First off, I’m new to the SNAP tool so hopefully I haven’t missed anything obvious that’s already documented or been answered.
My specific issue is with attempting to apply a precise orbit file to an SLC image. After waiting for some time, I eventually receive a SNAP error.
It appears to me that the orbit file is being retrieved and placed in .snap/auxdata/Orbits/Sentinel-1/POEORB/S1A/2018/12 as an EOF file. As a side note I am more than happy to manually download orbit files and apply them but this doesn’t appear to be possible with SNAP?
My particular situation may be complicated by having to run SNAP in a virtual machine (Debian 10). However, I have confirmed internet access and SNAP connectivity.
Can anyone shed any light on this or offer a workaround?
More generally, I am attempting to process two SLC images of the same region (not necessarily from the same aspect) to obtain complex ground plane images that I can export to HDF5 and overlay. Ideally I would have a georeferenced overlay in SNAP so that I could save two data files then load separately as aligned images in another tool. Second best would be to have arrays that just require shifts to align. What would be the best way to achieve this?
So far, I believe I need the following steps but am not 100% sure of the order. Any advice here would be appreciated.
Apply orbit; split swaths; calibrate; deburst; multilook; registration; slant to ground.
Long post, sorry!