INFO: org.esa.snap.core.dataop.dem.ElevationFile: http retrieving

Hi, I have been using this code to preprocess S1 data: https://github.com/wajuqi/Sentinel-1-preprocessing-using-Snappy/blob/master/s1_preprocessing.py , but I keep getting the following error.

I can’t understand why it doesn’t retrieve correctly when the link (http://srtm.csi.cgiar.org/wp-content/uploads/files/srtm_5x5/TIFF/srtm_46_12.zip) works fine.

Any suggestions would be most helpful, thanks!

Yes, this is strange.
Are you still using SNAP6?
In SNAP 7 the default download location should be
http://cgiar-csi-srtm.openterrain.org.s3.amazonaws.com/source/

You can modify the default location in the snap.auxdata.properties file which is located in the etc folder in the installation directory.

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Thanks for your response Marco!
Yes, this is SNAP 7, and even with the default download location it still doesn’t seem to be working:

Would you have any other suggestions?
Many thanks :slight_smile:

Sorry, I have no further idea.
Maybe @lveci has one.

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@lveci Hi Luis, I was wondering if you had any time to investigate this?

Could your server be down perhaps? As I am also receiving a “Connection timed out” error and have thoroughly looked into this on my side.

Any help would be much appreciated, thanks. :slight_smile:

@JunqianW did you encounter any of these problems?

Many thanks