Recently I have serious problems to download Sentinel-1 products. It seems that most downloads are interrupted sometime during the download leaving me with broken zip-files. I tried to overcome this problem by using wget under Windows and the command
wget --no-check-certificate --continue –user={USERNAME} --password={PASSWORD}
“https://scihub.copernicus.eu/dhus/odata/v1/Products(’{UUID}’)/$value”
However, this yields an authentication problem, stating “401 unauthorized” and “Username/Password Authentication Failed”, although I am sure that the Username/Password combination is correct.
Has anyone an idea of what is going on? I registered last year on the Sentinels Scientific Data Hub. Do I need permission by using wget in this way to download data?
I am also using Win 7. After replacing “USER” and “SECRET” by my Username/Password combination, the command you posted yields the following message:
Resolving scihub.copernicus.eu (scihub.copernicus.eu)… 131.176.236.28
Connecting to scihub.copernicus.eu (scihub.copernicus.eu)|131.176.236.28|:443…
connected.
HTTP request sent, awaiting response… 401 Unauthorized
Authentication selected: Basic realm=“OData service”
Connecting to scihub.copernicus.eu (scihub.copernicus.eu)|131.176.236.28|:443…
connected.
HTTP request sent, awaiting response… 500 Internal Server Error
2016-07-11 10:52:17 ERROR 500: Internal Server Error.
Are you running the command in cmd.exe or through another programming environment / language?
Also, if you’re registered since last year, you may try accessing the data through the API hub. But be aware that the archive there only goes back until 2015-11-15.
If the server is the only thing you’re changing, then there’s no reason it shouldn’t work.
Anyways, sometimes there is unannounced maintenance or just things aren’t working for some reason on their side. So it pays off to monitor the situation and try again in some time.
Hi Val, Thank you for giving solutions.
If you go to this web page (https://scihub.copernicus.eu/userguide/5APIsAndBatchScripting) then you will find an example written as # wget --no-check-certificate --user={USERNAME} --password={PASSWORD} --output-document=query_results.txt “https://scihub.copernicus.eu/dhus/search?q=*&rows=25”) #. For new programmers like me {USERNAME} and {PASSWORD} could be so confusing, because if we write {abcd} and {efgh} then it will not work, rather if we write “abcd” and “efgh” then it is working. Why it is written in the website using { }. I think they should change it, otherwise, someone could hang here for a long and lose interest.
I am using the following https://scihub.copernicus.eu/dhus/#/home to download sentinel-1 and I am facing the same problem, but I am not quite sure that I got the solution, so would you please to help me and many thanks in advance.
I am using the following https://scihub.copernicus.eu/dhus/#/home2
to download sentinel-1 and I am facing the same problem, but I am not
quite sure that I got the solution, so would you please to help me and
many thanks in advance.
I am also finding that my windows 10 log in is not being accepted in QGIS using Semi Automatic Classification tool. I was successful in downloading one image of the study area but while trying to do the same for other images - my SAC is unable to connect.
Is there a limit to the images that one can download ?
Certain images of sentinel 1 in sentinel hub has been denoted as offline and i am unable to download it… What is the other mean to download those images which are tagged as offline?
