Coregistration : Empty Slave after stacking using coregistration

[ABraun]

@sumiya

If your connection is unstable, better solution is use 1arcsec dem on coregistration step. It will decrease current file size to download.

It also provides the elevation information at a better quality (30m instead of 90m pixel size). I recommend to use SRTM 1 ArcSec whenever possible. But beware that it is not available in some regions:

https://lexikon.astronomie.info/satelliten/srtm/coveragemapbig.gif
Source: https://lexikon.astronomie.info/satelliten/srtm/