co-registration in radar coordinates

[Pinoquio1891]

Hi!
I am trying to create a co-registered stack in radar coordinates. So actually I started to replicate the sweets / compass workflow used for geocoding to do so. Currently I have some difficulties with some of the code. The first issue was, when running run method in s1rdr2geo.py I get an error in line 125 as the default template (I used to create a config files) has no compute_ground_to_sat_east data which is being accessed there, in sequence same for compute_ground_to_sat_north. As a consequence of adding these to the default template s1_cslc_radar.yaml (which maybe does not make too much sense, but solved the error with least changes), I also have to edit the c1_cslc_radar.yaml schema file as otherwise load_validate_yaml (compass/utils/runconfig.py) fails in line 76 when called from _run_config.
The next problem, and this one I could not solve yet, is when co-registering a secondary file to the reference, in case I get an error in load_from_yaml (compass/utils/runconfig.py), line 376, where get_ref_radar_grid_info is called with two arguments, but the function only accepts one.
Maybe someone can comment on that?
Cheers
Christian