As per news published on the 27th of July 2017, the old Node 2 address https://colhub.esa.int/dhus will be no more operational starting from the 1st of October 2017.
The new Node 2 address https://colhub2.copernicus.eu/dhus has been operational since the 27th of July 2017 and provides access, with the same credentials, to the last two weeks of:

• Sentinel-1A, Sentinel-1B Near Real Time and Non Time Critical data
  
• Sentinel-2A L1C data.

Users are informed that there has been a delay on the publication of Sentinel-1 products since Saturday 23 2017 at 5:00 UTC up to Tuesday 26 2017 at 20:00 UTC because of an infrastructure performance issue.
The products publication backlog has been recovered as per today 27 September 2017

An unplanned maintenance of the Sentinels data distribution infrastructure has been required starting 26 September 11:49 UTC, resulting in a downtime of the Data Hub Services associated to:
- Open Access Hub (including API Hub, S-2B and S-3A PreOps services)
- Collaborative Data Hub Node 1
- Copernicus Services Data Hub
- International Access Hub

All services are expected to be restored by 18:00 UTC.
The products publication is temporarily delayed of more than 24 hours. The backlog will be gradually recovered following the restoration of the services.

Our apologies for the inconvenience that this may cause.

As follow up of the maintenance activity performed on the 14th of September, a new maintenance is scheduled on the Collaborative Data Hub Node 2 service on Wednesday, the 20th of September 2017, from 09:30 CEST to 18:30 CEST.
During the maintenance window service interruptions might occur along with delays on the products publication.
We apologise for the inconvenience this may cause.

A maintenance activity is scheduled on the Collaborative Data Hub Node 2 service on Thursday, the 14th of September 2017 from 10:00 CEST to 17:30 CEST.
During the maintenance window service interruptions might occur along with delays on the products publication.
We apologise for the inconvenience this may cause.

Dear users,

please be informed that the maintenance activity scheduled for today, 12 September 2017 as per news https://colhub.copernicus.eu/news/News00119 , has been postponed to tomorrow 13 September 2017 from 8:30 CEST to 18:30 CEST.

The maintenance on this date will see all the Data hub Services contemporarily down for the whole maintenance period.
A temporary access to the most recent 14 days of data from all missions will be available for all other users at the following URL:
http://tmphub.copernicus.eu/dhus using a guest account guestuser/guestuser

Affected Data Hub services:

• Copernicus Open Access Hub (also including API Hub, the Sentinel-2B and the Sentinel-3A Pre-operations Data Hubs)
  
• International Access Hub
  
• Copernicus Services Data Hub
  
• Collaborative Data Hub - Node 1
  

Complementary access is available to the ESA/EU collaborative ground segment partners at the Collaborative Data Hub Node 2.

We apologize for any inconvenience caused.

Please note that the Sentinel-1 products acquired within the following sensing times for Sentinel-1A and Sentinel-1B present a degraded geolocation accuracy:

• Sentinel-1A: 2017/09/06 18:57:47 UTC - 2017/09/07 08:07:45 UTC
  
• Sentinel-1B: 2017/09/06 18:07:43 UTC - 2017/09/07 07:17:41 UTC
  

Detailed information is available in the corresponding quality disclaimers:

• Quality Disclaimer #26
  
• Quality Disclaimer #27
  

The impacted products will be reprocessed and made available through the operational data access interfaces. A relevant information will be provided accordingly.

With reference to the news published on 30 August, users are here informed that since 05 September morning, Sentinel-2A/2B products are again nominally available in the data hubs.

The recovery of the Sentinel-2A/2B products missing in specific time windows since 1 August (see corresponding news) will start as soon as possible. Users will be kept informed of the progress.

As from 4 September 2017, the Copernicus Data Hub Service provides a catalogue view of the products published on the Open Access Hub in the form of comma-separated values (CSV) files. It corresponds to the Non Time Critical (NTC) production also published through the Collaborative Data Hub, the Copernicus Services Data Hub and the International Access Hub services.
The CSV files are available at the following address: https://scihub.copernicus.eu/catalogueview/
More information is available on the data hub user guides at the following link: https://scihub.copernicus.eu/userguide/6CatalogueViewInCSV

A series of maintenance activities aiming to upgrade the infrastructure hosting the data hub services, are scheduled on:

• Wednesday, 6 September 2017
  
• Thursday, 7 September 2017
  
• Tuesday, 12 June 2017.
  

The maintenance will affect the data hubs according to the following programme:

Wednesday, 6 September 2017 from 09:00 CEST to 18:30 CEST
Affected Data Hub services:

• Copernicus Open Access Hub (also including API Hub, the Sentinel-2B and the Sentinel-3A Pre-operations Data Hubs)
  
• Collaborative Data Hub - Node 1
  

During the maintenance window service interruptions might occur. The publication of new products will be temporarily delayed for all Sentinel missions.

Thursday, 7 September 2017 from 09:00 CEST to 18:30 CEST
Affected Data Hub services:

• Copernicus Services Data Hub
  
• International Access Hub
  
• Sentinel-2B and Sentinel-3A Pre-operations Data Hub
  
• Data Hub Web Portals
  

During the maintenance window service interruptions might occur. The publication of new products will be temporarily delayed.

Tuesday, 12 September 2017 from 08:00 CEST to 18:30 CEST
The maintenance on this date will see all the Data hub Services contemporarily down for the whole maintenance period.
A temporary access to the most recent 14 days of data from all missions will be available for all other users at the following URL:
http://tmphub.copernicus.eu/dhus using a guest account guestuser/guestuser

Affected Data Hub services:

• Copernicus Open Access Hub (also including API Hub, the Sentinel-2B and the Sentinel-3A Pre-operations Data Hubs)
  
• International Access Hub
  
• Copernicus Services Data Hub
  
• Collaborative Data Hub - Node 1
  

Complementary access is available to the ESA/EU collaborative ground segment partners at the Collaborative Data Hub Node 2.
We apologize for any inconvenience caused.

As a consequence of a ground segment anomaly, the availability of Sentinel-2 products in the data hubs is delayed since 29 August 2017.
The anomaly is under investigation and further updates will be provided.
We apologise for the inconvenience this may cause.

Referring to the news of 11 August , users are informed that the contingency issue occurred at Matera has been solved and nominal Sentinel-2A/B production was restarted yesterday 16 August in the early afternoon.
An inventory of the missing production is being consolidated and all impacted S2A/B L1C products will be recovered in the coming weeks, together with the ongoing recovery of missing products between 1st and 8th August as reported in the news of 09 August .

As a consequence of a ground segment contingency occurred at Matera station, the publication of Sentinel-2 products in the data hubs is temporarily interrupted as of today 11 August. The anomaly is under investigation and the data dissemination is expected to resume by mid of next week.

Referring to the news of 4 August (https://colhub.copernicus.eu/news/News00114), we are pleased to inform users that the anomaly occurred in the Svalbard processing chain on the 1st August has been solved and nominal Level-1 production was restarted yesterday 8 August at around 16:00 UTC.

An inventory of the missing production between 1st and 8th August is being consolidated and all missing S2A/B Level-1C products will be recovered within a couple of weeks.

We apologize again for the inconvenience this may cause.

As a consequence of a ground segment anomaly in the Svalbard processing chain, the availability of Sentinel-2 products in the data hubs is severely impacted since 01 August 2017.

The anomaly is under investigation and further updates will be provided at the beginning of next week, including the plan for recovery of the missing production.

We apologise for the inconvenience this may cause.

There is a major upgrade of Node 2 of the Collaborative Data Hub, replacing the current access from https://colhub.esa.int/dhus.
The new node 2 hub will be opened on 27-July-2017 and is to be accessed via https://colhub2.copernicus.eu/dhus.
The new node will provide access to Sentinel-1A, -1B NRT and NTC data flows as well as the Sentinel-2A L1C whilst also being prepared for the publication of Sentinel-3A and -2B following the summer.
The previous node 2 address (https://colhub.esa.int/dhus) will continue to operate with the current data flows for a period of 4 weeks to allow for the transition. All of the current user accounts on colhub.esa.int will be available on the new node 2.

There will be a major maintenance of the Sentinels Data hub services on Tuesday, the 1st of August 2017.
The maintenance window will start at 06:30 UTC (08:30 CEST) and is expected to finish at 16:00 UTC (18:00 CEST).
The maintenance will affect the following access points:

• Open Access Hub (including the API Hub and the Pre-ops Hubs for Sentinel-3A and -2B)
  
• Copernicus Services Data Hub
  
• Collaborative Data Hub Node 1
  
• International Access Hub
  

During this maintenance window, complementary access will be made available to the ESA/EU collaborative ground segment partners at the Collaborative Data Hub Node 2.

A temporary access to the most recent 14 days of data from all missions will be available for all other users at the following URL:
http://tmphub.copernicus.eu/dhus using a guest account guestuser/guestuser

During the maintenance the web portals will be also unavailable.

No new data from the Sentinel missions will be published during the maintenance window, but the new data will be published in the nominal access points following the closure of the maintenance.
We apologise for the inconvenience caused.

As a consequence of a ground segment anomaly, Sentinel-2A products publication in the data hubs was interrupted from 15 to 17 June 2017. The recovery is ongoing and is expected to be completed in the coming days.

We apologize for the inconvenience this may cause.

Following the successful completion of the Sentinel-2B Satellite In-Orbit Commissioning Phase, we are happy to announce that access to Sentinel-2B Level-1C products will be opened to all users on 6 July .

Access to Sentinel-2B products will initially be provided through a dedicated hub accessible via the Copernicus Open Access Hub home page with public credentials. This dedicated interface will be maintained until early September, at which point both Sentinel-2A and Sentinel-2B products will be commonly accessible through the nominal Data Hub interfaces.

A routine decontamination activity of the Sentinel-2A MSI is planned over a continuous period of approximately 24-hours between 17:40 07/07/2017 and 17:00 08/07/2017 UTC.

During this time window no MSI acquisition will take place. Correlated calibration activities will be performed around the decontamination that will further affect the acquisition plan between 05:40 07/07 and 08:40 09/07 UTC.