Orbits download returns error 404

[gboldeanu]

Hello!

When I try to run a workflow based on PyGMTSAR developed last year, i encounter a problem regarding orbits downloading, more exactly i think that some files are missing from the URL:
requests.exceptions.HTTPError: 404 Client Error: Not Found for url: https://s1orbits.pechnikov.workers.dev/S1A/2025/01/01/index.csv

I download the orbits as before, so nothing changed, but the code will be something like S1.download_orbits(datadir, S1.scan_slc(datadir))

OS and software version
Please specify your operating system and the version of PyGMTSAR you are using, if applicable.

• OS: Ubuntu 22.04
• PyGMTSAR version: 2025.2.3

Is this a known issue ? I am reluctant to update due to possible future issues in the workflow.

[AlexeyPechnikov]

Fixed, please try again.

[gboldeanu]

For the Orbit download part everything works as expected. Right now, I see that there are some problems with DEM and Landmask downloading:

2026-03-11 10:30:02,257 - INFO - Tiles Parallel Downloading: 0% (0/1) [00:00<?, ?it/s]
Request error for Copernicus_DSM_COG_{product1}0_{SN2}_00_{WE3}_00_DEM.tif: 404 Client Error: Not Found for url: https://copernicusdem1s.pechnikov.workers.dev/Copernicus_DSM_COG_10_N37_00_E014_00_DEM/Copernicus_DSM_COG_10_N37_00_E014_00_DEM.tif
2026-03-11 10:30:03,465 - INFO - Tiles Parallel Downloading: 100% (1/1) [00:01<00:00,  1.21s/it]
Request error for {SN2}{WE3}.nc.gz: 404 Client Error: Not Found for url: https://gmtlandmask.pechnikov.workers.dev/1s/N37/N37E014.nc.gz

I think is something related to the same issue. Thank you for promptitude.

[AlexeyPechnikov]

Yes, the same. I disabled some share paths as unused recently. What DEM is affected?

[gboldeanu]

Sorry for the very late reply. The DEM that is affected is this one Copernicus_DSM_COG_10_N38_00_W108_00_DEM.tif with the error looking like:

Request error for Copernicus_DSM_COG_{product1}0_{SN2}_00_{WE3}_00_DEM.tif: 404 Client Error: Not Found for url: https://copernicusdem1s.pechnikov.workers.dev/Copernicus_DSM_COG_10_N38_00_W108_00_DEM/Copernicus_DSM_COG_10_N38_00_W108_00_DEM.tif

Thank you!