Georectified images

[rese_support]

Our PARGE script uses gc_maini,/atmo to generate the map and .sca files.  When I try and use the output .sca file with georectified images, ATCOR states the file size of the .sca file doesn't match the size of the input image and I can't proceed. Am I doing something wrong? 

The program gc_maini creates a scan angle file in raw geometry. This is meant for the raw-geometry based workflow. To proceed you'd need to invert and prepare the DEM parameters using the function 'gc_prepele'. After this step, the processing can be done in raw geometry which speeds up the process significantly.
If, for any reason you want to use the rectified imagery in ATCOR-4, you'd need to rectify the scan angle file as well using gc_cube_ntile, without applying any interpolation, however.