Tanker orbit bank angle

Is there any way to adjust the bank angle of an aircraft in orbit? I've set up a tanker near some trigger zones which the player is not allowed to cross. In a regular orbit, the tanker will use a bank angle of around 20°, which changes to 10° when approaching for a refuel. This, however, also enlarges the tanker's turn radius, which can cause it to fly into the trigger zones and causes some wonky behavior to get back on course.

I would like the tanker to fly this 10° orbit the entire time, is this possible? If not, how about adjusting the refueling-bank to 20°?

inb4 'just move its path further away'

AFAIK the tanker flight path is managed by the AI because of the racetrack function and can't be altered