'401 – Unauthorized' error on 'Download Sentinel data' operator

Hi,

I am receiving a ‘401 – Unauthorized’ error message with ‘Download Sentinel data’ operator when trying to download some recent images (from less than a year ago). I can get them from Open Hub, with same user and password.

I saw the error message by running sentinel_data_download.sh (see the log below).

Anyone with any idea about that issue and on how to solve it?

Regards,

Marc


Searching for scenes on https://scihub.copernicus.eu/apihub
2021-02-04T00:00:00Z - 2021-03-04T23:59:59Z
beginPosition:[2021-02-04T00:00:00Z TO 2021-03-04T23:59:59Z] cloudcoverpercentage:[0 TO 70] filename:T20HPG platformname:Sentinel-2 producttype:S2MSI
2A footprint:“Intersects(MULTIPOLYGON(((-61.6957 -34.6246,-61.4783 -34.6256,-61.4788 -34.8616,-61.6967 -34.8611,-61.6957 -34.6246))))”
HTTP status 401 Unauthorized:

HTTP Status 401 – Unauthorized


Type Status Report

Message Unauthorized

Description The request has not been applied because it lacks valid
authentication credentials for the target resource.


Type Status Report

Message Unauthorized

Description The request has not been applied because it lacks valid
authentication credentials for the target resource.


Apache Tomcat/8.0.53

beginPosition:[2021-02-04T00:00:00Z TO 2021-03-04T23:59:59Z] cloudcoverpercentage:[0 TO 70] filename:T20HPG platformname:Sentinel-2 producttype:S2MSI
2A footprint:“Intersects(MULTIPOLYGON(((-61.6957 -34.6246,-61.4783 -34.6256,-61.4788 -34.8616,-61.6967 -34.8611,-61.6957 -34.6246))))”
Found 0 scenes
Locating scenes in eodata store…

It would be best to direct your question to the scihub support directly.
The contact address for the support is stated on the front page:
eosupport@copernicus.esa.int

@ppmarc, complementing Marco’s reply… I don’t think you problem relates to SNAP (directly or indirectly). This forum is focused on the SNAP Software, an open source software design to help users analyse EO data (like those of the Sentinels).

You seem to be having problems with the data distribution service of the Sentinels, for which the official support team can be contacted via the address that Marco supplied.

Where did you get this script from? Perhaps they can help you or perhaps you need a more recent version that perhaps fixes the problem? Or perhaps you are doing something wrong?
If the account works in the web page and not in the API endpoint perhaps you really should first ask the SCIHUB support team to check.

Thanks for your reply.

I’m already in contact with scihub support team. It seems that there are some issues with their API URLs, maybe related to https://scihub.copernicus.eu/news/News00868.

Best regards,

Marc

Hello @cristianoLopes,

Thanks for your reply.

You were right, I now can download data from another scihub URL.

The script is from the Sen-ET plugin. I missed to include the appropriate category flags when creating the topic.

Best regards,

Marc

Hi Marc,

Could you please provide details on how you fixed this issue? I am having the same problem.

All the best,
Brian

I found the fix for the issue thanks to the comments in this thread, posting again to add some details.

I changed the hub_address variable in the find_sentinel_images and download_from_hub functions in the find_sentinel_images.py script from https://scihub.copernicus.eu /apihub to https://apihub.copernicus.eu /apihub.

Thank you for the information.
All the best,
Brian