Exploration Cap

[Zamte]

Distance influences it as well. The whole idea is, the further from the object you're tracking that you are, the harder it will be to track. However the better your perception and exploration, the further away you're accurate. With no exp and low perception, the slice may very well be nearly half the circle even right next to the object.

[DatOneGuy]

Since pretty much nobody is bothering to raise stealth. I guess it follows that the slice will be narrow almost all the time.

You'd be surprised.
Quite a few people are ,I've done some test tracking