In-Universe:
The U.S.S. Defiant in synchronous orbit of Starbase 375 with several Miranda and Excelsior-class ships in the background.
Production:
The --unknown-- model is filmed in a medium shot from forward ventral with a three quarter view. This is an almost identical shot from the previous episode (Behind the Lines 6x04) but the station must be CGI. Why on earth would they re-shoot the scene but from a ever so slightly different angle? It's been documented that the station was recreated as CGI but I'm not sure by who, or exactly when.
