I want to process Sentinel-1 GRDH data with SNAP 11. As a first step, I create a subset. Then, I apply the orbit file, followed by radiometric calibration. Unfortunately, it doesn’t work. I get the following error message: “unable to find calibration element in original product metadata”
It seems that the metadata is not preserved when creating the subset. I have tried this with various Sentinel-1 GRDH datasets, and each time, this error message appears.
If I perform the calibration before creating the subset, everything works perfectly. However, this significantly increases the processing time, which becomes highly relevant when dealing with a large number of datasets.
I’m pretty sure that this was working well in former versions of SNAP.
Has anyone observed similar behavior or has a tip on how I can proceed with this?