision History:
Status:	scheduled
Issue Time:	2023-04-05 13:43:08.0
Services:	GRAS Level 1 - Metop-C

Type:	Service Enhancement
Ann Nr:	9214
Rev:	3
Start Time:	2023-05-17 13:30:00.0
End Time:	2023-05-17 14:30:00.0
Subject:	general-announcement
Detail:	Date and time of the session updated.
Revision History:	[Original] Online short session on EUMETSAT's data access services, focusing on how to use the Data Tailor to customise Sentinel-3 products. For more details and to register for the session, see the URL provided below. [Rev.1] Date and time of the session updated. [Rev.2] Date and time of the session updated.
Url:	https://www.eumetsat.int/data-access-services-customise-sentinel-3-products-data-tailor
Issue Time:	2023-04-24 15:10:07.0
Services:

Name:	EUMETSAT
Address:	Eumetsat-Allee 1 D-64295 Darmstadt Germany
Telephone:	+49 6151 807 3660/3770
Fax:	+49 6151 807 3790
E-mail:	ops@eumetsat.int
Internet:	www.eumetsat.int

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