I used SNAP to do Sentinel-1 interferometry. It needs precise orbit files, but i found it took a very long time (more than one hour) in the step ‘Apply orbtit file’ due to, I think, the network connection problem. Can I download the orbit files mannually and put it in somewhere that SNAP can skip automatic download step? And in which folder i should put it in?
yes, this is possible - please check here:
Thank you very much for your prompt reply. The problemwas fixed by doing this!
kind of silly question. Are those orbit files applicable for all sentinel 1 acquisitions all over the globe?
Yes, you will need to use the correct orbit file for the acquisition. SNAP will find it for you automatically.