Orbit file timeout (March 2021)

I’m a bit confused - will we be able to keep getting orbit files from ftp://aux.sentinel1.eo.esa.int? This is the most convenient method for us.

No, that will unfortunately not be available any longer.

Was there an earlier announcement about this that I missed?


I’m using gpt for preprocessing Sentinel 1 GRD images, Apply-Orbit-File is one of my processing steps. Unfortunately, this step doesn’t work anymore as its not able to retrieve the orbit files. Is there a way to tell SNAP/gpt to use the new source?


In the open access hub guide there’s no reference to POD data offer via api, can someone point me to an example?

To list available products:

login with gnssguest / gnssguest

Then download products using the ids found in the XML output, eg,

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It looks like this issue has been resolved ~4 hours ago but no updates are yet available when I check the graphical or headless plugin updater: https://senbox.atlassian.net/browse/SITBX-842

Does anyone know how long it takes for these types of updates to be made available via the plugin updater?

Unfortunately not, which is why we were not prepared for it either. It is still possible to download orbits manually and possibly via an API .

Understood. I’m guessing there is some internal discussion about this already. If it helps, you could mention that Earth Engine alone had about 5000 users working with S1 GRD in the last week, and many of them need to have recent images. It would be better to signal about such transitions in advance so that we could prepare for the new system.

Thanks a lot,
I’ll try tomorrow hoping that updated orbit will be available. In the ftp the newest one was 25th Feb and in gnss web the resorb was from 16th Feb.

An ETA on when the orbits post Feb 25 would be available will be very helpful for us to prepare.

s1tbx-8.0.2 has been released. It will at least bring back the functionality for historical orbit files.
For current orbit files, we’ll automate retrieving from the gnsshub by next week.

Sorry for any inconvenience.


Thank you @lveci!

How can we update to s1tbx-8.0.2 on headless sytems? When I try this from the command line no updates are found.

/usr/src # /usr/local/snap/bin/snap --nosplash --nogui --modules --update-all
/usr/local/snap/bin/../platform/lib/nbexec: WARNING: environment variable DISPLAY is not set
Updates not found.

But I see that an upgrade is available when I list modules (here’s an example)

org.csa.rstb.rstb.op.polarimetric.tools            8.0.1    Upgrade to 8.0.2

When I try to update a specific module, it look like it detects an update but then it fails

/usr/src # /usr/local/snap/bin/snap --nosplash --nogui --modules --update org.esa.s1tbx.s1tbx.op.calibration
/usr/local/snap/bin/../platform/lib/nbexec: WARNING: environment variable DISPLAY is not set
Will update org.esa.s1tbx.s1tbx.op.calibration@8.0.1 to version 8.0.2
Establishing a connection ...
Establishing a connection ...
S1TBX Calibration
S1TBX Calibration


Nothing to update. The pattern [org.esa.s1tbx.s1tbx.op.calibration] has no match among available updates.

Thank you so much once again Iveci.

Hi @simonf,
thanks for the help, the query

https://scihub.copernicus.eu/gnss/search?q=producttype:AUX_RESORB AND ingestiondate:[2021-02-17T10:00:000Z TO NOW] AND platformname:Sentinel-1

is working well, but obviously in this moment what is missing are data … latest sentinel-1 RESORB is from 16th Feb 2021, while on the ftp site (now supposed to be replaced by gnss) the latest one is from 25th Feb 2021.
I hope the problem will be fixed soon to proceed with images waiting to be processed.

Same problem here.Capture

First you have to call:

snap --nosplash --nogui --modules --list --refresh
This will check the repository for the latest updates.
Afterwards you can call

snap --nosplash --nogui --modules --update-all
This should update your installation.

If you this first, without --refresh the update information from the last check (maybe a few days ago) is used.

While updtaing I’ve seen an exception, saying “connection reset” or similar. But seems not to have an effect on the update.

When now starting my SNAP installation, the S1TBX is updated:


The “ftp://aux.sentinel1.eo.esa.int” seems now updated after several day of missing orbit updates, while the “scihub.copenicus.eu/gnss” is still not updated with Sentinel-1 RESORB blocked at 16th Feb.

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Looks like the orbits stopped being updated again around mid-day of Mar 05.