How to get the positions of satellites after the coregistration?

Hi all,
I have performed the back geocoding coregistration of 11 images of the Naples gulf from SA1. Now I need to know the Positions of the imaginary satellites that have acquired the coregistered images. Does anyone know how to get them?

That info is in the orbit files (for the real satellites).

I have found the positions of the real satellites before the coregistration only. I need the hypothetical positions of the satellites after the coregistration.

After coregistration all images are in the geometry of the master scene, so the orbit of the master acquisition should be what you are looking for,.