Hello @diana_harosa, I’m using SNAP 13 (microwave toolbox updated to 13.0.1) to run the tutorial. The ETAD correction operator works successfully.
However, if I rename the “split_orb” data before applying ETAD correction, I encounter this error.
I run the split, orb, ETAD using graph builder and rename the output. It works successfully. But the TOPSAR-Split does not allow to select the required burst (IW3) as it will auto change to IW1 when running the graph.


