Date/Time Issued: March 24, 2023, 1713Z 

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

Date/Time of Initial Impact:  March 23, 2023 1625Z   (from the Eumetsat message)

Date/Time of Expected End: See table in details

Details/Specifics of Change: See list below

Message number: 10436

Message creation: Fri Mar 24 16:25:43 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: 9243
Rev: 0
Start Time: 2023-02-07 20:30:00.0
End Time: 2023-03-28 01:30:00.0
Satellites: MET-9
Subject: eclipse-season
Impact: risk-of-degradation
Detail: There is a risk of degraded image quality every night from 20:30 to 23:00 in the given time period.
Revision History:
Status: scheduled
Issue Time: 2023-02-01 12:56:52.0
Services: IODC Meteosat Meteorological Products
IODC SEVIRI Level 1.5 Image Data

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: Planned Maintenance
Ann Nr: 9284
Rev: 0
Start Time: 2023-02-20 22:30:00.0
End Time: 2023-04-09 22:30:00.0
Satellites: MET-10
Subject: eclipse-season
Impact: risk-of-degradation
Detail: There is a risk of degraded image quality every night from 22:30 to 01:00 next day in the given time period.
Revision History:
Status: scheduled
Issue Time: 2023-02-15 16:13:27.0
Services: RSS Meteosat Meteorological Products
RSS SEVIRI Level 1.5 Image Data

Type: Planned Maintenance
Ann Nr: 9287
Rev: 0
Start Time: 2023-02-24 23:00:00.0
End Time: 2023-04-12 01:30:00.0
Satellites: MET-11
Subject: eclipse-season
Impact: risk-of-degradation
Detail: There is a risk of degraded image quality every night from 23:00 to 01:30 next day in the given time period.
Revision History:
Status: scheduled
Issue Time: 2023-02-15 16:17:55.0
Services: 0° Meteosat Meteorological Products
0° SEVIRI Level 1.5 Image Data

Type: Planned Maintenance
Ann Nr: 9391
Rev: 0
Start Time: 2023-03-13 15:00:00.0
End Time: 2023-03-28 08:00:00.0
Satellites: MET-10,MET-11
Subject: service-change
Impact: data-unavailable
Detail: In the frame of the Meteosat-10 / Meteosat-11 mission swap, Meteosat-10 Rapid Scanning Service (RSS) will be suspended during the announced period. Meteosat-11 is expected to take over the RSS service as of 28 March 2023 08:00 UTC. For further details, please refer to the URL link below.
Revision History:
Url: https://www.eumetsat.int/meteosat-10meteosat-11-mission-swap
Status: scheduled
Issue Time: 2023-03-09 15:57:45.0
Services: RSS Meteosat Meteorological Products
RSS SEVIRI Level 1.5 Image Data

Type: Planned Maintenance
Ann Nr: 9390
Rev: 2
Start Time: 2023-03-14 08:00:00.0
End Time: 2023-04-05 17:30:00.0
Subject: ground-segment-maintenance
Impact: risk-of-degradation
Detail: Planned maintenance activity on Data Store, Data Tailor and EUMETView services. Services may become temporarily unavailable during the maintenance period.
Revision History:
Status: scheduled
Issue Time: 2023-03-24 16:23:34.0
Services: EUMETView
Data Store and Data Tailor Web Service

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: Planned Maintenance
Ann Nr: 9424
Rev: 0
Start Time: 2023-03-26 19:50:00.0
End Time: 2023-03-26 19:51:00.0
Satellites: Jason-3
Subject: in-plane-manoeuvre
Impact: data-degraded
Detail: Station keeping manoeuvre. The semi-major will be increased by 14.635m, resulting in radial orbit errors in the OGDRs. OGDR products may be degraded 30 minutes before and up to 2 hours after the manoeuvre. This will affect the sea surface height, but not the wind and wave content in the products.
Revision History:
Status: scheduled
Issue Time: 2023-03-22 08:45:40.0
Services: Jason-3 OGDR

Type: Planned Maintenance
Ann Nr: 9438
Rev: 0
Start Time: 2023-03-27 07:30:00.0
End Time: 2023-03-27 17:00:00.0
Subject: ground-segment-maintenance
Impact: risk-of-delay
Detail:
Revision History:
Status: scheduled
Issue Time: 2023-03-23 09:29:02.0
Services: OLCI Level 1 Products - S3A
OLCI Level 2 Marine Products - S3A
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
OLCI Level 1 Products - S3B
OLCI Level 2 Marine Products - S3B
SLSTR Level 1 Products - S3B
SLSTR Level 2 Atmospheric Products - S3B
SLSTR Level 2 Marine Products - S3B
SRAL Level 1 Products - S3B
SRAL Level 2 Marine Products - S3B

Type: Planned Maintenance
Ann Nr: 9437
Rev: 0
Start Time: 2023-03-27 08:00:00.0
End Time: 2023-03-28 16:00:00.0
Subject: service-change
Impact: data-delayed
Detail: Planned maintenance activity on EUMETView. Users may experience delays in the updates to the EUMETView catalogue during the maintenance period.
Revision History:
Status: scheduled
Issue Time: 2023-03-22 15:58:51.0
Services: EUMETView

Type: Planned Maintenance
Ann Nr: 9320
Rev: 0
Start Time: 2023-03-27 08:15:00.0
End Time: 2023-03-27 16:00:00.0
Satellites: Metop-B
Subsystem: IASI
Subject: instrument-maintenance
Impact: data-unavailable
Detail: Compensation Device repositioning. Multiple outages of up to two hours over a six hour period are expected. More precise timing will be announced closer to the event.
Revision History:
Status: scheduled
Issue Time: 2023-02-22 16:53:28.0
Services: IASI Sounding Products - Metop-B
IASI Level 1 - Metop-B
EARS-IASI
IASI AHRPT Metop-B
OSI SAF - Products

Type: Planned Maintenance
Ann Nr: 9429
Rev: 0
Start Time: 2023-03-27 14:01:00.0
End Time: 2023-03-27 14:07:00.0
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: 2023-03-22 14:22:48.0
Services: ASCAT Soil Moisture - Metop-B
ASCAT Level 1 - Metop-B
EARS-ASCAT
ASCAT AHRPT Metop-B

Type: Planned Maintenance
Ann Nr: 9426
Rev: 0
Start Time: 2023-03-28 03:43:00.0
End Time: 2023-03-28 03:44:00.0
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: 2023-03-22 14:16:57.0
Services: IODC Meteosat Meteorological Products
IODC SEVIRI Level 1.5 Image Data

Type: Planned Maintenance
Ann Nr: 9430
Rev: 0
Start Time: 2023-03-28 08:23:00.0
End Time: 2023-03-28 08:30:00.0
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: 2023-03-22 14:23:32.0
Services: SEM AHRPT Metop-B
SEM L0 - Metop-B

Type: Planned Maintenance
Ann Nr: 9431
Rev: 0
Start Time: 2023-03-28 09:16:00.0
End Time: 2023-03-28 09:23:00.0
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: 2023-03-22 14:24:22.0
Services: SEM L0 - Metop-C
SEM AHRPT Metop-C

Type: Planned Maintenance
Ann Nr: 9435
Rev: 0
Start Time: 2023-03-28 09:16:00.0
End Time: 2023-03-28 11:13:00.0
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: 72854,72855
Status: scheduled
Issue Time: 2023-03-22 14:44:16.0
Services: AMSU-A Level 1 - NOAA
MHS Level 1 - NOAA
HIRS Level 1 - NOAA
AVHRR Level 1 - NOAA
ATOVS Sounding products - NOAA

Type: Planned Maintenance
Ann Nr: 9436
Rev: 0
Start Time: 2023-03-28 10:00:00.0
End Time: 2023-03-29 18:00:00.0
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: 28 March between 10:00 and 18:00 UTC, and on 29 March between 10:00 and 18:00 UTC.
Revision History:
Status: scheduled
Issue Time: 2023-03-22 15:15:13.0
Services: AVHRR Level 1 - NOAA
AMSU-A Level 1 - NOAA
MHS Level 1 - NOAA
ATOVS Sounding products - NOAA
HIRS Level 1 - NOAA

Type: Planned Maintenance
Ann Nr: 9427
Rev: 0
Start Time: 2023-03-29 12:03:00.0
End Time: 2023-03-29 12:04:00.0
Satellites: Metop-B
Subject: in-plane-manoeuvre
Impact: data-degraded
Detail: Routine in-plane manoeuvre. Reduced data quality should be expected for data sensed during this period.
Revision History:
Status: scheduled
Issue Time: 2023-03-22 14:20:45.0
Services: AMSU-A Level 1 - Metop-B
AVHRR Level 1 - Metop-B
SEM L0 - 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
IASI Sounding Products - Metop-B
Multi-Sensor Products - Metop-B
AVHRR Polar Winds - Metop-B
ASCAT Soil Moisture - Metop-B
A-DCS AHRPT Metop-B
AMSU-A AHRPT Metop-B
ASCAT AHRPT Metop-B
AVHRR AHRPT Metop-B
GOME-2 AHRPT Metop-B
GRAS AHRPT Metop-B
HIRS AHRPT Metop-B
IASI AHRPT Metop-B
SEM AHRPT Metop-B
MHS AHRPT Metop-B

Type: Service Enhancement
Ann Nr: 7033
Rev: 12
Start Time: 2023-03-30 08:00:00.0
End Time: 2023-03-30 16:00:00.0
Subject: product-change
Detail: The update will take place on 30 March 2023, with a risk period during the indicated times.
Revision History: [Rev.1] Principal Component (PC) compressed IASI L1C data will be updated in November 2021 (exact date to be announced in due course). For full details, see the URL provided below. [Rev. 2]: The update is being deferred to Q1 2022, with exact date to be announced in due course. [Rev. 3]: A live test data stream has been put in place. For details on how to access the data and how to use them, see the URL provided below. [Rev. 4]: The update is being deferred to Q4 2022, with exact date to be announced in due course. [Rev.5] New date: Principal Component (PC) compressed IASI L1C data will be updated on 15 August 2022. For full details, see the URL provided below. [Rev.6] New date: Principal Component (PC) compressed IASI L1C data will be updated in mid-November 2022, with exact date to be announced in due course. For full details, see the URL provided below. [Rev.7] The update will take place on 24 November 2022. For full details, see the URL provided below. [Rev.8] The update has been deferred to 7 December 2022. [Rev.9] The update has been deferred to January 2023, with exact date to be announced later. [Rev.10] The update has been deferred to 28 February 2023. [Rev.11] The update has been deferred to the end of March 2023, with exact date to be announced soon.
Url: https://www.eumetsat.int/changes-pc-compressed-iasi-l1c-data
Status: scheduled
Issue Time: 2023-03-23 14:20:59.0
Services: IASI Level 1 - Metop-A
IASI Level 1 - Metop-B
IASI Level 1 - Metop-C

Type: Service Enhancement
Ann Nr: 8993
Rev: 4
Start Time: 2023-03-30 08:00:00.0
End Time: 2023-03-30 16:00:00.0
Subject: product-change
Detail: The release will take place on 30 March 2023, with a risk period during the indicated times.
Revision History: [Original] Release of a new version of IASI Level 2 Product Processing Facility (PPF), v6.7. For full details, see the URL provided below. [Rev.1] The release is being deferred to January 2023, with exact date to be announced later. [Rev.2] The release is being deferred to 28 February 2023. [Rev.3] The release is being deferred to the end of March 2023, with exact date to be announced soon.
Url: https://www.eumetsat.int/release-iasi-level-2-ppf-version-67
Issue Time: 2023-03-23 14:22:12.0
Services: IASI Sounding Products - Metop-B
IASI Sounding products- Metop-C

Type: Planned Maintenance
Ann Nr: 9432
Rev: 0
Start Time: 2023-03-30 19:15:00.0
End Time: 2023-03-30 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: 2023-03-22 14:24:52.0
Services: GOME-2 Level 1 - Metop-C
GOME-2 AHRPT Metop-C
AC SAF - Products

Type: Planned Maintenance
Ann Nr: 9428
Rev: 0
Start Time: 2023-03-30 19:44:00.0
End Time: 2023-03-30 20:43:00.0
Satellites: Metop-B
Subsystem: GOME-2
Subject: instrument-calibration

Contact Information:  ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880

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