I ran into a problem trying to open a multitemporal composite (lately added feature in radiometric processing) in ArcGIS/QGIS since the spatial reference (“map info” in the ENVI-hdr) got lost in in the process. So no spatial reference was assigned in the GIS when opening the IMG-files but also a GeoTiff-file export from SNAP wasn’t successful. Checking for the source of the problem, I realised that the spatial reference is already lost in the stacking process. The following two terrain-flattened and terrain corrected GRD products I wanted to stack still contained the spatial reference in the ENVI-hdr.
I used the following properties in the stacking process:
Resampling type: Bilinear Interpolation
Initial offset method: Orbit
Output extents: Maximum
Any ideas what could have gone wrong and how to solve the issue?
Thanks for your help!