The bay is a cavern cut into one end of the asteroid that is GRRAS, it is in the shape of a cylinder about 300m across, one end open to the stars and extending perhaps a kilometer into the rock.  The Snark looks small nestled into its dock along one side of the great space.  

Ships in the bay are attached by docing tubes that, from the perspective of someone debussing from a ship, end in a set of dual airlock doors.  Beyond the tube is a wide corridor, almost big enough to rate the description ‘concourse’.  The gravity changes orientation at this point and there is a curved ramp leading down to the floor and the docking tube is now above.  Along what is now the ceiling of the corridor are thick viewing windows, showing the cavernous docking bay.  

At least one radial ring runs around the circumference of the docking bay.  Emergency pressure doors with yellow warning decals stand open but ready.  A sign on the wall reads:  Intersection D030-016N-00080-0078.

Refer 5-002