Due to Copernicus Sentinel-3B In-Plane Manoeuvre, SLSTR products degradation is expected for sensing time from 28/09/2023T08:35:39 to 28/09/202308:45:43 UTC.

Due to Copernicus Sentinel-3A In-Plane Manoeuvre, SLSTR products degradation is expected for sensing time from 27/09/2023T08:05:32 to 27/09/2023T08:15:53 UTC.

Due to predicted outage for Copernicus Sentinel-3A SLSTR Calibration, SLSTR Products degradation is expected for sensing time from 26/09/2023T07:18:00 to 28/09/2023T03:30:00 UTC.

The actual ground track orbit of the Sentinel-3B (S3B) satellite has been observed to violate the nominal dead-band of +/- 1km from the reference orbit over different periods of the year 2023 as you can see from the figure here below.

The left axis of the plot corresponds to the maximum ground track deviation w.r.t. the S3B reference orbit +only if > -1 km (so violating the dead-band), when the right axis corresponds to the latitude for those violations.

In the case of S3B, the dead-band violations occur over every latitude band, and quite frequently in August 2023 when crossing the equator.

Users are informed that this issue may impact the performance of the S3B Altimetry Inland Water data products.

The joint ESA-EUMETSAT Sentinel-3 project is working to ensure a better maintenance of the S3B satellite unit within the nominal dead-band.

Due to Copernicus Sentinel-3B Moon calibration, data will be degraded on hereafter products:

• Copernicus Sentinel-3B SLSTR: products degradation is expected for sensing time from 29/10/2023T06:41:36 to 29/10/2023T07:32:06
• Copernicus Sentinel-3B OLCI: products degradation is expected for sensing time from 29/10/2023T07:26:10 to 29/10/2023T07:32:0
• Copernicus Sentinel-3B SRAL: products degradation is expected for sensing time from 29/10/2023T06:42:36 to 29/10/2023T07:13:33

Due to predicted outage for Copernicus Sentinel-3A SLSTR Calibration, SLSTR Products degradation is expected for sensing time from 26/09/2023T07:18:00 to 28/09/2023T03:30:00 UTC.

We are pleased to announce the deployment on 20th September 2023 of new Land Altimetry processing baseline 03.22 implementing the transition from present operational Land products to the new Altimetry Thematic Products over Inland Waters, Sea-Ice and Land Ice surfaces as described in:

https://sentinels.copernicus.eu/web/sentinel/-/sentinel-3-land-altimetry-land-thematic-products-with-baseline-collection-005-availability-notice-update-on-28-march-2023

Product filenames follow the following convention:

Baseline Collection Number:

004: Old processing baseline

005: New processing baseline, i.e. Thematic processing.

Production Centre:

LN2: For the NTC pilot production started with data from June 2022 and until the operational deployment, and also for the historical re-processed datasets.

PS1 and PS2: For the two operational Processing Service

e.g.

S3A_SR_2_LAN_HY_20230921T121518_20230921T122118_20230921T133634_0360_103_309_____PS1_O_NR005.SEN3

NRT Hydrology product by the operational Processing Service #1 (S3A)

S3B_SR_2_LAN_HY_20230828T090839_20230828T093341_20230921T123345_1501_083_207_____PS2_O_NT005.SEN3

NTC Hydrology product by operational Processing Service #2 (S3B)

S3A_SR_2_LAN_HY_20230823T051701_20230823T053334_20230920T235707_0993_102_276_____LN3_O_NT005.SEN3

NTC Hydrology product by pilot processing centre LN3

Due to predicted outage for Copernicus Sentinel-3B Out-of-Plane Manoeuvre, SLSTR and SRAL Products degradation is expected for sensing time from 20/09/2023T08:29:36 to 20/09/2023T09:04:33 UTC.

Due to Copernicus Sentinel-3A SRAL on-board maintenance, SRAL Products degradation is expected for sensing time from 19/09/2023T11:55:00 to 22/09/2023T17:22:00 UTC.

We are pleased to announce the deployment on 20th September 2023 of new Land Altimetry processing baseline 03.22 implementing the transition from present operational Land products to the new Altimetry Thematic Products over Inland Waters, Sea-Ice and Land Ice surfaces as described in this news.

The new Thematic Products have already been available since July 2022 as pilot products; however, the pilot Thematic products were limited to NTC timeliness. The release in operations, the Thematic Products will be produced for all timeliness: NRT, STC and NTC.

Beware, the new processing baseline will no longer produce the old products: Level 1B (SR_1_SRA_), Level 1BS (SR_1_SRA_BS) and Level 2 (SR_2_LAN_).

Whereas Level 1A (SR_1_SRA_A) will be produced for all timeliness: NRT, STC and NTC.

Historical series for the Thematic Products have also been produced and are available as per previous news: Copernicus Sentinel-3 Land Thematic Products: Full Mission Reprocessing & Availability Status.

Due to Copernicus Sentinel-3A In-Plane Manoeuvre, SLSTR products degradation is expected for sensing time from 31/08/2023T08:00:40 to 31/08/2023T08:10:42 UTC

Due to predicted outage for Copernicus Sentinel-3B In-Plane Manoeuvre, SLSTR Products degradation is expected for sensing time from 31/08/2023T07:19:39 to 31/08/2023T07:29:43 UTC

Due to Copernicus Sentinel-3B Moon calibration, data will be degraded on hereafter products:

• Copernicus Sentinel-3B SLSTR: products degradation is expected for sensing time from 31/08/2023T08:45:25 to 31/08/2023T09:35:55

• Copernicus Sentinel-3B OLCI: products degradation is expected for sensing time from 31/08/2023T09:29:55 to 31/08/2023T09:35:55

• Copernicus Sentinel-3B SRAL: products degradation is expected for sensing time from 31/08/2023T08:46:25 to 31/08/2023T09:17:15

Due to Copernicus Sentinel-3A Out-of-Plane Manoeuvre, SLSTR and SRAL products degradation is expected for sensing time from 17/08/2023T07:04:27 to 17/08/2023T07:41:45 UTC

Due to predicted outage for Copernicus Sentinel-3B OLCI Calibration, OLCI Products degradation is expected for sensing time from 21/08/2023T09:06:27 to 21/08/2023T09:07:37 UTC

Due to predicted outage for Copernicus Sentinel-3B In-Plane Manoeuvre, SLSTR Products degradation is expected for sensing time from 16/08/2023T07:09:11 to 16/08/2023T07:18:46 UTC

Due to the execution of Copernicus Sentinel-3B SLSTR CDE power-cycle, SLSTR products degradation is expected for sensing time from 2023/08/16T12:41:20 to 2023/08/17T02:49:14 UTC

Due to Copernicus Sentinel-3B SRAL on-board maintenance activity, SRAL Products degradation is expected for sensing time from 21/08/2023T12:10:00 to 24/08/2023T17:00:00 UTC

Due to the execution of Sentinel-3B Collision Avoidance Manoeuvre, data degradation is expected for hereafter products:

Sentinel-3B SLSTR-IR from 2023/08/10T15:15:49 to 2023/08/10T15:25:52

Sentinel-3B SLSTR-VIS from 2023/08/10T15:15:49 to 2023/08/10T15:25:52

Sentinel-3B OLCI from 2023/08/10T15:15:49 to 2023/08/10T15:25:52

Due to the execution of Sentinel-3B SLSTR CDE power-cycle, SLSTR-IR and SLSTR-VIS products degradation is expected for sensing time from 2023/08/16T12:37:00 to 2023/08/17T00:37:00