Topic: Weekly Operations Schedule - Week 36 Issue 3 (Announcements: Addition of 9968 and 9969)

Date/Time Issued: September 04, 2023 1600Z

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

Date/Time of Initial Impact: September 04, 2023 1537Z

Date/Time of Expected End: See list below

Details/Specifics of Change:

Message number:	10963
Message creation:	Mon Sep 04 15:37:28 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:	9782
Rev:	3
Start Time:	2023-07-18 09:00:00.0
End Time:	2023-09-06 23:59:00.0
Subject:	general-announcement
Impact:	data-unavailable
Detail:	Event End Time Updated.
Revision History:	[Original] Following the release on EUMETCast of Level-1B NOAA-procured Spire Radio Occultation data processed by EUMETSAT, and L2 product generated by the ROM SAF, on 20 June 2023 (see URL provided below for reference), NOAA will switch from Spire to another data provider, PlanetiQ, on 18 July 2023, corresponding to the start of their next 6-month delivery order. As we need to adapt our processor to the new PlanetiQ data, a gap in the provision of NOAA commercial RO data is to be expected starting 18 July. An announcement will be issued as soon as we have a date for the start of dissemination of the new PlanetiQ data. [Rev.1] ROM SAF will restart providing L2 RO data based on NOAA L1B Commercial Radio Occultation data (this time based on PlanetIQ input) on the 21 August 2023. [Rev.2] Please disregard the previous updated message.
Url:	https://www.eumetsat.int/noaa-procured-radio-occultation-data-eumetcast-soon
Status:	scheduled
Issue Time:	2023-08-31 11:16:50.0
Services:	ROM SAF - Products Commercial Radio Occultation data

Type:	Service Enhancement
Ann Nr:	9846
Rev:	0
Start Time:	2023-07-25 09:00:00.0
Subject:	general-announcement
Detail:	As the public release of the new MTG-I1 data is approaching, with the distribution of pre-operational FCI L1c data currently planned for October 2023, we have released a dedicated web page capturing all users need to know to get ready for accessing and using the data. For full details, see the URL provided below.
Revision History:
Url:	https://www.eumetsat.int/getting-ready-data-first-mtg-missions
Issue Time:	2023-07-26 14:35:41.0
Services:

Type:	Planned Maintenance
Ann Nr:	9838
Rev:	0
Start Time:	2023-08-09 20:15:00.0
End Time:	2023-09-30 23:00:00.0
Satellites:	MET-9
Subject:	eclipse-season
Impact:	risk-of-degradation
Detail:	There is a risk of degraded image quality every night from 20:15 to 23:00 in the given time period.
Revision History:
Status:	scheduled
Issue Time:	2023-07-27 06:46:45.0
Services:	IODC SEVIRI Level 1.5 Image Data IODC Meteosat Meteorological Products

Type:	Planned Maintenance
Ann Nr:	9839
Rev:	0
Start Time:	2023-08-23 23:15:00.0
End Time:	2023-10-12 02:00:00.0
Satellites:	MET-10
Subject:	eclipse-season
Impact:	risk-of-degradation
Detail:	There is a risk of degraded image quality every night from 23:15 to 02:00 next day in the given time period.
Revision History:
Status:	scheduled
Issue Time:	2023-07-27 06:47:05.0
Services:	0° SEVIRI Level 1.5 Image Data 0° Meteosat Meteorological Products

Type:	Planned Maintenance
Ann Nr:	9940
Rev:	0
Start Time:	2023-08-28 09:00:00.0
End Time:	2024-01-01 00:00:00.0
Satellites:	Metop-C
Subsystem:	ASCAT
Subject:	general-announcement
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 Madrid
Revision History:
Status:	scheduled
Issue Time:	2023-08-23 14:57:08.0
Services:	ASCAT Soil Moisture - Metop-C ASCAT Level 1 - Metop-C

Type:	Planned Maintenance
Ann Nr:	9840
Rev:	0
Start Time:	2023-08-28 22:30:00.0
End Time:	2023-10-15 00:00:00.0
Satellites:	MET-11
Subject:	eclipse-season
Impact:	risk-of-degradation
Detail:	There is a risk of degraded image quality every night from 22:30 to 01:30 next day in the given time period.
Revision History:
Status:	scheduled
Issue Time:	2023-07-27 14:26:59.0
Services:	RSS Meteosat Meteorological Products RSS SEVIRI Level 1.5 Image Data

Type:	Planned Maintenance
Ann Nr:	9969
Rev:	0
Start Time:	2023-08-31 04:30:00.0
End Time:	2023-10-16 05:30:00.0
Satellites:	GOES-18
Subject:	eclipse-season
Impact:	data-interrupted
Detail:	GOES East Eclipse season. The 04:30 to 05:30 UTC image data may be unavailable, degraded or incomplete.
Revision History:
Issue Time:	2023-09-04 07:47:43.0
Services:	GOES Products

Type:	Planned Maintenance
Ann Nr:	9968
Rev:	0
Start Time:	2023-08-31 08:30:00.0
End Time:	2023-10-16 09:30:00.0
Satellites:	GOES-16
Subject:	eclipse-season
Impact:	data-interrupted
Detail:	GOES West Eclipse season. The 08:30 - 09:30 UTC image data may be unavailable, degraded or incomplete.
Revision History:
Issue Time:	2023-09-04 07:47:18.0
Services:	GOES Products

Type:	Planned Maintenance
Ann Nr:	9957
Rev:	0
Start Time:	2023-09-02 11:00:00.0
End Time:	2023-09-02 11:10:00.0
Satellites:	GOES-16
Subject:	instrument-calibration
Detail:	A GOES-16 ABI solar calibration scan is planned on 2 September 2023. Between 11:00 and 11:05 UTC GOES-16 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_G16_s2023245110[SSS]_e20232451115[SSS]_c202324511[mmssSSS]-118900_0.nc. ABI 10-minute Flex Mode (Mode 6) will resume at 11:10 UTC
Revision History:
Status:	scheduled
Issue Time:	2023-08-28 07:58:42.0
Services:	GOES Products

Type:	Planned Maintenance
Ann Nr:	9942
Rev:	0
Start Time:	2023-09-03 14:21:00.0
End Time:	2023-09-04 08:04:00.0
Satellites:	Metop-B
Subsystem:	IASI
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	External Calibration (Moon intrusion)
Revision History:
Status:	scheduled
Issue Time:	2023-08-24 11:41:07.0
Services:	IASI Sounding Products - Metop-B IASI Level 1 - Metop-B EARS-IASI OSI SAF - Products IASI AHRPT Metop-B

Type:	Planned Maintenance
Ann Nr:	9943
Rev:	0
Start Time:	2023-09-03 15:14:00.0
End Time:	2023-09-04 08:57:00.0
Satellites:	Metop-C
Subsystem:	IASI
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	External Calibration. (Moon Intrusion).
Revision History:
Status:	scheduled
Issue Time:	2023-08-24 11:53:37.0
Services:	IASI Level 1 - Metop-C IASI Sounding products- Metop-C EARS-IASI IASI AHRPT Metop-C OSI SAF - Products

Type:	Planned Maintenance
Ann Nr:	9946
Rev:	0
Start Time:	2023-09-04 15:00:00.0
End Time:	2023-09-04 15:10:00.0
Satellites:	GOES-18
Subject:	instrument-calibration
Detail:	A GOES-18 ABI solar calibration scan is planned on 4 September 2023. Between 15:00 and 15:05 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_s20232471500[SSS]_e20232471505[SSS]_c202324715[mmssSSS]-136002_0.nc. ABI 10-minute Flex Mode (Mode 6) will resume at 15:10 UTC.
Revision History:
Status:	scheduled
Issue Time:	2023-08-25 09:43:45.0
Services:	GOES Products

Type:	Planned Maintenance
Ann Nr:	9944
Rev:	0
Start Time:	2023-09-05 07:00:00.0
End Time:	2023-09-07 15:00:00.0
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	Lannion Station Antenna Chains - MEOS Server Upgrades v5.4.5. There may be disruption to the listed EUMETSAT based services during the maintenance period daily between 07:00 and 15:00 UTC.
Revision History:
Status:	scheduled
Issue Time:	2023-08-24 12:02:41.0
Services:	EARS-AVHRR EARS-MWRI EARS-ATOVS EARS-ASCAT EARS-IASI EARS-ATMS EARS-NWC EARS-CrlS EARS-VIIRS EARS-MERSI EARS-VASS

Type:	Planned Maintenance
Ann Nr:	9961
Rev:	0
Start Time:	2023-09-05 08:00:00.0
End Time:	2023-09-07 15:00:00.0
Subject:	ground-segment-maintenance
Impact:	risk-of-interruption
Detail:	Planned maintenance activity on Data Store and Data Tailor. Services may become temporarily unavailable during the maintenance period.
Revision History:
Status:	scheduled
Issue Time:	2023-08-30 14:37:10.0
Services:	Data Store and Data Tailor Web Service

Type:	Planned Maintenance
Ann Nr:	9959
Rev:	0
Start Time:	2023-09-05 08:44:00.0
End Time:	2023-09-05 08:51:00.0
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:	2023-08-30 14:30:52.0
Services:	SEM L0 - Metop-C SEM AHRPT Metop-C

Type:	Planned Maintenance
Ann Nr:	9960
Rev:	0
Start Time:	2023-09-05 08:44:00.0
End Time:	2023-09-05 10:27:00.0
Satellites:	Metop-C
Subsystem:	SEM
Component:	TED
Subject:	instrument-calibration
Impact:	data-unavailable
Detail:	SEM TED in flight calibration.
Revision History:
Status:	scheduled
Issue Time:	2023-08-30 14:31:30.0
Services:	SEM L0 - Metop-C SEM AHRPT Metop-C

Type:	Service Enhancement
Ann Nr:	9779
Rev:	0
Start Time:	2023-09-05 09:00:00.0
End Time:	2023-09-26 09:00:00.0
Subject:	product-change
Detail:	The current Sentinel-3 Altimetry product for Africa will be replaced by a new Sentinel-3 land hydrology thematic product at the end of September 2023 (exact date to be announced). To facilitate user transition to the new product, both current and new products will be distributed in parallel for a period of three weeks, from 5 to 26 September 2023. For full details, see the URL provided below.
Revision History:
Url:	https://www.eumetsat.int/sentinel-3-altimetry-product-africa-be-replaced
Issue Time:	2023-07-12 09:42:15.0
Services:

Type:	Planned Maintenance
Ann Nr:	9958
Rev:	0
Start Time:	2023-09-05 09:32:00.0
End Time:	2023-09-05 09:39:00.0
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:	2023-08-30 14:30:08.0
Services:	SEM AHRPT Metop-B SEM L0 - Metop-B

Type:	Service Enhancement
Ann Nr:	9962
Rev:	1
Start Time:	2023-09-07 09:00:00.0
End Time:	2023-09-07 09:00:00.0
Subject:	product-change
Detail:	Following the release on EUMETCast of Level-1B NOAA-procured Spire Radio Occultation data processed by EUMETSAT, and L2 product generated by the ROM SAF, on 20 June 2023, NOAA switched from Spire to another data provider, PlanetiQ, on 18 July 2023, corresponding to the start of their next 6-month delivery order. L1 and L2 processors have now been adapted to the new PlanetiQ data by EUMETSAT Central Facility and ROM SAF, respectively. Both L1B and L2 PlanetiQ data will start being distributed via EUMETCast Europe and EUMETCast Terrestrial from 7 September 2023. For details on filenames and EUMETCast channels, see the related Product Navigator entry: https://navigator.eumetsat.int/product/EO:EUM:DAT:0374
Revision History:
Issue Time:	2023-08-31 14:11:47.0
Services:	Commercial Radio Occultation NOAA

Type:	Service Enhancement
Ann Nr:	9965
Rev:	0
Start Time:	2023-09-07 09:00:00.0
End Time:	2023-09-07 09:00:00.0
Subject:	general-announcement
Detail:	Filename change for NOAA-19 sounder data distributed as part of the Global NOAA ATOVS L1 service: 'EUMS' in the filename will become 'EUMP'. Current filename example: W_XX-EUMETSAT-Darmstadt,

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