Topic: Weekly Operations Schedule - Week 50 Issue 3 (Announcements: Addition of 7661 to 7663)

Date/Time Issued: December 10, 2021 1422Z

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

Date/Time of Initial Impact: December 10, 2021 1413Z (from the Eumetsat Weekly Operations Schedule message)

Date/Time of Expected End: See table in detail for on and off switch time

Length of Outage: N/A

Message number:	8548
Message creation:	Fri Dec 10 14:13:06 UTC 2021

Type:	Planned Maintenance
Ann Nr:	7582
Rev:	1
Start Time:	2021-12-07 00:00:00.0
End Time:	2022-01-31 00:00:00.0
Satellites:	Metop-C
Subsystem:	ASCAT
Impact:	risk-of-interruption
Detail:	Calibrations to support transponder test.. Short outages of the ASCAT GDS Level 1, soil moisture and global and regional winds products can be expected, during satellite passes over Turkey.
Status:	scheduled
Issue Time:	2021-11-17 14:58:54.0
Services:	ASCAT Soil Moisture - Metop-C ASCAT Level 1 - Metop-C

Type:	Service Enhancement
Ann Nr:	7633
Rev:	1
Start Time:	2021-12-09 13:18:00.0
Subject:	service-change
Detail:	Change of Sentinel-3A SRAL Acquisition Mode over Antarctica glaciers: From 09/12/2021 at approx. 13:18:34 UTC, during Cycle 79, Relative Orbit Number (RON) 266, Sentinel-3A will start acquiring data in open-loop mode over specified glacier locations in Antarctica. For full details, see the URL provided below.
Url:	https://www.eumetsat.int/change-sentinel-3a-sral-acquisition-mode-over-antarctica-glaciers
Status:	scheduled
Issue Time:	2021-12-07 16:39:14.0
Services:	SRAL Level 1 Products - S3A

Type:	Planned Maintenance
Ann Nr:	7651
Rev:	1
Start Time:	2021-12-12 16:38:00.0
End Time:	2021-12-12 16:39:00.0
Satellites:	Sentinel-6A
Subsystem:	POS-4
Subject:	instrument-maintenance
Impact:	risk-of-interruption
Detail:	Instrument Calibration Activity between 16:38:09 and 16:38:31
Status:	scheduled
Issue Time:	2021-12-09 10:29:57.0
Services:	NRT Altimetry HR L2 Products - S6A

Type:	Planned Maintenance
Ann Nr:	7656
Rev:	1
Start Time:	2021-12-13 08:00:00.0
End Time:	2021-12-13 10:00:00.0
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	EARS Maspalomas Station MEOS server Upgrade.There may be disruption to the listed EUMETSAT based services.
Status:	scheduled
Issue Time:	2021-12-09 14:32:05.0
Services:	EARS-ATOVS EARS-MWRI EARS-AVHRR EARS-ASCAT EARS-IASI EARS-ATMS EARS-CrlS EARS-VIIRS EARS-NWC EARS-VASS EARS-MERSI

Type:	Planned Maintenance
Ann Nr:	7662
Rev:	1
Start Time:	2021-12-13 08:00:00.0
End Time:	2021-12-13 14:00:00.0
Subject:	ground-segment-maintenance
Impact:	service-unavailable
Detail:	Planned maintenance activity on the Data Services infrastructure, affecting Data Store, Data Tailor and EUMETView. Services may be unavailable during the maintenance period.
Status:	scheduled
Issue Time:	2021-12-10 13:51:45.0
Services:	Data Store and Data Tailor Web Service EUMETView

Type:	Planned Maintenance
Ann Nr:	7643
Rev:	1
Start Time:	2021-12-13 14:58:00.0
End Time:	2021-12-13 15:04:00.0
Satellites:	Metop-C
Subsystem:	ASCAT
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	Gain Compression
Status:	scheduled
Issue Time:	2021-12-08 14:43:49.0
Services:	ASCAT Soil Moisture - Metop-C ASCAT Level 1 - Metop-C EARS-ASCAT ASCAT AHRPT Metop-C OSI SAF - Products

Type:	Planned Maintenance
Ann Nr:	7649
Rev:	1
Start Time:	2021-12-14 01:00:00.0
End Time:	2021-12-17 04:30:00.0
Satellites:	Metop-B
Subject:	ground-segment-maintenance
Impact:	data-delayed
Detail:	McMurdo Maintenance. The enhanced timeliness achieved for Metop-B data through the Antarctic Data Acquisition (ADA) system might be interrupted. Therefore only nominal Arctic timeliness might be available during the maintenance periods. The risk period is daily between 01:00 and 04:30 UTC.
Status:	scheduled
Issue Time:	2021-12-08 16:12:15.0
Services:	SEM L0 - Metop-B AVHRR Level 1 - Metop-B AMSU-A Level 1 - Metop-B HIRS Level 1 - Metop-B MHS Level 1 - Metop-B ASCAT Level 1 - Metop-B IASI Level 1 - Metop-B GRAS Level 1 - Metop-B GOME-2 Level 1 - Metop-B ATOVS Sounding products - Metop-B IASI Sounding Products - 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:	7645
Rev:	1
Start Time:	2021-12-14 02:11:00.0
End Time:	2021-12-14 02:33:00.0
Satellites:	MET-11
Subject:	out-of-plane-manoeuvre
Impact:	data-degraded
Detail:	North-South Station Keeping Manoeuvre Burn 1. Users may experience degraded image quality and degraded meteorological product quality up to a few hours after the manoeuvre.
Status:	scheduled
Issue Time:	2021-12-09 16:01:25.0
Services:	0° SEVIRI Level 1.5 Image Data 0° Meteosat Meteorological Products

Type:	Planned Maintenance
Ann Nr:	7663
Rev:	1
Start Time:	2021-12-14 08:00:00.0
End Time:	2021-12-14 12:00:00.0
Subject:	ground-segment-maintenance
Impact:	service-unavailable
Detail:	Planned maintenance activity on the EUMETView infrastructure. Users may experience delays when accessing data during that period.
Status:	scheduled
Issue Time:	2021-12-10 14:03:06.0
Services:	EUMETView

Type:	Planned Maintenance
Ann Nr:	7657
Rev:	1
Start Time:	2021-12-14 08:00:00.0
End Time:	2021-12-14 14:00:00.0
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	EARS Athens, Svalbard and Kangerlussuaq Stations MEOS server Upgrade.There may be disruption to the listed EUMETSAT based services.
Status:	scheduled
Issue Time:	2021-12-09 14:36:19.0
Services:	EARS-ATOVS EARS-AVHRR EARS-MWRI EARS-ASCAT EARS-IASI EARS-CrlS EARS-VIIRS EARS-ATMS EARS-VASS EARS-NWC EARS-MERSI

Type:	Planned Maintenance
Ann Nr:	7639
Rev:	1
Start Time:	2021-12-14 08:28:00.0
End Time:	2021-12-14 08:35:00.0
Satellites:	Metop-B
Subsystem:	SEM
Component:	MEPED
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	SEM MEPED in flight calibration.
Status:	scheduled
Issue Time:	2021-12-08 14:38:58.0
Services:	SEM L0 - Metop-B SEM AHRPT Metop-B

Type:	Service Enhancement
Ann Nr:	7622
Rev:	1
Start Time:	2021-12-14 09:00:00.0
End Time:	2021-12-14 09:00:00.0
Subject:	product-change
Detail:	Release of a new Sentinel-3 Altimetry Processing Baseline (PB): PB 2.79-MARINE. This new PB introduces several changes and improvements to the Sentinel-3 Altimetry products in terms of scientific content for both L1 and L2 products. For full details, see the URL provided below.
Url:	https://www.eumetsat.int/new-sentinel-3-altimetry-processing-baseline
Status:	scheduled
Issue Time:	2021-12-02 13:52:00.0
Services:	MWR Level 1 Products - S3A SRAL Level 1 Products - S3A SRAL Level 2 Marine Products - S3A SRAL Level 1 Products - S3B SRAL Level 2 Marine Products - S3B MWR Level 1 Products - S3B

Type:	Planned Maintenance
Ann Nr:	7653
Rev:	1
Start Time:	2021-12-14 09:00:00.0
End Time:	2021-12-14 09:00:00.0
Satellites:	Suomi NPP
Subject:	VIIRS Lunar Roll
Impact:	data-unavailable
Detail:	Lunar Calibration.The exact time will be announced closer to the day of the manoeuvre.
Status:	scheduled
Issue Time:	2021-12-09 14:04:39.0
Services:	ATMS Level 1 - JPSS CrIS Level 1 - JPSS VIIRS EDR - JPSS EARS-VIIRS SNPP - JPSS Copernicus data

Type:	Planned Maintenance
Ann Nr:	7654
Rev:	1
Start Time:	2021-12-14 09:00:00.0
End Time:	2021-12-14 09:00:00.0
Satellites:	NOAA-20
Subject:	VIIRS Lunar Roll
Impact:	data-unavailable
Detail:	Lunar Calibration.The exact time will be announced closer to the day of the manoeuvre.
Status:	scheduled
Issue Time:	2021-12-09 14:05:16.0
Services:	ATMS Level 1 - JPSS CrIS Level 1 - JPSS VIIRS EDR - JPSS SNPP - JPSS Copernicus data

Type:	Planned Maintenance
Ann Nr:	7647
Rev:	1
Start Time:	2021-12-14 09:00:00.0
End Time:	2021-12-16 09:00:00.0
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	Ground segment network maintenance. Risk of data transfer interruption for all data flows over the JEUNO link during the maintenance period.
Status:	scheduled
Issue Time:	2021-12-09 13:45:43.0
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 ASCAT Level 1 - Metop-B IASI Level 1 - Metop-B GRAS Level 1 - Metop-B IASI Sounding Products - Metop-B ASCAT Soil Moisture - Metop-B GOME-2 Level 1 - Metop-B ATOVS Sounding products - Metop-B AVHRR Polar Winds - Metop-B Multi-Sensor Products - Metop-B Multi-Metop Wind Products AVHRR Level 1 - NOAA AMSU-A Level 1 - NOAA MHS Level 1 - NOAA HIRS Level 1 - NOAA ATOVS Sounding products - NOAA ATMS Level 1 - Suomi-NPP CrlS Level 1 - Suomi-NPP VIIRS EDR - Suomi-NPP ATMS Level 1 - JPSS CrIS Level 1 - JPSS VIIRS EDR - JPSS

Type:	Planned Maintenance
Ann Nr:	7641
Rev:	1
Start Time:	2021-12-14 09:21:00.0
End Time:	2021-12-14 09:28:00.0
Satellites:	Metop-C
Subsystem:	SEM
Component:	MEPED
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	SEM MEPED in flight calibration.
Status:	scheduled
Issue Time:	2021-12-08 14:42:05.0
Services:	SEM L0 - Metop-C SEM AHRPT Metop-C

Type:	Planned Maintenance
Ann Nr:	7642
Rev:	1
Start Time:	2021-12-14 09:21:00.0
End Time:	2021-12-14 11:04:00.0
Satellites:	Metop-C
Subsystem:	SEM
Component:	TED
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	SEM TED in flight calibration.
Status:	scheduled
Issue Time:	2021-12-08 14:42:51.0
Services:	SEM L0 - Metop-C SEM AHRPT Metop-C

Type:	Planned Maintenance
Ann Nr:	7646
Rev:	1
Start Time:	2021-12-15 02:05:00.0
End Time:	2021-12-15 02:27:00.0
Satellites:	MET-11
Subject:	out-of-plane-manoeuvre
Impact:	data-degraded
Detail:	North-South Station Keeping Manoeuvre Burn 2. Users may experience degraded image quality and degraded meteorological product quality up to a few hours after the manoeuvre.
Status:	scheduled
Issue Time:	2021-12-09 16:01:41.0
Services:	0° SEVIRI Level 1.5 Image Data 0° Meteosat Meteorological Products

Type:	Planned Maintenance
Ann Nr:	7661
Rev:	1
Start Time:	2021-12-15 07:29:00.0
End Time:	2021-12-15 08:04:00.0
Satellites:	Sentinel-3A
Subject:	out-of-plane-manoeuvre
Impact:	data-degraded
Detail:	Reduced data quality should be expected for data sensed during this period.
Status:	scheduled
Issue Time:	2021-12-10 08:29:33.0
Services:	SLSTR Level 1 Products - S3A SLSTR Level 2 Marine Products - S3A SLSTR Level 2 Atmospheric Products - S3A SRAL Level 1 Products - S3A SRAL Level 2 Marine Products - S3A

Type:	Planned Maintenance
Ann Nr:	7658
Rev:	1
Start Time:	2021-12-15 08:00:00.0
End Time:	2021-12-15 14:00:00.0
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	EARS Maspalomas, Athens, Svalbard and Kangerlussuaq Stations MEOS server Upgrade.There may be disruption to the listed EUMETSAT based services
Status:	scheduled
Issue Time:	2021-12-09 14:37:23.0
Services:	EARS-ATOVS EARS-AVHRR EARS-MWRI EARS-ASCAT EARS-IASI EARS-ATMS EARS-CrlS EARS-VIIRS EARS-NWC EARS-VASS EARS-MERSI

Type:	Service Enhancement
Ann Nr:	6269
Rev:	4
Start Time:	2021-12-15 09:00:00.0
End Time:	2021-12-15 09:00:00.0
Subject:	service-change
Detail:	Sentinel-3 OLCI Level-1 Full Resolution Near Real Time data will be removed from EUMETCast Satellite on 29 July 2021. Alternative services to access these data are available. For full details, see the URL provided below. [Rev. 2]: URL updated, following the launch of the new EUMETSAT website on 16 November 2020. [Rev. 3]: The removal of Sentinel-3 OLCI Level-1 Full Resolution Near Real Time data from EUMETCast Satellite, initially planned for 29 July 2021, is being deferred to a later date (likely to be during the last quarter of 2021). This is to allow more time for users to transition to alternative access services. [Rev. 4]: The removal of OLCI Level-1 Full Resolution Near Real Time data from EUMETCast Satellite will take place on 15 December 2021. For more details, see the URL provided below.
Url:	https://www.eumetsat.int/S3-olci-l1-nrt-on-eumetcast-satellite-removed
Status:	scheduled
Issue Time:	2021-09-23 09:13:48.0
Services:	OLCI Level 1 Products - S3A OLCI Level 1 Products - S3B

Type:	Planned Maintenance
Ann Nr:	7587
Rev:	2
Start Time:	2021-12-15 12:24:00.0
End Time:	2021-12-15 12:25:00.0
Satellites:	Metop-C
Subject:	in-plane-manoeuvre
Impact:	data-degraded
Detail:	Routine in-plane manoeuvre. Reduced data quality should be expected for data sensed during this period. The exact burn time will be announced closer to the day of the manoeuvre. [Rev. 2]: Manoeuvre Execution time updated. Burn time: 12:24:33 UTC. Duration: 2.492 seconds.
Status:	scheduled
Issue Time:	2021-12-08 16:04:49.0
Services:	SEM L0 - Metop-C AVHRR Level 1 - Metop-C AMSU-A Level 1 - Metop-C MHS Level 1 - Metop-C ASCAT Level 1 - Metop-C IASI Level 1 - Metop-C GRAS Level 1 - Metop-C GOME-2 Level 1 - Metop-C A-DCS AHRPT Metop-C AMSU-A AHRPT Metop-C ASCAT AHRPT Metop-C AVHRR AHRPT Metop-C GOME-2 AHRPT Metop-C GRAS AHRPT Metop-C HIRS AHRPT Metop-C IASI AHRPT Metop-C MHS AHRPT Metop-C SEM AHRPT Metop-C

Type:	Planned Maintenance
Ann Nr:	7644
Rev:	1
Start Time:	2021-12-15 14:06:00.0
End Time:	2021-12-15 20:56:00.0
Satellites:	Metop-C
Subsystem:	IASI
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	External Calibration. Lunar acquisition. CS2 campaign.
Status:	scheduled
Issue Time:	2021-12-08 14:46:20.0
Services:	IASI Sounding products- Metop-C IASI Level 1 - Metop-C EARS-IASI IASI AHRPT Metop-C OSI SAF - Products

Type:	Planned Maintenance
Ann Nr:	7640
Rev:	1
Start Time:	2021-12-15 14:56:00.0
End Time:	2021-12-15 21:46:00.0
Satellites:	Metop-B
Subsystem:	IASI
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	External Calibration. Lunar acquisition. CS2 campaign.
Status:	scheduled
Issue Time:	2021-12-08 14:41:15.0
Services:	IASI Level 1 - Metop-B IASI Sounding Products - Metop-B EARS-IASI IASI AHRPT Metop-B OSI SAF - Products

Type:	Service Enhancement
Ann Nr:	7648
Rev:	1
Start Time:	2021-12-16 09:00:00.0
End Time:	2021-12-16 09:00:00.0
Subject:	new-product
Detail:	NESDIS IMS (Interactive Multisensor Snow and Ice Mapping System) Daily Northern Hemisphere Snow and Ice Analysis dataset to be available on EUMETCast Terrestrial. For full details, see the URL provided below.
Url:	https://www.eumetsat.int/nesdis-ims-data-eumetcast-soon
Status:	scheduled
Issue Time:	2021-12-08 16:04:08.0
Services:

Type: