TerraSAR-x MGD Terrain Correction and Orbit file

I would like to perform TerrainCorrection of a TerraSAR-x MGD product, does SNAP use the internal orbit of the product?
The product contains the information about the quaternions in the .xml. Does SNAP use this information to make an accurate TerrainCorrection?
Are you ruling out the possibility of SNAP using Sentinel-1 Orbital Files for TerraSAR-x?
Thanks for the clarifications .